--- _id: '1138' abstract: - lang: eng text: Automata with monitor counters, where the transitions do not depend on counter values, and nested weighted automata are two expressive automata-theoretic frameworks for quantitative properties. For a well-studied and wide class of quantitative functions, we establish that automata with monitor counters and nested weighted automata are equivalent. We study for the first time such quantitative automata under probabilistic semantics. We show that several problems that are undecidable for the classical questions of emptiness and universality become decidable under the probabilistic semantics. We present a complete picture of decidability for such automata, and even an almost-complete picture of computational complexity, for the probabilistic questions we consider. © 2016 ACM. acknowledgement: This research was funded in part by the European Research Council (ERC) under grant agreement 267989 (QUAREM), by the Austrian Science Fund (FWF) projects S11402-N23 (RiSE) and Z211-N23 (Wittgenstein Award), FWF Grant No P23499- N23, FWF NFN Grant No S114 author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Jan full_name: Otop, Jan id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87 last_name: Otop citation: ama: 'Chatterjee K, Henzinger TA, Otop J. Quantitative automata under probabilistic semantics. In: Proceedings of the 31st Annual ACM/IEEE Symposium. IEEE; 2016:76-85. doi:10.1145/2933575.2933588' apa: 'Chatterjee, K., Henzinger, T. A., & Otop, J. (2016). Quantitative automata under probabilistic semantics. In Proceedings of the 31st Annual ACM/IEEE Symposium (pp. 76–85). New York, NY, USA: IEEE. https://doi.org/10.1145/2933575.2933588' chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Quantitative Automata under Probabilistic Semantics.” In Proceedings of the 31st Annual ACM/IEEE Symposium, 76–85. IEEE, 2016. https://doi.org/10.1145/2933575.2933588. ieee: K. Chatterjee, T. A. Henzinger, and J. Otop, “Quantitative automata under probabilistic semantics,” in Proceedings of the 31st Annual ACM/IEEE Symposium, New York, NY, USA, 2016, pp. 76–85. ista: 'Chatterjee K, Henzinger TA, Otop J. 2016. Quantitative automata under probabilistic semantics. Proceedings of the 31st Annual ACM/IEEE Symposium. LICS: Logic in Computer Science, 76–85.' mla: Chatterjee, Krishnendu, et al. “Quantitative Automata under Probabilistic Semantics.” Proceedings of the 31st Annual ACM/IEEE Symposium, IEEE, 2016, pp. 76–85, doi:10.1145/2933575.2933588. short: K. Chatterjee, T.A. Henzinger, J. Otop, in:, Proceedings of the 31st Annual ACM/IEEE Symposium, IEEE, 2016, pp. 76–85. conference: end_date: 2016-07-08 location: New York, NY, USA name: 'LICS: Logic in Computer Science' start_date: 2016-07-05 date_created: 2018-12-11T11:50:21Z date_published: 2016-07-05T00:00:00Z date_updated: 2021-01-12T06:48:34Z day: '05' department: - _id: KrCh - _id: ToHe doi: 10.1145/2933575.2933588 ec_funded: 1 external_id: arxiv: - '1604.06764' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1604.06764 month: '07' oa: 1 oa_version: Preprint page: 76 - 85 project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication: Proceedings of the 31st Annual ACM/IEEE Symposium publication_status: published publisher: IEEE publist_id: '6220' quality_controlled: '1' scopus_import: 1 status: public title: Quantitative automata under probabilistic semantics type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '1140' abstract: - lang: eng text: 'Given a model of a system and an objective, the model-checking question asks whether the model satisfies the objective. We study polynomial-time problems in two classical models, graphs and Markov Decision Processes (MDPs), with respect to several fundamental -regular objectives, e.g., Rabin and Streett objectives. For many of these problems the best-known upper bounds are quadratic or cubic, yet no super-linear lower bounds are known. In this work our contributions are two-fold: First, we present several improved algorithms, and second, we present the first conditional super-linear lower bounds based on widely believed assumptions about the complexity of CNF-SAT and combinatorial Boolean matrix multiplication. A separation result for two models with respect to an objective means a conditional lower bound for one model that is strictly higher than the existing upper bound for the other model, and similarly for two objectives with respect to a model. Our results establish the following separation results: (1) A separation of models (graphs and MDPs) for disjunctive queries of reachability and Büchi objectives. (2) Two kinds of separations of objectives, both for graphs and MDPs, namely, (2a) the separation of dual objectives such as Streett/Rabin objectives, and (2b) the separation of conjunction and disjunction of multiple objectives of the same type such as safety, Büchi, and coBüchi. In summary, our results establish the first model and objective separation results for graphs and MDPs for various classical -regular objectives. Quite strikingly, we establish conditional lower bounds for the disjunction of objectives that are strictly higher than the existing upper bounds for the conjunction of the same objectives. © 2016 ACM.' acknowledgement: "K. C., M. H., and W. D. are partially supported by the \ Vienna\r\nScience and Technology Fund (WWTF) through project ICT15-003.\r\nK. C. is partially supported by the Austrian Science Fund (FWF)\r\nNFN Grant No S11407-N23 (RiSE/SHiNE) and an ERC Start grant\r\n(279307: Graph Games). For W. D., M. H., and V. L. the research\r\nleading to these results has received funding from the European\r\nResearch Council under the European Union’s Seventh Framework\r\nProgramme (FP/2007-2013) / ERC Grant Agreement no. 340506." alternative_title: - Proceedings Symposium on Logic in Computer Science article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Wolfgang full_name: Dvoák, Wolfgang last_name: Dvoák - first_name: Monika H full_name: Henzinger, Monika H id: 540c9bbd-f2de-11ec-812d-d04a5be85630 last_name: Henzinger orcid: 0000-0002-5008-6530 - first_name: Veronika full_name: Loitzenbauer, Veronika last_name: Loitzenbauer citation: ama: 'Chatterjee K, Dvoák W, Henzinger MH, Loitzenbauer V. Model and objective separation with conditional lower bounds: disjunction is harder than conjunction. In: Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science. IEEE; 2016:197-206. doi:10.1145/2933575.2935304' apa: 'Chatterjee, K., Dvoák, W., Henzinger, M. H., & Loitzenbauer, V. (2016). Model and objective separation with conditional lower bounds: disjunction is harder than conjunction. In Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science (pp. 197–206). New York, NY, USA: IEEE. https://doi.org/10.1145/2933575.2935304' chicago: 'Chatterjee, Krishnendu, Wolfgang Dvoák, Monika H Henzinger, and Veronika Loitzenbauer. “Model and Objective Separation with Conditional Lower Bounds: Disjunction Is Harder than Conjunction.” In Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science, 197–206. IEEE, 2016. https://doi.org/10.1145/2933575.2935304.' ieee: 'K. Chatterjee, W. Dvoák, M. H. Henzinger, and V. Loitzenbauer, “Model and objective separation with conditional lower bounds: disjunction is harder than conjunction,” in Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science, New York, NY, USA, 2016, pp. 197–206.' ista: 'Chatterjee K, Dvoák W, Henzinger MH, Loitzenbauer V. 2016. Model and objective separation with conditional lower bounds: disjunction is harder than conjunction. Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science. LICS: Logic in Computer Science, Proceedings Symposium on Logic in Computer Science, , 197–206.' mla: 'Chatterjee, Krishnendu, et al. “Model and Objective Separation with Conditional Lower Bounds: Disjunction Is Harder than Conjunction.” Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science, IEEE, 2016, pp. 197–206, doi:10.1145/2933575.2935304.' short: K. Chatterjee, W. Dvoák, M.H. Henzinger, V. Loitzenbauer, in:, Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science, IEEE, 2016, pp. 197–206. conference: end_date: 2016-07-08 location: New York, NY, USA name: 'LICS: Logic in Computer Science' start_date: 2016-07-05 date_created: 2018-12-11T11:50:22Z date_published: 2016-07-05T00:00:00Z date_updated: 2022-09-09T11:46:17Z day: '05' department: - _id: KrCh doi: 10.1145/2933575.2935304 external_id: arxiv: - '1602.02670' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1602.02670 month: '07' oa: 1 oa_version: Preprint page: 197 - 206 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication: Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science publication_status: published publisher: IEEE publist_id: '6219' quality_controlled: '1' scopus_import: '1' status: public title: 'Model and objective separation with conditional lower bounds: disjunction is harder than conjunction' type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '1182' abstract: - lang: eng text: 'Balanced knockout tournaments are ubiquitous in sports competitions and are also used in decisionmaking and elections. The traditional computational question, that asks to compute a draw (optimal draw) that maximizes the winning probability for a distinguished player, has received a lot of attention. Previous works consider the problem where the pairwise winning probabilities are known precisely, while we study how robust is the winning probability with respect to small errors in the pairwise winning probabilities. First, we present several illuminating examples to establish: (a) there exist deterministic tournaments (where the pairwise winning probabilities are 0 or 1) where one optimal draw is much more robust than the other; and (b) in general, there exist tournaments with slightly suboptimal draws that are more robust than all the optimal draws. The above examples motivate the study of the computational problem of robust draws that guarantee a specified winning probability. Second, we present a polynomial-time algorithm for approximating the robustness of a draw for sufficiently small errors in pairwise winning probabilities, and obtain that the stated computational problem is NP-complete. We also show that two natural cases of deterministic tournaments where the optimal draw could be computed in polynomial time also admit polynomial-time algorithms to compute robust optimal draws.' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Josef full_name: Tkadlec, Josef id: 3F24CCC8-F248-11E8-B48F-1D18A9856A87 last_name: Tkadlec orcid: 0000-0002-1097-9684 citation: ama: 'Chatterjee K, Ibsen-Jensen R, Tkadlec J. Robust draws in balanced knockout tournaments. In: Vol 2016-January. AAAI Press; 2016:172-179.' apa: 'Chatterjee, K., Ibsen-Jensen, R., & Tkadlec, J. (2016). Robust draws in balanced knockout tournaments (Vol. 2016–January, pp. 172–179). Presented at the IJCAI: International Joint Conference on Artificial Intelligence, New York, NY, USA: AAAI Press.' chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Josef Tkadlec. “Robust Draws in Balanced Knockout Tournaments,” 2016–January:172–79. AAAI Press, 2016. ieee: 'K. Chatterjee, R. Ibsen-Jensen, and J. Tkadlec, “Robust draws in balanced knockout tournaments,” presented at the IJCAI: International Joint Conference on Artificial Intelligence, New York, NY, USA, 2016, vol. 2016–January, pp. 172–179.' ista: 'Chatterjee K, Ibsen-Jensen R, Tkadlec J. 2016. Robust draws in balanced knockout tournaments. IJCAI: International Joint Conference on Artificial Intelligence vol. 2016–January, 172–179.' mla: Chatterjee, Krishnendu, et al. Robust Draws in Balanced Knockout Tournaments. Vol. 2016–January, AAAI Press, 2016, pp. 172–79. short: K. Chatterjee, R. Ibsen-Jensen, J. Tkadlec, in:, AAAI Press, 2016, pp. 172–179. conference: end_date: 2016-07-15 location: New York, NY, USA name: 'IJCAI: International Joint Conference on Artificial Intelligence' start_date: 2016-07-09 date_created: 2018-12-11T11:50:35Z date_published: 2016-01-01T00:00:00Z date_updated: 2023-02-21T10:04:26Z day: '01' department: - _id: KrCh ec_funded: 1 language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1604.05090v1 month: '01' oa: 1 oa_version: Preprint page: 172 - 179 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling publication_status: published publisher: AAAI Press publist_id: '6171' quality_controlled: '1' related_material: link: - relation: table_of_contents url: https://www.ijcai.org/proceedings/2016 scopus_import: 1 status: public title: Robust draws in balanced knockout tournaments type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 2016-January year: '2016' ... --- _id: '1200' acknowledgement: C.H. acknowledges generous support from the ISTFELLOW program. author: - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X - first_name: Arne full_name: Traulsen, Arne last_name: Traulsen citation: ama: 'Hilbe C, Traulsen A. Only the combination of mathematics and agent based simulations can leverage the full potential of evolutionary modeling: Comment on “Evolutionary game theory using agent-based methods” by C. Adami, J. Schossau and A. Hintze. Physics of Life Reviews. 2016;19:29-31. doi:10.1016/j.plrev.2016.10.004' apa: 'Hilbe, C., & Traulsen, A. (2016). Only the combination of mathematics and agent based simulations can leverage the full potential of evolutionary modeling: Comment on “Evolutionary game theory using agent-based methods” by C. Adami, J. Schossau and A. Hintze. Physics of Life Reviews. Elsevier. https://doi.org/10.1016/j.plrev.2016.10.004' chicago: 'Hilbe, Christian, and Arne Traulsen. “Only the Combination of Mathematics and Agent Based Simulations Can Leverage the Full Potential of Evolutionary Modeling: Comment on ‘Evolutionary Game Theory Using Agent-Based Methods’ by C. Adami, J. Schossau and A. Hintze.” Physics of Life Reviews. Elsevier, 2016. https://doi.org/10.1016/j.plrev.2016.10.004.' ieee: 'C. Hilbe and A. Traulsen, “Only the combination of mathematics and agent based simulations can leverage the full potential of evolutionary modeling: Comment on ‘Evolutionary game theory using agent-based methods’ by C. Adami, J. Schossau and A. Hintze,” Physics of Life Reviews, vol. 19. Elsevier, pp. 29–31, 2016.' ista: 'Hilbe C, Traulsen A. 2016. Only the combination of mathematics and agent based simulations can leverage the full potential of evolutionary modeling: Comment on “Evolutionary game theory using agent-based methods” by C. Adami, J. Schossau and A. Hintze. Physics of Life Reviews. 19, 29–31.' mla: 'Hilbe, Christian, and Arne Traulsen. “Only the Combination of Mathematics and Agent Based Simulations Can Leverage the Full Potential of Evolutionary Modeling: Comment on ‘Evolutionary Game Theory Using Agent-Based Methods’ by C. Adami, J. Schossau and A. Hintze.” Physics of Life Reviews, vol. 19, Elsevier, 2016, pp. 29–31, doi:10.1016/j.plrev.2016.10.004.' short: C. Hilbe, A. Traulsen, Physics of Life Reviews 19 (2016) 29–31. date_created: 2018-12-11T11:50:40Z date_published: 2016-12-01T00:00:00Z date_updated: 2021-01-12T06:49:03Z day: '01' ddc: - '530' department: - _id: KrCh doi: 10.1016/j.plrev.2016.10.004 ec_funded: 1 file: - access_level: open_access checksum: 95e6dc78278334b99dacbf8822509364 content_type: application/pdf creator: system date_created: 2018-12-12T10:11:02Z date_updated: 2020-07-14T12:44:39Z file_id: '4855' file_name: IST-2017-798-v1+1_comment_adami.pdf file_size: 171352 relation: main_file file_date_updated: 2020-07-14T12:44:39Z has_accepted_license: '1' intvolume: ' 19' language: - iso: eng month: '12' oa: 1 oa_version: Submitted Version page: 29 - 31 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: Physics of Life Reviews publication_status: published publisher: Elsevier publist_id: '6150' pubrep_id: '798' quality_controlled: '1' scopus_import: 1 status: public title: 'Only the combination of mathematics and agent based simulations can leverage the full potential of evolutionary modeling: Comment on “Evolutionary game theory using agent-based methods” by C. Adami, J. Schossau and A. Hintze' tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 19 year: '2016' ... --- _id: '1245' abstract: - lang: eng text: 'To facilitate collaboration in massive online classrooms, instructors must make many decisions. For instance, the following parameters need to be decided when designing a peer-feedback system where students review each others'' essays: the number of students each student must provide feedback to, an algorithm to map feedback providers to receivers, constraints that ensure students do not become free-riders (receiving feedback but not providing it), the best times to receive feedback to improve learning etc. While instructors can answer these questions by running experiments or invoking past experience, game-theoretic models with data from online learning platforms can identify better initial designs for further improvements. As an example, we explore the design space of a peer feedback system by modeling it using game theory. Our simulations show that incentivizing students to provide feedback requires the value obtained from receiving a feedback to exceed the cost of providing it by a large factor (greater than 7). Furthermore, hiding feedback from low-effort students incentivizes them to provide more feedback.' acknowledgement: 'ERC Start Grant Graph Games 279307 supported this research. ' author: - first_name: Vineet full_name: Pandey, Vineet last_name: Pandey - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X citation: ama: 'Pandey V, Chatterjee K. Game-theoretic models identify useful principles for peer collaboration in online learning platforms. In: Proceedings of the ACM Conference on Computer Supported Cooperative Work. Vol 26. ACM; 2016:365-368. doi:10.1145/2818052.2869122' apa: 'Pandey, V., & Chatterjee, K. (2016). Game-theoretic models identify useful principles for peer collaboration in online learning platforms. In Proceedings of the ACM Conference on Computer Supported Cooperative Work (Vol. 26, pp. 365–368). San Francisco, CA, USA: ACM. https://doi.org/10.1145/2818052.2869122' chicago: Pandey, Vineet, and Krishnendu Chatterjee. “Game-Theoretic Models Identify Useful Principles for Peer Collaboration in Online Learning Platforms.” In Proceedings of the ACM Conference on Computer Supported Cooperative Work, 26:365–68. ACM, 2016. https://doi.org/10.1145/2818052.2869122. ieee: V. Pandey and K. Chatterjee, “Game-theoretic models identify useful principles for peer collaboration in online learning platforms,” in Proceedings of the ACM Conference on Computer Supported Cooperative Work, San Francisco, CA, USA, 2016, vol. 26, no. Februar-2016, pp. 365–368. ista: 'Pandey V, Chatterjee K. 2016. Game-theoretic models identify useful principles for peer collaboration in online learning platforms. Proceedings of the ACM Conference on Computer Supported Cooperative Work. CSCW: Computer Supported Cooperative Work and Social Computing vol. 26, 365–368.' mla: Pandey, Vineet, and Krishnendu Chatterjee. “Game-Theoretic Models Identify Useful Principles for Peer Collaboration in Online Learning Platforms.” Proceedings of the ACM Conference on Computer Supported Cooperative Work, vol. 26, no. Februar-2016, ACM, 2016, pp. 365–68, doi:10.1145/2818052.2869122. short: V. Pandey, K. Chatterjee, in:, Proceedings of the ACM Conference on Computer Supported Cooperative Work, ACM, 2016, pp. 365–368. conference: end_date: 2016-03-02 location: San Francisco, CA, USA name: 'CSCW: Computer Supported Cooperative Work and Social Computing' start_date: 2016-02-26 date_created: 2018-12-11T11:50:55Z date_published: 2016-02-27T00:00:00Z date_updated: 2021-01-12T06:49:22Z day: '27' department: - _id: KrCh doi: 10.1145/2818052.2869122 ec_funded: 1 intvolume: ' 26' issue: Februar-2016 language: - iso: eng month: '02' oa_version: None page: 365 - 368 project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Proceedings of the ACM Conference on Computer Supported Cooperative Work publication_status: published publisher: ACM publist_id: '6083' quality_controlled: '1' scopus_import: 1 status: public title: Game-theoretic models identify useful principles for peer collaboration in online learning platforms type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 26 year: '2016' ... --- _id: '1325' abstract: - lang: eng text: We study graphs and two-player games in which rewards are assigned to states, and the goal of the players is to satisfy or dissatisfy certain property of the generated outcome, given as a mean payoff property. Since the notion of mean-payoff does not reflect possible fluctuations from the mean-payoff along a run, we propose definitions and algorithms for capturing the stability of the system, and give algorithms for deciding if a given mean payoff and stability objective can be ensured in the system. acknowledgement: "The work has been supported by the Czech Science Foundation, grant No. 15-17564S, by EPSRC grant\r\nEP/M023656/1, and by the People Programme (Marie Curie Actions) of the European Union’s Seventh\r\nFramework Programme (FP7/2007-2013) under REA grant agreement no [291734]" alternative_title: - LIPIcs article_number: '10' author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Vojtěch full_name: Forejt, Vojtěch last_name: Forejt - first_name: Antonín full_name: Kučera, Antonín last_name: Kučera - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny citation: ama: 'Brázdil T, Forejt V, Kučera A, Novotný P. Stability in graphs and games. In: Vol 59. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2016. doi:10.4230/LIPIcs.CONCUR.2016.10' apa: 'Brázdil, T., Forejt, V., Kučera, A., & Novotný, P. (2016). Stability in graphs and games (Vol. 59). Presented at the CONCUR: Concurrency Theory, Quebec City, Canada: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2016.10' chicago: Brázdil, Tomáš, Vojtěch Forejt, Antonín Kučera, and Petr Novotný. “Stability in Graphs and Games,” Vol. 59. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016. https://doi.org/10.4230/LIPIcs.CONCUR.2016.10. ieee: 'T. Brázdil, V. Forejt, A. Kučera, and P. Novotný, “Stability in graphs and games,” presented at the CONCUR: Concurrency Theory, Quebec City, Canada, 2016, vol. 59.' ista: 'Brázdil T, Forejt V, Kučera A, Novotný P. 2016. Stability in graphs and games. CONCUR: Concurrency Theory, LIPIcs, vol. 59, 10.' mla: Brázdil, Tomáš, et al. Stability in Graphs and Games. Vol. 59, 10, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016, doi:10.4230/LIPIcs.CONCUR.2016.10. short: T. Brázdil, V. Forejt, A. Kučera, P. Novotný, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016. conference: end_date: 2016-08-26 location: Quebec City, Canada name: 'CONCUR: Concurrency Theory' start_date: 2016-08-23 date_created: 2018-12-11T11:51:23Z date_published: 2016-08-01T00:00:00Z date_updated: 2021-01-12T06:49:53Z day: '01' ddc: - '004' department: - _id: KrCh doi: 10.4230/LIPIcs.CONCUR.2016.10 ec_funded: 1 file: - access_level: open_access checksum: 3c2dc6ab0358f8aa8f7aa7d6c1293159 content_type: application/pdf creator: system date_created: 2018-12-12T10:16:40Z date_updated: 2020-07-14T12:44:44Z file_id: '5229' file_name: IST-2016-665-v1+1_Forejt_et_al__Stability_in_graphs_and_games.pdf file_size: 553648 relation: main_file file_date_updated: 2020-07-14T12:44:44Z has_accepted_license: '1' intvolume: ' 59' language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '5944' pubrep_id: '665' quality_controlled: '1' scopus_import: 1 status: public title: Stability in graphs and games tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 59 year: '2016' ... --- _id: '1324' abstract: - lang: eng text: 'DEC-POMDPs extend POMDPs to a multi-agent setting, where several agents operate in an uncertain environment independently to achieve a joint objective. DEC-POMDPs have been studied with finite-horizon and infinite-horizon discounted-sum objectives, and there exist solvers both for exact and approximate solutions. In this work we consider Goal-DEC-POMDPs, where given a set of target states, the objective is to ensure that the target set is reached with minimal cost. We consider the indefinite-horizon (infinite-horizon with either discounted-sum, or undiscounted-sum, where absorbing goal states have zero-cost) problem. We present a new and novel method to solve the problem that extends methods for finite-horizon DEC-POMDPs and the RTDP-Bel approach for POMDPs. We present experimental results on several examples, and show that our approach presents promising results. Copyright ' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik citation: ama: 'Chatterjee K, Chmelik M. Indefinite-horizon reachability in Goal-DEC-POMDPs. In: Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling. Vol 2016-January. AAAI Press; 2016:88-96.' apa: 'Chatterjee, K., & Chmelik, M. (2016). Indefinite-horizon reachability in Goal-DEC-POMDPs. In Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling (Vol. 2016–January, pp. 88–96). London, United Kingdom: AAAI Press.' chicago: Chatterjee, Krishnendu, and Martin Chmelik. “Indefinite-Horizon Reachability in Goal-DEC-POMDPs.” In Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling, 2016–January:88–96. AAAI Press, 2016. ieee: K. Chatterjee and M. Chmelik, “Indefinite-horizon reachability in Goal-DEC-POMDPs,” in Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling, London, United Kingdom, 2016, vol. 2016–January, pp. 88–96. ista: 'Chatterjee K, Chmelik M. 2016. Indefinite-horizon reachability in Goal-DEC-POMDPs. Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling. ICAPS: International Conference on Automated Planning and Scheduling vol. 2016–January, 88–96.' mla: Chatterjee, Krishnendu, and Martin Chmelik. “Indefinite-Horizon Reachability in Goal-DEC-POMDPs.” Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling, vol. 2016–January, AAAI Press, 2016, pp. 88–96. short: K. Chatterjee, M. Chmelik, in:, Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling, AAAI Press, 2016, pp. 88–96. conference: end_date: 2016-06-17 location: London, United Kingdom name: 'ICAPS: International Conference on Automated Planning and Scheduling' start_date: 2016-06-12 date_created: 2018-12-11T11:51:22Z date_published: 2016-01-01T00:00:00Z date_updated: 2021-01-12T06:49:53Z day: '01' department: - _id: KrCh ec_funded: 1 language: - iso: eng main_file_link: - url: http://www.aaai.org/ocs/index.php/ICAPS/ICAPS16/paper/view/12999 month: '01' oa_version: None page: 88 - 96 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publication: Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling publication_status: published publisher: AAAI Press publist_id: '5946' quality_controlled: '1' scopus_import: 1 status: public title: Indefinite-horizon reachability in Goal-DEC-POMDPs type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 2016-January year: '2016' ... --- _id: '1327' abstract: - lang: eng text: 'We consider partially observable Markov decision processes (POMDPs) with a set of target states and positive integer costs associated with every transition. The traditional optimization objective (stochastic shortest path) asks to minimize the expected total cost until the target set is reached. We extend the traditional framework of POMDPs to model energy consumption, which represents a hard constraint. The energy levels may increase and decrease with transitions, and the hard constraint requires that the energy level must remain positive in all steps till the target is reached. First, we present a novel algorithm for solving POMDPs with energy levels, developing on existing POMDP solvers and using RTDP as its main method. Our second contribution is related to policy representation. For larger POMDP instances the policies computed by existing solvers are too large to be understandable. We present an automated procedure based on machine learning techniques that automatically extracts important decisions of the policy allowing us to compute succinct human readable policies. Finally, we show experimentally that our algorithm performs well and computes succinct policies on a number of POMDP instances from the literature that were naturally enhanced with energy levels. ' author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Anchit full_name: Gupta, Anchit last_name: Gupta - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny citation: ama: 'Brázdil T, Chatterjee K, Chmelik M, Gupta A, Novotný P. Stochastic shortest path with energy constraints in POMDPs. In: Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems. ACM; 2016:1465-1466.' apa: 'Brázdil, T., Chatterjee, K., Chmelik, M., Gupta, A., & Novotný, P. (2016). Stochastic shortest path with energy constraints in POMDPs. In Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems (pp. 1465–1466). Singapore: ACM.' chicago: Brázdil, Tomáš, Krishnendu Chatterjee, Martin Chmelik, Anchit Gupta, and Petr Novotný. “Stochastic Shortest Path with Energy Constraints in POMDPs.” In Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems, 1465–66. ACM, 2016. ieee: T. Brázdil, K. Chatterjee, M. Chmelik, A. Gupta, and P. Novotný, “Stochastic shortest path with energy constraints in POMDPs,” in Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems, Singapore, 2016, pp. 1465–1466. ista: 'Brázdil T, Chatterjee K, Chmelik M, Gupta A, Novotný P. 2016. Stochastic shortest path with energy constraints in POMDPs. Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems. AAMAS: Autonomous Agents & Multiagent Systems, 1465–1466.' mla: Brázdil, Tomáš, et al. “Stochastic Shortest Path with Energy Constraints in POMDPs.” Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems, ACM, 2016, pp. 1465–66. short: T. Brázdil, K. Chatterjee, M. Chmelik, A. Gupta, P. Novotný, in:, Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems, ACM, 2016, pp. 1465–1466. conference: end_date: 2016-05-13 location: Singapore name: 'AAMAS: Autonomous Agents & Multiagent Systems' start_date: 2016-05-09 date_created: 2018-12-11T11:51:23Z date_published: 2016-01-01T00:00:00Z date_updated: 2021-01-12T06:49:54Z day: '01' department: - _id: KrCh ec_funded: 1 language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1602.07565 month: '01' oa: 1 oa_version: Preprint page: 1465 - 1466 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems publication_status: published publisher: ACM publist_id: '5942' quality_controlled: '1' scopus_import: 1 status: public title: Stochastic shortest path with energy constraints in POMDPs type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '1326' abstract: - lang: eng text: 'Energy Markov Decision Processes (EMDPs) are finite-state Markov decision processes where each transition is assigned an integer counter update and a rational payoff. An EMDP configuration is a pair s(n), where s is a control state and n is the current counter value. The configurations are changed by performing transitions in the standard way. We consider the problem of computing a safe strategy (i.e., a strategy that keeps the counter non-negative) which maximizes the expected mean payoff. ' acknowledgement: The research was funded by the Czech Science Foundation Grant No. P202/12/G061 and by the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013) under REA grant agreement no [291734]. alternative_title: - LNCS author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Antonín full_name: Kučera, Antonín last_name: Kučera - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny citation: ama: 'Brázdil T, Kučera A, Novotný P. Optimizing the expected mean payoff in Energy Markov Decision Processes. In: Vol 9938. Springer; 2016:32-49. doi:10.1007/978-3-319-46520-3_3' apa: 'Brázdil, T., Kučera, A., & Novotný, P. (2016). Optimizing the expected mean payoff in Energy Markov Decision Processes (Vol. 9938, pp. 32–49). Presented at the ATVA: Automated Technology for Verification and Analysis, Chiba, Japan: Springer. https://doi.org/10.1007/978-3-319-46520-3_3' chicago: Brázdil, Tomáš, Antonín Kučera, and Petr Novotný. “Optimizing the Expected Mean Payoff in Energy Markov Decision Processes,” 9938:32–49. Springer, 2016. https://doi.org/10.1007/978-3-319-46520-3_3. ieee: 'T. Brázdil, A. Kučera, and P. Novotný, “Optimizing the expected mean payoff in Energy Markov Decision Processes,” presented at the ATVA: Automated Technology for Verification and Analysis, Chiba, Japan, 2016, vol. 9938, pp. 32–49.' ista: 'Brázdil T, Kučera A, Novotný P. 2016. Optimizing the expected mean payoff in Energy Markov Decision Processes. ATVA: Automated Technology for Verification and Analysis, LNCS, vol. 9938, 32–49.' mla: Brázdil, Tomáš, et al. Optimizing the Expected Mean Payoff in Energy Markov Decision Processes. Vol. 9938, Springer, 2016, pp. 32–49, doi:10.1007/978-3-319-46520-3_3. short: T. Brázdil, A. Kučera, P. Novotný, in:, Springer, 2016, pp. 32–49. conference: end_date: 2016-10-20 location: Chiba, Japan name: 'ATVA: Automated Technology for Verification and Analysis' start_date: 2016-10-17 date_created: 2018-12-11T11:51:23Z date_published: 2016-09-22T00:00:00Z date_updated: 2021-01-12T06:49:53Z day: '22' department: - _id: KrCh doi: 10.1007/978-3-319-46520-3_3 ec_funded: 1 intvolume: ' 9938' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1607.00678 month: '09' oa: 1 oa_version: Preprint page: 32 - 49 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_status: published publisher: Springer publist_id: '5943' quality_controlled: '1' scopus_import: 1 status: public title: Optimizing the expected mean payoff in Energy Markov Decision Processes type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 9938 year: '2016' ... --- _id: '1333' abstract: - lang: eng text: Social dilemmas force players to balance between personal and collective gain. In many dilemmas, such as elected governments negotiating climate-change mitigation measures, the decisions are made not by individual players but by their representatives. However, the behaviour of representatives in social dilemmas has not been investigated experimentally. Here inspired by the negotiations for greenhouse-gas emissions reductions, we experimentally study a collective-risk social dilemma that involves representatives deciding on behalf of their fellow group members. Representatives can be re-elected or voted out after each consecutive collective-risk game. Selfish players are preferentially elected and are hence found most frequently in the "representatives" treatment. Across all treatments, we identify the selfish players as extortioners. As predicted by our mathematical model, their steadfast strategies enforce cooperation from fair players who finally compensate almost completely the deficit caused by the extortionate co-players. Everybody gains, but the extortionate representatives and their groups gain the most. acknowledgement: We thank the students for participation; H.-J. Krambeck for writing the software for the game; H. Arndt, T. Bakker, L. Becks, H. Brendelberger, S. Dobler and T. Reusch for support; and the Max Planck Society for the Advancement of Science for funding. article_number: '10915' author: - first_name: Manfred full_name: Milinski, Manfred last_name: Milinski - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X - first_name: Dirk full_name: Semmann, Dirk last_name: Semmann - first_name: Ralf full_name: Sommerfeld, Ralf last_name: Sommerfeld - first_name: Jochem full_name: Marotzke, Jochem last_name: Marotzke citation: ama: Milinski M, Hilbe C, Semmann D, Sommerfeld R, Marotzke J. Humans choose representatives who enforce cooperation in social dilemmas through extortion. Nature Communications. 2016;7. doi:10.1038/ncomms10915 apa: Milinski, M., Hilbe, C., Semmann, D., Sommerfeld, R., & Marotzke, J. (2016). Humans choose representatives who enforce cooperation in social dilemmas through extortion. Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms10915 chicago: Milinski, Manfred, Christian Hilbe, Dirk Semmann, Ralf Sommerfeld, and Jochem Marotzke. “Humans Choose Representatives Who Enforce Cooperation in Social Dilemmas through Extortion.” Nature Communications. Nature Publishing Group, 2016. https://doi.org/10.1038/ncomms10915. ieee: M. Milinski, C. Hilbe, D. Semmann, R. Sommerfeld, and J. Marotzke, “Humans choose representatives who enforce cooperation in social dilemmas through extortion,” Nature Communications, vol. 7. Nature Publishing Group, 2016. ista: Milinski M, Hilbe C, Semmann D, Sommerfeld R, Marotzke J. 2016. Humans choose representatives who enforce cooperation in social dilemmas through extortion. Nature Communications. 7, 10915. mla: Milinski, Manfred, et al. “Humans Choose Representatives Who Enforce Cooperation in Social Dilemmas through Extortion.” Nature Communications, vol. 7, 10915, Nature Publishing Group, 2016, doi:10.1038/ncomms10915. short: M. Milinski, C. Hilbe, D. Semmann, R. Sommerfeld, J. Marotzke, Nature Communications 7 (2016). date_created: 2018-12-11T11:51:25Z date_published: 2016-03-07T00:00:00Z date_updated: 2021-01-12T06:49:57Z day: '07' ddc: - '519' - '530' - '599' department: - _id: KrCh doi: 10.1038/ncomms10915 file: - access_level: open_access checksum: 9ea0d7ce59a555a1cb8353d5559407cb content_type: application/pdf creator: system date_created: 2018-12-12T10:10:44Z date_updated: 2020-07-14T12:44:44Z file_id: '4834' file_name: IST-2016-661-v1+1_ncomms10915.pdf file_size: 1432577 relation: main_file file_date_updated: 2020-07-14T12:44:44Z has_accepted_license: '1' intvolume: ' 7' language: - iso: eng month: '03' oa: 1 oa_version: Published Version publication: Nature Communications publication_status: published publisher: Nature Publishing Group publist_id: '5935' pubrep_id: '661' quality_controlled: '1' scopus_import: 1 status: public title: Humans choose representatives who enforce cooperation in social dilemmas through extortion tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 7 year: '2016' ... --- _id: '1335' abstract: - lang: eng text: In this paper we review various automata-theoretic formalisms for expressing quantitative properties. We start with finite-state Boolean automata that express the traditional regular properties. We then consider weighted ω-automata that can measure the average density of events, which finite-state Boolean automata cannot. However, even weighted ω-automata cannot express basic performance properties like average response time. We finally consider two formalisms of weighted ω-automata with monitors, where the monitors are either (a) counters or (b) weighted automata themselves. We present a translation result to establish that these two formalisms are equivalent. Weighted ω-automata with monitors generalize weighted ω-automata, and can express average response time property. They present a natural, robust, and expressive framework for quantitative specifications, with important decidable properties. alternative_title: - LNCS author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Jan full_name: Otop, Jan id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87 last_name: Otop citation: ama: 'Chatterjee K, Henzinger TA, Otop J. Quantitative monitor automata. In: Vol 9837. Springer; 2016:23-38. doi:10.1007/978-3-662-53413-7_2' apa: 'Chatterjee, K., Henzinger, T. A., & Otop, J. (2016). Quantitative monitor automata (Vol. 9837, pp. 23–38). Presented at the SAS: Static Analysis Symposium, Edinburgh, United Kingdom: Springer. https://doi.org/10.1007/978-3-662-53413-7_2' chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Quantitative Monitor Automata,” 9837:23–38. Springer, 2016. https://doi.org/10.1007/978-3-662-53413-7_2. ieee: 'K. Chatterjee, T. A. Henzinger, and J. Otop, “Quantitative monitor automata,” presented at the SAS: Static Analysis Symposium, Edinburgh, United Kingdom, 2016, vol. 9837, pp. 23–38.' ista: 'Chatterjee K, Henzinger TA, Otop J. 2016. Quantitative monitor automata. SAS: Static Analysis Symposium, LNCS, vol. 9837, 23–38.' mla: Chatterjee, Krishnendu, et al. Quantitative Monitor Automata. Vol. 9837, Springer, 2016, pp. 23–38, doi:10.1007/978-3-662-53413-7_2. short: K. Chatterjee, T.A. Henzinger, J. Otop, in:, Springer, 2016, pp. 23–38. conference: end_date: 2016-09-10 location: Edinburgh, United Kingdom name: 'SAS: Static Analysis Symposium' start_date: 2016-09-08 date_created: 2018-12-11T11:51:26Z date_published: 2016-08-31T00:00:00Z date_updated: 2021-01-12T06:49:58Z day: '31' department: - _id: KrCh - _id: ToHe doi: 10.1007/978-3-662-53413-7_2 ec_funded: 1 intvolume: ' 9837' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1604.06764 month: '08' oa: 1 oa_version: Preprint page: 23 - 38 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication_status: published publisher: Springer publist_id: '5932' quality_controlled: '1' scopus_import: 1 status: public title: Quantitative monitor automata type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 9837 year: '2016' ... --- _id: '1340' abstract: - lang: eng text: We study repeated games with absorbing states, a type of two-player, zero-sum concurrent mean-payoff games with the prototypical example being the Big Match of Gillete (1957). These games may not allow optimal strategies but they always have ε-optimal strategies. In this paper we design ε-optimal strategies for Player 1 in these games that use only O(log log T) space. Furthermore, we construct strategies for Player 1 that use space s(T), for an arbitrary small unbounded non-decreasing function s, and which guarantee an ε-optimal value for Player 1 in the limit superior sense. The previously known strategies use space Ω(log T) and it was known that no strategy can use constant space if it is ε-optimal even in the limit superior sense. We also give a complementary lower bound. Furthermore, we also show that no Markov strategy, even extended with finite memory, can ensure value greater than 0 in the Big Match, answering a question posed by Neyman [11]. alternative_title: - LNCS author: - first_name: Kristoffer full_name: Hansen, Kristoffer last_name: Hansen - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Michal full_name: Koucký, Michal last_name: Koucký citation: ama: 'Hansen K, Ibsen-Jensen R, Koucký M. The big match in small space. In: Vol 9928. Springer; 2016:64-76. doi:10.1007/978-3-662-53354-3_6' apa: 'Hansen, K., Ibsen-Jensen, R., & Koucký, M. (2016). The big match in small space (Vol. 9928, pp. 64–76). Presented at the SAGT: Symposium on Algorithmic Game Theory, Liverpool, United Kingdom: Springer. https://doi.org/10.1007/978-3-662-53354-3_6' chicago: Hansen, Kristoffer, Rasmus Ibsen-Jensen, and Michal Koucký. “The Big Match in Small Space,” 9928:64–76. Springer, 2016. https://doi.org/10.1007/978-3-662-53354-3_6. ieee: 'K. Hansen, R. Ibsen-Jensen, and M. Koucký, “The big match in small space,” presented at the SAGT: Symposium on Algorithmic Game Theory, Liverpool, United Kingdom, 2016, vol. 9928, pp. 64–76.' ista: 'Hansen K, Ibsen-Jensen R, Koucký M. 2016. The big match in small space. SAGT: Symposium on Algorithmic Game Theory, LNCS, vol. 9928, 64–76.' mla: Hansen, Kristoffer, et al. The Big Match in Small Space. Vol. 9928, Springer, 2016, pp. 64–76, doi:10.1007/978-3-662-53354-3_6. short: K. Hansen, R. Ibsen-Jensen, M. Koucký, in:, Springer, 2016, pp. 64–76. conference: end_date: 2016-09-21 location: Liverpool, United Kingdom name: 'SAGT: Symposium on Algorithmic Game Theory' start_date: 2016-09-19 date_created: 2018-12-11T11:51:28Z date_published: 2016-09-01T00:00:00Z date_updated: 2021-01-12T06:50:00Z day: '01' department: - _id: KrCh doi: 10.1007/978-3-662-53354-3_6 ec_funded: 1 intvolume: ' 9928' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1604.07634 month: '09' oa: 1 oa_version: Preprint page: 64 - 76 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_status: published publisher: Springer publist_id: '5927' quality_controlled: '1' scopus_import: 1 status: public title: The big match in small space type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 9928 year: '2016' ... --- _id: '1380' abstract: - lang: eng text: We consider higher-dimensional versions of Kannan and Lipton's Orbit Problem - determining whether a target vector space V may be reached from a starting point x under repeated applications of a linear transformation A. Answering two questions posed by Kannan and Lipton in the 1980s, we show that when V has dimension one, this problem is solvable in polynomial time, and when V has dimension two or three, the problem is in NPRP. article_number: '23' author: - first_name: Ventsislav K full_name: Chonev, Ventsislav K id: 36CBE2E6-F248-11E8-B48F-1D18A9856A87 last_name: Chonev - first_name: Joël full_name: Ouaknine, Joël last_name: Ouaknine - first_name: James full_name: Worrell, James last_name: Worrell citation: ama: Chonev VK, Ouaknine J, Worrell J. On the complexity of the orbit problem. Journal of the ACM. 2016;63(3). doi:10.1145/2857050 apa: Chonev, V. K., Ouaknine, J., & Worrell, J. (2016). On the complexity of the orbit problem. Journal of the ACM. ACM. https://doi.org/10.1145/2857050 chicago: Chonev, Ventsislav K, Joël Ouaknine, and James Worrell. “On the Complexity of the Orbit Problem.” Journal of the ACM. ACM, 2016. https://doi.org/10.1145/2857050. ieee: V. K. Chonev, J. Ouaknine, and J. Worrell, “On the complexity of the orbit problem,” Journal of the ACM, vol. 63, no. 3. ACM, 2016. ista: Chonev VK, Ouaknine J, Worrell J. 2016. On the complexity of the orbit problem. Journal of the ACM. 63(3), 23. mla: Chonev, Ventsislav K., et al. “On the Complexity of the Orbit Problem.” Journal of the ACM, vol. 63, no. 3, 23, ACM, 2016, doi:10.1145/2857050. short: V.K. Chonev, J. Ouaknine, J. Worrell, Journal of the ACM 63 (2016). date_created: 2018-12-11T11:51:41Z date_published: 2016-06-01T00:00:00Z date_updated: 2021-01-12T06:50:17Z day: '01' department: - _id: KrCh doi: 10.1145/2857050 intvolume: ' 63' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1303.2981 month: '06' oa: 1 oa_version: Preprint publication: Journal of the ACM publication_status: published publisher: ACM publist_id: '5831' quality_controlled: '1' scopus_import: 1 status: public title: On the complexity of the orbit problem type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 63 year: '2016' ... --- _id: '1389' abstract: - lang: eng text: "The continuous evolution of a wide variety of systems, including continous-time Markov chains and linear hybrid automata, can be\r\ndescribed in terms of linear differential equations. In this paper we study the decision problem of whether the solution x(t) of a system of linear differential equations dx/dt = Ax reaches a target halfspace infinitely often. This recurrent reachability problem can\r\nequivalently be formulated as the following Infinite Zeros Problem: does a real-valued function f:R≥0 --> R satisfying a given linear\r\ndifferential equation have infinitely many zeros? Our main decidability result is that if the differential equation has order at most 7, then the Infinite Zeros Problem is decidable. On the other hand, we show that a decision procedure for the Infinite Zeros Problem at order 9 (and above) would entail a major breakthrough in Diophantine Approximation, specifically an algorithm for computing the Lagrange constants of arbitrary real algebraic numbers to arbitrary precision." author: - first_name: Ventsislav K full_name: Chonev, Ventsislav K id: 36CBE2E6-F248-11E8-B48F-1D18A9856A87 last_name: Chonev - first_name: Joël full_name: Ouaknine, Joël last_name: Ouaknine - first_name: James full_name: Worrell, James last_name: Worrell citation: ama: 'Chonev VK, Ouaknine J, Worrell J. On recurrent reachability for continuous linear dynamical systems. In: LICS ’16. IEEE; 2016:515-524. doi:10.1145/2933575.2934548' apa: 'Chonev, V. K., Ouaknine, J., & Worrell, J. (2016). On recurrent reachability for continuous linear dynamical systems. In LICS ’16 (pp. 515–524). New York, NY, USA: IEEE. https://doi.org/10.1145/2933575.2934548' chicago: Chonev, Ventsislav K, Joël Ouaknine, and James Worrell. “On Recurrent Reachability for Continuous Linear Dynamical Systems.” In LICS ’16, 515–24. IEEE, 2016. https://doi.org/10.1145/2933575.2934548. ieee: V. K. Chonev, J. Ouaknine, and J. Worrell, “On recurrent reachability for continuous linear dynamical systems,” in LICS ’16, New York, NY, USA, 2016, pp. 515–524. ista: 'Chonev VK, Ouaknine J, Worrell J. 2016. On recurrent reachability for continuous linear dynamical systems. LICS ’16. LICS: Logic in Computer Science, 515–524.' mla: Chonev, Ventsislav K., et al. “On Recurrent Reachability for Continuous Linear Dynamical Systems.” LICS ’16, IEEE, 2016, pp. 515–24, doi:10.1145/2933575.2934548. short: V.K. Chonev, J. Ouaknine, J. Worrell, in:, LICS ’16, IEEE, 2016, pp. 515–524. conference: end_date: 2018-07-08 location: New York, NY, USA name: 'LICS: Logic in Computer Science' start_date: 2018-07-05 date_created: 2018-12-11T11:51:44Z date_published: 2016-07-05T00:00:00Z date_updated: 2021-01-12T06:50:20Z day: '05' department: - _id: KrCh doi: 10.1145/2933575.2934548 ec_funded: 1 language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1507.03632 month: '07' oa: 1 oa_version: Preprint page: 515 - 524 project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling publication: LICS '16 publication_status: published publisher: IEEE publist_id: '5820' quality_controlled: '1' scopus_import: 1 status: public title: On recurrent reachability for continuous linear dynamical systems type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '1426' abstract: - lang: eng text: 'Brood parasites exploit their host in order to increase their own fitness. Typically, this results in an arms race between parasite trickery and host defence. Thus, it is puzzling to observe hosts that accept parasitism without any resistance. The ‘mafia’ hypothesis suggests that these hosts accept parasitism to avoid retaliation. Retaliation has been shown to evolve when the hosts condition their response to mafia parasites, who use depredation as a targeted response to rejection. However, it is unclear if acceptance would also emerge when ‘farming’ parasites are present in the population. Farming parasites use depredation to synchronize the timing with the host, destroying mature clutches to force the host to re-nest. Herein, we develop an evolutionary model to analyse the interaction between depredatory parasites and their hosts. We show that coevolutionary cycles between farmers and mafia can still induce host acceptance of brood parasites. However, this equilibrium is unstable and in the long-run the dynamics of this host–parasite interaction exhibits strong oscillations: when farmers are the majority, accepters conditional to mafia (the host will reject first and only accept after retaliation by the parasite) have a higher fitness than unconditional accepters (the host always accepts parasitism). This leads to an increase in mafia parasites’ fitness and in turn induce an optimal environment for accepter hosts.' acknowledgement: C.H. gratefully acknowledges funding by the Schrödinger scholarship of the Austrian Science Fund (FWF) J3475. article_number: '160036' author: - first_name: Maria full_name: Chakra, Maria last_name: Chakra - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X - first_name: Arne full_name: Traulsen, Arne last_name: Traulsen citation: ama: Chakra M, Hilbe C, Traulsen A. Coevolutionary interactions between farmers and mafia induce host acceptance of avian brood parasites. Royal Society Open Science. 2016;3(5). doi:10.1098/rsos.160036 apa: Chakra, M., Hilbe, C., & Traulsen, A. (2016). Coevolutionary interactions between farmers and mafia induce host acceptance of avian brood parasites. Royal Society Open Science. Royal Society, The. https://doi.org/10.1098/rsos.160036 chicago: Chakra, Maria, Christian Hilbe, and Arne Traulsen. “Coevolutionary Interactions between Farmers and Mafia Induce Host Acceptance of Avian Brood Parasites.” Royal Society Open Science. Royal Society, The, 2016. https://doi.org/10.1098/rsos.160036. ieee: M. Chakra, C. Hilbe, and A. Traulsen, “Coevolutionary interactions between farmers and mafia induce host acceptance of avian brood parasites,” Royal Society Open Science, vol. 3, no. 5. Royal Society, The, 2016. ista: Chakra M, Hilbe C, Traulsen A. 2016. Coevolutionary interactions between farmers and mafia induce host acceptance of avian brood parasites. Royal Society Open Science. 3(5), 160036. mla: Chakra, Maria, et al. “Coevolutionary Interactions between Farmers and Mafia Induce Host Acceptance of Avian Brood Parasites.” Royal Society Open Science, vol. 3, no. 5, 160036, Royal Society, The, 2016, doi:10.1098/rsos.160036. short: M. Chakra, C. Hilbe, A. Traulsen, Royal Society Open Science 3 (2016). date_created: 2018-12-11T11:51:57Z date_published: 2016-05-01T00:00:00Z date_updated: 2021-01-12T06:50:39Z day: '01' ddc: - '000' department: - _id: KrCh doi: 10.1098/rsos.160036 file: - access_level: open_access checksum: bf84211b31fe87451e738ba301d729c3 content_type: application/pdf creator: system date_created: 2018-12-12T10:14:49Z date_updated: 2020-07-14T12:44:53Z file_id: '5104' file_name: IST-2016-589-v1+1_160036.full.pdf file_size: 937002 relation: main_file file_date_updated: 2020-07-14T12:44:53Z has_accepted_license: '1' intvolume: ' 3' issue: '5' language: - iso: eng month: '05' oa: 1 oa_version: Published Version publication: Royal Society Open Science publication_status: published publisher: Royal Society, The publist_id: '5776' pubrep_id: '589' quality_controlled: '1' scopus_import: 1 status: public title: Coevolutionary interactions between farmers and mafia induce host acceptance of avian brood parasites tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 3 year: '2016' ... --- _id: '1423' abstract: - lang: eng text: 'Direct reciprocity is a mechanism for the evolution of cooperation based on repeated interactions. When individuals meet repeatedly, they can use conditional strategies to enforce cooperative outcomes that would not be feasible in one-shot social dilemmas. Direct reciprocity requires that individuals keep track of their past interactions and find the right response. However, there are natural bounds on strategic complexity: Humans find it difficult to remember past interactions accurately, especially over long timespans. Given these limitations, it is natural to ask how complex strategies need to be for cooperation to evolve. Here, we study stochastic evolutionary game dynamics in finite populations to systematically compare the evolutionary performance of reactive strategies, which only respond to the co-player''s previous move, and memory-one strategies, which take into account the own and the co-player''s previous move. In both cases, we compare deterministic strategy and stochastic strategy spaces. For reactive strategies and small costs, we find that stochasticity benefits cooperation, because it allows for generous-tit-for-tat. For memory one strategies and small costs, we find that stochasticity does not increase the propensity for cooperation, because the deterministic rule of win-stay, lose-shift works best. For memory one strategies and large costs, however, stochasticity can augment cooperation.' acknowledgement: C.H. acknowledges generous funding from the Schrödinger scholarship of the Austrian Science Fund (FWF), J3475. article_number: '25676' author: - first_name: Seung full_name: Baek, Seung last_name: Baek - first_name: Hyeongchai full_name: Jeong, Hyeongchai last_name: Jeong - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Baek S, Jeong H, Hilbe C, Nowak M. Comparing reactive and memory-one strategies of direct reciprocity. Scientific Reports. 2016;6. doi:10.1038/srep25676 apa: Baek, S., Jeong, H., Hilbe, C., & Nowak, M. (2016). Comparing reactive and memory-one strategies of direct reciprocity. Scientific Reports. Nature Publishing Group. https://doi.org/10.1038/srep25676 chicago: Baek, Seung, Hyeongchai Jeong, Christian Hilbe, and Martin Nowak. “Comparing Reactive and Memory-One Strategies of Direct Reciprocity.” Scientific Reports. Nature Publishing Group, 2016. https://doi.org/10.1038/srep25676. ieee: S. Baek, H. Jeong, C. Hilbe, and M. Nowak, “Comparing reactive and memory-one strategies of direct reciprocity,” Scientific Reports, vol. 6. Nature Publishing Group, 2016. ista: Baek S, Jeong H, Hilbe C, Nowak M. 2016. Comparing reactive and memory-one strategies of direct reciprocity. Scientific Reports. 6, 25676. mla: Baek, Seung, et al. “Comparing Reactive and Memory-One Strategies of Direct Reciprocity.” Scientific Reports, vol. 6, 25676, Nature Publishing Group, 2016, doi:10.1038/srep25676. short: S. Baek, H. Jeong, C. Hilbe, M. Nowak, Scientific Reports 6 (2016). date_created: 2018-12-11T11:51:56Z date_published: 2016-05-10T00:00:00Z date_updated: 2021-01-12T06:50:38Z day: '10' ddc: - '000' department: - _id: KrCh doi: 10.1038/srep25676 file: - access_level: open_access checksum: ee17c482370d2e1b3add393710d3c696 content_type: application/pdf creator: system date_created: 2018-12-12T10:18:08Z date_updated: 2020-07-14T12:44:53Z file_id: '5327' file_name: IST-2016-590-v1+1_srep25676.pdf file_size: 1349915 relation: main_file file_date_updated: 2020-07-14T12:44:53Z has_accepted_license: '1' intvolume: ' 6' language: - iso: eng month: '05' oa: 1 oa_version: Published Version publication: Scientific Reports publication_status: published publisher: Nature Publishing Group publist_id: '5784' pubrep_id: '590' quality_controlled: '1' scopus_import: 1 status: public title: Comparing reactive and memory-one strategies of direct reciprocity tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 6 year: '2016' ... --- _id: '1518' abstract: - lang: eng text: The inference of demographic history from genome data is hindered by a lack of efficient computational approaches. In particular, it has proved difficult to exploit the information contained in the distribution of genealogies across the genome. We have previously shown that the generating function (GF) of genealogies can be used to analytically compute likelihoods of demographic models from configurations of mutations in short sequence blocks (Lohse et al. 2011). Although the GF has a simple, recursive form, the size of such likelihood calculations explodes quickly with the number of individuals and applications of this framework have so far been mainly limited to small samples (pairs and triplets) for which the GF can be written by hand. Here we investigate several strategies for exploiting the inherent symmetries of the coalescent. In particular, we show that the GF of genealogies can be decomposed into a set of equivalence classes that allows likelihood calculations from nontrivial samples. Using this strategy, we automated blockwise likelihood calculations for a general set of demographic scenarios in Mathematica. These histories may involve population size changes, continuous migration, discrete divergence, and admixture between multiple populations. To give a concrete example, we calculate the likelihood for a model of isolation with migration (IM), assuming two diploid samples without phase and outgroup information. We demonstrate the new inference scheme with an analysis of two individual butterfly genomes from the sister species Heliconius melpomene rosina and H. cydno. acknowledgement: "We thank Lynsey Bunnefeld for discussions throughout the project and Joshua Schraiber and one anonymous reviewer\r\nfor constructive comments on an earlier version of this manuscript. This work was supported by funding from the\r\nUnited Kingdom Natural Environment Research Council (to K.L.) (NE/I020288/1) and a grant from the European\r\nResearch Council (250152) (to N.H.B.)." article_processing_charge: No article_type: original author: - first_name: Konrad full_name: Lohse, Konrad last_name: Lohse - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Simon full_name: Martin, Simon last_name: Martin - first_name: Nicholas H full_name: Barton, Nicholas H id: 4880FE40-F248-11E8-B48F-1D18A9856A87 last_name: Barton orcid: 0000-0002-8548-5240 citation: ama: Lohse K, Chmelik M, Martin S, Barton NH. Efficient strategies for calculating blockwise likelihoods under the coalescent. Genetics. 2016;202(2):775-786. doi:10.1534/genetics.115.183814 apa: Lohse, K., Chmelik, M., Martin, S., & Barton, N. H. (2016). Efficient strategies for calculating blockwise likelihoods under the coalescent. Genetics. Genetics Society of America. https://doi.org/10.1534/genetics.115.183814 chicago: Lohse, Konrad, Martin Chmelik, Simon Martin, and Nicholas H Barton. “Efficient Strategies for Calculating Blockwise Likelihoods under the Coalescent.” Genetics. Genetics Society of America, 2016. https://doi.org/10.1534/genetics.115.183814. ieee: K. Lohse, M. Chmelik, S. Martin, and N. H. Barton, “Efficient strategies for calculating blockwise likelihoods under the coalescent,” Genetics, vol. 202, no. 2. Genetics Society of America, pp. 775–786, 2016. ista: Lohse K, Chmelik M, Martin S, Barton NH. 2016. Efficient strategies for calculating blockwise likelihoods under the coalescent. Genetics. 202(2), 775–786. mla: Lohse, Konrad, et al. “Efficient Strategies for Calculating Blockwise Likelihoods under the Coalescent.” Genetics, vol. 202, no. 2, Genetics Society of America, 2016, pp. 775–86, doi:10.1534/genetics.115.183814. short: K. Lohse, M. Chmelik, S. Martin, N.H. Barton, Genetics 202 (2016) 775–786. date_created: 2018-12-11T11:52:29Z date_published: 2016-02-01T00:00:00Z date_updated: 2022-05-24T09:16:22Z day: '01' ddc: - '570' department: - _id: KrCh - _id: NiBa doi: 10.1534/genetics.115.183814 ec_funded: 1 external_id: pmid: - '26715666' file: - access_level: open_access checksum: 41c9b5d72e7fe4624dd22dfe622337d5 content_type: application/pdf creator: system date_created: 2018-12-12T10:16:51Z date_updated: 2020-07-14T12:45:00Z file_id: '5241' file_name: IST-2016-561-v1+1_Lohse_et_al_Genetics_2015.pdf file_size: 957466 relation: main_file file_date_updated: 2020-07-14T12:45:00Z has_accepted_license: '1' intvolume: ' 202' issue: '2' language: - iso: eng month: '02' oa: 1 oa_version: Preprint page: 775 - 786 pmid: 1 project: - _id: 25B07788-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '250152' name: Limits to selection in biology and in evolutionary computation publication: Genetics publication_status: published publisher: Genetics Society of America publist_id: '5658' pubrep_id: '561' quality_controlled: '1' scopus_import: '1' status: public title: Efficient strategies for calculating blockwise likelihoods under the coalescent type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 202 year: '2016' ... --- _id: '478' abstract: - lang: eng text: 'Magic: the Gathering is a game about magical combat for any number of players. Formally it is a zero-sum, imperfect information stochastic game that consists of a potentially unbounded number of steps. We consider the problem of deciding if a move is legal in a given single step of Magic. We show that the problem is (a) coNP-complete in general; and (b) in P if either of two small sets of cards are not used. Our lower bound holds even for single-player Magic games. The significant aspects of our results are as follows: First, in most real-life game problems, the task of deciding whether a given move is legal in a single step is trivial, and the computationally hard task is to find the best sequence of legal moves in the presence of multiple players. In contrast, quite uniquely our hardness result holds for single step and with only one-player. Second, we establish efficient algorithms for important special cases of Magic.' alternative_title: - Frontiers in Artificial Intelligence and Applications author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 citation: ama: 'Chatterjee K, Ibsen-Jensen R. The complexity of deciding legality of a single step of magic: The gathering. In: Vol 285. IOS Press; 2016:1432-1439. doi:10.3233/978-1-61499-672-9-1432' apa: 'Chatterjee, K., & Ibsen-Jensen, R. (2016). The complexity of deciding legality of a single step of magic: The gathering (Vol. 285, pp. 1432–1439). Presented at the ECAI: European Conference on Artificial Intelligence, The Hague, Netherlands: IOS Press. https://doi.org/10.3233/978-1-61499-672-9-1432' chicago: 'Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “The Complexity of Deciding Legality of a Single Step of Magic: The Gathering,” 285:1432–39. IOS Press, 2016. https://doi.org/10.3233/978-1-61499-672-9-1432.' ieee: 'K. Chatterjee and R. Ibsen-Jensen, “The complexity of deciding legality of a single step of magic: The gathering,” presented at the ECAI: European Conference on Artificial Intelligence, The Hague, Netherlands, 2016, vol. 285, pp. 1432–1439.' ista: 'Chatterjee K, Ibsen-Jensen R. 2016. The complexity of deciding legality of a single step of magic: The gathering. ECAI: European Conference on Artificial Intelligence, Frontiers in Artificial Intelligence and Applications, vol. 285, 1432–1439.' mla: 'Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. The Complexity of Deciding Legality of a Single Step of Magic: The Gathering. Vol. 285, IOS Press, 2016, pp. 1432–39, doi:10.3233/978-1-61499-672-9-1432.' short: K. Chatterjee, R. Ibsen-Jensen, in:, IOS Press, 2016, pp. 1432–1439. conference: end_date: 2016-09-02 location: The Hague, Netherlands name: 'ECAI: European Conference on Artificial Intelligence' start_date: 2016-08-29 date_created: 2018-12-11T11:46:41Z date_published: 2016-01-01T00:00:00Z date_updated: 2021-01-12T08:00:54Z day: '01' ddc: - '004' department: - _id: KrCh doi: 10.3233/978-1-61499-672-9-1432 file: - access_level: open_access checksum: 848043c812ace05e459579c923f3d3cf content_type: application/pdf creator: system date_created: 2018-12-12T10:07:59Z date_updated: 2020-07-14T12:46:35Z file_id: '4658' file_name: IST-2018-950-v1+1_2016_Chatterjee_The_complexity.pdf file_size: 2116225 relation: main_file file_date_updated: 2020-07-14T12:46:35Z has_accepted_license: '1' intvolume: ' 285' language: - iso: eng license: https://creativecommons.org/licenses/by-nc/4.0/ month: '01' oa: 1 oa_version: Published Version page: 1432 - 1439 publication_status: published publisher: IOS Press publist_id: '7342' pubrep_id: '950' quality_controlled: '1' scopus_import: 1 status: public title: 'The complexity of deciding legality of a single step of magic: The gathering' tmp: image: /images/cc_by_nc.png legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) short: CC BY-NC (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 285 year: '2016' ... --- _id: '480' abstract: - lang: eng text: Graph games provide the foundation for modeling and synthesizing reactive processes. In the synthesis of stochastic reactive processes, the traditional model is perfect-information stochastic games, where some transitions of the game graph are controlled by two adversarial players, and the other transitions are executed probabilistically. We consider such games where the objective is the conjunction of several quantitative objectives (specified as mean-payoff conditions), which we refer to as generalized mean-payoff objectives. The basic decision problem asks for the existence of a finite-memory strategy for a player that ensures the generalized mean-payoff objective be satisfied with a desired probability against all strategies of the opponent. A special case of the decision problem is the almost-sure problem where the desired probability is 1. Previous results presented a semi-decision procedure for -approximations of the almost-sure problem. In this work, we show that both the almost-sure problem as well as the general basic decision problem are coNP-complete, significantly improving the previous results. Moreover, we show that in the case of 1-player stochastic games, randomized memoryless strategies are sufficient and the problem can be solved in polynomial time. In contrast, in two-player stochastic games, we show that even with randomized strategies exponential memory is required in general, and present a matching exponential upper bound. We also study the basic decision problem with infinite-memory strategies and present computational complexity results for the problem. Our results are relevant in the synthesis of stochastic reactive systems with multiple quantitative requirements. alternative_title: - Proceedings Symposium on Logic in Computer Science author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Laurent full_name: Doyen, Laurent last_name: Doyen citation: ama: 'Chatterjee K, Doyen L. Perfect-information stochastic games with generalized mean-payoff objectives. In: Vol 05-08-July-2016. IEEE; 2016:247-256. doi:10.1145/2933575.2934513' apa: 'Chatterjee, K., & Doyen, L. (2016). Perfect-information stochastic games with generalized mean-payoff objectives (Vol. 05-08-July-2016, pp. 247–256). Presented at the LICS: Logic in Computer Science, New York, NY, USA: IEEE. https://doi.org/10.1145/2933575.2934513' chicago: Chatterjee, Krishnendu, and Laurent Doyen. “Perfect-Information Stochastic Games with Generalized Mean-Payoff Objectives,” 05-08-July-2016:247–56. IEEE, 2016. https://doi.org/10.1145/2933575.2934513. ieee: 'K. Chatterjee and L. Doyen, “Perfect-information stochastic games with generalized mean-payoff objectives,” presented at the LICS: Logic in Computer Science, New York, NY, USA, 2016, vol. 05-08-July-2016, pp. 247–256.' ista: 'Chatterjee K, Doyen L. 2016. Perfect-information stochastic games with generalized mean-payoff objectives. LICS: Logic in Computer Science, Proceedings Symposium on Logic in Computer Science, vol. 05-08-July-2016, 247–256.' mla: Chatterjee, Krishnendu, and Laurent Doyen. Perfect-Information Stochastic Games with Generalized Mean-Payoff Objectives. Vol. 05-08-July-2016, IEEE, 2016, pp. 247–56, doi:10.1145/2933575.2934513. short: K. Chatterjee, L. Doyen, in:, IEEE, 2016, pp. 247–256. conference: end_date: 2016-07-08 location: New York, NY, USA name: 'LICS: Logic in Computer Science' start_date: 2016-07-05 date_created: 2018-12-11T11:46:42Z date_published: 2016-07-05T00:00:00Z date_updated: 2021-01-12T08:00:56Z day: '05' department: - _id: KrCh doi: 10.1145/2933575.2934513 ec_funded: 1 language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1604.06376 month: '07' oa: 1 oa_version: Preprint page: 247 - 256 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication_status: published publisher: IEEE publist_id: '7340' quality_controlled: '1' scopus_import: 1 status: public title: Perfect-information stochastic games with generalized mean-payoff objectives type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 05-08-July-2016 year: '2016' ... --- _id: '1477' abstract: - lang: eng text: We consider partially observable Markov decision processes (POMDPs) with ω-regular conditions specified as parity objectives. The class of ω-regular languages provides a robust specification language to express properties in verification, and parity objectives are canonical forms to express them. The qualitative analysis problem given a POMDP and a parity objective asks whether there is a strategy to ensure that the objective is satisfied with probability 1 (resp. positive probability). While the qualitative analysis problems are undecidable even for special cases of parity objectives, we establish decidability (with optimal complexity) for POMDPs with all parity objectives under finite-memory strategies. We establish optimal (exponential) memory bounds and EXPTIME-completeness of the qualitative analysis problems under finite-memory strategies for POMDPs with parity objectives. We also present a practical approach, where we design heuristics to deal with the exponential complexity, and have applied our implementation on a number of POMDP examples. author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Mathieu full_name: Tracol, Mathieu id: 3F54FA38-F248-11E8-B48F-1D18A9856A87 last_name: Tracol citation: ama: Chatterjee K, Chmelik M, Tracol M. What is decidable about partially observable Markov decision processes with ω-regular objectives. Journal of Computer and System Sciences. 2016;82(5):878-911. doi:10.1016/j.jcss.2016.02.009 apa: Chatterjee, K., Chmelik, M., & Tracol, M. (2016). What is decidable about partially observable Markov decision processes with ω-regular objectives. Journal of Computer and System Sciences. Elsevier. https://doi.org/10.1016/j.jcss.2016.02.009 chicago: Chatterjee, Krishnendu, Martin Chmelik, and Mathieu Tracol. “What Is Decidable about Partially Observable Markov Decision Processes with ω-Regular Objectives.” Journal of Computer and System Sciences. Elsevier, 2016. https://doi.org/10.1016/j.jcss.2016.02.009. ieee: K. Chatterjee, M. Chmelik, and M. Tracol, “What is decidable about partially observable Markov decision processes with ω-regular objectives,” Journal of Computer and System Sciences, vol. 82, no. 5. Elsevier, pp. 878–911, 2016. ista: Chatterjee K, Chmelik M, Tracol M. 2016. What is decidable about partially observable Markov decision processes with ω-regular objectives. Journal of Computer and System Sciences. 82(5), 878–911. mla: Chatterjee, Krishnendu, et al. “What Is Decidable about Partially Observable Markov Decision Processes with ω-Regular Objectives.” Journal of Computer and System Sciences, vol. 82, no. 5, Elsevier, 2016, pp. 878–911, doi:10.1016/j.jcss.2016.02.009. short: K. Chatterjee, M. Chmelik, M. Tracol, Journal of Computer and System Sciences 82 (2016) 878–911. date_created: 2018-12-11T11:52:15Z date_published: 2016-08-01T00:00:00Z date_updated: 2023-02-23T12:24:38Z day: '01' department: - _id: KrCh doi: 10.1016/j.jcss.2016.02.009 ec_funded: 1 external_id: arxiv: - '1309.2802' intvolume: ' 82' issue: '5' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1309.2802 month: '08' oa: 1 oa_version: Preprint page: 878 - 911 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Journal of Computer and System Sciences publication_status: published publisher: Elsevier publist_id: '5718' quality_controlled: '1' related_material: record: - id: '2295' relation: earlier_version status: public - id: '5400' relation: earlier_version status: public scopus_import: 1 status: public title: What is decidable about partially observable Markov decision processes with ω-regular objectives type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 82 year: '2016' ... --- _id: '1529' abstract: - lang: eng text: 'We consider partially observable Markov decision processes (POMDPs) with a set of target states and an integer cost associated with every transition. The optimization objective we study asks to minimize the expected total cost of reaching a state in the target set, while ensuring that the target set is reached almost surely (with probability 1). We show that for integer costs approximating the optimal cost is undecidable. For positive costs, our results are as follows: (i) we establish matching lower and upper bounds for the optimal cost, both double exponential in the POMDP state space size; (ii) we show that the problem of approximating the optimal cost is decidable and present approximation algorithms developing on the existing algorithms for POMDPs with finite-horizon objectives. While the worst-case running time of our algorithm is double exponential, we also present efficient stopping criteria for the algorithm and show experimentally that it performs well in many examples of interest.' acknowledgement: 'We thank Blai Bonet for helping us with RTDP-Bel. The research was partly supported by Austrian Science Fund (FWF) Grant No P23499-N23, FWF NFN Grant No S11407-N23 (RiSE), ERC Start grant (279307: Graph Games), and Microsoft faculty fellows award.' article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Raghav full_name: Gupta, Raghav last_name: Gupta - first_name: Ayush full_name: Kanodia, Ayush last_name: Kanodia citation: ama: Chatterjee K, Chmelik M, Gupta R, Kanodia A. Optimal cost almost-sure reachability in POMDPs. Artificial Intelligence. 2016;234:26-48. doi:10.1016/j.artint.2016.01.007 apa: Chatterjee, K., Chmelik, M., Gupta, R., & Kanodia, A. (2016). Optimal cost almost-sure reachability in POMDPs. Artificial Intelligence. Elsevier. https://doi.org/10.1016/j.artint.2016.01.007 chicago: Chatterjee, Krishnendu, Martin Chmelik, Raghav Gupta, and Ayush Kanodia. “Optimal Cost Almost-Sure Reachability in POMDPs.” Artificial Intelligence. Elsevier, 2016. https://doi.org/10.1016/j.artint.2016.01.007. ieee: K. Chatterjee, M. Chmelik, R. Gupta, and A. Kanodia, “Optimal cost almost-sure reachability in POMDPs,” Artificial Intelligence, vol. 234. Elsevier, pp. 26–48, 2016. ista: Chatterjee K, Chmelik M, Gupta R, Kanodia A. 2016. Optimal cost almost-sure reachability in POMDPs. Artificial Intelligence. 234, 26–48. mla: Chatterjee, Krishnendu, et al. “Optimal Cost Almost-Sure Reachability in POMDPs.” Artificial Intelligence, vol. 234, Elsevier, 2016, pp. 26–48, doi:10.1016/j.artint.2016.01.007. short: K. Chatterjee, M. Chmelik, R. Gupta, A. Kanodia, Artificial Intelligence 234 (2016) 26–48. date_created: 2018-12-11T11:52:33Z date_published: 2016-05-01T00:00:00Z date_updated: 2023-02-23T12:25:49Z day: '01' department: - _id: KrCh doi: 10.1016/j.artint.2016.01.007 ec_funded: 1 external_id: arxiv: - '1411.3880' intvolume: ' 234' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1411.3880 month: '05' oa: 1 oa_version: Preprint page: 26 - 48 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Artificial Intelligence publication_status: published publisher: Elsevier publist_id: '5642' quality_controlled: '1' related_material: record: - id: '1820' relation: earlier_version status: public - id: '5425' relation: earlier_version status: public scopus_import: 1 status: public title: Optimal cost almost-sure reachability in POMDPs type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 234 year: '2016' ... --- _id: '5445' abstract: - lang: eng text: 'We consider the quantitative analysis problem for interprocedural control-flow graphs (ICFGs). The input consists of an ICFG, a positive weight function that assigns every transition a positive integer-valued number, and a labelling of the transitions (events) as good, bad, and neutral events. The weight function assigns to each transition a numerical value that represents ameasure of how good or bad an event is. The quantitative analysis problem asks whether there is a run of the ICFG where the ratio of the sum of the numerical weights of good events versus the sum of weights of bad events in the long-run is at least a given threshold (or equivalently, to compute the maximal ratio among all valid paths in the ICFG). The quantitative analysis problem for ICFGs can be solved in polynomial time, and we present an efficient and practical algorithm for the problem. We show that several problems relevant for static program analysis, such as estimating the worst-case execution time of a program or the average energy consumption of a mobile application, can be modeled in our framework. We have implemented our algorithm as a tool in the Java Soot framework. We demonstrate the effectiveness of our approach with two case studies. First, we show that our framework provides a sound approach (no false positives) for the analysis of inefficiently-used containers. Second, we show that our approach can also be used for static profiling of programs which reasons about methods that are frequently invoked. Our experimental results show that our tool scales to relatively large benchmarks, and discovers relevant and useful information that can be used to optimize performance of the programs. ' alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Yaron full_name: Velner, Yaron last_name: Velner citation: ama: Chatterjee K, Pavlogiannis A, Velner Y. Quantitative Interprocedural Analysis. IST Austria; 2016. doi:10.15479/AT:IST-2016-523-v1-1 apa: Chatterjee, K., Pavlogiannis, A., & Velner, Y. (2016). Quantitative interprocedural analysis. IST Austria. https://doi.org/10.15479/AT:IST-2016-523-v1-1 chicago: Chatterjee, Krishnendu, Andreas Pavlogiannis, and Yaron Velner. Quantitative Interprocedural Analysis. IST Austria, 2016. https://doi.org/10.15479/AT:IST-2016-523-v1-1. ieee: K. Chatterjee, A. Pavlogiannis, and Y. Velner, Quantitative interprocedural analysis. IST Austria, 2016. ista: Chatterjee K, Pavlogiannis A, Velner Y. 2016. Quantitative interprocedural analysis, IST Austria, 33p. mla: Chatterjee, Krishnendu, et al. Quantitative Interprocedural Analysis. IST Austria, 2016, doi:10.15479/AT:IST-2016-523-v1-1. short: K. Chatterjee, A. Pavlogiannis, Y. Velner, Quantitative Interprocedural Analysis, IST Austria, 2016. date_created: 2018-12-12T11:39:22Z date_published: 2016-03-31T00:00:00Z date_updated: 2023-02-23T10:06:22Z day: '31' ddc: - '005' department: - _id: KrCh doi: 10.15479/AT:IST-2016-523-v1-1 file: - access_level: open_access checksum: cef516fa091925b5868813e355268fb4 content_type: application/pdf creator: system date_created: 2018-12-12T11:53:52Z date_updated: 2020-07-14T12:46:58Z file_id: '5513' file_name: IST-2016-523-v1+1_main.pdf file_size: 1012204 relation: main_file file_date_updated: 2020-07-14T12:46:58Z has_accepted_license: '1' language: - iso: eng month: '03' oa: 1 oa_version: Published Version page: '33' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '523' related_material: record: - id: '1604' relation: later_version status: public status: public title: Quantitative interprocedural analysis type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '1166' abstract: - lang: eng text: POMDPs are standard models for probabilistic planning problems, where an agent interacts with an uncertain environment. We study the problem of almost-sure reachability, where given a set of target states, the question is to decide whether there is a policy to ensure that the target set is reached with probability 1 (almost-surely). While in general the problem is EXPTIMEcomplete, in many practical cases policies with a small amount of memory suffice. Moreover, the existing solution to the problem is explicit, which first requires to construct explicitly an exponential reduction to a belief-support MDP. In this work, we first study the existence of observation-stationary strategies, which is NP-complete, and then small-memory strategies. We present a symbolic algorithm by an efficient encoding to SAT and using a SAT solver for the problem. We report experimental results demonstrating the scalability of our symbolic (SAT-based) approach. © 2016, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved. author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Jessica full_name: Davies, Jessica id: 378E0060-F248-11E8-B48F-1D18A9856A87 last_name: Davies citation: ama: 'Chatterjee K, Chmelik M, Davies J. A symbolic SAT based algorithm for almost sure reachability with small strategies in pomdps. In: Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence. Vol 2016. AAAI Press; 2016:3225-3232.' apa: 'Chatterjee, K., Chmelik, M., & Davies, J. (2016). A symbolic SAT based algorithm for almost sure reachability with small strategies in pomdps. In Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence (Vol. 2016, pp. 3225–3232). Phoenix, AZ, USA: AAAI Press.' chicago: Chatterjee, Krishnendu, Martin Chmelik, and Jessica Davies. “A Symbolic SAT Based Algorithm for Almost Sure Reachability with Small Strategies in Pomdps.” In Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence, 2016:3225–32. AAAI Press, 2016. ieee: K. Chatterjee, M. Chmelik, and J. Davies, “A symbolic SAT based algorithm for almost sure reachability with small strategies in pomdps,” in Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence, Phoenix, AZ, USA, 2016, vol. 2016, pp. 3225–3232. ista: 'Chatterjee K, Chmelik M, Davies J. 2016. A symbolic SAT based algorithm for almost sure reachability with small strategies in pomdps. Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence. AAAI: Conference on Artificial Intelligence vol. 2016, 3225–3232.' mla: Chatterjee, Krishnendu, et al. “A Symbolic SAT Based Algorithm for Almost Sure Reachability with Small Strategies in Pomdps.” Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence, vol. 2016, AAAI Press, 2016, pp. 3225–32. short: K. Chatterjee, M. Chmelik, J. Davies, in:, Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence, AAAI Press, 2016, pp. 3225–3232. conference: end_date: 2016-02-17 location: Phoenix, AZ, USA name: 'AAAI: Conference on Artificial Intelligence' start_date: 2016-02-12 date_created: 2018-12-11T11:50:30Z date_published: 2016-12-02T00:00:00Z date_updated: 2023-02-23T12:26:41Z day: '02' department: - _id: KrCh - _id: ToHe ec_funded: 1 intvolume: ' 2016' language: - iso: eng month: '12' oa_version: None page: 3225 - 3232 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence publication_status: published publisher: AAAI Press publist_id: '6191' quality_controlled: '1' related_material: link: - relation: table_of_contents url: https://dl.acm.org/citation.cfm?id=3016355 record: - id: '5443' relation: earlier_version status: public status: public title: A symbolic SAT based algorithm for almost sure reachability with small strategies in pomdps type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 2016 year: '2016' ... --- _id: '5449' abstract: - lang: eng text: "The fixation probability is the probability that a new mutant introduced in a homogeneous population eventually takes over the entire population.\r\nThe fixation probability is a fundamental quantity of natural selection, and known to depend on the population structure.\r\nAmplifiers of natural selection are population structures which increase the fixation probability of advantageous mutants, as compared to the baseline case of well-mixed populations. In this work we focus on symmetric population structures represented as undirected graphs. In the regime of undirected graphs, the strongest amplifier known has been the Star graph, and the existence of undirected graphs with stronger amplification properties has remained open for over a decade.\r\nIn this work we present the Comet and Comet-swarm families of undirected graphs. We show that for a range of fitness values of the mutants, the Comet and Comet-swarm graphs have fixation probability strictly larger than the fixation probability of the Star graph, for fixed population size and at the limit of large populations, respectively." alternative_title: - IST Austria Technical Report author: - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Josef full_name: Tkadlec, Josef id: 3F24CCC8-F248-11E8-B48F-1D18A9856A87 last_name: Tkadlec orcid: 0000-0002-1097-9684 - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: 'Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. Amplification on Undirected Population Structures: Comets Beat Stars. IST Austria; 2016. doi:10.15479/AT:IST-2016-648-v1-1' apa: 'Pavlogiannis, A., Tkadlec, J., Chatterjee, K., & Nowak, M. (2016). Amplification on undirected population structures: Comets beat stars. IST Austria. https://doi.org/10.15479/AT:IST-2016-648-v1-1' chicago: 'Pavlogiannis, Andreas, Josef Tkadlec, Krishnendu Chatterjee, and Martin Nowak. Amplification on Undirected Population Structures: Comets Beat Stars. IST Austria, 2016. https://doi.org/10.15479/AT:IST-2016-648-v1-1.' ieee: 'A. Pavlogiannis, J. Tkadlec, K. Chatterjee, and M. Nowak, Amplification on undirected population structures: Comets beat stars. IST Austria, 2016.' ista: 'Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. 2016. Amplification on undirected population structures: Comets beat stars, IST Austria, 22p.' mla: 'Pavlogiannis, Andreas, et al. Amplification on Undirected Population Structures: Comets Beat Stars. IST Austria, 2016, doi:10.15479/AT:IST-2016-648-v1-1.' short: 'A. Pavlogiannis, J. Tkadlec, K. Chatterjee, M. Nowak, Amplification on Undirected Population Structures: Comets Beat Stars, IST Austria, 2016.' date_created: 2018-12-12T11:39:24Z date_published: 2016-11-09T00:00:00Z date_updated: 2023-02-23T12:22:21Z day: '09' ddc: - '519' department: - _id: KrCh doi: 10.15479/AT:IST-2016-648-v1-1 file: - access_level: open_access checksum: 8345a8c1e7d7f0cd92516d182b7fc59e content_type: application/pdf creator: system date_created: 2018-12-12T11:54:07Z date_updated: 2020-07-14T12:46:58Z file_id: '5529' file_name: IST-2016-648-v1+1_tr.pdf file_size: 1264221 relation: main_file file_date_updated: 2020-07-14T12:46:58Z has_accepted_license: '1' language: - iso: eng month: '11' oa: 1 oa_version: Updated Version page: '22' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '648' related_material: record: - id: '512' relation: later_version status: public status: public title: 'Amplification on undirected population structures: Comets beat stars' type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '5453' alternative_title: - IST Austria Technical Report author: - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Josef full_name: Tkadlec, Josef id: 3F24CCC8-F248-11E8-B48F-1D18A9856A87 last_name: Tkadlec orcid: 0000-0002-1097-9684 - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. Arbitrarily Strong Amplifiers of Natural Selection. IST Austria; 2016. doi:10.15479/AT:IST-2017-749-v3-1 apa: Pavlogiannis, A., Tkadlec, J., Chatterjee, K., & Nowak, M. (2016). Arbitrarily strong amplifiers of natural selection. IST Austria. https://doi.org/10.15479/AT:IST-2017-749-v3-1 chicago: Pavlogiannis, Andreas, Josef Tkadlec, Krishnendu Chatterjee, and Martin Nowak. Arbitrarily Strong Amplifiers of Natural Selection. IST Austria, 2016. https://doi.org/10.15479/AT:IST-2017-749-v3-1. ieee: A. Pavlogiannis, J. Tkadlec, K. Chatterjee, and M. Nowak, Arbitrarily strong amplifiers of natural selection. IST Austria, 2016. ista: Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. 2016. Arbitrarily strong amplifiers of natural selection, IST Austria, 34p. mla: Pavlogiannis, Andreas, et al. Arbitrarily Strong Amplifiers of Natural Selection. IST Austria, 2016, doi:10.15479/AT:IST-2017-749-v3-1. short: A. Pavlogiannis, J. Tkadlec, K. Chatterjee, M. Nowak, Arbitrarily Strong Amplifiers of Natural Selection, IST Austria, 2016. date_created: 2018-12-12T11:39:25Z date_published: 2016-12-30T00:00:00Z date_updated: 2023-02-23T12:27:07Z day: '30' ddc: - '000' department: - _id: KrCh doi: 10.15479/AT:IST-2017-749-v3-1 file: - access_level: open_access checksum: 83b0313dab3bff4bdb6ac38695026fda content_type: application/pdf creator: system date_created: 2018-12-12T11:53:13Z date_updated: 2020-07-14T12:46:59Z file_id: '5474' file_name: IST-2017-749-v3+1_main.pdf file_size: 1015647 relation: main_file file_date_updated: 2020-07-14T12:46:59Z has_accepted_license: '1' language: - iso: eng month: '12' oa: 1 oa_version: Published Version page: '34' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '755' related_material: record: - id: '5452' relation: earlier_version status: public status: public title: Arbitrarily strong amplifiers of natural selection type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '5451' alternative_title: - IST Austria Technical Report author: - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Josef full_name: Tkadlec, Josef id: 3F24CCC8-F248-11E8-B48F-1D18A9856A87 last_name: Tkadlec orcid: 0000-0002-1097-9684 - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. Strong Amplifiers of Natural Selection. IST Austria; 2016. doi:10.15479/AT:IST-2016-728-v1-1 apa: Pavlogiannis, A., Tkadlec, J., Chatterjee, K., & Nowak, M. (2016). Strong amplifiers of natural selection. IST Austria. https://doi.org/10.15479/AT:IST-2016-728-v1-1 chicago: Pavlogiannis, Andreas, Josef Tkadlec, Krishnendu Chatterjee, and Martin Nowak. Strong Amplifiers of Natural Selection. IST Austria, 2016. https://doi.org/10.15479/AT:IST-2016-728-v1-1. ieee: A. Pavlogiannis, J. Tkadlec, K. Chatterjee, and M. Nowak, Strong amplifiers of natural selection. IST Austria, 2016. ista: Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. 2016. Strong amplifiers of natural selection, IST Austria, 34p. mla: Pavlogiannis, Andreas, et al. Strong Amplifiers of Natural Selection. IST Austria, 2016, doi:10.15479/AT:IST-2016-728-v1-1. short: A. Pavlogiannis, J. Tkadlec, K. Chatterjee, M. Nowak, Strong Amplifiers of Natural Selection, IST Austria, 2016. date_created: 2018-12-12T11:39:24Z date_published: 2016-12-30T00:00:00Z date_updated: 2023-02-23T12:27:05Z day: '30' ddc: - '000' department: - _id: KrCh doi: 10.15479/AT:IST-2016-728-v1-1 file: - access_level: open_access checksum: 7b8bb17c322c0556acba6ac169fa71c1 content_type: application/pdf creator: system date_created: 2018-12-12T11:53:04Z date_updated: 2020-07-14T12:46:59Z file_id: '5465' file_name: IST-2016-728-v1+1_main.pdf file_size: 1014732 relation: main_file file_date_updated: 2020-07-14T12:46:59Z has_accepted_license: '1' language: - iso: eng month: '12' oa: 1 oa_version: Published Version page: '34' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '728' status: public title: Strong amplifiers of natural selection type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '9867' abstract: - lang: eng text: In the beginning of our experiment, subjects were asked to read a few pages on their computer screens that would explain the rules of the subsequent game. Here, we provide these instructions, translated from German. article_processing_charge: No author: - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X - first_name: Kristin full_name: Hagel, Kristin last_name: Hagel - first_name: Manfred full_name: Milinski, Manfred last_name: Milinski citation: ama: Hilbe C, Hagel K, Milinski M. Experimental game instructions. 2016. doi:10.1371/journal.pone.0163867.s008 apa: Hilbe, C., Hagel, K., & Milinski, M. (2016). Experimental game instructions. Public Library of Science. https://doi.org/10.1371/journal.pone.0163867.s008 chicago: Hilbe, Christian, Kristin Hagel, and Manfred Milinski. “Experimental Game Instructions.” Public Library of Science, 2016. https://doi.org/10.1371/journal.pone.0163867.s008. ieee: C. Hilbe, K. Hagel, and M. Milinski, “Experimental game instructions.” Public Library of Science, 2016. ista: Hilbe C, Hagel K, Milinski M. 2016. Experimental game instructions, Public Library of Science, 10.1371/journal.pone.0163867.s008. mla: Hilbe, Christian, et al. Experimental Game Instructions. Public Library of Science, 2016, doi:10.1371/journal.pone.0163867.s008. short: C. Hilbe, K. Hagel, M. Milinski, (2016). date_created: 2021-08-10T08:42:00Z date_updated: 2023-02-21T16:59:01Z day: '04' department: - _id: KrCh doi: 10.1371/journal.pone.0163867.s008 month: '10' oa_version: Published Version publisher: Public Library of Science related_material: record: - id: '1322' relation: used_in_publication status: public status: public title: Experimental game instructions type: research_data_reference user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf year: '2016' ... --- _id: '1322' abstract: - lang: eng text: Direct reciprocity is a major mechanism for the evolution of cooperation. Several classical studies have suggested that humans should quickly learn to adopt reciprocal strategies to establish mutual cooperation in repeated interactions. On the other hand, the recently discovered theory of ZD strategies has found that subjects who use extortionate strategies are able to exploit and subdue cooperators. Although such extortioners have been predicted to succeed in any population of adaptive opponents, theoretical follow-up studies questioned whether extortion can evolve in reality. However, most of these studies presumed that individuals have similar strategic possibilities and comparable outside options, whereas asymmetries are ubiquitous in real world applications. Here we show with a model and an economic experiment that extortionate strategies readily emerge once subjects differ in their strategic power. Our experiment combines a repeated social dilemma with asymmetric partner choice. In our main treatment there is one randomly chosen group member who is unilaterally allowed to exchange one of the other group members after every ten rounds of the social dilemma. We find that this asymmetric replacement opportunity generally promotes cooperation, but often the resulting payoff distribution reflects the underlying power structure. Almost half of the subjects in a better strategic position turn into extortioners, who quickly proceed to exploit their peers. By adapting their cooperation probabilities consistent with ZD theory, extortioners force their co-players to cooperate without being similarly cooperative themselves. Comparison to non-extortionate players under the same conditions indicates a substantial net gain to extortion. Our results thus highlight how power asymmetries can endanger mutually beneficial interactions, and transform them into exploitative relationships. In particular, our results indicate that the extortionate strategies predicted from ZD theory could play a more prominent role in our daily interactions than previously thought. acknowledgement: 'CH was funded by the Schrödinger program of the Austrian Science Fund (FWF) J3475. ' article_number: e0163867 author: - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X - first_name: Kristin full_name: Hagel, Kristin last_name: Hagel - first_name: Manfred full_name: Milinski, Manfred last_name: Milinski citation: ama: Hilbe C, Hagel K, Milinski M. Asymmetric power boosts extortion in an economic experiment. PLoS One. 2016;11(10). doi:10.1371/journal.pone.0163867 apa: Hilbe, C., Hagel, K., & Milinski, M. (2016). Asymmetric power boosts extortion in an economic experiment. PLoS One. Public Library of Science. https://doi.org/10.1371/journal.pone.0163867 chicago: Hilbe, Christian, Kristin Hagel, and Manfred Milinski. “Asymmetric Power Boosts Extortion in an Economic Experiment.” PLoS One. Public Library of Science, 2016. https://doi.org/10.1371/journal.pone.0163867. ieee: C. Hilbe, K. Hagel, and M. Milinski, “Asymmetric power boosts extortion in an economic experiment,” PLoS One, vol. 11, no. 10. Public Library of Science, 2016. ista: Hilbe C, Hagel K, Milinski M. 2016. Asymmetric power boosts extortion in an economic experiment. PLoS One. 11(10), e0163867. mla: Hilbe, Christian, et al. “Asymmetric Power Boosts Extortion in an Economic Experiment.” PLoS One, vol. 11, no. 10, e0163867, Public Library of Science, 2016, doi:10.1371/journal.pone.0163867. short: C. Hilbe, K. Hagel, M. Milinski, PLoS One 11 (2016). date_created: 2018-12-11T11:51:22Z date_published: 2016-10-04T00:00:00Z date_updated: 2023-02-23T14:11:27Z day: '04' ddc: - '004' - '006' department: - _id: KrCh doi: 10.1371/journal.pone.0163867 file: - access_level: open_access checksum: 6b33e394003dfe8b4ca6be1858aaa8e3 content_type: application/pdf creator: system date_created: 2018-12-12T10:08:08Z date_updated: 2020-07-14T12:44:44Z file_id: '4668' file_name: IST-2016-716-v1+1_journal.pone.0163867.PDF file_size: 2077905 relation: main_file file_date_updated: 2020-07-14T12:44:44Z has_accepted_license: '1' intvolume: ' 11' issue: '10' language: - iso: eng month: '10' oa: 1 oa_version: Published Version publication: PLoS One publication_status: published publisher: Public Library of Science publist_id: '5948' pubrep_id: '716' quality_controlled: '1' related_material: record: - id: '9867' relation: research_data status: public - id: '9868' relation: research_data status: public scopus_import: 1 status: public title: Asymmetric power boosts extortion in an economic experiment tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 11 year: '2016' ... --- _id: '9868' abstract: - lang: eng text: The raw data file containing the experimental decisions of all our study subjects. article_processing_charge: No author: - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X - first_name: Kristin full_name: Hagel, Kristin last_name: Hagel - first_name: Manfred full_name: Milinski, Manfred last_name: Milinski citation: ama: Hilbe C, Hagel K, Milinski M. Experimental data. 2016. doi:10.1371/journal.pone.0163867.s009 apa: Hilbe, C., Hagel, K., & Milinski, M. (2016). Experimental data. Public Library of Science. https://doi.org/10.1371/journal.pone.0163867.s009 chicago: Hilbe, Christian, Kristin Hagel, and Manfred Milinski. “Experimental Data.” Public Library of Science, 2016. https://doi.org/10.1371/journal.pone.0163867.s009. ieee: C. Hilbe, K. Hagel, and M. Milinski, “Experimental data.” Public Library of Science, 2016. ista: Hilbe C, Hagel K, Milinski M. 2016. Experimental data, Public Library of Science, 10.1371/journal.pone.0163867.s009. mla: Hilbe, Christian, et al. Experimental Data. Public Library of Science, 2016, doi:10.1371/journal.pone.0163867.s009. short: C. Hilbe, K. Hagel, M. Milinski, (2016). date_created: 2021-08-10T08:45:00Z date_published: 2016-10-04T00:00:00Z date_updated: 2023-02-21T16:59:01Z day: '04' department: - _id: KrCh doi: 10.1371/journal.pone.0163867.s009 month: '10' oa_version: Published Version publisher: Public Library of Science related_material: record: - id: '1322' relation: used_in_publication status: public status: public title: Experimental data type: research_data_reference user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf year: '2016' ... --- _id: '1397' abstract: - lang: eng text: 'We study partially observable Markov decision processes (POMDPs) with objectives used in verification and artificial intelligence. The qualitative analysis problem given a POMDP and an objective asks whether there is a strategy (policy) to ensure that the objective is satisfied almost surely (with probability 1), resp. with positive probability (with probability greater than 0). For POMDPs with limit-average payoff, where a reward value in the interval [0,1] is associated to every transition, and the payoff of an infinite path is the long-run average of the rewards, we consider two types of path constraints: (i) a quantitative limit-average constraint defines the set of paths where the payoff is at least a given threshold L1 = 1. Our main results for qualitative limit-average constraint under almost-sure winning are as follows: (i) the problem of deciding the existence of a finite-memory controller is EXPTIME-complete; and (ii) the problem of deciding the existence of an infinite-memory controller is undecidable. For quantitative limit-average constraints we show that the problem of deciding the existence of a finite-memory controller is undecidable. We present a prototype implementation of our EXPTIME algorithm. For POMDPs with w-regular conditions specified as parity objectives, while the qualitative analysis problems are known to be undecidable even for very special case of parity objectives, we establish decidability (with optimal complexity) of the qualitative analysis problems for POMDPs with parity objectives under finite-memory strategies. We establish optimal (exponential) memory bounds and EXPTIME-completeness of the qualitative analysis problems under finite-memory strategies for POMDPs with parity objectives. Based on our theoretical algorithms we also present a practical approach, where we design heuristics to deal with the exponential complexity, and have applied our implementation on a number of well-known POMDP examples for robotics applications. For POMDPs with a set of target states and an integer cost associated with every transition, we study the optimization objective that asks to minimize the expected total cost of reaching a state in the target set, while ensuring that the target set is reached almost surely. We show that for general integer costs approximating the optimal cost is undecidable. For positive costs, our results are as follows: (i) we establish matching lower and upper bounds for the optimal cost, both double and exponential in the POMDP state space size; (ii) we show that the problem of approximating the optimal cost is decidable and present approximation algorithms that extend existing algorithms for POMDPs with finite-horizon objectives. We show experimentally that it performs well in many examples of interest. We study more deeply the problem of almost-sure reachability, where given a set of target states, the question is to decide whether there is a strategy to ensure that the target set is reached almost surely. While in general the problem EXPTIME-complete, in many practical cases strategies with a small amount of memory suffice. Moreover, the existing solution to the problem is explicit, which first requires to construct explicitly an exponential reduction to a belief-support MDP. We first study the existence of observation-stationary strategies, which is NP-complete, and then small-memory strategies. We present a symbolic algorithm by an efficient encoding to SAT and using a SAT solver for the problem. We report experimental results demonstrating the scalability of our symbolic (SAT-based) approach. Decentralized POMDPs (DEC-POMDPs) extend POMDPs to a multi-agent setting, where several agents operate in an uncertain environment independently to achieve a joint objective. In this work we consider Goal DEC-POMDPs, where given a set of target states, the objective is to ensure that the target set is reached with minimal cost. We consider the indefinite-horizon (infinite-horizon with either discounted-sum, or undiscounted-sum, where absorbing goal states have zero-cost) problem. We present a new and novel method to solve the problem that extends methods for finite-horizon DEC-POMDPs and the real-time dynamic programming approach for POMDPs. We present experimental results on several examples, and show that our approach presents promising results. In the end we present a short summary of a few other results related to verification of MDPs and POMDPs.' alternative_title: - ISTA Thesis article_processing_charge: No author: - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik citation: ama: Chmelik M. Algorithms for partially observable markov decision processes. 2016. apa: Chmelik, M. (2016). Algorithms for partially observable markov decision processes. Institute of Science and Technology Austria. chicago: Chmelik, Martin. “Algorithms for Partially Observable Markov Decision Processes.” Institute of Science and Technology Austria, 2016. ieee: M. Chmelik, “Algorithms for partially observable markov decision processes,” Institute of Science and Technology Austria, 2016. ista: Chmelik M. 2016. Algorithms for partially observable markov decision processes. Institute of Science and Technology Austria. mla: Chmelik, Martin. Algorithms for Partially Observable Markov Decision Processes. Institute of Science and Technology Austria, 2016. short: M. Chmelik, Algorithms for Partially Observable Markov Decision Processes, Institute of Science and Technology Austria, 2016. date_created: 2018-12-11T11:51:47Z date_published: 2016-02-01T00:00:00Z date_updated: 2023-09-07T11:54:58Z day: '01' degree_awarded: PhD department: - _id: KrCh language: - iso: eng month: '02' oa_version: None page: '232' publication_identifier: issn: - 2663-337X publication_status: published publisher: Institute of Science and Technology Austria publist_id: '5810' status: public supervisor: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X title: Algorithms for partially observable markov decision processes type: dissertation user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 year: '2016' ... --- _id: '1093' abstract: - lang: eng text: 'We introduce a general class of distances (metrics) between Markov chains, which are based on linear behaviour. This class encompasses distances given topologically (such as the total variation distance or trace distance) as well as by temporal logics or automata. We investigate which of the distances can be approximated by observing the systems, i.e. by black-box testing or simulation, and we provide both negative and positive results. ' acknowledgement: "This research was funded in part by the European Research Council (ERC) under grant agreement 267989\r\n(QUAREM), the Austrian Science Fund (FWF) under grants project S11402-N23 (RiSE and SHiNE)\r\nand Z211-N23 (Wittgenstein Award), by the Czech Science Foundation Grant No. P202/12/G061, and\r\nby the SNSF Advanced Postdoc. Mobility Fellowship – grant number P300P2_161067." alternative_title: - LIPIcs article_number: '20' author: - first_name: Przemyslaw full_name: Daca, Przemyslaw id: 49351290-F248-11E8-B48F-1D18A9856A87 last_name: Daca - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Tatjana full_name: Petrov, Tatjana id: 3D5811FC-F248-11E8-B48F-1D18A9856A87 last_name: Petrov orcid: 0000-0002-9041-0905 citation: ama: 'Daca P, Henzinger TA, Kretinsky J, Petrov T. Linear distances between Markov chains. In: Vol 59. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2016. doi:10.4230/LIPIcs.CONCUR.2016.20' apa: 'Daca, P., Henzinger, T. A., Kretinsky, J., & Petrov, T. (2016). Linear distances between Markov chains (Vol. 59). Presented at the CONCUR: Concurrency Theory, Quebec City; Canada: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2016.20' chicago: Daca, Przemyslaw, Thomas A Henzinger, Jan Kretinsky, and Tatjana Petrov. “Linear Distances between Markov Chains,” Vol. 59. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016. https://doi.org/10.4230/LIPIcs.CONCUR.2016.20. ieee: 'P. Daca, T. A. Henzinger, J. Kretinsky, and T. Petrov, “Linear distances between Markov chains,” presented at the CONCUR: Concurrency Theory, Quebec City; Canada, 2016, vol. 59.' ista: 'Daca P, Henzinger TA, Kretinsky J, Petrov T. 2016. Linear distances between Markov chains. CONCUR: Concurrency Theory, LIPIcs, vol. 59, 20.' mla: Daca, Przemyslaw, et al. Linear Distances between Markov Chains. Vol. 59, 20, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016, doi:10.4230/LIPIcs.CONCUR.2016.20. short: P. Daca, T.A. Henzinger, J. Kretinsky, T. Petrov, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016. conference: end_date: 2016-08-26 location: Quebec City; Canada name: 'CONCUR: Concurrency Theory' start_date: 2016-08-23 date_created: 2018-12-11T11:50:06Z date_published: 2016-08-01T00:00:00Z date_updated: 2023-09-07T11:58:33Z day: '01' ddc: - '004' department: - _id: ToHe - _id: KrCh - _id: CaGu doi: 10.4230/LIPIcs.CONCUR.2016.20 ec_funded: 1 file: - access_level: open_access content_type: application/pdf creator: system date_created: 2018-12-12T10:11:39Z date_updated: 2018-12-12T10:11:39Z file_id: '4895' file_name: IST-2017-794-v1+1_LIPIcs-CONCUR-2016-20.pdf file_size: 501827 relation: main_file file_date_updated: 2018-12-12T10:11:39Z has_accepted_license: '1' intvolume: ' 59' language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '6283' pubrep_id: '794' quality_controlled: '1' related_material: record: - id: '1155' relation: dissertation_contains status: public scopus_import: 1 status: public title: Linear distances between Markov chains tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 59 year: '2016' ... --- _id: '1071' abstract: - lang: eng text: 'We consider data-structures for answering reachability and distance queries on constant-treewidth graphs with n nodes, on the standard RAM computational model with wordsize W=Theta(log n). Our first contribution is a data-structure that after O(n) preprocessing time, allows (1) pair reachability queries in O(1) time; and (2) single-source reachability queries in O(n/log n) time. This is (asymptotically) optimal and is faster than DFS/BFS when answering more than a constant number of single-source queries. The data-structure uses at all times O(n) space. Our second contribution is a space-time tradeoff data-structure for distance queries. For any epsilon in [1/2,1], we provide a data-structure with polynomial preprocessing time that allows pair queries in O(n^{1-\epsilon} alpha(n)) time, where alpha is the inverse of the Ackermann function, and at all times uses O(n^epsilon) space. The input graph G is not considered in the space complexity. ' acknowledgement: 'The research was partly supported by Austrian Science Fund (FWF) Grant No P23499-N23, FWF NFN Grant No S11407-N23 (RiSE/SHiNE) and ERC Start grant (279307: Graph Games).' alternative_title: - LIPIcs article_number: '28' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: 'Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. Optimal reachability and a space time tradeoff for distance queries in constant treewidth graphs. In: Vol 57. Schloss Dagstuhl- Leibniz-Zentrum fur Informatik; 2016. doi:10.4230/LIPIcs.ESA.2016.28' apa: 'Chatterjee, K., Ibsen-Jensen, R., & Pavlogiannis, A. (2016). Optimal reachability and a space time tradeoff for distance queries in constant treewidth graphs (Vol. 57). Presented at the ESA: European Symposium on Algorithms, Aarhus, Denmark: Schloss Dagstuhl- Leibniz-Zentrum fur Informatik. https://doi.org/10.4230/LIPIcs.ESA.2016.28' chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis. “Optimal Reachability and a Space Time Tradeoff for Distance Queries in Constant Treewidth Graphs,” Vol. 57. Schloss Dagstuhl- Leibniz-Zentrum fur Informatik, 2016. https://doi.org/10.4230/LIPIcs.ESA.2016.28. ieee: 'K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, “Optimal reachability and a space time tradeoff for distance queries in constant treewidth graphs,” presented at the ESA: European Symposium on Algorithms, Aarhus, Denmark, 2016, vol. 57.' ista: 'Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2016. Optimal reachability and a space time tradeoff for distance queries in constant treewidth graphs. ESA: European Symposium on Algorithms, LIPIcs, vol. 57, 28.' mla: Chatterjee, Krishnendu, et al. Optimal Reachability and a Space Time Tradeoff for Distance Queries in Constant Treewidth Graphs. Vol. 57, 28, Schloss Dagstuhl- Leibniz-Zentrum fur Informatik, 2016, doi:10.4230/LIPIcs.ESA.2016.28. short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, in:, Schloss Dagstuhl- Leibniz-Zentrum fur Informatik, 2016. conference: end_date: 2016-08-24 location: Aarhus, Denmark name: 'ESA: European Symposium on Algorithms' start_date: 2016-08-22 date_created: 2018-12-11T11:49:59Z date_published: 2016-08-01T00:00:00Z date_updated: 2023-09-07T12:01:58Z day: '01' ddc: - '004' - '006' department: - _id: KrCh doi: 10.4230/LIPIcs.ESA.2016.28 ec_funded: 1 file: - access_level: open_access content_type: application/pdf creator: system date_created: 2018-12-12T10:14:31Z date_updated: 2018-12-12T10:14:31Z file_id: '5084' file_name: IST-2017-777-v1+1_LIPIcs-ESA-2016-28.pdf file_size: 579225 relation: main_file file_date_updated: 2018-12-12T10:14:31Z has_accepted_license: '1' intvolume: ' 57' language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_status: published publisher: Schloss Dagstuhl- Leibniz-Zentrum fur Informatik publist_id: '6312' pubrep_id: '777' quality_controlled: '1' related_material: record: - id: '821' relation: dissertation_contains status: public scopus_import: 1 status: public title: Optimal reachability and a space time tradeoff for distance queries in constant treewidth graphs tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 57 year: '2016' ... --- _id: '1438' abstract: - lang: eng text: 'In this paper, we consider termination of probabilistic programs with real-valued variables. The questions concerned are: (a) qualitative ones that ask (i) whether the program terminates with probability 1 (almost-sure termination) and (ii) whether the expected termination time is finite (finite termination); (b) quantitative ones that ask (i) to approximate the expected termination time (expectation problem) and (ii) to compute a bound B such that the probability to terminate after B steps decreases exponentially (concentration problem). To solve these questions, we utilize the notion of ranking supermartingales which is a powerful approach for proving termination of probabilistic programs. In detail, we focus on algorithmic synthesis of linear ranking-supermartingales over affine probabilistic programs (APP''s) with both angelic and demonic non-determinism. An important subclass of APP''s is LRAPP which is defined as the class of all APP''s over which a linear ranking-supermartingale exists. Our main contributions are as follows. Firstly, we show that the membership problem of LRAPP (i) can be decided in polynomial time for APP''s with at most demonic non-determinism, and (ii) is NP-hard and in PSPACE for APP''s with angelic non-determinism; moreover, the NP-hardness result holds already for APP''s without probability and demonic non-determinism. Secondly, we show that the concentration problem over LRAPP can be solved in the same complexity as for the membership problem of LRAPP. Finally, we show that the expectation problem over LRAPP can be solved in 2EXPTIME and is PSPACE-hard even for APP''s without probability and non-determinism (i.e., deterministic programs). Our experimental results demonstrate the effectiveness of our approach to answer the qualitative and quantitative questions over APP''s with at most demonic non-determinism.' acknowledgement: 'Supported by the Natural Science Foundation of China (NSFC) under Grant No. 61532019 ' alternative_title: - POPL author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Hongfei full_name: Fu, Hongfei id: 3AAD03D6-F248-11E8-B48F-1D18A9856A87 last_name: Fu - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny - first_name: Rouzbeh full_name: Hasheminezhad, Rouzbeh last_name: Hasheminezhad citation: ama: 'Chatterjee K, Fu H, Novotný P, Hasheminezhad R. Algorithmic analysis of qualitative and quantitative termination problems for affine probabilistic programs. In: Vol 20-22. ACM; 2016:327-342. doi:10.1145/2837614.2837639' apa: 'Chatterjee, K., Fu, H., Novotný, P., & Hasheminezhad, R. (2016). Algorithmic analysis of qualitative and quantitative termination problems for affine probabilistic programs (Vol. 20–22, pp. 327–342). Presented at the POPL: Principles of Programming Languages, St. Petersburg, FL, USA: ACM. https://doi.org/10.1145/2837614.2837639' chicago: Chatterjee, Krishnendu, Hongfei Fu, Petr Novotný, and Rouzbeh Hasheminezhad. “Algorithmic Analysis of Qualitative and Quantitative Termination Problems for Affine Probabilistic Programs,” 20–22:327–42. ACM, 2016. https://doi.org/10.1145/2837614.2837639. ieee: 'K. Chatterjee, H. Fu, P. Novotný, and R. Hasheminezhad, “Algorithmic analysis of qualitative and quantitative termination problems for affine probabilistic programs,” presented at the POPL: Principles of Programming Languages, St. Petersburg, FL, USA, 2016, vol. 20–22, pp. 327–342.' ista: 'Chatterjee K, Fu H, Novotný P, Hasheminezhad R. 2016. Algorithmic analysis of qualitative and quantitative termination problems for affine probabilistic programs. POPL: Principles of Programming Languages, POPL, vol. 20–22, 327–342.' mla: Chatterjee, Krishnendu, et al. Algorithmic Analysis of Qualitative and Quantitative Termination Problems for Affine Probabilistic Programs. Vol. 20–22, ACM, 2016, pp. 327–42, doi:10.1145/2837614.2837639. short: K. Chatterjee, H. Fu, P. Novotný, R. Hasheminezhad, in:, ACM, 2016, pp. 327–342. conference: end_date: 2016-01-22 location: St. Petersburg, FL, USA name: 'POPL: Principles of Programming Languages' start_date: 2016-01-20 date_created: 2018-12-11T11:52:01Z date_published: 2016-01-11T00:00:00Z date_updated: 2023-09-19T14:38:41Z day: '11' department: - _id: KrCh doi: 10.1145/2837614.2837639 ec_funded: 1 external_id: arxiv: - '1510.08517' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1510.08517 month: '01' oa: 1 oa_version: Preprint page: 327 - 342 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_status: published publisher: ACM publist_id: '5760' quality_controlled: '1' related_material: record: - id: '5993' relation: later_version status: public scopus_import: 1 status: public title: Algorithmic analysis of qualitative and quantitative termination problems for affine probabilistic programs type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 20-22 year: '2016' ... --- _id: '5452' alternative_title: - IST Austria Technical Report article_processing_charge: No author: - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Josef full_name: Tkadlec, Josef id: 3F24CCC8-F248-11E8-B48F-1D18A9856A87 last_name: Tkadlec orcid: 0000-0002-1097-9684 - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. Arbitrarily Strong Amplifiers of Natural Selection. IST Austria; 2016. doi:10.15479/AT:IST-2017-728-v2-1 apa: Pavlogiannis, A., Tkadlec, J., Chatterjee, K., & Nowak, M. (2016). Arbitrarily strong amplifiers of natural selection. IST Austria. https://doi.org/10.15479/AT:IST-2017-728-v2-1 chicago: Pavlogiannis, Andreas, Josef Tkadlec, Krishnendu Chatterjee, and Martin Nowak. Arbitrarily Strong Amplifiers of Natural Selection. IST Austria, 2016. https://doi.org/10.15479/AT:IST-2017-728-v2-1. ieee: A. Pavlogiannis, J. Tkadlec, K. Chatterjee, and M. Nowak, Arbitrarily strong amplifiers of natural selection. IST Austria, 2016. ista: Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. 2016. Arbitrarily strong amplifiers of natural selection, IST Austria, 32p. mla: Pavlogiannis, Andreas, et al. Arbitrarily Strong Amplifiers of Natural Selection. IST Austria, 2016, doi:10.15479/AT:IST-2017-728-v2-1. short: A. Pavlogiannis, J. Tkadlec, K. Chatterjee, M. Nowak, Arbitrarily Strong Amplifiers of Natural Selection, IST Austria, 2016. date_created: 2018-12-12T11:39:25Z date_published: 2016-12-30T00:00:00Z date_updated: 2024-02-21T13:48:42Z day: '30' ddc: - '000' department: - _id: KrCh doi: 10.15479/AT:IST-2017-728-v2-1 ec_funded: 1 file: - access_level: open_access checksum: 58e895f26c82f560c0f0989bf8b08599 content_type: application/pdf creator: system date_created: 2018-12-12T11:52:59Z date_updated: 2020-07-14T12:46:59Z file_id: '5460' file_name: IST-2017-728-v2+1_main.pdf file_size: 811558 relation: main_file file_date_updated: 2020-07-14T12:46:59Z has_accepted_license: '1' language: - iso: eng month: '12' oa: 1 oa_version: Published Version page: '32' project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '750' related_material: record: - id: '5453' relation: later_version status: public - id: '5559' relation: popular_science status: public status: public title: Arbitrarily strong amplifiers of natural selection type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '1437' abstract: - lang: eng text: We study algorithmic questions for concurrent systems where the transitions are labeled from a complete, closed semiring, and path properties are algebraic with semiring operations. The algebraic path properties can model dataflow analysis problems, the shortest path problem, and many other natural problems that arise in program analysis. We consider that each component of the concurrent system is a graph with constant treewidth, a property satisfied by the controlflow graphs of most programs. We allow for multiple possible queries, which arise naturally in demand driven dataflow analysis. The study of multiple queries allows us to consider the tradeoff between the resource usage of the one-time preprocessing and for each individual query. The traditional approach constructs the product graph of all components and applies the best-known graph algorithm on the product. In this approach, even the answer to a single query requires the transitive closure (i.e., the results of all possible queries), which provides no room for tradeoff between preprocessing and query time. Our main contributions are algorithms that significantly improve the worst-case running time of the traditional approach, and provide various tradeoffs depending on the number of queries. For example, in a concurrent system of two components, the traditional approach requires hexic time in the worst case for answering one query as well as computing the transitive closure, whereas we show that with one-time preprocessing in almost cubic time, each subsequent query can be answered in at most linear time, and even the transitive closure can be computed in almost quartic time. Furthermore, we establish conditional optimality results showing that the worst-case running time of our algorithms cannot be improved without achieving major breakthroughs in graph algorithms (i.e., improving the worst-case bound for the shortest path problem in general graphs). Preliminary experimental results show that our algorithms perform favorably on several benchmarks. alternative_title: - POPL author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Amir full_name: Goharshady, Amir id: 391365CE-F248-11E8-B48F-1D18A9856A87 last_name: Goharshady orcid: 0000-0003-1702-6584 - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: 'Chatterjee K, Goharshady AK, Ibsen-Jensen R, Pavlogiannis A. Algorithms for algebraic path properties in concurrent systems of constant treewidth components. In: Vol 20-22. ACM; 2016:733-747. doi:10.1145/2837614.2837624' apa: 'Chatterjee, K., Goharshady, A. K., Ibsen-Jensen, R., & Pavlogiannis, A. (2016). Algorithms for algebraic path properties in concurrent systems of constant treewidth components (Vol. 20–22, pp. 733–747). Presented at the POPL: Principles of Programming Languages, St. Petersburg, FL, USA: ACM. https://doi.org/10.1145/2837614.2837624' chicago: Chatterjee, Krishnendu, Amir Kafshdar Goharshady, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis. “Algorithms for Algebraic Path Properties in Concurrent Systems of Constant Treewidth Components,” 20–22:733–47. ACM, 2016. https://doi.org/10.1145/2837614.2837624. ieee: 'K. Chatterjee, A. K. Goharshady, R. Ibsen-Jensen, and A. Pavlogiannis, “Algorithms for algebraic path properties in concurrent systems of constant treewidth components,” presented at the POPL: Principles of Programming Languages, St. Petersburg, FL, USA, 2016, vol. 20–22, pp. 733–747.' ista: 'Chatterjee K, Goharshady AK, Ibsen-Jensen R, Pavlogiannis A. 2016. Algorithms for algebraic path properties in concurrent systems of constant treewidth components. POPL: Principles of Programming Languages, POPL, vol. 20–22, 733–747.' mla: Chatterjee, Krishnendu, et al. Algorithms for Algebraic Path Properties in Concurrent Systems of Constant Treewidth Components. Vol. 20–22, ACM, 2016, pp. 733–47, doi:10.1145/2837614.2837624. short: K. Chatterjee, A.K. Goharshady, R. Ibsen-Jensen, A. Pavlogiannis, in:, ACM, 2016, pp. 733–747. conference: end_date: 2016-01-22 location: St. Petersburg, FL, USA name: 'POPL: Principles of Programming Languages' start_date: 2016-01-20 date_created: 2018-12-11T11:52:01Z date_published: 2016-01-11T00:00:00Z date_updated: 2024-03-27T23:30:32Z day: '11' department: - _id: KrCh doi: 10.1145/2837614.2837624 ec_funded: 1 external_id: arxiv: - '1510.07565' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1510.07565 month: '01' oa: 1 oa_version: Preprint page: 733 - 747 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_status: published publisher: ACM publist_id: '5761' quality_controlled: '1' related_material: record: - id: '5441' relation: earlier_version status: public - id: '5442' relation: earlier_version status: public - id: '821' relation: dissertation_contains status: public - id: '6009' relation: later_version status: public - id: '8934' relation: dissertation_contains status: public scopus_import: 1 status: public title: Algorithms for algebraic path properties in concurrent systems of constant treewidth components type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 20-22 year: '2016' ... --- _id: '1386' abstract: - lang: eng text: We consider nondeterministic probabilistic programs with the most basic liveness property of termination. We present efficient methods for termination analysis of nondeterministic probabilistic programs with polynomial guards and assignments. Our approach is through synthesis of polynomial ranking supermartingales, that on one hand significantly generalizes linear ranking supermartingales and on the other hand is a counterpart of polynomial ranking-functions for proving termination of nonprobabilistic programs. The approach synthesizes polynomial ranking-supermartingales through Positivstellensatz's, yielding an efficient method which is not only sound, but also semi-complete over a large subclass of programs. We show experimental results to demonstrate that our approach can handle several classical programs with complex polynomial guards and assignments, and can synthesize efficient quadratic ranking-supermartingales when a linear one does not exist even for simple affine programs. alternative_title: - LNCS author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Hongfei full_name: Fu, Hongfei id: 3AAD03D6-F248-11E8-B48F-1D18A9856A87 last_name: Fu - first_name: Amir full_name: Goharshady, Amir id: 391365CE-F248-11E8-B48F-1D18A9856A87 last_name: Goharshady orcid: 0000-0003-1702-6584 citation: ama: 'Chatterjee K, Fu H, Goharshady AK. Termination analysis of probabilistic programs through Positivstellensatz’s. In: Vol 9779. Springer; 2016:3-22. doi:10.1007/978-3-319-41528-4_1' apa: 'Chatterjee, K., Fu, H., & Goharshady, A. K. (2016). Termination analysis of probabilistic programs through Positivstellensatz’s (Vol. 9779, pp. 3–22). Presented at the CAV: Computer Aided Verification, Toronto, Canada: Springer. https://doi.org/10.1007/978-3-319-41528-4_1' chicago: Chatterjee, Krishnendu, Hongfei Fu, and Amir Kafshdar Goharshady. “Termination Analysis of Probabilistic Programs through Positivstellensatz’s,” 9779:3–22. Springer, 2016. https://doi.org/10.1007/978-3-319-41528-4_1. ieee: 'K. Chatterjee, H. Fu, and A. K. Goharshady, “Termination analysis of probabilistic programs through Positivstellensatz’s,” presented at the CAV: Computer Aided Verification, Toronto, Canada, 2016, vol. 9779, pp. 3–22.' ista: 'Chatterjee K, Fu H, Goharshady AK. 2016. Termination analysis of probabilistic programs through Positivstellensatz’s. CAV: Computer Aided Verification, LNCS, vol. 9779, 3–22.' mla: Chatterjee, Krishnendu, et al. Termination Analysis of Probabilistic Programs through Positivstellensatz’s. Vol. 9779, Springer, 2016, pp. 3–22, doi:10.1007/978-3-319-41528-4_1. short: K. Chatterjee, H. Fu, A.K. Goharshady, in:, Springer, 2016, pp. 3–22. conference: end_date: 2016-07-23 location: Toronto, Canada name: 'CAV: Computer Aided Verification' start_date: 2016-07-17 date_created: 2018-12-11T11:51:43Z date_published: 2016-07-01T00:00:00Z date_updated: 2024-03-27T23:30:32Z day: '01' department: - _id: KrCh doi: 10.1007/978-3-319-41528-4_1 ec_funded: 1 intvolume: ' 9779' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1604.07169 month: '07' oa: 1 oa_version: Preprint page: 3 - 22 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling publication_status: published publisher: Springer publist_id: '5824' quality_controlled: '1' related_material: record: - id: '8934' relation: dissertation_contains status: public scopus_import: 1 status: public title: Termination analysis of probabilistic programs through Positivstellensatz's type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 9779 year: '2016' ... --- _id: '10796' abstract: - lang: eng text: 'We consider concurrent mean-payoff games, a very well-studied class of two-player (player 1 vs player 2) zero-sum games on finite-state graphs where every transition is assigned a reward between 0 and 1, and the payoff function is the long-run average of the rewards. The value is the maximal expected payoff that player 1 can guarantee against all strategies of player 2. We consider the computation of the set of states with value 1 under finite-memory strategies for player 1, and our main results for the problem are as follows: (1) we present a polynomial-time algorithm; (2) we show that whenever there is a finite-memory strategy, there is a stationary strategy that does not need memory at all; and (3) we present an optimal bound (which is double exponential) on the patience of stationary strategies (where patience of a distribution is the inverse of the smallest positive probability and represents a complexity measure of a stationary strategy).' acknowledgement: "The research was partly supported by FWF Grant No P 23499-N23, FWF NFN Grant\r\nNo S11407-N23 (RiSE), ERC Start grant (279307: Graph Games), and Microsoft faculty fellows award." article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 citation: ama: 'Chatterjee K, Ibsen-Jensen R. The value 1 problem under finite-memory strategies for concurrent mean-payoff games. In: Proceedings of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms. Vol 2015. SIAM; 2015:1018-1029. doi:10.1137/1.9781611973730.69' apa: 'Chatterjee, K., & Ibsen-Jensen, R. (2015). The value 1 problem under finite-memory strategies for concurrent mean-payoff games. In Proceedings of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms (Vol. 2015, pp. 1018–1029). San Diego, CA, United States: SIAM. https://doi.org/10.1137/1.9781611973730.69' chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “The Value 1 Problem under Finite-Memory Strategies for Concurrent Mean-Payoff Games.” In Proceedings of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms, 2015:1018–29. SIAM, 2015. https://doi.org/10.1137/1.9781611973730.69. ieee: K. Chatterjee and R. Ibsen-Jensen, “The value 1 problem under finite-memory strategies for concurrent mean-payoff games,” in Proceedings of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms, San Diego, CA, United States, 2015, vol. 2015, no. 1, pp. 1018–1029. ista: 'Chatterjee K, Ibsen-Jensen R. 2015. The value 1 problem under finite-memory strategies for concurrent mean-payoff games. Proceedings of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms. SODA: Symposium on Discrete Algorithms vol. 2015, 1018–1029.' mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “The Value 1 Problem under Finite-Memory Strategies for Concurrent Mean-Payoff Games.” Proceedings of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms, vol. 2015, no. 1, SIAM, 2015, pp. 1018–29, doi:10.1137/1.9781611973730.69. short: K. Chatterjee, R. Ibsen-Jensen, in:, Proceedings of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms, SIAM, 2015, pp. 1018–1029. conference: end_date: 2015-01-06 location: San Diego, CA, United States name: 'SODA: Symposium on Discrete Algorithms' start_date: 2015-01-04 date_created: 2022-02-25T12:18:43Z date_published: 2015-01-01T00:00:00Z date_updated: 2022-02-25T12:33:32Z day: '01' department: - _id: KrCh doi: 10.1137/1.9781611973730.69 ec_funded: 1 external_id: arxiv: - '1409.6690' intvolume: ' 2015' issue: '1' language: - iso: eng month: '01' oa_version: Preprint page: 1018-1029 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Proceedings of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms publication_identifier: isbn: - 978-161197374-7 publication_status: published publisher: SIAM quality_controlled: '1' scopus_import: '1' status: public title: The value 1 problem under finite-memory strategies for concurrent mean-payoff games type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 2015 year: '2015' ... --- _id: '1499' abstract: - lang: eng text: "We consider weighted automata with both positive and negative integer weights on edges and\r\nstudy the problem of synchronization using adaptive strategies that may only observe whether\r\nthe current weight-level is negative or nonnegative. We show that the synchronization problem is decidable in polynomial time for deterministic weighted automata." acknowledgement: "The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement 601148 (CASSTING), EU FP7 FET project SENSATION, Sino-Danish Basic Research Center IDAE4CPS, the European Research Council (ERC) under grant agreement 267989 (QUAREM), the Austrian Science Fund (FWF) project S11402-N23 (RiSE) and Z211-N23 (Wittgenstein Award), the Czech Science Foundation under grant agreement P202/12/G061, and People Programme (Marie Curie Actions) of the European Union’s Seventh Framework\r\nProgramme (FP7/2007-2013) REA Grant No 291734." alternative_title: - LIPIcs author: - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Kim full_name: Larsen, Kim last_name: Larsen - first_name: Simon full_name: Laursen, Simon last_name: Laursen - first_name: Jiří full_name: Srba, Jiří last_name: Srba citation: ama: 'Kretinsky J, Larsen K, Laursen S, Srba J. Polynomial time decidability of weighted synchronization under partial observability. In: Vol 42. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2015:142-154. doi:10.4230/LIPIcs.CONCUR.2015.142' apa: 'Kretinsky, J., Larsen, K., Laursen, S., & Srba, J. (2015). Polynomial time decidability of weighted synchronization under partial observability (Vol. 42, pp. 142–154). Presented at the CONCUR: Concurrency Theory, Madrid, Spain: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2015.142' chicago: Kretinsky, Jan, Kim Larsen, Simon Laursen, and Jiří Srba. “Polynomial Time Decidability of Weighted Synchronization under Partial Observability,” 42:142–54. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2015. https://doi.org/10.4230/LIPIcs.CONCUR.2015.142. ieee: 'J. Kretinsky, K. Larsen, S. Laursen, and J. Srba, “Polynomial time decidability of weighted synchronization under partial observability,” presented at the CONCUR: Concurrency Theory, Madrid, Spain, 2015, vol. 42, pp. 142–154.' ista: 'Kretinsky J, Larsen K, Laursen S, Srba J. 2015. Polynomial time decidability of weighted synchronization under partial observability. CONCUR: Concurrency Theory, LIPIcs, vol. 42, 142–154.' mla: Kretinsky, Jan, et al. Polynomial Time Decidability of Weighted Synchronization under Partial Observability. Vol. 42, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2015, pp. 142–54, doi:10.4230/LIPIcs.CONCUR.2015.142. short: J. Kretinsky, K. Larsen, S. Laursen, J. Srba, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2015, pp. 142–154. conference: end_date: 2015-09-04 location: Madrid, Spain name: 'CONCUR: Concurrency Theory' start_date: 2015-09-01 date_created: 2018-12-11T11:52:22Z date_published: 2015-01-01T00:00:00Z date_updated: 2021-01-12T06:51:10Z day: '01' ddc: - '000' - '003' department: - _id: ToHe - _id: KrCh doi: 10.4230/LIPIcs.CONCUR.2015.142 ec_funded: 1 file: - access_level: open_access checksum: 49eb5021caafaabe5356c65b9c5f8c9c content_type: application/pdf creator: system date_created: 2018-12-12T10:08:12Z date_updated: 2020-07-14T12:44:58Z file_id: '4672' file_name: IST-2016-498-v1+1_32.pdf file_size: 623563 relation: main_file file_date_updated: 2020-07-14T12:44:58Z has_accepted_license: '1' intvolume: ' 42' language: - iso: eng month: '01' oa: 1 oa_version: Published Version page: 142 - 154 project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '5680' pubrep_id: '498' quality_controlled: '1' scopus_import: 1 status: public title: Polynomial time decidability of weighted synchronization under partial observability tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 42 year: '2015' ... --- _id: '1559' abstract: - lang: eng text: 'There are deep, yet largely unexplored, connections between computer science and biology. Both disciplines examine how information proliferates in time and space. Central results in computer science describe the complexity of algorithms that solve certain classes of problems. An algorithm is deemed efficient if it can solve a problem in polynomial time, which means the running time of the algorithm is a polynomial function of the length of the input. There are classes of harder problems for which the fastest possible algorithm requires exponential time. Another criterion is the space requirement of the algorithm. There is a crucial distinction between algorithms that can find a solution, verify a solution, or list several distinct solutions in given time and space. The complexity hierarchy that is generated in this way is the foundation of theoretical computer science. Precise complexity results can be notoriously difficult. The famous question whether polynomial time equals nondeterministic polynomial time (i.e., P = NP) is one of the hardest open problems in computer science and all of mathematics. Here, we consider simple processes of ecological and evolutionary spatial dynamics. The basic question is: What is the probability that a new invader (or a new mutant)will take over a resident population?We derive precise complexity results for a variety of scenarios. We therefore show that some fundamental questions in this area cannot be answered by simple equations (assuming that P is not equal to NP).' author: - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Ibsen-Jensen R, Chatterjee K, Nowak M. Computational complexity of ecological and evolutionary spatial dynamics. PNAS. 2015;112(51):15636-15641. doi:10.1073/pnas.1511366112 apa: Ibsen-Jensen, R., Chatterjee, K., & Nowak, M. (2015). Computational complexity of ecological and evolutionary spatial dynamics. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.1511366112 chicago: Ibsen-Jensen, Rasmus, Krishnendu Chatterjee, and Martin Nowak. “Computational Complexity of Ecological and Evolutionary Spatial Dynamics.” PNAS. National Academy of Sciences, 2015. https://doi.org/10.1073/pnas.1511366112. ieee: R. Ibsen-Jensen, K. Chatterjee, and M. Nowak, “Computational complexity of ecological and evolutionary spatial dynamics,” PNAS, vol. 112, no. 51. National Academy of Sciences, pp. 15636–15641, 2015. ista: Ibsen-Jensen R, Chatterjee K, Nowak M. 2015. Computational complexity of ecological and evolutionary spatial dynamics. PNAS. 112(51), 15636–15641. mla: Ibsen-Jensen, Rasmus, et al. “Computational Complexity of Ecological and Evolutionary Spatial Dynamics.” PNAS, vol. 112, no. 51, National Academy of Sciences, 2015, pp. 15636–41, doi:10.1073/pnas.1511366112. short: R. Ibsen-Jensen, K. Chatterjee, M. Nowak, PNAS 112 (2015) 15636–15641. date_created: 2018-12-11T11:52:43Z date_published: 2015-12-22T00:00:00Z date_updated: 2021-01-12T06:51:36Z day: '22' department: - _id: KrCh doi: 10.1073/pnas.1511366112 external_id: pmid: - '26644569' intvolume: ' 112' issue: '51' language: - iso: eng main_file_link: - open_access: '1' url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4697423/ month: '12' oa: 1 oa_version: Submitted Version page: 15636 - 15641 pmid: 1 publication: PNAS publication_status: published publisher: National Academy of Sciences publist_id: '5612' quality_controlled: '1' scopus_import: 1 status: public title: Computational complexity of ecological and evolutionary spatial dynamics type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 112 year: '2015' ... --- _id: '1594' abstract: - lang: eng text: Quantitative extensions of temporal logics have recently attracted significant attention. In this work, we study frequency LTL (fLTL), an extension of LTL which allows to speak about frequencies of events along an execution. Such an extension is particularly useful for probabilistic systems that often cannot fulfil strict qualitative guarantees on the behaviour. It has been recently shown that controller synthesis for Markov decision processes and fLTL is decidable when all the bounds on frequencies are 1. As a step towards a complete quantitative solution, we show that the problem is decidable for the fragment fLTL\GU, where U does not occur in the scope of G (but still F can). Our solution is based on a novel translation of such quantitative formulae into equivalent deterministic automata. acknowledgement: "This work is partly supported by the German Research Council (DFG) as part of the Transregional Collaborative Research Center AVACS (SFB/TR 14), by the Czech Science Foundation under grant agreement P202/12/G061, by the EU 7th Framework Programme under grant agreement no. 295261 (MEALS) and 318490 (SENSATION), by the CDZ project 1023 (CAP), by the CAS/SAFEA International Partnership Program for Creative Research Teams, by the EPSRC grant EP/M023656/1, by the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007–2013) REA Grant No 291734, by the Austrian Science Fund (FWF) S11407-N23 (RiSE/SHiNE), and by the ERC Start Grant (279307: Graph Games).\r\n" alternative_title: - LNCS author: - first_name: Vojtěch full_name: Forejt, Vojtěch last_name: Forejt - first_name: Jan full_name: Krčál, Jan last_name: Krčál - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 citation: ama: 'Forejt V, Krčál J, Kretinsky J. Controller synthesis for MDPs and frequency LTL\GU. In: Vol 9450. Springer; 2015:162-177. doi:10.1007/978-3-662-48899-7_12' apa: 'Forejt, V., Krčál, J., & Kretinsky, J. (2015). Controller synthesis for MDPs and frequency LTL\GU (Vol. 9450, pp. 162–177). Presented at the LPAR: Logic for Programming, Artificial Intelligence, and Reasoning, Suva, Fiji: Springer. https://doi.org/10.1007/978-3-662-48899-7_12' chicago: Forejt, Vojtěch, Jan Krčál, and Jan Kretinsky. “Controller Synthesis for MDPs and Frequency LTL\GU,” 9450:162–77. Springer, 2015. https://doi.org/10.1007/978-3-662-48899-7_12. ieee: 'V. Forejt, J. Krčál, and J. Kretinsky, “Controller synthesis for MDPs and frequency LTL\GU,” presented at the LPAR: Logic for Programming, Artificial Intelligence, and Reasoning, Suva, Fiji, 2015, vol. 9450, pp. 162–177.' ista: 'Forejt V, Krčál J, Kretinsky J. 2015. Controller synthesis for MDPs and frequency LTL\GU. LPAR: Logic for Programming, Artificial Intelligence, and Reasoning, LNCS, vol. 9450, 162–177.' mla: Forejt, Vojtěch, et al. Controller Synthesis for MDPs and Frequency LTL\GU. Vol. 9450, Springer, 2015, pp. 162–77, doi:10.1007/978-3-662-48899-7_12. short: V. Forejt, J. Krčál, J. Kretinsky, in:, Springer, 2015, pp. 162–177. conference: end_date: 2015-11-28 location: Suva, Fiji name: 'LPAR: Logic for Programming, Artificial Intelligence, and Reasoning' start_date: 2015-11-24 date_created: 2018-12-11T11:52:55Z date_published: 2015-11-22T00:00:00Z date_updated: 2021-01-12T06:51:50Z day: '22' department: - _id: ToHe - _id: KrCh doi: 10.1007/978-3-662-48899-7_12 ec_funded: 1 intvolume: ' 9450' language: - iso: eng month: '11' oa_version: None page: 162 - 177 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_status: published publisher: Springer publist_id: '5577' quality_controlled: '1' scopus_import: 1 status: public title: Controller synthesis for MDPs and frequency LTL\GU type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 9450 year: '2015' ... --- _id: '1601' abstract: - lang: eng text: We propose a flexible exchange format for ω-automata, as typically used in formal verification, and implement support for it in a range of established tools. Our aim is to simplify the interaction of tools, helping the research community to build upon other people’s work. A key feature of the format is the use of very generic acceptance conditions, specified by Boolean combinations of acceptance primitives, rather than being limited to common cases such as Büchi, Streett, or Rabin. Such flexibility in the choice of acceptance conditions can be exploited in applications, for example in probabilistic model checking, and furthermore encourages the development of acceptance-agnostic tools for automata manipulations. The format allows acceptance conditions that are either state-based or transition-based, and also supports alternating automata. alternative_title: - LNCS article_processing_charge: No author: - first_name: Tomáš full_name: Babiak, Tomáš last_name: Babiak - first_name: František full_name: Blahoudek, František last_name: Blahoudek - first_name: Alexandre full_name: Duret Lutz, Alexandre last_name: Duret Lutz - first_name: Joachim full_name: Klein, Joachim last_name: Klein - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Daniel full_name: Mueller, Daniel last_name: Mueller - first_name: David full_name: Parker, David last_name: Parker - first_name: Jan full_name: Strejček, Jan last_name: Strejček citation: ama: 'Babiak T, Blahoudek F, Duret Lutz A, et al. The Hanoi omega-automata format. In: Vol 9206. Springer; 2015:479-486. doi:10.1007/978-3-319-21690-4_31' apa: 'Babiak, T., Blahoudek, F., Duret Lutz, A., Klein, J., Kretinsky, J., Mueller, D., … Strejček, J. (2015). The Hanoi omega-automata format (Vol. 9206, pp. 479–486). Presented at the CAV: Computer Aided Verification, San Francisco, CA, United States: Springer. https://doi.org/10.1007/978-3-319-21690-4_31' chicago: Babiak, Tomáš, František Blahoudek, Alexandre Duret Lutz, Joachim Klein, Jan Kretinsky, Daniel Mueller, David Parker, and Jan Strejček. “The Hanoi Omega-Automata Format,” 9206:479–86. Springer, 2015. https://doi.org/10.1007/978-3-319-21690-4_31. ieee: 'T. Babiak et al., “The Hanoi omega-automata format,” presented at the CAV: Computer Aided Verification, San Francisco, CA, United States, 2015, vol. 9206, pp. 479–486.' ista: 'Babiak T, Blahoudek F, Duret Lutz A, Klein J, Kretinsky J, Mueller D, Parker D, Strejček J. 2015. The Hanoi omega-automata format. CAV: Computer Aided Verification, LNCS, vol. 9206, 479–486.' mla: Babiak, Tomáš, et al. The Hanoi Omega-Automata Format. Vol. 9206, Springer, 2015, pp. 479–86, doi:10.1007/978-3-319-21690-4_31. short: T. Babiak, F. Blahoudek, A. Duret Lutz, J. Klein, J. Kretinsky, D. Mueller, D. Parker, J. Strejček, in:, Springer, 2015, pp. 479–486. conference: end_date: 2015-07-24 location: San Francisco, CA, United States name: 'CAV: Computer Aided Verification' start_date: 2015-07-18 date_created: 2018-12-11T11:52:57Z date_published: 2015-07-16T00:00:00Z date_updated: 2021-01-12T06:51:54Z day: '16' ddc: - '000' department: - _id: ToHe - _id: KrCh doi: 10.1007/978-3-319-21690-4_31 ec_funded: 1 file: - access_level: open_access checksum: 5885236fa88a439baba9ac6f3e801e93 content_type: application/pdf creator: dernst date_created: 2020-05-15T08:38:12Z date_updated: 2020-07-14T12:45:04Z file_id: '7850' file_name: 2015_CAV_Babiak.pdf file_size: 1651779 relation: main_file file_date_updated: 2020-07-14T12:45:04Z has_accepted_license: '1' intvolume: ' 9206' language: - iso: eng month: '07' oa: 1 oa_version: Submitted Version page: 479 - 486 project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publication_status: published publisher: Springer publist_id: '5566' quality_controlled: '1' scopus_import: 1 status: public title: The Hanoi omega-automata format type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 9206 year: '2015' ... --- _id: '1609' abstract: - lang: eng text: The synthesis problem asks for the automatic construction of a system from its specification. In the traditional setting, the system is “constructed from scratch” rather than composed from reusable components. However, this is rare in practice, and almost every non-trivial software system relies heavily on the use of libraries of reusable components. Recently, Lustig and Vardi introduced dataflow and controlflow synthesis from libraries of reusable components. They proved that dataflow synthesis is undecidable, while controlflow synthesis is decidable. The problem of controlflow synthesis from libraries of probabilistic components was considered by Nain, Lustig and Vardi, and was shown to be decidable for qualitative analysis (that asks that the specification be satisfied with probability 1). Our main contribution for controlflow synthesis from probabilistic components is to establish better complexity bounds for the qualitative analysis problem, and to show that the more general quantitative problem is undecidable. For the qualitative analysis, we show that the problem (i) is EXPTIME-complete when the specification is given as a deterministic parity word automaton, improving the previously known 2EXPTIME upper bound; and (ii) belongs to UP ∩ coUP and is parity-games hard, when the specification is given directly as a parity condition on the components, improving the previously known EXPTIME upper bound. acknowledgement: 'This research was supported by Austrian Science Fund (FWF) Grant No P23499- N23, FWF NFN Grant No S11407-N23 (SHiNE), ERC Start grant (279307: Graph Games), EU FP7 Project Cassting, NSF grants CNS 1049862 and CCF-1139011, by NSF Expeditions in Computing project “ExCAPE: Expeditions in Computer Augmented Program Engineering”, by BSF grant 9800096, and by gift from Intel.' alternative_title: - LNCS article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Laurent full_name: Doyen, Laurent last_name: Doyen - first_name: Moshe full_name: Vardi, Moshe last_name: Vardi citation: ama: 'Chatterjee K, Doyen L, Vardi M. The complexity of synthesis from probabilistic components. In: 42nd International Colloquium. Vol 9135. Springer Nature; 2015:108-120. doi:10.1007/978-3-662-47666-6_9' apa: 'Chatterjee, K., Doyen, L., & Vardi, M. (2015). The complexity of synthesis from probabilistic components. In 42nd International Colloquium (Vol. 9135, pp. 108–120). Kyoto, Japan: Springer Nature. https://doi.org/10.1007/978-3-662-47666-6_9' chicago: Chatterjee, Krishnendu, Laurent Doyen, and Moshe Vardi. “The Complexity of Synthesis from Probabilistic Components.” In 42nd International Colloquium, 9135:108–20. Springer Nature, 2015. https://doi.org/10.1007/978-3-662-47666-6_9. ieee: K. Chatterjee, L. Doyen, and M. Vardi, “The complexity of synthesis from probabilistic components,” in 42nd International Colloquium, Kyoto, Japan, 2015, vol. 9135, pp. 108–120. ista: 'Chatterjee K, Doyen L, Vardi M. 2015. The complexity of synthesis from probabilistic components. 42nd International Colloquium. ICALP: Automata, Languages and Programming, LNCS, vol. 9135, 108–120.' mla: Chatterjee, Krishnendu, et al. “The Complexity of Synthesis from Probabilistic Components.” 42nd International Colloquium, vol. 9135, Springer Nature, 2015, pp. 108–20, doi:10.1007/978-3-662-47666-6_9. short: K. Chatterjee, L. Doyen, M. Vardi, in:, 42nd International Colloquium, Springer Nature, 2015, pp. 108–120. conference: end_date: 2015-07-10 location: Kyoto, Japan name: 'ICALP: Automata, Languages and Programming' start_date: 2015-07-06 date_created: 2018-12-11T11:53:00Z date_published: 2015-06-20T00:00:00Z date_updated: 2022-02-01T15:04:44Z day: '20' department: - _id: KrCh doi: 10.1007/978-3-662-47666-6_9 ec_funded: 1 intvolume: ' 9135' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1502.04844 month: '06' oa: 1 oa_version: Preprint page: 108 - 120 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: 42nd International Colloquium publication_identifier: isbn: - 978-3-662-47665-9 publication_status: published publisher: Springer Nature publist_id: '5557' quality_controlled: '1' scopus_import: '1' status: public title: The complexity of synthesis from probabilistic components type: conference user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 volume: 9135 year: '2015' ... --- _id: '1624' abstract: - lang: eng text: Population structure can facilitate evolution of cooperation. In a structured population, cooperators can form clusters which resist exploitation by defectors. Recently, it was observed that a shift update rule is an extremely strong amplifier of cooperation in a one dimensional spatial model. For the shift update rule, an individual is chosen for reproduction proportional to fecundity; the offspring is placed next to the parent; a random individual dies. Subsequently, the population is rearranged (shifted) until all individual cells are again evenly spaced out. For large population size and a one dimensional population structure, the shift update rule favors cooperation for any benefit-to-cost ratio greater than one. But every attempt to generalize shift updating to higher dimensions while maintaining its strong effect has failed. The reason is that in two dimensions the clusters are fragmented by the movements caused by rearranging the cells. Here we introduce the natural phenomenon of a repulsive force between cells of different types. After a birth and death event, the cells are being rearranged minimizing the overall energy expenditure. If the repulsive force is sufficiently high, shift becomes a strong promoter of cooperation in two dimensions. acknowledgement: 'The research was supported by the Austrian Science Fund (FWF) Grant No P23499-N23, FWF NFN Grant No S11407-N23 (RiSE/SHiNE), ERC Start grant (279307: Graph Games), and Microsoft Faculty Fellows award. Support from the John Templeton foundation is gratefully acknowledged.' article_number: '17147' author: - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Ben full_name: Adlam, Ben last_name: Adlam - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Pavlogiannis A, Chatterjee K, Adlam B, Nowak M. Cellular cooperation with shift updating and repulsion. Scientific Reports. 2015;5. doi:10.1038/srep17147 apa: Pavlogiannis, A., Chatterjee, K., Adlam, B., & Nowak, M. (2015). Cellular cooperation with shift updating and repulsion. Scientific Reports. Nature Publishing Group. https://doi.org/10.1038/srep17147 chicago: Pavlogiannis, Andreas, Krishnendu Chatterjee, Ben Adlam, and Martin Nowak. “Cellular Cooperation with Shift Updating and Repulsion.” Scientific Reports. Nature Publishing Group, 2015. https://doi.org/10.1038/srep17147. ieee: A. Pavlogiannis, K. Chatterjee, B. Adlam, and M. Nowak, “Cellular cooperation with shift updating and repulsion,” Scientific Reports, vol. 5. Nature Publishing Group, 2015. ista: Pavlogiannis A, Chatterjee K, Adlam B, Nowak M. 2015. Cellular cooperation with shift updating and repulsion. Scientific Reports. 5, 17147. mla: Pavlogiannis, Andreas, et al. “Cellular Cooperation with Shift Updating and Repulsion.” Scientific Reports, vol. 5, 17147, Nature Publishing Group, 2015, doi:10.1038/srep17147. short: A. Pavlogiannis, K. Chatterjee, B. Adlam, M. Nowak, Scientific Reports 5 (2015). date_created: 2018-12-11T11:53:06Z date_published: 2015-11-25T00:00:00Z date_updated: 2021-01-12T06:52:05Z day: '25' ddc: - '000' department: - _id: KrCh doi: 10.1038/srep17147 ec_funded: 1 file: - access_level: open_access checksum: 38e06d8310d2087cae5f6d4d4bfe082b content_type: application/pdf creator: system date_created: 2018-12-12T10:12:29Z date_updated: 2020-07-14T12:45:07Z file_id: '4947' file_name: IST-2016-466-v1+1_srep17147.pdf file_size: 1021931 relation: main_file file_date_updated: 2020-07-14T12:45:07Z has_accepted_license: '1' intvolume: ' 5' language: - iso: eng month: '11' oa: 1 oa_version: Published Version project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Scientific Reports publication_status: published publisher: Nature Publishing Group publist_id: '5536' pubrep_id: '466' quality_controlled: '1' scopus_import: 1 status: public title: Cellular cooperation with shift updating and repulsion tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 5 year: '2015' ... --- _id: '1660' abstract: - lang: eng text: We study the pattern frequency vector for runs in probabilistic Vector Addition Systems with States (pVASS). Intuitively, each configuration of a given pVASS is assigned one of finitely many patterns, and every run can thus be seen as an infinite sequence of these patterns. The pattern frequency vector assigns to each run the limit of pattern frequencies computed for longer and longer prefixes of the run. If the limit does not exist, then the vector is undefined. We show that for one-counter pVASS, the pattern frequency vector is defined and takes one of finitely many values for almost all runs. Further, these values and their associated probabilities can be approximated up to an arbitrarily small relative error in polynomial time. For stable two-counter pVASS, we show the same result, but we do not provide any upper complexity bound. As a byproduct of our study, we discover counterexamples falsifying some classical results about stochastic Petri nets published in the 80s. alternative_title: - LICS author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Stefan full_name: Kiefer, Stefan last_name: Kiefer - first_name: Antonín full_name: Kučera, Antonín last_name: Kučera - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny citation: ama: 'Brázdil T, Kiefer S, Kučera A, Novotný P. Long-run average behaviour of probabilistic vector addition systems. In: IEEE; 2015:44-55. doi:10.1109/LICS.2015.15' apa: 'Brázdil, T., Kiefer, S., Kučera, A., & Novotný, P. (2015). Long-run average behaviour of probabilistic vector addition systems (pp. 44–55). Presented at the LICS: Logic in Computer Science, Kyoto, Japan: IEEE. https://doi.org/10.1109/LICS.2015.15' chicago: Brázdil, Tomáš, Stefan Kiefer, Antonín Kučera, and Petr Novotný. “Long-Run Average Behaviour of Probabilistic Vector Addition Systems,” 44–55. IEEE, 2015. https://doi.org/10.1109/LICS.2015.15. ieee: 'T. Brázdil, S. Kiefer, A. Kučera, and P. Novotný, “Long-run average behaviour of probabilistic vector addition systems,” presented at the LICS: Logic in Computer Science, Kyoto, Japan, 2015, pp. 44–55.' ista: 'Brázdil T, Kiefer S, Kučera A, Novotný P. 2015. Long-run average behaviour of probabilistic vector addition systems. LICS: Logic in Computer Science, LICS, , 44–55.' mla: Brázdil, Tomáš, et al. Long-Run Average Behaviour of Probabilistic Vector Addition Systems. IEEE, 2015, pp. 44–55, doi:10.1109/LICS.2015.15. short: T. Brázdil, S. Kiefer, A. Kučera, P. Novotný, in:, IEEE, 2015, pp. 44–55. conference: end_date: 2015-07-10 location: Kyoto, Japan name: 'LICS: Logic in Computer Science' start_date: 2015-07-06 date_created: 2018-12-11T11:53:19Z date_published: 2015-07-01T00:00:00Z date_updated: 2021-01-12T06:52:20Z day: '01' department: - _id: KrCh doi: 10.1109/LICS.2015.15 ec_funded: 1 language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1505.02655 month: '07' oa: 1 oa_version: Preprint page: 44 - 55 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_status: published publisher: IEEE publist_id: '5490' quality_controlled: '1' scopus_import: 1 status: public title: Long-run average behaviour of probabilistic vector addition systems type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '1665' abstract: - lang: eng text: Which genetic alterations drive tumorigenesis and how they evolve over the course of disease and therapy are central questions in cancer biology. Here we identify 44 recurrently mutated genes and 11 recurrent somatic copy number variations through whole-exome sequencing of 538 chronic lymphocytic leukaemia (CLL) and matched germline DNA samples, 278 of which were collected in a prospective clinical trial. These include previously unrecognized putative cancer drivers (RPS15, IKZF3), and collectively identify RNA processing and export, MYC activity, and MAPK signalling as central pathways involved in CLL. Clonality analysis of this large data set further enabled reconstruction of temporal relationships between driver events. Direct comparison between matched pre-treatment and relapse samples from 59 patients demonstrated highly frequent clonal evolution. Thus, large sequencing data sets of clinically informative samples enable the discovery of novel genes associated with cancer, the network of relationships between the driver events, and their impact on disease relapse and clinical outcome. article_processing_charge: No article_type: original author: - first_name: Dan full_name: Landau, Dan last_name: Landau - first_name: Eugen full_name: Tausch, Eugen last_name: Tausch - first_name: Amaro full_name: Taylor Weiner, Amaro last_name: Taylor Weiner - first_name: Chip full_name: Stewart, Chip last_name: Stewart - first_name: Johannes full_name: Reiter, Johannes id: 4A918E98-F248-11E8-B48F-1D18A9856A87 last_name: Reiter orcid: 0000-0002-0170-7353 - first_name: Jasmin full_name: Bahlo, Jasmin last_name: Bahlo - first_name: Sandra full_name: Kluth, Sandra last_name: Kluth - first_name: Ivana full_name: Božić, Ivana last_name: Božić - first_name: Michael full_name: Lawrence, Michael last_name: Lawrence - first_name: Sebastian full_name: Böttcher, Sebastian last_name: Böttcher - first_name: Scott full_name: Carter, Scott last_name: Carter - first_name: Kristian full_name: Cibulskis, Kristian last_name: Cibulskis - first_name: Daniel full_name: Mertens, Daniel last_name: Mertens - first_name: Carrie full_name: Sougnez, Carrie last_name: Sougnez - first_name: Mara full_name: Rosenberg, Mara last_name: Rosenberg - first_name: Julian full_name: Hess, Julian last_name: Hess - first_name: Jennifer full_name: Edelmann, Jennifer last_name: Edelmann - first_name: Sabrina full_name: Kless, Sabrina last_name: Kless - first_name: Michael full_name: Kneba, Michael last_name: Kneba - first_name: Matthias full_name: Ritgen, Matthias last_name: Ritgen - first_name: Anna full_name: Fink, Anna last_name: Fink - first_name: Kirsten full_name: Fischer, Kirsten last_name: Fischer - first_name: Stacey full_name: Gabriel, Stacey last_name: Gabriel - first_name: Eric full_name: Lander, Eric last_name: Lander - first_name: Martin full_name: Nowak, Martin last_name: Nowak - first_name: Hartmut full_name: Döhner, Hartmut last_name: Döhner - first_name: Michael full_name: Hallek, Michael last_name: Hallek - first_name: Donna full_name: Neuberg, Donna last_name: Neuberg - first_name: Gad full_name: Getz, Gad last_name: Getz - first_name: Stephan full_name: Stilgenbauer, Stephan last_name: Stilgenbauer - first_name: Catherine full_name: Wu, Catherine last_name: Wu citation: ama: Landau D, Tausch E, Taylor Weiner A, et al. Mutations driving CLL and their evolution in progression and relapse. Nature. 2015;526(7574):525-530. doi:10.1038/nature15395 apa: Landau, D., Tausch, E., Taylor Weiner, A., Stewart, C., Reiter, J., Bahlo, J., … Wu, C. (2015). Mutations driving CLL and their evolution in progression and relapse. Nature. Nature Publishing Group. https://doi.org/10.1038/nature15395 chicago: Landau, Dan, Eugen Tausch, Amaro Taylor Weiner, Chip Stewart, Johannes Reiter, Jasmin Bahlo, Sandra Kluth, et al. “Mutations Driving CLL and Their Evolution in Progression and Relapse.” Nature. Nature Publishing Group, 2015. https://doi.org/10.1038/nature15395. ieee: D. Landau et al., “Mutations driving CLL and their evolution in progression and relapse,” Nature, vol. 526, no. 7574. Nature Publishing Group, pp. 525–530, 2015. ista: Landau D, Tausch E, Taylor Weiner A, Stewart C, Reiter J, Bahlo J, Kluth S, Božić I, Lawrence M, Böttcher S, Carter S, Cibulskis K, Mertens D, Sougnez C, Rosenberg M, Hess J, Edelmann J, Kless S, Kneba M, Ritgen M, Fink A, Fischer K, Gabriel S, Lander E, Nowak M, Döhner H, Hallek M, Neuberg D, Getz G, Stilgenbauer S, Wu C. 2015. Mutations driving CLL and their evolution in progression and relapse. Nature. 526(7574), 525–530. mla: Landau, Dan, et al. “Mutations Driving CLL and Their Evolution in Progression and Relapse.” Nature, vol. 526, no. 7574, Nature Publishing Group, 2015, pp. 525–30, doi:10.1038/nature15395. short: D. Landau, E. Tausch, A. Taylor Weiner, C. Stewart, J. Reiter, J. Bahlo, S. Kluth, I. Božić, M. Lawrence, S. Böttcher, S. Carter, K. Cibulskis, D. Mertens, C. Sougnez, M. Rosenberg, J. Hess, J. Edelmann, S. Kless, M. Kneba, M. Ritgen, A. Fink, K. Fischer, S. Gabriel, E. Lander, M. Nowak, H. Döhner, M. Hallek, D. Neuberg, G. Getz, S. Stilgenbauer, C. Wu, Nature 526 (2015) 525–530. date_created: 2018-12-11T11:53:21Z date_published: 2015-10-22T00:00:00Z date_updated: 2021-01-12T06:52:23Z day: '22' department: - _id: KrCh doi: 10.1038/nature15395 ec_funded: 1 external_id: pmid: - '26466571' intvolume: ' 526' issue: '7574' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4815041/ month: '10' oa: 1 oa_version: Submitted Version page: 525 - 530 pmid: 1 project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publication: Nature publication_status: published publisher: Nature Publishing Group publist_id: '5484' quality_controlled: '1' scopus_import: 1 status: public title: Mutations driving CLL and their evolution in progression and relapse type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 526 year: '2015' ... --- _id: '1667' abstract: - lang: eng text: We consider parametric version of fixed-delay continuoustime Markov chains (or equivalently deterministic and stochastic Petri nets, DSPN) where fixed-delay transitions are specified by parameters, rather than concrete values. Our goal is to synthesize values of these parameters that, for a given cost function, minimise expected total cost incurred before reaching a given set of target states. We show that under mild assumptions, optimal values of parameters can be effectively approximated using translation to a Markov decision process (MDP) whose actions correspond to discretized values of these parameters. To this end we identify and overcome several interesting phenomena arising in systems with fixed delays. acknowledgement: The research leading to these results has received funding from the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013) under REA grant agreement n∘ [291734]. This work is partly supported by the German Research Council (DFG) as part of the Transregional Collaborative Research Center AVACS (SFB/TR 14), by the EU 7th Framework Programme under grant agreement no. 295261 (MEALS) and 318490 (SENSATION), by the Czech Science Foundation, grant No. 15-17564S, and by the CAS/SAFEA International Partnership Program for Creative Research Teams. alternative_title: - LNCS author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: L'Uboš full_name: Korenčiak, L'Uboš last_name: Korenčiak - first_name: Jan full_name: Krčál, Jan last_name: Krčál - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny - first_name: Vojtěch full_name: Řehák, Vojtěch last_name: Řehák citation: ama: Brázdil T, Korenčiak L, Krčál J, Novotný P, Řehák V. Optimizing performance of continuous-time stochastic systems using timeout synthesis. 2015;9259:141-159. doi:10.1007/978-3-319-22264-6_10 apa: 'Brázdil, T., Korenčiak, L., Krčál, J., Novotný, P., & Řehák, V. (2015). Optimizing performance of continuous-time stochastic systems using timeout synthesis. Presented at the QEST: Quantitative Evaluation of Systems, Madrid, Spain: Springer. https://doi.org/10.1007/978-3-319-22264-6_10' chicago: Brázdil, Tomáš, L’Uboš Korenčiak, Jan Krčál, Petr Novotný, and Vojtěch Řehák. “Optimizing Performance of Continuous-Time Stochastic Systems Using Timeout Synthesis.” Lecture Notes in Computer Science. Springer, 2015. https://doi.org/10.1007/978-3-319-22264-6_10. ieee: T. Brázdil, L. Korenčiak, J. Krčál, P. Novotný, and V. Řehák, “Optimizing performance of continuous-time stochastic systems using timeout synthesis,” vol. 9259. Springer, pp. 141–159, 2015. ista: Brázdil T, Korenčiak L, Krčál J, Novotný P, Řehák V. 2015. Optimizing performance of continuous-time stochastic systems using timeout synthesis. 9259, 141–159. mla: Brázdil, Tomáš, et al. Optimizing Performance of Continuous-Time Stochastic Systems Using Timeout Synthesis. Vol. 9259, Springer, 2015, pp. 141–59, doi:10.1007/978-3-319-22264-6_10. short: T. Brázdil, L. Korenčiak, J. Krčál, P. Novotný, V. Řehák, 9259 (2015) 141–159. conference: end_date: 2015-09-03 location: Madrid, Spain name: 'QEST: Quantitative Evaluation of Systems' start_date: 2015-09-01 date_created: 2018-12-11T11:53:22Z date_published: 2015-08-22T00:00:00Z date_updated: 2021-01-12T06:52:24Z day: '22' department: - _id: KrCh doi: 10.1007/978-3-319-22264-6_10 ec_funded: 1 intvolume: ' 9259' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1407.4777 month: '08' oa: 1 oa_version: Preprint page: 141 - 159 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_status: published publisher: Springer publist_id: '5482' quality_controlled: '1' scopus_import: 1 series_title: Lecture Notes in Computer Science status: public title: Optimizing performance of continuous-time stochastic systems using timeout synthesis type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 9259 year: '2015' ... --- _id: '1673' abstract: - lang: eng text: 'When a new mutant arises in a population, there is a probability it outcompetes the residents and fixes. The structure of the population can affect this fixation probability. Suppressing population structures reduce the difference between two competing variants, while amplifying population structures enhance the difference. Suppressors are ubiquitous and easy to construct, but amplifiers for the large population limit are more elusive and only a few examples have been discovered. Whether or not a population structure is an amplifier of selection depends on the probability distribution for the placement of the invading mutant. First, we prove that there exist only bounded amplifiers for adversarial placement-that is, for arbitrary initial conditions. Next, we show that the Star population structure, which is known to amplify for mutants placed uniformly at random, does not amplify for mutants that arise through reproduction and are therefore placed proportional to the temperatures of the vertices. Finally, we construct population structures that amplify for all mutational events that arise through reproduction, uniformly at random, or through some combination of the two. ' acknowledgement: 'K.C. gratefully acknowledges support from ERC Start grant no. (279307: Graph Games), Austrian Science Fund (FWF) grant no. P23499-N23, and FWF NFN grant no. S11407-N23 (RiSE). ' article_number: '20150114' author: - first_name: Ben full_name: Adlam, Ben last_name: Adlam - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: 'Adlam B, Chatterjee K, Nowak M. Amplifiers of selection. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 2015;471(2181). doi:10.1098/rspa.2015.0114' apa: 'Adlam, B., Chatterjee, K., & Nowak, M. (2015). Amplifiers of selection. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. Royal Society of London. https://doi.org/10.1098/rspa.2015.0114' chicago: 'Adlam, Ben, Krishnendu Chatterjee, and Martin Nowak. “Amplifiers of Selection.” Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. Royal Society of London, 2015. https://doi.org/10.1098/rspa.2015.0114.' ieee: 'B. Adlam, K. Chatterjee, and M. Nowak, “Amplifiers of selection,” Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 471, no. 2181. Royal Society of London, 2015.' ista: 'Adlam B, Chatterjee K, Nowak M. 2015. Amplifiers of selection. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 471(2181), 20150114.' mla: 'Adlam, Ben, et al. “Amplifiers of Selection.” Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 471, no. 2181, 20150114, Royal Society of London, 2015, doi:10.1098/rspa.2015.0114.' short: 'B. Adlam, K. Chatterjee, M. Nowak, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 471 (2015).' date_created: 2018-12-11T11:53:24Z date_published: 2015-09-08T00:00:00Z date_updated: 2021-01-12T06:52:26Z day: '08' ddc: - '000' department: - _id: KrCh doi: 10.1098/rspa.2015.0114 ec_funded: 1 file: - access_level: open_access checksum: e613d94d283c776322403a28aad11bdd content_type: application/pdf creator: kschuh date_created: 2019-04-18T12:39:56Z date_updated: 2020-07-14T12:45:11Z file_id: '6342' file_name: 2015_rspa_Adlam.pdf file_size: 391466 relation: main_file file_date_updated: 2020-07-14T12:45:11Z has_accepted_license: '1' intvolume: ' 471' issue: '2181' language: - iso: eng month: '09' oa: 1 oa_version: Published Version project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publication: 'Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences' publication_status: published publisher: Royal Society of London publist_id: '5477' quality_controlled: '1' scopus_import: 1 status: public title: Amplifiers of selection type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 471 year: '2015' ... --- _id: '1691' abstract: - lang: eng text: We consider a case study of the problem of deploying an autonomous air vehicle in a partially observable, dynamic, indoor environment from a specification given as a linear temporal logic (LTL) formula over regions of interest. We model the motion and sensing capabilities of the vehicle as a partially observable Markov decision process (POMDP). We adapt recent results for solving POMDPs with parity objectives to generate a control policy. We also extend the existing framework with a policy minimization technique to obtain a better implementable policy, while preserving its correctness. The proposed techniques are illustrated in an experimental setup involving an autonomous quadrotor performing surveillance in a dynamic environment. author: - first_name: Mária full_name: Svoreňová, Mária last_name: Svoreňová - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Kevin full_name: Leahy, Kevin last_name: Leahy - first_name: Hasan full_name: Eniser, Hasan last_name: Eniser - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Ivana full_name: Cěrná, Ivana last_name: Cěrná - first_name: Cǎlin full_name: Belta, Cǎlin last_name: Belta citation: ama: 'Svoreňová M, Chmelik M, Leahy K, et al. Temporal logic motion planning using POMDPs with parity objectives: Case study paper. In: Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control. ACM; 2015:233-238. doi:10.1145/2728606.2728617' apa: 'Svoreňová, M., Chmelik, M., Leahy, K., Eniser, H., Chatterjee, K., Cěrná, I., & Belta, C. (2015). Temporal logic motion planning using POMDPs with parity objectives: Case study paper. In Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control (pp. 233–238). Seattle, WA, United States: ACM. https://doi.org/10.1145/2728606.2728617' chicago: 'Svoreňová, Mária, Martin Chmelik, Kevin Leahy, Hasan Eniser, Krishnendu Chatterjee, Ivana Cěrná, and Cǎlin Belta. “Temporal Logic Motion Planning Using POMDPs with Parity Objectives: Case Study Paper.” In Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control, 233–38. ACM, 2015. https://doi.org/10.1145/2728606.2728617.' ieee: 'M. Svoreňová et al., “Temporal logic motion planning using POMDPs with parity objectives: Case study paper,” in Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control, Seattle, WA, United States, 2015, pp. 233–238.' ista: 'Svoreňová M, Chmelik M, Leahy K, Eniser H, Chatterjee K, Cěrná I, Belta C. 2015. Temporal logic motion planning using POMDPs with parity objectives: Case study paper. Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control. HSCC: Hybrid Systems - Computation and Control, 233–238.' mla: 'Svoreňová, Mária, et al. “Temporal Logic Motion Planning Using POMDPs with Parity Objectives: Case Study Paper.” Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control, ACM, 2015, pp. 233–38, doi:10.1145/2728606.2728617.' short: 'M. Svoreňová, M. Chmelik, K. Leahy, H. Eniser, K. Chatterjee, I. Cěrná, C. Belta, in:, Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control, ACM, 2015, pp. 233–238.' conference: end_date: 2015-04-16 location: Seattle, WA, United States name: 'HSCC: Hybrid Systems - Computation and Control' start_date: 2015-04-14 date_created: 2018-12-11T11:53:29Z date_published: 2015-04-14T00:00:00Z date_updated: 2021-01-12T06:52:33Z day: '14' department: - _id: KrCh doi: 10.1145/2728606.2728617 ec_funded: 1 language: - iso: eng month: '04' oa_version: None page: 233 - 238 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: 'Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control' publication_status: published publisher: ACM publist_id: '5453' scopus_import: 1 status: public title: 'Temporal logic motion planning using POMDPs with parity objectives: Case study paper' type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '1694' abstract: - lang: eng text: "\r\nWe introduce quantitative timed refinement and timed simulation (directed) metrics, incorporating zenoness checks, for timed systems. These metrics assign positive real numbers which quantify the timing mismatches between two timed systems, amongst non-zeno runs. We quantify timing mismatches in three ways: (1) the maximal timing mismatch that can arise, (2) the “steady-state” maximal timing mismatches, where initial transient timing mismatches are ignored; and (3) the (long-run) average timing mismatches amongst two systems. These three kinds of mismatches constitute three important types of timing differences. Our event times are the global times, measured from the start of the system execution, not just the time durations of individual steps. We present algorithms over timed automata for computing the three quantitative simulation distances to within any desired degree of accuracy. In order to compute the values of the quantitative simulation distances, we use a game theoretic formulation. We introduce two new kinds of objectives for two player games on finite-state game graphs: (1) eventual debit-sum level objectives, and (2) average debit-sum level objectives. We present algorithms for computing the optimal values for these objectives in graph games, and then use these algorithms to compute the values of the timed simulation distances over timed automata.\r\n" author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Vinayak full_name: Prabhu, Vinayak last_name: Prabhu citation: ama: Chatterjee K, Prabhu V. Quantitative temporal simulation and refinement distances for timed systems. IEEE Transactions on Automatic Control. 2015;60(9):2291-2306. doi:10.1109/TAC.2015.2404612 apa: Chatterjee, K., & Prabhu, V. (2015). Quantitative temporal simulation and refinement distances for timed systems. IEEE Transactions on Automatic Control. IEEE. https://doi.org/10.1109/TAC.2015.2404612 chicago: Chatterjee, Krishnendu, and Vinayak Prabhu. “Quantitative Temporal Simulation and Refinement Distances for Timed Systems.” IEEE Transactions on Automatic Control. IEEE, 2015. https://doi.org/10.1109/TAC.2015.2404612. ieee: K. Chatterjee and V. Prabhu, “Quantitative temporal simulation and refinement distances for timed systems,” IEEE Transactions on Automatic Control, vol. 60, no. 9. IEEE, pp. 2291–2306, 2015. ista: Chatterjee K, Prabhu V. 2015. Quantitative temporal simulation and refinement distances for timed systems. IEEE Transactions on Automatic Control. 60(9), 2291–2306. mla: Chatterjee, Krishnendu, and Vinayak Prabhu. “Quantitative Temporal Simulation and Refinement Distances for Timed Systems.” IEEE Transactions on Automatic Control, vol. 60, no. 9, IEEE, 2015, pp. 2291–306, doi:10.1109/TAC.2015.2404612. short: K. Chatterjee, V. Prabhu, IEEE Transactions on Automatic Control 60 (2015) 2291–2306. date_created: 2018-12-11T11:53:30Z date_published: 2015-02-24T00:00:00Z date_updated: 2021-01-12T06:52:34Z day: '24' department: - _id: KrCh doi: 10.1109/TAC.2015.2404612 ec_funded: 1 intvolume: ' 60' issue: '9' language: - iso: eng month: '02' oa_version: None page: 2291 - 2306 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: IEEE Transactions on Automatic Control publication_status: published publisher: IEEE publist_id: '5450' quality_controlled: '1' scopus_import: 1 status: public title: Quantitative temporal simulation and refinement distances for timed systems type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 60 year: '2015' ... --- _id: '1698' abstract: - lang: eng text: 'In mean-payoff games, the objective of the protagonist is to ensure that the limit average of an infinite sequence of numeric weights is nonnegative. In energy games, the objective is to ensure that the running sum of weights is always nonnegative. Multi-mean-payoff and multi-energy games replace individual weights by tuples, and the limit average (resp., running sum) of each coordinate must be (resp., remain) nonnegative. We prove finite-memory determinacy of multi-energy games and show inter-reducibility of multi-mean-payoff and multi-energy games for finite-memory strategies. We improve the computational complexity for solving both classes with finite-memory strategies: we prove coNP-completeness improving the previous known EXPSPACE bound. For memoryless strategies, we show that deciding the existence of a winning strategy for the protagonist is NP-complete. We present the first solution of multi-mean-payoff games with infinite-memory strategies: we show that mean-payoff-sup objectives can be decided in NP∩coNP, whereas mean-payoff-inf objectives are coNP-complete.' acknowledgement: 'The research was partly supported by Austrian Science Fund (FWF) Grant No P23499-N23, FWF NFN Grant No S11407-N23 and S11402-N23 (RiSE), ERC Start grant (279307: Graph Games), Microsoft faculty fellows award, the ERC Advanced Grant QUAREM (267989: Quantitative Reactive Modeling), European project Cassting (FP7-601148), ERC Start grant (279499: inVEST).' author: - first_name: Yaron full_name: Velner, Yaron last_name: Velner - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Laurent full_name: Doyen, Laurent last_name: Doyen - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Alexander full_name: Rabinovich, Alexander last_name: Rabinovich - first_name: Jean full_name: Raskin, Jean last_name: Raskin citation: ama: Velner Y, Chatterjee K, Doyen L, Henzinger TA, Rabinovich A, Raskin J. The complexity of multi-mean-payoff and multi-energy games. Information and Computation. 2015;241(4):177-196. doi:10.1016/j.ic.2015.03.001 apa: Velner, Y., Chatterjee, K., Doyen, L., Henzinger, T. A., Rabinovich, A., & Raskin, J. (2015). The complexity of multi-mean-payoff and multi-energy games. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2015.03.001 chicago: Velner, Yaron, Krishnendu Chatterjee, Laurent Doyen, Thomas A Henzinger, Alexander Rabinovich, and Jean Raskin. “The Complexity of Multi-Mean-Payoff and Multi-Energy Games.” Information and Computation. Elsevier, 2015. https://doi.org/10.1016/j.ic.2015.03.001. ieee: Y. Velner, K. Chatterjee, L. Doyen, T. A. Henzinger, A. Rabinovich, and J. Raskin, “The complexity of multi-mean-payoff and multi-energy games,” Information and Computation, vol. 241, no. 4. Elsevier, pp. 177–196, 2015. ista: Velner Y, Chatterjee K, Doyen L, Henzinger TA, Rabinovich A, Raskin J. 2015. The complexity of multi-mean-payoff and multi-energy games. Information and Computation. 241(4), 177–196. mla: Velner, Yaron, et al. “The Complexity of Multi-Mean-Payoff and Multi-Energy Games.” Information and Computation, vol. 241, no. 4, Elsevier, 2015, pp. 177–96, doi:10.1016/j.ic.2015.03.001. short: Y. Velner, K. Chatterjee, L. Doyen, T.A. Henzinger, A. Rabinovich, J. Raskin, Information and Computation 241 (2015) 177–196. date_created: 2018-12-11T11:53:32Z date_published: 2015-04-01T00:00:00Z date_updated: 2021-01-12T06:52:36Z day: '01' department: - _id: KrCh - _id: ToHe doi: 10.1016/j.ic.2015.03.001 ec_funded: 1 intvolume: ' 241' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1209.3234 month: '04' oa: 1 oa_version: Preprint page: 177 - 196 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling publication: Information and Computation publication_status: published publisher: Elsevier publist_id: '5443' quality_controlled: '1' scopus_import: 1 status: public title: The complexity of multi-mean-payoff and multi-energy games type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 241 year: '2015' ... --- _id: '1820' abstract: - lang: eng text: 'We consider partially observable Markov decision processes (POMDPs) with a set of target states and every transition is associated with an integer cost. The optimization objec- tive we study asks to minimize the expected total cost till the target set is reached, while ensuring that the target set is reached almost-surely (with probability 1). We show that for integer costs approximating the optimal cost is undecidable. For positive costs, our results are as follows: (i) we establish matching lower and upper bounds for the optimal cost and the bound is double exponential; (ii) we show that the problem of approximating the optimal cost is decidable and present ap- proximation algorithms developing on the existing algorithms for POMDPs with finite-horizon objectives. While the worst- case running time of our algorithm is double exponential, we present efficient stopping criteria for the algorithm and show experimentally that it performs well in many examples.' acknowledgement: ' The research was partly supported by Austrian Science Fund (FWF) Grant No P23499-N23, FWF NFN Grant No S11407-N23 (RiSE), ERC Start grant (279307: Graph Games), and Microsoft faculty fellows award.' alternative_title: - Artifical Intelligence author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Raghav full_name: Gupta, Raghav last_name: Gupta - first_name: Ayush full_name: Kanodia, Ayush last_name: Kanodia citation: ama: 'Chatterjee K, Chmelik M, Gupta R, Kanodia A. Optimal cost almost-sure reachability in POMDPs. In: Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence . Vol 5. AAAI Press; 2015:3496-3502.' apa: 'Chatterjee, K., Chmelik, M., Gupta, R., & Kanodia, A. (2015). Optimal cost almost-sure reachability in POMDPs. In Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence (Vol. 5, pp. 3496–3502). Austin, TX, USA: AAAI Press.' chicago: Chatterjee, Krishnendu, Martin Chmelik, Raghav Gupta, and Ayush Kanodia. “Optimal Cost Almost-Sure Reachability in POMDPs.” In Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence , 5:3496–3502. AAAI Press, 2015. ieee: K. Chatterjee, M. Chmelik, R. Gupta, and A. Kanodia, “Optimal cost almost-sure reachability in POMDPs,” in Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence , Austin, TX, USA, 2015, vol. 5, pp. 3496–3502. ista: 'Chatterjee K, Chmelik M, Gupta R, Kanodia A. 2015. Optimal cost almost-sure reachability in POMDPs. Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence . IAAI: Innovative Applications of Artificial Intelligence, Artifical Intelligence, vol. 5, 3496–3502.' mla: Chatterjee, Krishnendu, et al. “Optimal Cost Almost-Sure Reachability in POMDPs.” Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence , vol. 5, AAAI Press, 2015, pp. 3496–502. short: K. Chatterjee, M. Chmelik, R. Gupta, A. Kanodia, in:, Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence , AAAI Press, 2015, pp. 3496–3502. conference: end_date: 2015-01-30 location: Austin, TX, USA name: 'IAAI: Innovative Applications of Artificial Intelligence' start_date: 2015-01-25 date_created: 2018-12-11T11:54:11Z date_published: 2015-06-01T00:00:00Z date_updated: 2023-02-23T10:02:57Z day: '01' department: - _id: KrCh ec_funded: 1 external_id: arxiv: - '1411.3880' intvolume: ' 5' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1411.3880 month: '06' oa: 1 oa_version: Preprint page: 3496-3502 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: 'Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence ' publication_status: published publisher: AAAI Press publist_id: '5286' quality_controlled: '1' related_material: record: - id: '1529' relation: later_version status: public scopus_import: 1 status: public title: Optimal cost almost-sure reachability in POMDPs type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 5 year: '2015' ... --- _id: '1838' abstract: - lang: eng text: Synthesis of program parts is particularly useful for concurrent systems. However, most approaches do not support common design tasks, like modifying a single process without having to re-synthesize or verify the whole system. Assume-guarantee synthesis (AGS) provides robustness against modifications of system parts, but thus far has been limited to the perfect information setting. This means that local variables cannot be hidden from other processes, which renders synthesis results cumbersome or even impossible to realize.We resolve this shortcoming by defining AGS under partial information. We analyze the complexity and decidability in different settings, showing that the problem has a high worstcase complexity and is undecidable in many interesting cases. Based on these observations, we present a pragmatic algorithm based on bounded synthesis, and demonstrate its practical applicability on several examples. acknowledgement: 'This work was supported by the Austrian Science Fund (FWF) through the research network RiSE (S11406-N23, S11407-N23) and grant nr. P23499-N23, by the European Commission through an ERC Start grant (279307: Graph Games) and project STANCE (317753), as well as by the German Research Foundation (DFG) through SFB/TR 14 AVACS and project ASDPS(JA 2357/2-1).' alternative_title: - LNCS author: - first_name: Roderick full_name: Bloem, Roderick last_name: Bloem - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Swen full_name: Jacobs, Swen last_name: Jacobs - first_name: Robert full_name: Könighofer, Robert last_name: Könighofer citation: ama: 'Bloem R, Chatterjee K, Jacobs S, Könighofer R. Assume-guarantee synthesis for concurrent reactive programs with partial information. In: Vol 9035. Springer; 2015:517-532. doi:10.1007/978-3-662-46681-0_50' apa: 'Bloem, R., Chatterjee, K., Jacobs, S., & Könighofer, R. (2015). Assume-guarantee synthesis for concurrent reactive programs with partial information (Vol. 9035, pp. 517–532). Presented at the TACAS: Tools and Algorithms for the Construction and Analysis of Systems, London, United Kingdom: Springer. https://doi.org/10.1007/978-3-662-46681-0_50' chicago: Bloem, Roderick, Krishnendu Chatterjee, Swen Jacobs, and Robert Könighofer. “Assume-Guarantee Synthesis for Concurrent Reactive Programs with Partial Information,” 9035:517–32. Springer, 2015. https://doi.org/10.1007/978-3-662-46681-0_50. ieee: 'R. Bloem, K. Chatterjee, S. Jacobs, and R. Könighofer, “Assume-guarantee synthesis for concurrent reactive programs with partial information,” presented at the TACAS: Tools and Algorithms for the Construction and Analysis of Systems, London, United Kingdom, 2015, vol. 9035, pp. 517–532.' ista: 'Bloem R, Chatterjee K, Jacobs S, Könighofer R. 2015. Assume-guarantee synthesis for concurrent reactive programs with partial information. TACAS: Tools and Algorithms for the Construction and Analysis of Systems, LNCS, vol. 9035, 517–532.' mla: Bloem, Roderick, et al. Assume-Guarantee Synthesis for Concurrent Reactive Programs with Partial Information. Vol. 9035, Springer, 2015, pp. 517–32, doi:10.1007/978-3-662-46681-0_50. short: R. Bloem, K. Chatterjee, S. Jacobs, R. Könighofer, in:, Springer, 2015, pp. 517–532. conference: end_date: 2015-04-18 location: London, United Kingdom name: 'TACAS: Tools and Algorithms for the Construction and Analysis of Systems' start_date: 2015-04-11 date_created: 2018-12-11T11:54:17Z date_published: 2015-01-01T00:00:00Z date_updated: 2021-01-12T06:53:32Z day: '01' department: - _id: KrCh doi: 10.1007/978-3-662-46681-0_50 ec_funded: 1 intvolume: ' 9035' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1411.4604 month: '01' oa: 1 oa_version: Preprint page: 517 - 532 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_status: published publisher: Springer publist_id: '5264' scopus_import: 1 status: public title: Assume-guarantee synthesis for concurrent reactive programs with partial information type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 9035 year: '2015' ... --- _id: '1839' abstract: - lang: eng text: We present MultiGain, a tool to synthesize strategies for Markov decision processes (MDPs) with multiple mean-payoff objectives. Our models are described in PRISM, and our tool uses the existing interface and simulator of PRISM. Our tool extends PRISM by adding novel algorithms for multiple mean-payoff objectives, and also provides features such as (i) generating strategies and exploring them for simulation, and checking them with respect to other properties; and (ii) generating an approximate Pareto curve for two mean-payoff objectives. In addition, we present a new practical algorithm for the analysis of MDPs with multiple mean-payoff objectives under memoryless strategies. alternative_title: - LNCS author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Vojtěch full_name: Forejt, Vojtěch last_name: Forejt - first_name: Antonín full_name: Kučera, Antonín last_name: Kučera citation: ama: 'Brázdil T, Chatterjee K, Forejt V, Kučera A. Multigain: A controller synthesis tool for MDPs with multiple mean-payoff objectives. 2015;9035:181-187. doi:10.1007/978-3-662-46681-0_12' apa: 'Brázdil, T., Chatterjee, K., Forejt, V., & Kučera, A. (2015). Multigain: A controller synthesis tool for MDPs with multiple mean-payoff objectives. Presented at the TACAS: Tools and Algorithms for the Construction and Analysis of Systems, London, United Kingdom: Springer. https://doi.org/10.1007/978-3-662-46681-0_12' chicago: 'Brázdil, Tomáš, Krishnendu Chatterjee, Vojtěch Forejt, and Antonín Kučera. “Multigain: A Controller Synthesis Tool for MDPs with Multiple Mean-Payoff Objectives.” Lecture Notes in Computer Science. Springer, 2015. https://doi.org/10.1007/978-3-662-46681-0_12.' ieee: 'T. Brázdil, K. Chatterjee, V. Forejt, and A. Kučera, “Multigain: A controller synthesis tool for MDPs with multiple mean-payoff objectives,” vol. 9035. Springer, pp. 181–187, 2015.' ista: 'Brázdil T, Chatterjee K, Forejt V, Kučera A. 2015. Multigain: A controller synthesis tool for MDPs with multiple mean-payoff objectives. 9035, 181–187.' mla: 'Brázdil, Tomáš, et al. Multigain: A Controller Synthesis Tool for MDPs with Multiple Mean-Payoff Objectives. Vol. 9035, Springer, 2015, pp. 181–87, doi:10.1007/978-3-662-46681-0_12.' short: T. Brázdil, K. Chatterjee, V. Forejt, A. Kučera, 9035 (2015) 181–187. conference: end_date: 2015-04-18 location: London, United Kingdom name: 'TACAS: Tools and Algorithms for the Construction and Analysis of Systems' start_date: 2015-04-11 date_created: 2018-12-11T11:54:18Z date_published: 2015-01-01T00:00:00Z date_updated: 2020-01-21T13:18:52Z day: '01' department: - _id: KrCh doi: 10.1007/978-3-662-46681-0_12 ec_funded: 1 intvolume: ' 9035' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1501.03093 month: '01' oa: 1 oa_version: Preprint page: 181 - 187 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_status: published publisher: Springer publist_id: '5263' quality_controlled: '1' series_title: Lecture Notes in Computer Science status: public title: 'Multigain: A controller synthesis tool for MDPs with multiple mean-payoff objectives' type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 9035 year: '2015' ... --- _id: '1846' abstract: - lang: eng text: Modal transition systems (MTS) is a well-studied specification formalism of reactive systems supporting a step-wise refinement methodology. Despite its many advantages, the formalism as well as its currently known extensions are incapable of expressing some practically needed aspects in the refinement process like exclusive, conditional and persistent choices. We introduce a new model called parametric modal transition systems (PMTS) together with a general modal refinement notion that overcomes many of the limitations. We investigate the computational complexity of modal and thorough refinement checking on PMTS and its subclasses and provide a direct encoding of the modal refinement problem into quantified Boolean formulae, allowing us to employ state-of-the-art QBF solvers for modal refinement checking. The experiments we report on show that the feasibility of refinement checking is more influenced by the degree of nondeterminism rather than by the syntactic restrictions on the types of formulae allowed in the description of the PMTS. article_processing_charge: No article_type: original author: - first_name: Nikola full_name: Beneš, Nikola last_name: Beneš - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Kim full_name: Larsen, Kim last_name: Larsen - first_name: Mikael full_name: Möller, Mikael last_name: Möller - first_name: Salomon full_name: Sickert, Salomon last_name: Sickert - first_name: Jiří full_name: Srba, Jiří last_name: Srba citation: ama: Beneš N, Kretinsky J, Larsen K, Möller M, Sickert S, Srba J. Refinement checking on parametric modal transition systems. Acta Informatica. 2015;52(2-3):269-297. doi:10.1007/s00236-015-0215-4 apa: Beneš, N., Kretinsky, J., Larsen, K., Möller, M., Sickert, S., & Srba, J. (2015). Refinement checking on parametric modal transition systems. Acta Informatica. Springer. https://doi.org/10.1007/s00236-015-0215-4 chicago: Beneš, Nikola, Jan Kretinsky, Kim Larsen, Mikael Möller, Salomon Sickert, and Jiří Srba. “Refinement Checking on Parametric Modal Transition Systems.” Acta Informatica. Springer, 2015. https://doi.org/10.1007/s00236-015-0215-4. ieee: N. Beneš, J. Kretinsky, K. Larsen, M. Möller, S. Sickert, and J. Srba, “Refinement checking on parametric modal transition systems,” Acta Informatica, vol. 52, no. 2–3. Springer, pp. 269–297, 2015. ista: Beneš N, Kretinsky J, Larsen K, Möller M, Sickert S, Srba J. 2015. Refinement checking on parametric modal transition systems. Acta Informatica. 52(2–3), 269–297. mla: Beneš, Nikola, et al. “Refinement Checking on Parametric Modal Transition Systems.” Acta Informatica, vol. 52, no. 2–3, Springer, 2015, pp. 269–97, doi:10.1007/s00236-015-0215-4. short: N. Beneš, J. Kretinsky, K. Larsen, M. Möller, S. Sickert, J. Srba, Acta Informatica 52 (2015) 269–297. date_created: 2018-12-11T11:54:20Z date_published: 2015-04-01T00:00:00Z date_updated: 2021-01-12T06:53:35Z day: '01' ddc: - '000' department: - _id: ToHe - _id: KrCh doi: 10.1007/s00236-015-0215-4 ec_funded: 1 file: - access_level: open_access checksum: fb4037ddc4fc05f33080dd3547ede350 content_type: application/pdf creator: dernst date_created: 2020-05-15T08:57:44Z date_updated: 2020-07-14T12:45:19Z file_id: '7854' file_name: 2015_ActaInfo_Benes.pdf file_size: 488482 relation: main_file file_date_updated: 2020-07-14T12:45:19Z has_accepted_license: '1' intvolume: ' 52' issue: 2-3 language: - iso: eng month: '04' oa: 1 oa_version: Submitted Version page: 269 - 297 project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publication: Acta Informatica publication_status: published publisher: Springer publist_id: '5255' quality_controlled: '1' scopus_import: 1 status: public title: Refinement checking on parametric modal transition systems type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 52 year: '2015' ... --- _id: '1851' abstract: - lang: eng text: We consider mating strategies for females who search for males sequentially during a season of limited length. We show that the best strategy rejects a given male type if encountered before a time-threshold but accepts him after. For frequency-independent benefits, we obtain the optimal time-thresholds explicitly for both discrete and continuous distributions of males, and allow for mistakes being made in assessing the correct male type. When the benefits are indirect (genes for the offspring) and the population is under frequency-dependent ecological selection, the benefits depend on the mating strategy of other females as well. This case is particularly relevant to speciation models that seek to explore the stability of reproductive isolation by assortative mating under frequency-dependent ecological selection. We show that the indirect benefits are to be quantified by the reproductive values of couples, and describe how the evolutionarily stable time-thresholds can be found. We conclude with an example based on the Levene model, in which we analyze the evolutionarily stable assortative mating strategies and the strength of reproductive isolation provided by them. article_processing_charge: No article_type: original author: - first_name: Tadeas full_name: Priklopil, Tadeas id: 3C869AA0-F248-11E8-B48F-1D18A9856A87 last_name: Priklopil - first_name: Eva full_name: Kisdi, Eva last_name: Kisdi - first_name: Mats full_name: Gyllenberg, Mats last_name: Gyllenberg citation: ama: Priklopil T, Kisdi E, Gyllenberg M. Evolutionarily stable mating decisions for sequentially searching females and the stability of reproductive isolation by assortative mating. Evolution. 2015;69(4):1015-1026. doi:10.1111/evo.12618 apa: Priklopil, T., Kisdi, E., & Gyllenberg, M. (2015). Evolutionarily stable mating decisions for sequentially searching females and the stability of reproductive isolation by assortative mating. Evolution. Wiley. https://doi.org/10.1111/evo.12618 chicago: Priklopil, Tadeas, Eva Kisdi, and Mats Gyllenberg. “Evolutionarily Stable Mating Decisions for Sequentially Searching Females and the Stability of Reproductive Isolation by Assortative Mating.” Evolution. Wiley, 2015. https://doi.org/10.1111/evo.12618. ieee: T. Priklopil, E. Kisdi, and M. Gyllenberg, “Evolutionarily stable mating decisions for sequentially searching females and the stability of reproductive isolation by assortative mating,” Evolution, vol. 69, no. 4. Wiley, pp. 1015–1026, 2015. ista: Priklopil T, Kisdi E, Gyllenberg M. 2015. Evolutionarily stable mating decisions for sequentially searching females and the stability of reproductive isolation by assortative mating. Evolution. 69(4), 1015–1026. mla: Priklopil, Tadeas, et al. “Evolutionarily Stable Mating Decisions for Sequentially Searching Females and the Stability of Reproductive Isolation by Assortative Mating.” Evolution, vol. 69, no. 4, Wiley, 2015, pp. 1015–26, doi:10.1111/evo.12618. short: T. Priklopil, E. Kisdi, M. Gyllenberg, Evolution 69 (2015) 1015–1026. date_created: 2018-12-11T11:54:21Z date_published: 2015-02-09T00:00:00Z date_updated: 2022-06-07T10:52:37Z day: '09' ddc: - '570' department: - _id: NiBa - _id: KrCh doi: 10.1111/evo.12618 ec_funded: 1 external_id: pmid: - '25662095' file: - access_level: open_access checksum: 1e8be0b1d7598a78cd2623d8ee8e7798 content_type: application/pdf creator: dernst date_created: 2020-05-15T09:05:34Z date_updated: 2020-07-14T12:45:19Z file_id: '7855' file_name: 2015_Evolution_Priklopil.pdf file_size: 967214 relation: main_file file_date_updated: 2020-07-14T12:45:19Z has_accepted_license: '1' intvolume: ' 69' issue: '4' language: - iso: eng month: '02' oa: 1 oa_version: Submitted Version page: 1015 - 1026 pmid: 1 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: Evolution publication_identifier: eissn: - 1558-5646 issn: - 0014-3820 publication_status: published publisher: Wiley publist_id: '5249' quality_controlled: '1' scopus_import: '1' status: public title: Evolutionarily stable mating decisions for sequentially searching females and the stability of reproductive isolation by assortative mating type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 69 year: '2015' ... --- _id: '1873' abstract: - lang: eng text: 'We consider partially observable Markov decision processes (POMDPs) with limit-average payoff, where a reward value in the interval [0,1] is associated with every transition, and the payoff of an infinite path is the long-run average of the rewards. We consider two types of path constraints: (i) a quantitative constraint defines the set of paths where the payoff is at least a given threshold λ1ε(0,1]; and (ii) a qualitative constraint which is a special case of the quantitative constraint with λ1=1. We consider the computation of the almost-sure winning set, where the controller needs to ensure that the path constraint is satisfied with probability 1. Our main results for qualitative path constraints are as follows: (i) the problem of deciding the existence of a finite-memory controller is EXPTIME-complete; and (ii) the problem of deciding the existence of an infinite-memory controller is undecidable. For quantitative path constraints we show that the problem of deciding the existence of a finite-memory controller is undecidable. We also present a prototype implementation of our EXPTIME algorithm and experimental results on several examples.' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik citation: ama: Chatterjee K, Chmelik M. POMDPs under probabilistic semantics. Artificial Intelligence. 2015;221:46-72. doi:10.1016/j.artint.2014.12.009 apa: Chatterjee, K., & Chmelik, M. (2015). POMDPs under probabilistic semantics. Artificial Intelligence. Elsevier. https://doi.org/10.1016/j.artint.2014.12.009 chicago: Chatterjee, Krishnendu, and Martin Chmelik. “POMDPs under Probabilistic Semantics.” Artificial Intelligence. Elsevier, 2015. https://doi.org/10.1016/j.artint.2014.12.009. ieee: K. Chatterjee and M. Chmelik, “POMDPs under probabilistic semantics,” Artificial Intelligence, vol. 221. Elsevier, pp. 46–72, 2015. ista: Chatterjee K, Chmelik M. 2015. POMDPs under probabilistic semantics. Artificial Intelligence. 221, 46–72. mla: Chatterjee, Krishnendu, and Martin Chmelik. “POMDPs under Probabilistic Semantics.” Artificial Intelligence, vol. 221, Elsevier, 2015, pp. 46–72, doi:10.1016/j.artint.2014.12.009. short: K. Chatterjee, M. Chmelik, Artificial Intelligence 221 (2015) 46–72. date_created: 2018-12-11T11:54:28Z date_published: 2015-04-01T00:00:00Z date_updated: 2021-01-12T06:53:46Z day: '01' department: - _id: KrCh doi: 10.1016/j.artint.2014.12.009 external_id: arxiv: - '1408.2058' intvolume: ' 221' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1408.2058 month: '04' oa: 1 oa_version: Preprint page: 46 - 72 publication: Artificial Intelligence publication_status: published publisher: Elsevier publist_id: '5224' quality_controlled: '1' scopus_import: 1 status: public title: POMDPs under probabilistic semantics type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 221 year: '2015' ... --- _id: '1882' abstract: - lang: eng text: We provide a framework for compositional and iterative design and verification of systems with quantitative information, such as rewards, time or energy. It is based on disjunctive modal transition systems where we allow actions to bear various types of quantitative information. Throughout the design process the actions can be further refined and the information made more precise. We show how to compute the results of standard operations on the systems, including the quotient (residual), which has not been previously considered for quantitative non-deterministic systems. Our quantitative framework has close connections to the modal nu-calculus and is compositional with respect to general notions of distances between systems and the standard operations. acknowledgement: This research was funded in part by the European Research Council (ERC) under grant agreement 267989 (QUAREM), by the Austrian Science Fund (FWF) project S11402-N23 (RiSE), and by the Czech Science Foundation, grant No. P202/12/G061. alternative_title: - LNCS author: - first_name: Uli full_name: Fahrenberg, Uli last_name: Fahrenberg - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Axel full_name: Legay, Axel last_name: Legay - first_name: Louis full_name: Traonouez, Louis last_name: Traonouez citation: ama: 'Fahrenberg U, Kretinsky J, Legay A, Traonouez L. Compositionality for quantitative specifications. In: Vol 8997. Springer; 2015:306-324. doi:10.1007/978-3-319-15317-9_19' apa: 'Fahrenberg, U., Kretinsky, J., Legay, A., & Traonouez, L. (2015). Compositionality for quantitative specifications (Vol. 8997, pp. 306–324). Presented at the FACS: Formal Aspects of Component Software, Bertinoro, Italy: Springer. https://doi.org/10.1007/978-3-319-15317-9_19' chicago: Fahrenberg, Uli, Jan Kretinsky, Axel Legay, and Louis Traonouez. “Compositionality for Quantitative Specifications,” 8997:306–24. Springer, 2015. https://doi.org/10.1007/978-3-319-15317-9_19. ieee: 'U. Fahrenberg, J. Kretinsky, A. Legay, and L. Traonouez, “Compositionality for quantitative specifications,” presented at the FACS: Formal Aspects of Component Software, Bertinoro, Italy, 2015, vol. 8997, pp. 306–324.' ista: 'Fahrenberg U, Kretinsky J, Legay A, Traonouez L. 2015. Compositionality for quantitative specifications. FACS: Formal Aspects of Component Software, LNCS, vol. 8997, 306–324.' mla: Fahrenberg, Uli, et al. Compositionality for Quantitative Specifications. Vol. 8997, Springer, 2015, pp. 306–24, doi:10.1007/978-3-319-15317-9_19. short: U. Fahrenberg, J. Kretinsky, A. Legay, L. Traonouez, in:, Springer, 2015, pp. 306–324. conference: end_date: 2014-09-12 location: Bertinoro, Italy name: 'FACS: Formal Aspects of Component Software' start_date: 2014-09-10 date_created: 2018-12-11T11:54:31Z date_published: 2015-01-30T00:00:00Z date_updated: 2021-01-12T06:53:49Z day: '30' department: - _id: ToHe - _id: KrCh doi: 10.1007/978-3-319-15317-9_19 ec_funded: 1 intvolume: ' 8997' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1408.1256 month: '01' oa: 1 oa_version: Preprint page: 306 - 324 project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publication_status: published publisher: Springer publist_id: '5216' quality_controlled: '1' scopus_import: 1 status: public title: Compositionality for quantitative specifications type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 8997 year: '2015' ... --- _id: '2034' abstract: - lang: eng text: Opacity is a generic security property, that has been defined on (non-probabilistic) transition systems and later on Markov chains with labels. For a secret predicate, given as a subset of runs, and a function describing the view of an external observer, the value of interest for opacity is a measure of the set of runs disclosing the secret. We extend this definition to the richer framework of Markov decision processes, where non-deterministicchoice is combined with probabilistic transitions, and we study related decidability problems with partial or complete observation hypotheses for the schedulers. We prove that all questions are decidable with complete observation and ω-regular secrets. With partial observation, we prove that all quantitative questions are undecidable but the question whether a system is almost surely non-opaquebecomes decidable for a restricted class of ω-regular secrets, as well as for all ω-regular secrets under finite-memory schedulers. author: - first_name: Béatrice full_name: Bérard, Béatrice last_name: Bérard - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Nathalie full_name: Sznajder, Nathalie last_name: Sznajder citation: ama: Bérard B, Chatterjee K, Sznajder N. Probabilistic opacity for Markov decision processes. Information Processing Letters. 2015;115(1):52-59. doi:10.1016/j.ipl.2014.09.001 apa: Bérard, B., Chatterjee, K., & Sznajder, N. (2015). Probabilistic opacity for Markov decision processes. Information Processing Letters. Elsevier. https://doi.org/10.1016/j.ipl.2014.09.001 chicago: Bérard, Béatrice, Krishnendu Chatterjee, and Nathalie Sznajder. “Probabilistic Opacity for Markov Decision Processes.” Information Processing Letters. Elsevier, 2015. https://doi.org/10.1016/j.ipl.2014.09.001. ieee: B. Bérard, K. Chatterjee, and N. Sznajder, “Probabilistic opacity for Markov decision processes,” Information Processing Letters, vol. 115, no. 1. Elsevier, pp. 52–59, 2015. ista: Bérard B, Chatterjee K, Sznajder N. 2015. Probabilistic opacity for Markov decision processes. Information Processing Letters. 115(1), 52–59. mla: Bérard, Béatrice, et al. “Probabilistic Opacity for Markov Decision Processes.” Information Processing Letters, vol. 115, no. 1, Elsevier, 2015, pp. 52–59, doi:10.1016/j.ipl.2014.09.001. short: B. Bérard, K. Chatterjee, N. Sznajder, Information Processing Letters 115 (2015) 52–59. date_created: 2018-12-11T11:55:20Z date_published: 2015-01-01T00:00:00Z date_updated: 2021-01-12T06:54:52Z day: '01' department: - _id: KrCh doi: 10.1016/j.ipl.2014.09.001 ec_funded: 1 intvolume: ' 115' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1407.4225 month: '01' oa: 1 oa_version: Preprint page: 52 - 59 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: ' Information Processing Letters' publication_status: published publisher: Elsevier publist_id: '5025' quality_controlled: '1' scopus_import: 1 status: public title: Probabilistic opacity for Markov decision processes type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 115 year: '2015' ... --- _id: '1598' abstract: - lang: eng text: 'We consider Markov decision processes (MDPs) with specifications given as Büchi (liveness) objectives, and examine the problem of computing the set of almost-sure winning vertices such that the objective can be ensured with probability 1 from these vertices. We study for the first time the average-case complexity of the classical algorithm for computing the set of almost-sure winning vertices for MDPs with Büchi objectives. Our contributions are as follows: First, we show that for MDPs with constant out-degree the expected number of iterations is at most logarithmic and the average-case running time is linear (as compared to the worst-case linear number of iterations and quadratic time complexity). Second, for the average-case analysis over all MDPs we show that the expected number of iterations is constant and the average-case running time is linear (again as compared to the worst-case linear number of iterations and quadratic time complexity). Finally we also show that when all MDPs are equally likely, the probability that the classical algorithm requires more than a constant number of iterations is exponentially small.' acknowledgement: "The research was supported by FWF Grant No. P 23499-N23, FWF NFN Grant No. S11407-N23 (RiSE), ERC Start Grant (279307: Graph Games), and the Microsoft Faculty Fellows Award. Nisarg Shah is also supported by NSF Grant CCF-1215883.\r\n" article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Manas full_name: Joglekar, Manas last_name: Joglekar - first_name: Nisarg full_name: Shah, Nisarg last_name: Shah citation: ama: Chatterjee K, Joglekar M, Shah N. Average case analysis of the classical algorithm for Markov decision processes with Büchi objectives. Theoretical Computer Science. 2015;573(3):71-89. doi:10.1016/j.tcs.2015.01.050 apa: Chatterjee, K., Joglekar, M., & Shah, N. (2015). Average case analysis of the classical algorithm for Markov decision processes with Büchi objectives. Theoretical Computer Science. Elsevier. https://doi.org/10.1016/j.tcs.2015.01.050 chicago: Chatterjee, Krishnendu, Manas Joglekar, and Nisarg Shah. “Average Case Analysis of the Classical Algorithm for Markov Decision Processes with Büchi Objectives.” Theoretical Computer Science. Elsevier, 2015. https://doi.org/10.1016/j.tcs.2015.01.050. ieee: K. Chatterjee, M. Joglekar, and N. Shah, “Average case analysis of the classical algorithm for Markov decision processes with Büchi objectives,” Theoretical Computer Science, vol. 573, no. 3. Elsevier, pp. 71–89, 2015. ista: Chatterjee K, Joglekar M, Shah N. 2015. Average case analysis of the classical algorithm for Markov decision processes with Büchi objectives. Theoretical Computer Science. 573(3), 71–89. mla: Chatterjee, Krishnendu, et al. “Average Case Analysis of the Classical Algorithm for Markov Decision Processes with Büchi Objectives.” Theoretical Computer Science, vol. 573, no. 3, Elsevier, 2015, pp. 71–89, doi:10.1016/j.tcs.2015.01.050. short: K. Chatterjee, M. Joglekar, N. Shah, Theoretical Computer Science 573 (2015) 71–89. date_created: 2018-12-11T11:52:56Z date_published: 2015-03-30T00:00:00Z date_updated: 2023-02-23T10:55:03Z day: '30' department: - _id: KrCh doi: 10.1016/j.tcs.2015.01.050 ec_funded: 1 external_id: arxiv: - '1202.4175' intvolume: ' 573' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1202.4175 month: '03' oa: 1 oa_version: Preprint page: 71 - 89 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Theoretical Computer Science publication_status: published publisher: Elsevier publist_id: '5571' quality_controlled: '1' related_material: record: - id: '2715' relation: earlier_version status: public scopus_import: 1 status: public title: Average case analysis of the classical algorithm for Markov decision processes with Büchi objectives type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 573 year: '2015' ... --- _id: '1731' abstract: - lang: eng text: 'We consider two-player zero-sum games on graphs. These games can be classified on the basis of the information of the players and on the mode of interaction between them. On the basis of information the classification is as follows: (a) partial-observation (both players have partial view of the game); (b) one-sided complete-observation (one player has complete observation); and (c) complete-observation (both players have complete view of the game). On the basis of mode of interaction we have the following classification: (a) concurrent (both players interact simultaneously); and (b) turn-based (both players interact in turn). The two sources of randomness in these games are randomness in transition function and randomness in strategies. In general, randomized strategies are more powerful than deterministic strategies, and randomness in transitions gives more general classes of games. In this work we present a complete characterization for the classes of games where randomness is not helpful in: (a) the transition function probabilistic transition can be simulated by deterministic transition); and (b) strategies (pure strategies are as powerful as randomized strategies). As consequence of our characterization we obtain new undecidability results for these games. ' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Laurent full_name: Doyen, Laurent last_name: Doyen - first_name: Hugo full_name: Gimbert, Hugo last_name: Gimbert - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 citation: ama: Chatterjee K, Doyen L, Gimbert H, Henzinger TA. Randomness for free. Information and Computation. 2015;245(12):3-16. doi:10.1016/j.ic.2015.06.003 apa: Chatterjee, K., Doyen, L., Gimbert, H., & Henzinger, T. A. (2015). Randomness for free. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2015.06.003 chicago: Chatterjee, Krishnendu, Laurent Doyen, Hugo Gimbert, and Thomas A Henzinger. “Randomness for Free.” Information and Computation. Elsevier, 2015. https://doi.org/10.1016/j.ic.2015.06.003. ieee: K. Chatterjee, L. Doyen, H. Gimbert, and T. A. Henzinger, “Randomness for free,” Information and Computation, vol. 245, no. 12. Elsevier, pp. 3–16, 2015. ista: Chatterjee K, Doyen L, Gimbert H, Henzinger TA. 2015. Randomness for free. Information and Computation. 245(12), 3–16. mla: Chatterjee, Krishnendu, et al. “Randomness for Free.” Information and Computation, vol. 245, no. 12, Elsevier, 2015, pp. 3–16, doi:10.1016/j.ic.2015.06.003. short: K. Chatterjee, L. Doyen, H. Gimbert, T.A. Henzinger, Information and Computation 245 (2015) 3–16. date_created: 2018-12-11T11:53:42Z date_published: 2015-12-01T00:00:00Z date_updated: 2023-02-23T11:45:42Z day: '01' department: - _id: KrCh - _id: ToHe doi: 10.1016/j.ic.2015.06.003 ec_funded: 1 intvolume: ' 245' issue: '12' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1006.0673 month: '12' oa: 1 oa_version: Preprint page: 3 - 16 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25EFB36C-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '215543' name: COMponent-Based Embedded Systems design Techniques - _id: 25F1337C-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '214373' name: Design for Embedded Systems - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publication: Information and Computation publication_status: published publisher: Elsevier publist_id: '5395' quality_controlled: '1' related_material: record: - id: '3856' relation: earlier_version status: public scopus_import: 1 status: public title: Randomness for free type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 245 year: '2015' ... --- _id: '1856' abstract: - lang: eng text: 'The traditional synthesis question given a specification asks for the automatic construction of a system that satisfies the specification, whereas often there exists a preference order among the different systems that satisfy the given specification. Under a probabilistic assumption about the possible inputs, such a preference order is naturally expressed by a weighted automaton, which assigns to each word a value, such that a system is preferred if it generates a higher expected value. We solve the following optimal synthesis problem: given an omega-regular specification, a Markov chain that describes the distribution of inputs, and a weighted automaton that measures how well a system satisfies the given specification under the input assumption, synthesize a system that optimizes the measured value. For safety specifications and quantitative measures that are defined by mean-payoff automata, the optimal synthesis problem reduces to finding a strategy in a Markov decision process (MDP) that is optimal for a long-run average reward objective, which can be achieved in polynomial time. For general omega-regular specifications along with mean-payoff automata, the solution rests on a new, polynomial-time algorithm for computing optimal strategies in MDPs with mean-payoff parity objectives. Our algorithm constructs optimal strategies that consist of two memoryless strategies and a counter. The counter is in general not bounded. To obtain a finite-state system, we show how to construct an ε-optimal strategy with a bounded counter, for all ε > 0. Furthermore, we show how to decide in polynomial time if it is possible to construct an optimal finite-state system (i.e., a system without a counter) for a given specification. We have implemented our approach and the underlying algorithms in a tool that takes qualitative and quantitative specifications and automatically constructs a system that satisfies the qualitative specification and optimizes the quantitative specification, if such a system exists. We present some experimental results showing optimal systems that were automatically generated in this way.' article_number: '9' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Barbara full_name: Jobstmann, Barbara last_name: Jobstmann - first_name: Rohit full_name: Singh, Rohit last_name: Singh citation: ama: Chatterjee K, Henzinger TA, Jobstmann B, Singh R. Measuring and synthesizing systems in probabilistic environments. Journal of the ACM. 2015;62(1). doi:10.1145/2699430 apa: Chatterjee, K., Henzinger, T. A., Jobstmann, B., & Singh, R. (2015). Measuring and synthesizing systems in probabilistic environments. Journal of the ACM. ACM. https://doi.org/10.1145/2699430 chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Barbara Jobstmann, and Rohit Singh. “Measuring and Synthesizing Systems in Probabilistic Environments.” Journal of the ACM. ACM, 2015. https://doi.org/10.1145/2699430. ieee: K. Chatterjee, T. A. Henzinger, B. Jobstmann, and R. Singh, “Measuring and synthesizing systems in probabilistic environments,” Journal of the ACM, vol. 62, no. 1. ACM, 2015. ista: Chatterjee K, Henzinger TA, Jobstmann B, Singh R. 2015. Measuring and synthesizing systems in probabilistic environments. Journal of the ACM. 62(1), 9. mla: Chatterjee, Krishnendu, et al. “Measuring and Synthesizing Systems in Probabilistic Environments.” Journal of the ACM, vol. 62, no. 1, 9, ACM, 2015, doi:10.1145/2699430. short: K. Chatterjee, T.A. Henzinger, B. Jobstmann, R. Singh, Journal of the ACM 62 (2015). date_created: 2018-12-11T11:54:23Z date_published: 2015-02-01T00:00:00Z date_updated: 2023-02-23T11:46:04Z day: '01' department: - _id: KrCh - _id: ToHe doi: 10.1145/2699430 ec_funded: 1 intvolume: ' 62' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1004.0739 month: '02' oa: 1 oa_version: Preprint project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Journal of the ACM publication_status: published publisher: ACM publist_id: '5244' quality_controlled: '1' related_material: record: - id: '3864' relation: earlier_version status: public scopus_import: 1 status: public title: Measuring and synthesizing systems in probabilistic environments type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 62 year: '2015' ... --- _id: '1661' abstract: - lang: eng text: The computation of the winning set for one-pair Streett objectives and for k-pair Streett objectives in (standard) graphs as well as in game graphs are central problems in computer-aided verification, with application to the verification of closed systems with strong fairness conditions, the verification of open systems, checking interface compatibility, well-formed ness of specifications, and the synthesis of reactive systems. We give faster algorithms for the computation of the winning set for (1) one-pair Streett objectives (aka parity-3 problem) in game graphs and (2) for k-pair Streett objectives in graphs. For both problems this represents the first improvement in asymptotic running time in 15 years. acknowledgement: 'K. C. is supported by the Austrian Science Fund (FWF): P23499-N23 and S11407-N23 (RiSE), an ERC Start Grant (279307: Graph Games), and a Microsoft Faculty Fellows Award. M. H. is supported by the Austrian Science Fund (FWF): P23499-N23 and the Vienna Science and Technology Fund (WWTF) grant ICT10-002. V. L. is supported by the Vienna Science and Technology Fund (WWTF) grant ICT10-002. The research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013) / ERC Grant Agreement no. 340506.' article_number: '7174888' article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Monika H full_name: Henzinger, Monika H id: 540c9bbd-f2de-11ec-812d-d04a5be85630 last_name: Henzinger orcid: 0000-0002-5008-6530 - first_name: Veronika full_name: Loitzenbauer, Veronika last_name: Loitzenbauer citation: ama: 'Chatterjee K, Henzinger MH, Loitzenbauer V. Improved algorithms for one-pair and k-pair Streett objectives. In: Proceedings - Symposium on Logic in Computer Science. Vol 2015-July. IEEE; 2015. doi:10.1109/LICS.2015.34' apa: 'Chatterjee, K., Henzinger, M. H., & Loitzenbauer, V. (2015). Improved algorithms for one-pair and k-pair Streett objectives. In Proceedings - Symposium on Logic in Computer Science (Vol. 2015–July). Kyoto, Japan: IEEE. https://doi.org/10.1109/LICS.2015.34' chicago: Chatterjee, Krishnendu, Monika H Henzinger, and Veronika Loitzenbauer. “Improved Algorithms for One-Pair and k-Pair Streett Objectives.” In Proceedings - Symposium on Logic in Computer Science, Vol. 2015–July. IEEE, 2015. https://doi.org/10.1109/LICS.2015.34. ieee: K. Chatterjee, M. H. Henzinger, and V. Loitzenbauer, “Improved algorithms for one-pair and k-pair Streett objectives,” in Proceedings - Symposium on Logic in Computer Science, Kyoto, Japan, 2015, vol. 2015–July. ista: 'Chatterjee K, Henzinger MH, Loitzenbauer V. 2015. Improved algorithms for one-pair and k-pair Streett objectives. Proceedings - Symposium on Logic in Computer Science. LICS: Logic in Computer Science vol. 2015–July, 7174888.' mla: Chatterjee, Krishnendu, et al. “Improved Algorithms for One-Pair and k-Pair Streett Objectives.” Proceedings - Symposium on Logic in Computer Science, vol. 2015–July, 7174888, IEEE, 2015, doi:10.1109/LICS.2015.34. short: K. Chatterjee, M.H. Henzinger, V. Loitzenbauer, in:, Proceedings - Symposium on Logic in Computer Science, IEEE, 2015. conference: end_date: 2015-07-10 location: Kyoto, Japan name: 'LICS: Logic in Computer Science' start_date: 2015-07-06 date_created: 2018-12-11T11:53:19Z date_published: 2015-07-01T00:00:00Z date_updated: 2023-02-23T12:20:05Z day: '01' department: - _id: KrCh doi: 10.1109/LICS.2015.34 ec_funded: 1 language: - iso: eng main_file_link: - open_access: '1' url: https://eprints.cs.univie.ac.at/4368/ month: '07' oa: 1 oa_version: Submitted Version project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Proceedings - Symposium on Logic in Computer Science publication_status: published publisher: IEEE publist_id: '5489' quality_controlled: '1' related_material: record: - id: '464' relation: later_version status: public scopus_import: '1' status: public title: Improved algorithms for one-pair and k-pair Streett objectives type: conference user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf volume: 2015-July year: '2015' ... --- _id: '523' abstract: - lang: eng text: We consider two-player games played on weighted directed graphs with mean-payoff and total-payoff objectives, two classical quantitative objectives. While for single-dimensional games the complexity and memory bounds for both objectives coincide, we show that in contrast to multi-dimensional mean-payoff games that are known to be coNP-complete, multi-dimensional total-payoff games are undecidable. We introduce conservative approximations of these objectives, where the payoff is considered over a local finite window sliding along a play, instead of the whole play. For single dimension, we show that (i) if the window size is polynomial, deciding the winner takes polynomial time, and (ii) the existence of a bounded window can be decided in NP ∩ coNP, and is at least as hard as solving mean-payoff games. For multiple dimensions, we show that (i) the problem with fixed window size is EXPTIME-complete, and (ii) there is no primitive-recursive algorithm to decide the existence of a bounded window. author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Laurent full_name: Doyen, Laurent last_name: Doyen - first_name: Mickael full_name: Randour, Mickael last_name: Randour - first_name: Jean full_name: Raskin, Jean last_name: Raskin citation: ama: Chatterjee K, Doyen L, Randour M, Raskin J. Looking at mean-payoff and total-payoff through windows. Information and Computation. 2015;242(6):25-52. doi:10.1016/j.ic.2015.03.010 apa: Chatterjee, K., Doyen, L., Randour, M., & Raskin, J. (2015). Looking at mean-payoff and total-payoff through windows. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2015.03.010 chicago: Chatterjee, Krishnendu, Laurent Doyen, Mickael Randour, and Jean Raskin. “Looking at Mean-Payoff and Total-Payoff through Windows.” Information and Computation. Elsevier, 2015. https://doi.org/10.1016/j.ic.2015.03.010. ieee: K. Chatterjee, L. Doyen, M. Randour, and J. Raskin, “Looking at mean-payoff and total-payoff through windows,” Information and Computation, vol. 242, no. 6. Elsevier, pp. 25–52, 2015. ista: Chatterjee K, Doyen L, Randour M, Raskin J. 2015. Looking at mean-payoff and total-payoff through windows. Information and Computation. 242(6), 25–52. mla: Chatterjee, Krishnendu, et al. “Looking at Mean-Payoff and Total-Payoff through Windows.” Information and Computation, vol. 242, no. 6, Elsevier, 2015, pp. 25–52, doi:10.1016/j.ic.2015.03.010. short: K. Chatterjee, L. Doyen, M. Randour, J. Raskin, Information and Computation 242 (2015) 25–52. date_created: 2018-12-11T11:46:57Z date_published: 2015-03-24T00:00:00Z date_updated: 2023-02-23T10:36:02Z day: '24' department: - _id: KrCh doi: 10.1016/j.ic.2015.03.010 ec_funded: 1 intvolume: ' 242' issue: '6' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1302.4248 month: '03' oa: 1 oa_version: Preprint page: 25 - 52 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Information and Computation publication_status: published publisher: Elsevier publist_id: '7296' quality_controlled: '1' related_material: record: - id: '2279' relation: earlier_version status: public scopus_import: 1 status: public title: Looking at mean-payoff and total-payoff through windows type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 242 year: '2015' ... --- _id: '524' abstract: - lang: eng text: 'We consider concurrent games played by two players on a finite-state graph, where in every round the players simultaneously choose a move, and the current state along with the joint moves determine the successor state. We study the most fundamental objective for concurrent games, namely, mean-payoff or limit-average objective, where a reward is associated to each transition, and the goal of player 1 is to maximize the long-run average of the rewards, and the objective of player 2 is strictly the opposite (i.e., the games are zero-sum). The path constraint for player 1 could be qualitative, i.e., the mean-payoff is the maximal reward, or arbitrarily close to it; or quantitative, i.e., a given threshold between the minimal and maximal reward. We consider the computation of the almost-sure (resp. positive) winning sets, where player 1 can ensure that the path constraint is satisfied with probability 1 (resp. positive probability). Almost-sure winning with qualitative constraint exactly corresponds to the question of whether there exists a strategy to ensure that the payoff is the maximal reward of the game. Our main results for qualitative path constraints are as follows: (1) we establish qualitative determinacy results that show that for every state either player 1 has a strategy to ensure almost-sure (resp. positive) winning against all player-2 strategies, or player 2 has a spoiling strategy to falsify almost-sure (resp. positive) winning against all player-1 strategies; (2) we present optimal strategy complexity results that precisely characterize the classes of strategies required for almost-sure and positive winning for both players; and (3) we present quadratic time algorithms to compute the almost-sure and the positive winning sets, matching the best known bound of the algorithms for much simpler problems (such as reachability objectives). For quantitative constraints we show that a polynomial time solution for the almost-sure or the positive winning set would imply a solution to a long-standing open problem (of solving the value problem of turn-based deterministic mean-payoff games) that is not known to be solvable in polynomial time.' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 citation: ama: Chatterjee K, Ibsen-Jensen R. Qualitative analysis of concurrent mean payoff games. Information and Computation. 2015;242(6):2-24. doi:10.1016/j.ic.2015.03.009 apa: Chatterjee, K., & Ibsen-Jensen, R. (2015). Qualitative analysis of concurrent mean payoff games. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2015.03.009 chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “Qualitative Analysis of Concurrent Mean Payoff Games.” Information and Computation. Elsevier, 2015. https://doi.org/10.1016/j.ic.2015.03.009. ieee: K. Chatterjee and R. Ibsen-Jensen, “Qualitative analysis of concurrent mean payoff games,” Information and Computation, vol. 242, no. 6. Elsevier, pp. 2–24, 2015. ista: Chatterjee K, Ibsen-Jensen R. 2015. Qualitative analysis of concurrent mean payoff games. Information and Computation. 242(6), 2–24. mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “Qualitative Analysis of Concurrent Mean Payoff Games.” Information and Computation, vol. 242, no. 6, Elsevier, 2015, pp. 2–24, doi:10.1016/j.ic.2015.03.009. short: K. Chatterjee, R. Ibsen-Jensen, Information and Computation 242 (2015) 2–24. date_created: 2018-12-11T11:46:57Z date_published: 2015-10-11T00:00:00Z date_updated: 2023-02-23T12:24:45Z day: '11' department: - _id: KrCh doi: 10.1016/j.ic.2015.03.009 external_id: arxiv: - '1409.5306' intvolume: ' 242' issue: '6' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1409.5306 month: '10' oa: 1 oa_version: Preprint page: 2 - 24 publication: Information and Computation publication_status: published publisher: Elsevier publist_id: '7295' quality_controlled: '1' related_material: record: - id: '5403' relation: earlier_version status: public scopus_import: 1 status: public title: Qualitative analysis of concurrent mean payoff games type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 242 year: '2015' ... --- _id: '1481' abstract: - lang: eng text: 'Simple board games, like Tic-Tac-Toe and CONNECT-4, play an important role not only in the development of mathematical and logical skills, but also in the emotional and social development. In this paper, we address the problem of generating targeted starting positions for such games. This can facilitate new approaches for bringing novice players to mastery, and also leads to discovery of interesting game variants. We present an approach that generates starting states of varying hardness levels for player 1 in a two-player board game, given rules of the board game, the desired number of steps required for player 1 to win, and the expertise levels of the two players. Our approach leverages symbolic methods and iterative simulation to efficiently search the extremely large state space. We present experimental results that include discovery of states of varying hardness levels for several simple grid-based board games. The presence of such states for standard game variants like 4×4 Tic-Tac-Toe opens up new games to be played that have never been played as the default start state is heavily biased. ' acknowledgement: "A Technical Report of this paper is available at: \r\nhttps://repository.ist.ac.at/id/eprint/146.\r\n" article_processing_charge: No author: - first_name: Umair full_name: Ahmed, Umair last_name: Ahmed - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Sumit full_name: Gulwani, Sumit last_name: Gulwani citation: ama: 'Ahmed U, Chatterjee K, Gulwani S. Automatic generation of alternative starting positions for simple traditional board games. In: Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence. Vol 2. AAAI Press; 2015:745-752.' apa: 'Ahmed, U., Chatterjee, K., & Gulwani, S. (2015). Automatic generation of alternative starting positions for simple traditional board games. In Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence (Vol. 2, pp. 745–752). Austin, TX, USA: AAAI Press.' chicago: Ahmed, Umair, Krishnendu Chatterjee, and Sumit Gulwani. “Automatic Generation of Alternative Starting Positions for Simple Traditional Board Games.” In Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence, 2:745–52. AAAI Press, 2015. ieee: U. Ahmed, K. Chatterjee, and S. Gulwani, “Automatic generation of alternative starting positions for simple traditional board games,” in Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence, Austin, TX, USA, 2015, vol. 2, pp. 745–752. ista: 'Ahmed U, Chatterjee K, Gulwani S. 2015. Automatic generation of alternative starting positions for simple traditional board games. Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence. AAAI: Conference on Artificial Intelligence vol. 2, 745–752.' mla: Ahmed, Umair, et al. “Automatic Generation of Alternative Starting Positions for Simple Traditional Board Games.” Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence, vol. 2, AAAI Press, 2015, pp. 745–52. short: U. Ahmed, K. Chatterjee, S. Gulwani, in:, Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence, AAAI Press, 2015, pp. 745–752. conference: end_date: 2015-01-30 location: Austin, TX, USA name: 'AAAI: Conference on Artificial Intelligence' start_date: 2015-01-25 date_created: 2018-12-11T11:52:16Z date_published: 2015-01-01T00:00:00Z date_updated: 2023-02-23T12:25:07Z day: '01' department: - _id: KrCh ec_funded: 1 intvolume: ' 2' language: - iso: eng main_file_link: - open_access: '1' url: https://www.aaai.org/ocs/index.php/AAAI/AAAI15/paper/download/9523/9300 month: '01' oa: 1 oa_version: None page: 745 - 752 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence publication_status: published publisher: AAAI Press publist_id: '5713' quality_controlled: '1' related_material: record: - id: '5410' relation: earlier_version status: public scopus_import: 1 status: public title: Automatic generation of alternative starting positions for simple traditional board games type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 2 year: '2015' ... --- _id: '1732' abstract: - lang: eng text: We consider partially observable Markov decision processes (POMDPs), that are a standard framework for robotics applications to model uncertainties present in the real world, with temporal logic specifications. All temporal logic specifications in linear-time temporal logic (LTL) can be expressed as parity objectives. We study the qualitative analysis problem for POMDPs with parity objectives that asks whether there is a controller (policy) to ensure that the objective holds with probability 1 (almost-surely). While the qualitative analysis of POMDPs with parity objectives is undecidable, recent results show that when restricted to finite-memory policies the problem is EXPTIME-complete. While the problem is intractable in theory, we present a practical approach to solve the qualitative analysis problem. We designed several heuristics to deal with the exponential complexity, and have used our implementation on a number of well-known POMDP examples for robotics applications. Our results provide the first practical approach to solve the qualitative analysis of robot motion planning with LTL properties in the presence of uncertainty. author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Raghav full_name: Gupta, Raghav last_name: Gupta - first_name: Ayush full_name: Kanodia, Ayush last_name: Kanodia citation: ama: 'Chatterjee K, Chmelik M, Gupta R, Kanodia A. Qualitative analysis of POMDPs with temporal logic specifications for robotics applications. In: IEEE; 2015:325-330. doi:10.1109/ICRA.2015.7139019' apa: 'Chatterjee, K., Chmelik, M., Gupta, R., & Kanodia, A. (2015). Qualitative analysis of POMDPs with temporal logic specifications for robotics applications (pp. 325–330). Presented at the ICRA: International Conference on Robotics and Automation, Seattle, WA, United States: IEEE. https://doi.org/10.1109/ICRA.2015.7139019' chicago: Chatterjee, Krishnendu, Martin Chmelik, Raghav Gupta, and Ayush Kanodia. “Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications,” 325–30. IEEE, 2015. https://doi.org/10.1109/ICRA.2015.7139019. ieee: 'K. Chatterjee, M. Chmelik, R. Gupta, and A. Kanodia, “Qualitative analysis of POMDPs with temporal logic specifications for robotics applications,” presented at the ICRA: International Conference on Robotics and Automation, Seattle, WA, United States, 2015, pp. 325–330.' ista: 'Chatterjee K, Chmelik M, Gupta R, Kanodia A. 2015. Qualitative analysis of POMDPs with temporal logic specifications for robotics applications. ICRA: International Conference on Robotics and Automation, 325–330.' mla: Chatterjee, Krishnendu, et al. Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications. IEEE, 2015, pp. 325–30, doi:10.1109/ICRA.2015.7139019. short: K. Chatterjee, M. Chmelik, R. Gupta, A. Kanodia, in:, IEEE, 2015, pp. 325–330. conference: end_date: 2015-05-30 location: Seattle, WA, United States name: 'ICRA: International Conference on Robotics and Automation' start_date: 2015-05-26 date_created: 2018-12-11T11:53:43Z date_published: 2015-01-01T00:00:00Z date_updated: 2023-02-23T12:25:52Z day: '01' department: - _id: KrCh doi: 10.1109/ICRA.2015.7139019 ec_funded: 1 external_id: arxiv: - '1409.3360' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1409.3360 month: '01' oa: 1 oa_version: Preprint page: 325 - 330 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_status: published publisher: IEEE publist_id: '5394' quality_controlled: '1' related_material: record: - id: '5424' relation: earlier_version status: public - id: '5426' relation: earlier_version status: public scopus_import: 1 status: public title: Qualitative analysis of POMDPs with temporal logic specifications for robotics applications type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '5431' abstract: - lang: eng text: "We consider finite-state concurrent stochastic games, played by k>=2 players for an infinite number of rounds, where in every round, each player simultaneously and independently of the other players chooses an action, whereafter the successor state is determined by a probability distribution given by the current state and the chosen actions. We consider reachability objectives that given a target set of states require that some state in the target set is visited, and the dual safety objectives that given a target set require that only states in the target set are visited. We are interested in the complexity of stationary strategies measured by their patience, which is defined as the inverse of the smallest non-zero probability employed.\r\n\r\n Our main results are as follows: We show that in two-player zero-sum concurrent stochastic games (with reachability objective for one player and the complementary safety objective for the other player): (i) the optimal bound on the patience of optimal and epsilon-optimal strategies, for both players is doubly exponential; and (ii) even in games with a single non-absorbing state exponential (in the number of actions) patience is necessary. In general we study the class of non-zero-sum games admitting epsilon-Nash equilibria. We show that if there is at least one player with reachability objective, then doubly-exponential patience is needed in general for epsilon-Nash equilibrium strategies, whereas in contrast if all players have safety objectives, then the optimal bound on patience for epsilon-Nash equilibrium strategies is only exponential." alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Kristoffer full_name: Hansen, Kristoffer last_name: Hansen citation: ama: Chatterjee K, Ibsen-Jensen R, Hansen K. The Patience of Concurrent Stochastic Games with Safety and Reachability Objectives. IST Austria; 2015. doi:10.15479/AT:IST-2015-322-v1-1 apa: Chatterjee, K., Ibsen-Jensen, R., & Hansen, K. (2015). The patience of concurrent stochastic games with safety and reachability objectives. IST Austria. https://doi.org/10.15479/AT:IST-2015-322-v1-1 chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Kristoffer Hansen. The Patience of Concurrent Stochastic Games with Safety and Reachability Objectives. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-322-v1-1. ieee: K. Chatterjee, R. Ibsen-Jensen, and K. Hansen, The patience of concurrent stochastic games with safety and reachability objectives. IST Austria, 2015. ista: Chatterjee K, Ibsen-Jensen R, Hansen K. 2015. The patience of concurrent stochastic games with safety and reachability objectives, IST Austria, 25p. mla: Chatterjee, Krishnendu, et al. The Patience of Concurrent Stochastic Games with Safety and Reachability Objectives. IST Austria, 2015, doi:10.15479/AT:IST-2015-322-v1-1. short: K. Chatterjee, R. Ibsen-Jensen, K. Hansen, The Patience of Concurrent Stochastic Games with Safety and Reachability Objectives, IST Austria, 2015. date_created: 2018-12-12T11:39:17Z date_published: 2015-02-19T00:00:00Z date_updated: 2021-01-12T08:02:13Z day: '19' ddc: - '005' - '519' department: - _id: KrCh doi: 10.15479/AT:IST-2015-322-v1-1 file: - access_level: open_access checksum: bfb858262c30445b8e472c40069178a2 content_type: application/pdf creator: system date_created: 2018-12-12T11:53:31Z date_updated: 2020-07-14T12:46:53Z file_id: '5491' file_name: IST-2015-322-v1+1_safetygames.pdf file_size: 661015 relation: main_file file_date_updated: 2020-07-14T12:46:53Z has_accepted_license: '1' language: - iso: eng month: '02' oa: 1 oa_version: Published Version page: '25' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '322' status: public title: The patience of concurrent stochastic games with safety and reachability objectives type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '1657' abstract: - lang: eng text: 'We consider Markov decision processes (MDPs) with multiple limit-average (or mean-payoff) objectives. There exist two different views: (i) ~the expectation semantics, where the goal is to optimize the expected mean-payoff objective, and (ii) ~the satisfaction semantics, where the goal is to maximize the probability of runs such that the mean-payoff value stays above a given vector. We consider optimization with respect to both objectives at once, thus unifying the existing semantics. Precisely, the goal is to optimize the expectation while ensuring the satisfaction constraint. Our problem captures the notion of optimization with respect to strategies that are risk-averse (i.e., Ensure certain probabilistic guarantee). Our main results are as follows: First, we present algorithms for the decision problems, which are always polynomial in the size of the MDP. We also show that an approximation of the Pareto curve can be computed in time polynomial in the size of the MDP, and the approximation factor, but exponential in the number of dimensions. Second, we present a complete characterization of the strategy complexity (in terms of memory bounds and randomization) required to solve our problem. ' acknowledgement: "A Technical Report of this paper is available at: https://repository.ist.ac.at/327\r\n" alternative_title: - LICS author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Zuzana full_name: Komárková, Zuzana last_name: Komárková - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 citation: ama: Chatterjee K, Komárková Z, Kretinsky J. Unifying two views on multiple mean-payoff objectives in Markov decision processes. 2015:244-256. doi:10.1109/LICS.2015.32 apa: 'Chatterjee, K., Komárková, Z., & Kretinsky, J. (2015). Unifying two views on multiple mean-payoff objectives in Markov decision processes. Presented at the LICS: Logic in Computer Science, Kyoto, Japan: IEEE. https://doi.org/10.1109/LICS.2015.32' chicago: Chatterjee, Krishnendu, Zuzana Komárková, and Jan Kretinsky. “Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes.” LICS. IEEE, 2015. https://doi.org/10.1109/LICS.2015.32. ieee: K. Chatterjee, Z. Komárková, and J. Kretinsky, “Unifying two views on multiple mean-payoff objectives in Markov decision processes.” IEEE, pp. 244–256, 2015. ista: Chatterjee K, Komárková Z, Kretinsky J. 2015. Unifying two views on multiple mean-payoff objectives in Markov decision processes. , 244–256. mla: Chatterjee, Krishnendu, et al. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IEEE, 2015, pp. 244–56, doi:10.1109/LICS.2015.32. short: K. Chatterjee, Z. Komárková, J. Kretinsky, (2015) 244–256. conference: end_date: 2015-07-10 location: Kyoto, Japan name: 'LICS: Logic in Computer Science' start_date: 2015-07-06 date_created: 2018-12-11T11:53:18Z date_published: 2015-07-01T00:00:00Z date_updated: 2023-02-23T12:26:16Z day: '01' department: - _id: KrCh - _id: ToHe doi: 10.1109/LICS.2015.32 ec_funded: 1 language: - iso: eng month: '07' oa_version: None page: 244 - 256 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_status: published publisher: IEEE publist_id: '5493' quality_controlled: '1' related_material: record: - id: '466' relation: later_version status: public - id: '5429' relation: earlier_version status: public - id: '5435' relation: earlier_version status: public scopus_import: 1 series_title: LICS status: public title: Unifying two views on multiple mean-payoff objectives in Markov decision processes type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '1656' abstract: - lang: eng text: Recently there has been a significant effort to handle quantitative properties in formal verification and synthesis. While weighted automata over finite and infinite words provide a natural and flexible framework to express quantitative properties, perhaps surprisingly, some basic system properties such as average response time cannot be expressed using weighted automata, nor in any other know decidable formalism. In this work, we introduce nested weighted automata as a natural extension of weighted automata which makes it possible to express important quantitative properties such as average response time. In nested weighted automata, a master automaton spins off and collects results from weighted slave automata, each of which computes a quantity along a finite portion of an infinite word. Nested weighted automata can be viewed as the quantitative analogue of monitor automata, which are used in run-time verification. We establish an almost complete decidability picture for the basic decision problems about nested weighted automata, and illustrate their applicability in several domains. In particular, nested weighted automata can be used to decide average response time properties. acknowledgement: "This research was funded in part by the European Research Council (ERC) under grant agreement 267989 (QUAREM), by the Austrian Science Fund (FWF) projects S11402-N23 (RiSE), Z211-N23 (Wittgenstein Award), FWF Grant No P23499- N23, FWF NFN Grant No S11407-N23 (RiSE), ERC Start grant (279307: Graph Games), and Microsoft faculty fellows award.\r\nA Technical Report of the paper is available at: \r\nhttps://repository.ist.ac.at/331/\r\n" article_number: '7174926' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Jan full_name: Otop, Jan id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87 last_name: Otop citation: ama: 'Chatterjee K, Henzinger TA, Otop J. Nested weighted automata. In: Proceedings - Symposium on Logic in Computer Science. Vol 2015-July. IEEE; 2015. doi:10.1109/LICS.2015.72' apa: 'Chatterjee, K., Henzinger, T. A., & Otop, J. (2015). Nested weighted automata. In Proceedings - Symposium on Logic in Computer Science (Vol. 2015–July). Kyoto, Japan: IEEE. https://doi.org/10.1109/LICS.2015.72' chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Nested Weighted Automata.” In Proceedings - Symposium on Logic in Computer Science, Vol. 2015–July. IEEE, 2015. https://doi.org/10.1109/LICS.2015.72. ieee: K. Chatterjee, T. A. Henzinger, and J. Otop, “Nested weighted automata,” in Proceedings - Symposium on Logic in Computer Science, Kyoto, Japan, 2015, vol. 2015–July. ista: 'Chatterjee K, Henzinger TA, Otop J. 2015. Nested weighted automata. Proceedings - Symposium on Logic in Computer Science. LICS: Logic in Computer Science vol. 2015–July, 7174926.' mla: Chatterjee, Krishnendu, et al. “Nested Weighted Automata.” Proceedings - Symposium on Logic in Computer Science, vol. 2015–July, 7174926, IEEE, 2015, doi:10.1109/LICS.2015.72. short: K. Chatterjee, T.A. Henzinger, J. Otop, in:, Proceedings - Symposium on Logic in Computer Science, IEEE, 2015. conference: end_date: 2015-07-10 location: Kyoto, Japan name: 'LICS: Logic in Computer Science' start_date: 2015-07-06 date_created: 2018-12-11T11:53:17Z date_published: 2015-07-31T00:00:00Z date_updated: 2023-02-23T12:26:19Z day: '31' department: - _id: KrCh - _id: ToHe doi: 10.1109/LICS.2015.72 ec_funded: 1 external_id: arxiv: - '1606.03598' language: - iso: eng month: '07' oa_version: None project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Proceedings - Symposium on Logic in Computer Science publication_status: published publisher: IEEE publist_id: '5494' quality_controlled: '1' related_material: record: - id: '467' relation: later_version status: public - id: '5415' relation: earlier_version status: public - id: '5436' relation: earlier_version status: public scopus_import: 1 status: public title: Nested weighted automata type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 2015-July year: '2015' ... --- _id: '5429' abstract: - lang: eng text: "We consider Markov decision processes (MDPs) with multiple limit-average (or mean-payoff) objectives. \r\nThere have been two different views: (i) the expectation semantics, where the goal is to optimize the expected mean-payoff objective, and (ii) the satisfaction semantics, where the goal is to maximize the probability of runs such that the mean-payoff value stays above a given vector. \ \r\nWe consider the problem where the goal is to optimize the expectation under the constraint that the satisfaction semantics is ensured, and thus consider a generalization that unifies the existing semantics.\r\nOur problem captures the notion of optimization with respect to strategies that are risk-averse (i.e., ensures certain probabilistic guarantee).\r\nOur main results are algorithms for the decision problem which are always polynomial in the size of the MDP. We also show that an approximation of the Pareto-curve can be computed in time polynomial in the size of the MDP, and the approximation factor, but exponential in the number of dimensions.\r\nFinally, we present a complete characterization of the strategy complexity (in terms of memory bounds and randomization) required to solve our problem." alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Zuzana full_name: Komarkova, Zuzana last_name: Komarkova - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 citation: ama: Chatterjee K, Komarkova Z, Kretinsky J. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria; 2015. doi:10.15479/AT:IST-2015-318-v1-1 apa: Chatterjee, K., Komarkova, Z., & Kretinsky, J. (2015). Unifying two views on multiple mean-payoff objectives in Markov decision processes. IST Austria. https://doi.org/10.15479/AT:IST-2015-318-v1-1 chicago: Chatterjee, Krishnendu, Zuzana Komarkova, and Jan Kretinsky. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-318-v1-1. ieee: K. Chatterjee, Z. Komarkova, and J. Kretinsky, Unifying two views on multiple mean-payoff objectives in Markov decision processes. IST Austria, 2015. ista: Chatterjee K, Komarkova Z, Kretinsky J. 2015. Unifying two views on multiple mean-payoff objectives in Markov decision processes, IST Austria, 41p. mla: Chatterjee, Krishnendu, et al. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria, 2015, doi:10.15479/AT:IST-2015-318-v1-1. short: K. Chatterjee, Z. Komarkova, J. Kretinsky, Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes, IST Austria, 2015. date_created: 2018-12-12T11:39:17Z date_published: 2015-01-12T00:00:00Z date_updated: 2023-02-23T12:26:16Z day: '12' ddc: - '004' department: - _id: KrCh doi: 10.15479/AT:IST-2015-318-v1-1 file: - access_level: open_access checksum: e4869a584567c506349abda9c8ec7db3 content_type: application/pdf creator: system date_created: 2018-12-12T11:54:11Z date_updated: 2020-07-14T12:46:52Z file_id: '5533' file_name: IST-2015-318-v1+1_main.pdf file_size: 689863 relation: main_file file_date_updated: 2020-07-14T12:46:52Z has_accepted_license: '1' language: - iso: eng month: '01' oa: 1 oa_version: Published Version page: '41' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '318' related_material: record: - id: '1657' relation: later_version status: public - id: '466' relation: later_version status: public - id: '5435' relation: later_version status: public status: public title: Unifying two views on multiple mean-payoff objectives in Markov decision processes type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '5435' abstract: - lang: eng text: "We consider Markov decision processes (MDPs) with multiple limit-average (or mean-payoff) objectives. \r\nThere have been two different views: (i) the expectation semantics, where the goal is to optimize the expected mean-payoff objective, and (ii) the satisfaction semantics, where the goal is to maximize the probability of runs such that the mean-payoff value stays above a given vector. \ \r\nWe consider the problem where the goal is to optimize the expectation under the constraint that the satisfaction semantics is ensured, and thus consider a generalization that unifies the existing semantics. Our problem captures the notion of optimization with respect to strategies that are risk-averse (i.e., ensures certain probabilistic guarantee).\r\nOur main results are algorithms for the decision problem which are always polynomial in the size of the MDP.\r\nWe also show that an approximation of the Pareto-curve can be computed in time polynomial in the size of the MDP, and the approximation factor, but exponential in the number of dimensions. Finally, we present a complete characterization of the strategy complexity (in terms of memory bounds and randomization) required to solve our problem." alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Zuzana full_name: Komarkova, Zuzana last_name: Komarkova - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 citation: ama: Chatterjee K, Komarkova Z, Kretinsky J. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria; 2015. doi:10.15479/AT:IST-2015-318-v2-1 apa: Chatterjee, K., Komarkova, Z., & Kretinsky, J. (2015). Unifying two views on multiple mean-payoff objectives in Markov decision processes. IST Austria. https://doi.org/10.15479/AT:IST-2015-318-v2-1 chicago: Chatterjee, Krishnendu, Zuzana Komarkova, and Jan Kretinsky. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-318-v2-1. ieee: K. Chatterjee, Z. Komarkova, and J. Kretinsky, Unifying two views on multiple mean-payoff objectives in Markov decision processes. IST Austria, 2015. ista: Chatterjee K, Komarkova Z, Kretinsky J. 2015. Unifying two views on multiple mean-payoff objectives in Markov decision processes, IST Austria, 51p. mla: Chatterjee, Krishnendu, et al. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria, 2015, doi:10.15479/AT:IST-2015-318-v2-1. short: K. Chatterjee, Z. Komarkova, J. Kretinsky, Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes, IST Austria, 2015. date_created: 2018-12-12T11:39:19Z date_published: 2015-02-23T00:00:00Z date_updated: 2023-02-23T12:26:00Z day: '23' ddc: - '004' department: - _id: KrCh doi: 10.15479/AT:IST-2015-318-v2-1 file: - access_level: open_access checksum: 75284adec80baabdfe71ff9ebbc27445 content_type: application/pdf creator: system date_created: 2018-12-12T11:54:03Z date_updated: 2020-07-14T12:46:53Z file_id: '5525' file_name: IST-2015-318-v2+1_main.pdf file_size: 717630 relation: main_file file_date_updated: 2020-07-14T12:46:53Z has_accepted_license: '1' language: - iso: eng month: '02' oa: 1 oa_version: Published Version page: '51' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '327' related_material: record: - id: '1657' relation: later_version status: public - id: '466' relation: later_version status: public - id: '5429' relation: earlier_version status: public status: public title: Unifying two views on multiple mean-payoff objectives in Markov decision processes type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '5436' abstract: - lang: eng text: "Recently there has been a significant effort to handle quantitative properties in formal verification and synthesis. While weighted automata over finite and infinite words provide a natural and flexible framework to express quantitative properties, perhaps surprisingly, some basic system properties such as average response time cannot be expressed using weighted automata, nor in any other know decidable formalism. In this work, we introduce nested weighted automata as a natural extension of weighted automata which makes it possible to express important quantitative properties such as average response time.\r\nIn nested weighted automata, a master automaton spins off and collects results from weighted slave automata, each of which computes a quantity along a finite portion of an infinite word. Nested weighted automata can be viewed as the quantitative analogue of monitor automata, which are used in run-time verification. We establish an almost complete decidability picture for the basic decision problems about nested weighted automata, and illustrate their applicability in several domains. In particular, nested weighted automata can be used to decide average response time properties." alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Jan full_name: Otop, Jan id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87 last_name: Otop citation: ama: Chatterjee K, Henzinger TA, Otop J. Nested Weighted Automata. IST Austria; 2015. doi:10.15479/AT:IST-2015-170-v2-2 apa: Chatterjee, K., Henzinger, T. A., & Otop, J. (2015). Nested weighted automata. IST Austria. https://doi.org/10.15479/AT:IST-2015-170-v2-2 chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. Nested Weighted Automata. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-170-v2-2. ieee: K. Chatterjee, T. A. Henzinger, and J. Otop, Nested weighted automata. IST Austria, 2015. ista: Chatterjee K, Henzinger TA, Otop J. 2015. Nested weighted automata, IST Austria, 29p. mla: Chatterjee, Krishnendu, et al. Nested Weighted Automata. IST Austria, 2015, doi:10.15479/AT:IST-2015-170-v2-2. short: K. Chatterjee, T.A. Henzinger, J. Otop, Nested Weighted Automata, IST Austria, 2015. date_created: 2018-12-12T11:39:19Z date_published: 2015-04-24T00:00:00Z date_updated: 2023-02-23T12:25:21Z day: '24' ddc: - '000' department: - _id: KrCh - _id: ToHe doi: 10.15479/AT:IST-2015-170-v2-2 file: - access_level: open_access checksum: 3c402f47d3669c28d04d1af405a08e3f content_type: application/pdf creator: system date_created: 2018-12-12T11:54:19Z date_updated: 2020-07-14T12:46:54Z file_id: '5541' file_name: IST-2015-170-v2+2_report.pdf file_size: 569991 relation: main_file file_date_updated: 2020-07-14T12:46:54Z has_accepted_license: '1' language: - iso: eng month: '04' oa: 1 oa_version: Published Version page: '29' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '331' related_material: record: - id: '1656' relation: later_version status: public - id: '467' relation: later_version status: public - id: '5415' relation: earlier_version status: public status: public title: Nested weighted automata type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '1610' abstract: - lang: eng text: The edit distance between two words w1, w2 is the minimal number of word operations (letter insertions, deletions, and substitutions) necessary to transform w1 to w2. The edit distance generalizes to languages L1,L2, where the edit distance is the minimal number k such that for every word from L1 there exists a word in L2 with edit distance at most k. We study the edit distance computation problem between pushdown automata and their subclasses. The problem of computing edit distance to pushdown automata is undecidable, and in practice, the interesting question is to compute the edit distance from a pushdown automaton (the implementation, a standard model for programs with recursion) to a regular language (the specification). In this work, we present a complete picture of decidability and complexity for deciding whether, for a given threshold k, the edit distance from a pushdown automaton to a finite automaton is at most k. alternative_title: - LNCS article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Jan full_name: Otop, Jan id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87 last_name: Otop citation: ama: 'Chatterjee K, Henzinger TA, Ibsen-Jensen R, Otop J. Edit distance for pushdown automata. In: 42nd International Colloquium. Vol 9135. Springer Nature; 2015:121-133. doi:10.1007/978-3-662-47666-6_10' apa: 'Chatterjee, K., Henzinger, T. A., Ibsen-Jensen, R., & Otop, J. (2015). Edit distance for pushdown automata. In 42nd International Colloquium (Vol. 9135, pp. 121–133). Kyoto, Japan: Springer Nature. https://doi.org/10.1007/978-3-662-47666-6_10' chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Rasmus Ibsen-Jensen, and Jan Otop. “Edit Distance for Pushdown Automata.” In 42nd International Colloquium, 9135:121–33. Springer Nature, 2015. https://doi.org/10.1007/978-3-662-47666-6_10. ieee: K. Chatterjee, T. A. Henzinger, R. Ibsen-Jensen, and J. Otop, “Edit distance for pushdown automata,” in 42nd International Colloquium, Kyoto, Japan, 2015, vol. 9135, no. Part II, pp. 121–133. ista: 'Chatterjee K, Henzinger TA, Ibsen-Jensen R, Otop J. 2015. Edit distance for pushdown automata. 42nd International Colloquium. ICALP: Automata, Languages and Programming, LNCS, vol. 9135, 121–133.' mla: Chatterjee, Krishnendu, et al. “Edit Distance for Pushdown Automata.” 42nd International Colloquium, vol. 9135, no. Part II, Springer Nature, 2015, pp. 121–33, doi:10.1007/978-3-662-47666-6_10. short: K. Chatterjee, T.A. Henzinger, R. Ibsen-Jensen, J. Otop, in:, 42nd International Colloquium, Springer Nature, 2015, pp. 121–133. conference: end_date: 2015-07-10 location: Kyoto, Japan name: 'ICALP: Automata, Languages and Programming' start_date: 2015-07-06 date_created: 2018-12-11T11:53:01Z date_published: 2015-07-01T00:00:00Z date_updated: 2023-02-23T12:26:24Z day: '01' department: - _id: KrCh - _id: ToHe doi: 10.1007/978-3-662-47666-6_10 ec_funded: 1 external_id: arxiv: - '1504.08259' intvolume: ' 9135' issue: Part II language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1504.08259 month: '07' oa: 1 oa_version: None page: 121 - 133 project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publication: 42nd International Colloquium publication_identifier: isbn: - 978-3-662-47665-9 publication_status: published publisher: Springer Nature publist_id: '5556' pubrep_id: '321' quality_controlled: '1' related_material: record: - id: '465' relation: later_version status: public - id: '5438' relation: earlier_version status: public scopus_import: '1' status: public title: Edit distance for pushdown automata type: conference user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 volume: 9135 year: '2015' ... --- _id: '5437' abstract: - lang: eng text: "We consider the core algorithmic problems related to verification of systems with respect to three classical quantitative properties, namely, the mean-payoff property, the ratio property, and the minimum initial credit for energy property. \r\nThe algorithmic problem given a graph and a quantitative property asks to compute the optimal value (the infimum value over all traces) from every node of the graph. We consider graphs with constant treewidth, and it is well-known that the control-flow graphs of most programs have constant treewidth. Let $n$ denote the number of nodes of a graph, $m$ the number of edges (for constant treewidth graphs $m=O(n)$) and $W$ the largest absolute value of the weights.\r\nOur main theoretical results are as follows.\r\nFirst, for constant treewidth graphs we present an algorithm that approximates the mean-payoff value within a multiplicative factor of $\\epsilon$ in time $O(n \\cdot \\log (n/\\epsilon))$ and linear space, as compared to the classical algorithms that require quadratic time. Second, for the ratio property we present an algorithm that for constant treewidth graphs works in time $O(n \\cdot \\log (|a\\cdot b|))=O(n\\cdot\\log (n\\cdot W))$, when the output is $\\frac{a}{b}$, as compared to the previously best known algorithm with running time $O(n^2 \\cdot \\log (n\\cdot W))$. Third, for the minimum initial credit problem we show that (i)~for general graphs the problem can be solved in $O(n^2\\cdot m)$ time and the associated decision problem can be solved in $O(n\\cdot m)$ time, improving the previous known $O(n^3\\cdot m\\cdot \\log (n\\cdot W))$ and $O(n^2 \\cdot m)$ bounds, respectively; and (ii)~for constant treewidth graphs we present an algorithm that requires $O(n\\cdot \\log n)$ time, improving the previous known $O(n^4 \\cdot \\log (n \\cdot W))$ bound.\r\nWe have implemented some of our algorithms and show that they present a significant speedup on standard benchmarks. " alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs. IST Austria; 2015. doi:10.15479/AT:IST-2015-330-v2-1 apa: Chatterjee, K., Ibsen-Jensen, R., & Pavlogiannis, A. (2015). Faster algorithms for quantitative verification in constant treewidth graphs. IST Austria. https://doi.org/10.15479/AT:IST-2015-330-v2-1 chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis. Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-330-v2-1. ieee: K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, Faster algorithms for quantitative verification in constant treewidth graphs. IST Austria, 2015. ista: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2015. Faster algorithms for quantitative verification in constant treewidth graphs, IST Austria, 27p. mla: Chatterjee, Krishnendu, et al. Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs. IST Austria, 2015, doi:10.15479/AT:IST-2015-330-v2-1. short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs, IST Austria, 2015. date_created: 2018-12-12T11:39:19Z date_published: 2015-04-27T00:00:00Z date_updated: 2023-02-23T12:26:05Z day: '27' ddc: - '000' department: - _id: KrCh doi: 10.15479/AT:IST-2015-330-v2-1 file: - access_level: open_access checksum: f5917c20f84018b362d385c000a2e123 content_type: application/pdf creator: system date_created: 2018-12-12T11:53:12Z date_updated: 2020-07-14T12:46:54Z file_id: '5473' file_name: IST-2015-330-v2+1_main.pdf file_size: 1072137 relation: main_file file_date_updated: 2020-07-14T12:46:54Z has_accepted_license: '1' language: - iso: eng month: '04' oa: 1 oa_version: Published Version page: '27' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '333' related_material: record: - id: '1607' relation: later_version status: public - id: '5430' relation: earlier_version status: public status: public title: Faster algorithms for quantitative verification in constant treewidth graphs type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '5430' abstract: - lang: eng text: We consider the core algorithmic problems related to verification of systems with respect to three classical quantitative properties, namely, the mean- payoff property, the ratio property, and the minimum initial credit for energy property. The algorithmic problem given a graph and a quantitative property asks to compute the optimal value (the infimum value over all traces) from every node of the graph. We consider graphs with constant treewidth, and it is well-known that the control-flow graphs of most programs have constant treewidth. Let n denote the number of nodes of a graph, m the number of edges (for constant treewidth graphs m = O ( n ) ) and W the largest absolute value of the weights. Our main theoretical results are as follows. First, for constant treewidth graphs we present an algorithm that approximates the mean-payoff value within a mul- tiplicative factor of ∊ in time O ( n · log( n/∊ )) and linear space, as compared to the classical algorithms that require quadratic time. Second, for the ratio property we present an algorithm that for constant treewidth graphs works in time O ( n · log( | a · b · n | )) = O ( n · log( n · W )) , when the output is a b , as compared to the previously best known algorithm with running time O ( n 2 · log( n · W )) . Third, for the minimum initial credit problem we show that (i) for general graphs the problem can be solved in O ( n 2 · m ) time and the associated decision problem can be solved in O ( n · m ) time, improving the previous known O ( n 3 · m · log( n · W )) and O ( n 2 · m ) bounds, respectively; and (ii) for constant treewidth graphs we present an algorithm that requires O ( n · log n ) time, improving the previous known O ( n 4 · log( n · W )) bound. We have implemented some of our algorithms and show that they present a significant speedup on standard benchmarks. alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs. IST Austria; 2015. doi:10.15479/AT:IST-2015-319-v1-1 apa: Chatterjee, K., Ibsen-Jensen, R., & Pavlogiannis, A. (2015). Faster algorithms for quantitative verification in constant treewidth graphs. IST Austria. https://doi.org/10.15479/AT:IST-2015-319-v1-1 chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis. Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-319-v1-1. ieee: K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, Faster algorithms for quantitative verification in constant treewidth graphs. IST Austria, 2015. ista: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2015. Faster algorithms for quantitative verification in constant treewidth graphs, IST Austria, 31p. mla: Chatterjee, Krishnendu, et al. Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs. IST Austria, 2015, doi:10.15479/AT:IST-2015-319-v1-1. short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs, IST Austria, 2015. date_created: 2018-12-12T11:39:17Z date_published: 2015-02-10T00:00:00Z date_updated: 2023-02-23T12:26:22Z day: '10' ddc: - '000' department: - _id: KrCh doi: 10.15479/AT:IST-2015-319-v1-1 file: - access_level: open_access checksum: 62c6ea01e342553dcafb88a070fb1ad5 content_type: application/pdf creator: system date_created: 2018-12-12T11:53:21Z date_updated: 2020-07-14T12:46:52Z file_id: '5482' file_name: IST-2015-319-v1+1_long.pdf file_size: 1089651 relation: main_file file_date_updated: 2020-07-14T12:46:52Z has_accepted_license: '1' language: - iso: eng month: '02' oa: 1 oa_version: Published Version page: '31' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '319' related_material: record: - id: '1607' relation: later_version status: public - id: '5437' relation: later_version status: public status: public title: Faster algorithms for quantitative verification in constant treewidth graphs type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '5438' abstract: - lang: eng text: "The edit distance between two words w1, w2 is the minimal number of word operations (letter insertions, deletions, and substitutions) necessary to transform w1 to w2. The edit distance generalizes to languages L1, L2, where the edit distance is the minimal number k such that for every word from L1 there exists a word in L2 with edit distance at most k. We study the edit distance computation problem between pushdown automata and their subclasses.\r\nThe problem of computing edit distance to a pushdown automaton is undecidable, and in practice, the interesting question is to compute the edit distance from a pushdown automaton (the implementation, a standard model for programs with recursion) to a regular language (the specification). In this work, we present a complete picture of decidability and complexity for deciding whether, for a given threshold k, the edit distance from a pushdown automaton to a finite automaton is at most k. " alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Jan full_name: Otop, Jan id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87 last_name: Otop citation: ama: Chatterjee K, Henzinger TA, Ibsen-Jensen R, Otop J. Edit Distance for Pushdown Automata. IST Austria; 2015. doi:10.15479/AT:IST-2015-334-v1-1 apa: Chatterjee, K., Henzinger, T. A., Ibsen-Jensen, R., & Otop, J. (2015). Edit distance for pushdown automata. IST Austria. https://doi.org/10.15479/AT:IST-2015-334-v1-1 chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Rasmus Ibsen-Jensen, and Jan Otop. Edit Distance for Pushdown Automata. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-334-v1-1. ieee: K. Chatterjee, T. A. Henzinger, R. Ibsen-Jensen, and J. Otop, Edit distance for pushdown automata. IST Austria, 2015. ista: Chatterjee K, Henzinger TA, Ibsen-Jensen R, Otop J. 2015. Edit distance for pushdown automata, IST Austria, 15p. mla: Chatterjee, Krishnendu, et al. Edit Distance for Pushdown Automata. IST Austria, 2015, doi:10.15479/AT:IST-2015-334-v1-1. short: K. Chatterjee, T.A. Henzinger, R. Ibsen-Jensen, J. Otop, Edit Distance for Pushdown Automata, IST Austria, 2015. date_created: 2018-12-12T11:39:20Z date_published: 2015-05-05T00:00:00Z date_updated: 2023-02-23T12:20:08Z day: '05' ddc: - '004' department: - _id: KrCh doi: 10.15479/AT:IST-2015-334-v1-1 file: - access_level: open_access checksum: 8a5f2d77560e552af87eb1982437a43b content_type: application/pdf creator: system date_created: 2018-12-12T11:53:56Z date_updated: 2020-07-14T12:46:55Z file_id: '5518' file_name: IST-2015-334-v1+1_report.pdf file_size: 422573 relation: main_file file_date_updated: 2020-07-14T12:46:55Z has_accepted_license: '1' language: - iso: eng month: '05' oa: 1 oa_version: Published Version page: '15' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '334' related_material: record: - id: '1610' relation: later_version status: public - id: '465' relation: later_version status: public status: public title: Edit distance for pushdown automata type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '5440' abstract: - lang: eng text: 'Evolution occurs in populations of reproducing individuals. The structure of the population affects the outcome of the evolutionary process. Evolutionary graph theory is a powerful approach to study this phenomenon. There are two graphs. The interaction graph specifies who interacts with whom for payoff in the context of evolution. The replacement graph specifies who competes with whom for reproduction. The vertices of the two graphs are the same, and each vertex corresponds to an individual of the population. The fitness (or the reproductive rate) is a non-negative number, and depends on the payoff. A key quantity is the fixation probability of a new mutant. It is defined as the probability that a newly introduced mutant (on a single vertex) generates a lineage of offspring which eventually takes over the entire population of resident individuals. The basic computational questions are as follows: (i) the qualitative question asks whether the fixation probability is positive; and (ii) the quantitative approximation question asks for an approximation of the fixation probability. Our main results are as follows: First, we consider a special case of the general problem, where the residents do not reproduce. We show that the qualitative question is NP-complete, and the quantitative approximation question is #P-complete, and the hardness results hold even in the special case where the interaction and the replacement graphs coincide. Second, we show that in general both the qualitative and the quantitative approximation questions are PSPACE-complete. The PSPACE-hardness result for quantitative approximation holds even when the fitness is always positive.' alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Chatterjee K, Ibsen-Jensen R, Nowak M. The Complexity of Evolutionary Games on Graphs. IST Austria; 2015. doi:10.15479/AT:IST-2015-323-v2-2 apa: Chatterjee, K., Ibsen-Jensen, R., & Nowak, M. (2015). The complexity of evolutionary games on graphs. IST Austria. https://doi.org/10.15479/AT:IST-2015-323-v2-2 chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Martin Nowak. The Complexity of Evolutionary Games on Graphs. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-323-v2-2. ieee: K. Chatterjee, R. Ibsen-Jensen, and M. Nowak, The complexity of evolutionary games on graphs. IST Austria, 2015. ista: Chatterjee K, Ibsen-Jensen R, Nowak M. 2015. The complexity of evolutionary games on graphs, IST Austria, 18p. mla: Chatterjee, Krishnendu, et al. The Complexity of Evolutionary Games on Graphs. IST Austria, 2015, doi:10.15479/AT:IST-2015-323-v2-2. short: K. Chatterjee, R. Ibsen-Jensen, M. Nowak, The Complexity of Evolutionary Games on Graphs, IST Austria, 2015. date_created: 2018-12-12T11:39:21Z date_published: 2015-06-16T00:00:00Z date_updated: 2023-02-23T12:26:10Z day: '16' ddc: - '005' - '576' department: - _id: KrCh doi: 10.15479/AT:IST-2015-323-v2-2 file: - access_level: open_access checksum: 66aace7d367032af97c15e35c9be9636 content_type: application/pdf creator: system date_created: 2018-12-12T11:53:23Z date_updated: 2020-07-14T12:46:56Z file_id: '5484' file_name: IST-2015-323-v2+2_main.pdf file_size: 466161 relation: main_file file_date_updated: 2020-07-14T12:46:56Z has_accepted_license: '1' language: - iso: eng month: '06' oa: 1 oa_version: Published Version page: '18' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '338' related_material: record: - id: '5421' relation: earlier_version status: public - id: '5432' relation: earlier_version status: public status: public title: The complexity of evolutionary games on graphs type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '5432' abstract: - lang: eng text: "Evolution occurs in populations of reproducing individuals. The structure of the population affects the outcome of the evolutionary process. Evolutionary graph theory is a powerful approach to study this phenomenon. There are two graphs. The interaction graph specifies who interacts with whom in the context of evolution.The replacement graph specifies who competes with whom for reproduction. \r\nThe vertices of the two graphs are the same, and each vertex corresponds to an individual of the population. A key quantity is the fixation probability of a new mutant. It is defined as the probability that a newly introduced mutant (on a single vertex) generates a lineage of offspring which eventually takes over the entire population of resident individuals. The basic computational questions are as follows: (i) the qualitative question asks whether the fixation probability is positive; and (ii) the quantitative approximation question asks for an approximation of the fixation probability. \r\nOur main results are:\r\n(1) We show that the qualitative question is NP-complete and the quantitative approximation question is #P-hard in the special case when the interaction and the replacement graphs coincide and even with the restriction that the resident individuals do not reproduce (which corresponds to an invading population taking over an empty structure).\r\n(2) We show that in general the qualitative question is PSPACE-complete and the quantitative approximation question is PSPACE-hard and can be solved in exponential time.\r\n" alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Chatterjee K, Ibsen-Jensen R, Nowak M. The Complexity of Evolutionary Games on Graphs. IST Austria; 2015. doi:10.15479/AT:IST-2015-323-v1-1 apa: Chatterjee, K., Ibsen-Jensen, R., & Nowak, M. (2015). The complexity of evolutionary games on graphs. IST Austria. https://doi.org/10.15479/AT:IST-2015-323-v1-1 chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Martin Nowak. The Complexity of Evolutionary Games on Graphs. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-323-v1-1. ieee: K. Chatterjee, R. Ibsen-Jensen, and M. Nowak, The complexity of evolutionary games on graphs. IST Austria, 2015. ista: Chatterjee K, Ibsen-Jensen R, Nowak M. 2015. The complexity of evolutionary games on graphs, IST Austria, 29p. mla: Chatterjee, Krishnendu, et al. The Complexity of Evolutionary Games on Graphs. IST Austria, 2015, doi:10.15479/AT:IST-2015-323-v1-1. short: K. Chatterjee, R. Ibsen-Jensen, M. Nowak, The Complexity of Evolutionary Games on Graphs, IST Austria, 2015. date_created: 2018-12-12T11:39:18Z date_published: 2015-02-19T00:00:00Z date_updated: 2023-02-23T12:26:33Z day: '19' ddc: - '005' - '576' department: - _id: KrCh doi: 10.15479/AT:IST-2015-323-v1-1 file: - access_level: open_access checksum: 546c1b291d545e7b24aaaf4199dac671 content_type: application/pdf creator: system date_created: 2018-12-12T11:53:57Z date_updated: 2020-07-14T12:46:53Z file_id: '5519' file_name: IST-2015-323-v1+1_main.pdf file_size: 576347 relation: main_file file_date_updated: 2020-07-14T12:46:53Z has_accepted_license: '1' language: - iso: eng month: '02' oa: 1 oa_version: Published Version page: '29' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '323' related_material: record: - id: '5421' relation: earlier_version status: public - id: '5440' relation: later_version status: public status: public title: The complexity of evolutionary games on graphs type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '5444' abstract: - lang: eng text: A comprehensive understanding of the clonal evolution of cancer is critical for understanding neoplasia. Genome-wide sequencing data enables evolutionary studies at unprecedented depth. However, classical phylogenetic methods often struggle with noisy sequencing data of impure DNA samples and fail to detect subclones that have different evolutionary trajectories. We have developed a tool, called Treeomics, that allows us to reconstruct the phylogeny of a cancer with commonly available sequencing technologies. Using Bayesian inference and Integer Linear Programming, robust phylogenies consistent with the biological processes underlying cancer evolution were obtained for pancreatic, ovarian, and prostate cancers. Furthermore, Treeomics correctly identified sequencing artifacts such as those resulting from low statistical power; nearly 7% of variants were misclassified by conventional statistical methods. These artifacts can skew phylogenies by creating illusory tumor heterogeneity among distinct samples. Importantly, we show that the evolutionary trees generated with Treeomics are mathematically optimal. alternative_title: - IST Austria Technical Report author: - first_name: Johannes full_name: Reiter, Johannes id: 4A918E98-F248-11E8-B48F-1D18A9856A87 last_name: Reiter orcid: 0000-0002-0170-7353 - first_name: Alvin full_name: Makohon-Moore, Alvin last_name: Makohon-Moore - first_name: Jeffrey full_name: Gerold, Jeffrey last_name: Gerold - first_name: Ivana full_name: Bozic, Ivana last_name: Bozic - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Christine full_name: Iacobuzio-Donahue, Christine last_name: Iacobuzio-Donahue - first_name: Bert full_name: Vogelstein, Bert last_name: Vogelstein - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Reiter J, Makohon-Moore A, Gerold J, et al. Reconstructing Robust Phylogenies of Metastatic Cancers. IST Austria; 2015. doi:10.15479/AT:IST-2015-399-v1-1 apa: Reiter, J., Makohon-Moore, A., Gerold, J., Bozic, I., Chatterjee, K., Iacobuzio-Donahue, C., … Nowak, M. (2015). Reconstructing robust phylogenies of metastatic cancers. IST Austria. https://doi.org/10.15479/AT:IST-2015-399-v1-1 chicago: Reiter, Johannes, Alvin Makohon-Moore, Jeffrey Gerold, Ivana Bozic, Krishnendu Chatterjee, Christine Iacobuzio-Donahue, Bert Vogelstein, and Martin Nowak. Reconstructing Robust Phylogenies of Metastatic Cancers. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-399-v1-1. ieee: J. Reiter et al., Reconstructing robust phylogenies of metastatic cancers. IST Austria, 2015. ista: Reiter J, Makohon-Moore A, Gerold J, Bozic I, Chatterjee K, Iacobuzio-Donahue C, Vogelstein B, Nowak M. 2015. Reconstructing robust phylogenies of metastatic cancers, IST Austria, 25p. mla: Reiter, Johannes, et al. Reconstructing Robust Phylogenies of Metastatic Cancers. IST Austria, 2015, doi:10.15479/AT:IST-2015-399-v1-1. short: J. Reiter, A. Makohon-Moore, J. Gerold, I. Bozic, K. Chatterjee, C. Iacobuzio-Donahue, B. Vogelstein, M. Nowak, Reconstructing Robust Phylogenies of Metastatic Cancers, IST Austria, 2015. date_created: 2018-12-12T11:39:22Z date_published: 2015-12-30T00:00:00Z date_updated: 2020-07-14T23:05:07Z day: '30' ddc: - '000' - '576' department: - _id: KrCh doi: 10.15479/AT:IST-2015-399-v1-1 file: - access_level: open_access checksum: c47d33bdda06181753c0af36f16e7b5d content_type: application/pdf creator: system date_created: 2018-12-12T11:53:24Z date_updated: 2020-07-14T12:46:58Z file_id: '5485' file_name: IST-2015-399-v1+1_treeomics.pdf file_size: 3533200 relation: main_file file_date_updated: 2020-07-14T12:46:58Z has_accepted_license: '1' language: - iso: eng month: '12' oa: 1 oa_version: Published Version page: '25' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '399' status: public title: Reconstructing robust phylogenies of metastatic cancers type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '5443' abstract: - lang: eng text: POMDPs are standard models for probabilistic planning problems, where an agent interacts with an uncertain environment. We study the problem of almost-sure reachability, where given a set of target states, the question is to decide whether there is a policy to ensure that the target set is reached with probability 1 (almost-surely). While in general the problem is EXPTIME-complete, in many practical cases policies with a small amount of memory suffice. Moreover, the existing solution to the problem is explicit, which first requires to construct explicitly an exponential reduction to a belief-support MDP. In this work, we first study the existence of observation-stationary strategies, which is NP-complete, and then small-memory strategies. We present a symbolic algorithm by an efficient encoding to SAT and using a SAT solver for the problem. We report experimental results demonstrating the scalability of our symbolic (SAT-based) approach. alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Jessica full_name: Davies, Jessica id: 378E0060-F248-11E8-B48F-1D18A9856A87 last_name: Davies citation: ama: Chatterjee K, Chmelik M, Davies J. A Symbolic SAT-Based Algorithm for Almost-Sure Reachability with Small Strategies in POMDPs. IST Austria; 2015. doi:10.15479/AT:IST-2015-325-v2-1 apa: Chatterjee, K., Chmelik, M., & Davies, J. (2015). A symbolic SAT-based algorithm for almost-sure reachability with small strategies in POMDPs. IST Austria. https://doi.org/10.15479/AT:IST-2015-325-v2-1 chicago: Chatterjee, Krishnendu, Martin Chmelik, and Jessica Davies. A Symbolic SAT-Based Algorithm for Almost-Sure Reachability with Small Strategies in POMDPs. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-325-v2-1. ieee: K. Chatterjee, M. Chmelik, and J. Davies, A symbolic SAT-based algorithm for almost-sure reachability with small strategies in POMDPs. IST Austria, 2015. ista: Chatterjee K, Chmelik M, Davies J. 2015. A symbolic SAT-based algorithm for almost-sure reachability with small strategies in POMDPs, IST Austria, 23p. mla: Chatterjee, Krishnendu, et al. A Symbolic SAT-Based Algorithm for Almost-Sure Reachability with Small Strategies in POMDPs. IST Austria, 2015, doi:10.15479/AT:IST-2015-325-v2-1. short: K. Chatterjee, M. Chmelik, J. Davies, A Symbolic SAT-Based Algorithm for Almost-Sure Reachability with Small Strategies in POMDPs, IST Austria, 2015. date_created: 2018-12-12T11:39:22Z date_published: 2015-11-06T00:00:00Z date_updated: 2023-02-21T16:24:05Z day: '06' ddc: - '000' department: - _id: KrCh doi: 10.15479/AT:IST-2015-325-v2-1 file: - access_level: open_access checksum: f0fa31ad8161ed655137e94012123ef9 content_type: application/pdf creator: system date_created: 2018-12-12T11:53:05Z date_updated: 2020-07-14T12:46:57Z file_id: '5466' file_name: IST-2015-325-v2+1_main.pdf file_size: 412379 relation: main_file file_date_updated: 2020-07-14T12:46:57Z has_accepted_license: '1' language: - iso: eng month: '11' oa: 1 oa_version: Published Version page: '23' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '362' related_material: record: - id: '1166' relation: later_version status: public status: public title: A symbolic SAT-based algorithm for almost-sure reachability with small strategies in POMDPs type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '1709' abstract: - lang: eng text: The competition for resources among cells, individuals or species is a fundamental characteristic of evolution. Biological all-pay auctions have been used to model situations where multiple individuals compete for a single resource. However, in many situations multiple resources with various values exist and single reward auctions are not applicable. We generalize the model to multiple rewards and study the evolution of strategies. In biological all-pay auctions the bid of an individual corresponds to its strategy and is equivalent to its payment in the auction. The decreasingly ordered rewards are distributed according to the decreasingly ordered bids of the participating individuals. The reproductive success of an individual is proportional to its fitness given by the sum of the rewards won minus its payments. Hence, successful bidding strategies spread in the population. We find that the results for the multiple reward case are very different from the single reward case. While the mixed strategy equilibrium in the single reward case with more than two players consists of mostly low-bidding individuals, we show that the equilibrium can convert to many high-bidding individuals and a few low-bidding individuals in the multiple reward case. Some reward values lead to a specialization among the individuals where one subpopulation competes for the rewards and the other subpopulation largely avoids costly competitions. Whether the mixed strategy equilibrium is an evolutionarily stable strategy (ESS) depends on the specific values of the rewards. acknowledgement: 'This work was supported by grants from the John Templeton Foundation, ERC Start Grant (279307: Graph Games), FWF NFN Grant (No S11407N23 RiSE/SHiNE), FWF Grant (No P23499N23) and a Microsoft faculty fellows award.' article_processing_charge: No article_type: original author: - first_name: Johannes full_name: Reiter, Johannes id: 4A918E98-F248-11E8-B48F-1D18A9856A87 last_name: Reiter orcid: 0000-0002-0170-7353 - first_name: Ayush full_name: Kanodia, Ayush last_name: Kanodia - first_name: Raghav full_name: Gupta, Raghav last_name: Gupta - first_name: Martin full_name: Nowak, Martin last_name: Nowak - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X citation: ama: Reiter J, Kanodia A, Gupta R, Nowak M, Chatterjee K. Biological auctions with multiple rewards. Proceedings of the Royal Society of London Series B Biological Sciences. 2015;282(1812). doi:10.1098/rspb.2015.1041 apa: Reiter, J., Kanodia, A., Gupta, R., Nowak, M., & Chatterjee, K. (2015). Biological auctions with multiple rewards. Proceedings of the Royal Society of London Series B Biological Sciences. Royal Society. https://doi.org/10.1098/rspb.2015.1041 chicago: Reiter, Johannes, Ayush Kanodia, Raghav Gupta, Martin Nowak, and Krishnendu Chatterjee. “Biological Auctions with Multiple Rewards.” Proceedings of the Royal Society of London Series B Biological Sciences. Royal Society, 2015. https://doi.org/10.1098/rspb.2015.1041. ieee: J. Reiter, A. Kanodia, R. Gupta, M. Nowak, and K. Chatterjee, “Biological auctions with multiple rewards,” Proceedings of the Royal Society of London Series B Biological Sciences, vol. 282, no. 1812. Royal Society, 2015. ista: Reiter J, Kanodia A, Gupta R, Nowak M, Chatterjee K. 2015. Biological auctions with multiple rewards. Proceedings of the Royal Society of London Series B Biological Sciences. 282(1812). mla: Reiter, Johannes, et al. “Biological Auctions with Multiple Rewards.” Proceedings of the Royal Society of London Series B Biological Sciences, vol. 282, no. 1812, Royal Society, 2015, doi:10.1098/rspb.2015.1041. short: J. Reiter, A. Kanodia, R. Gupta, M. Nowak, K. Chatterjee, Proceedings of the Royal Society of London Series B Biological Sciences 282 (2015). date_created: 2018-12-11T11:53:35Z date_published: 2015-07-15T00:00:00Z date_updated: 2023-09-07T11:40:43Z day: '15' department: - _id: KrCh doi: 10.1098/rspb.2015.1041 external_id: pmid: - '26180069' intvolume: ' 282' issue: '1812' language: - iso: eng main_file_link: - open_access: '1' url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4528522/ month: '07' oa: 1 oa_version: Submitted Version pmid: 1 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Proceedings of the Royal Society of London Series B Biological Sciences publication_status: published publisher: Royal Society publist_id: '5425' quality_controlled: '1' related_material: record: - id: '1400' relation: dissertation_contains status: public scopus_import: 1 status: public title: Biological auctions with multiple rewards type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 282 year: '2015' ... --- _id: '1400' abstract: - lang: eng text: Cancer results from an uncontrolled growth of abnormal cells. Sequentially accumulated genetic and epigenetic alterations decrease cell death and increase cell replication. We used mathematical models to quantify the effect of driver gene mutations. The recently developed targeted therapies can lead to dramatic regressions. However, in solid cancers, clinical responses are often short-lived because resistant cancer cells evolve. We estimated that approximately 50 different mutations can confer resistance to a typical targeted therapeutic agent. We find that resistant cells are likely to be present in expanded subclones before the start of the treatment. The dominant strategy to prevent the evolution of resistance is combination therapy. Our analytical results suggest that in most patients, dual therapy, but not monotherapy, can result in long-term disease control. However, long-term control can only occur if there are no possible mutations in the genome that can cause cross-resistance to both drugs. Furthermore, we showed that simultaneous therapy with two drugs is much more likely to result in long-term disease control than sequential therapy with the same drugs. To improve our understanding of the underlying subclonal evolution we reconstruct the evolutionary history of a patient's cancer from next-generation sequencing data of spatially-distinct DNA samples. Using a quantitative measure of genetic relatedness, we found that pancreatic cancers and their metastases demonstrated a higher level of relatedness than that expected for any two cells randomly taken from a normal tissue. This minimal amount of genetic divergence among advanced lesions indicates that genetic heterogeneity, when quantitatively defined, is not a fundamental feature of the natural history of untreated pancreatic cancers. Our newly developed, phylogenomic tool Treeomics finds evidence for seeding patterns of metastases and can directly be used to discover rules governing the evolution of solid malignancies to transform cancer into a more predictable disease. alternative_title: - ISTA Thesis article_processing_charge: No author: - first_name: Johannes full_name: Reiter, Johannes id: 4A918E98-F248-11E8-B48F-1D18A9856A87 last_name: Reiter orcid: 0000-0002-0170-7353 citation: ama: Reiter J. The subclonal evolution of cancer. 2015. apa: Reiter, J. (2015). The subclonal evolution of cancer. Institute of Science and Technology Austria. chicago: Reiter, Johannes. “The Subclonal Evolution of Cancer.” Institute of Science and Technology Austria, 2015. ieee: J. Reiter, “The subclonal evolution of cancer,” Institute of Science and Technology Austria, 2015. ista: Reiter J. 2015. The subclonal evolution of cancer. Institute of Science and Technology Austria. mla: Reiter, Johannes. The Subclonal Evolution of Cancer. Institute of Science and Technology Austria, 2015. short: J. Reiter, The Subclonal Evolution of Cancer, Institute of Science and Technology Austria, 2015. date_created: 2018-12-11T11:51:48Z date_published: 2015-04-01T00:00:00Z date_updated: 2023-09-07T11:40:44Z day: '01' degree_awarded: PhD department: - _id: KrCh language: - iso: eng month: '04' oa_version: None page: '183' publication_identifier: issn: - 2663-337X publication_status: published publisher: Institute of Science and Technology Austria publist_id: '5807' related_material: record: - id: '1709' relation: part_of_dissertation status: public - id: '2000' relation: part_of_dissertation status: public - id: '2247' relation: part_of_dissertation status: public - id: '2816' relation: part_of_dissertation status: public - id: '2858' relation: part_of_dissertation status: public - id: '3157' relation: part_of_dissertation status: public - id: '3260' relation: part_of_dissertation status: public status: public supervisor: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X title: The subclonal evolution of cancer type: dissertation user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 year: '2015' ... --- _id: '1502' abstract: - lang: eng text: We extend the theory of input-output conformance with operators for merge and quotient. The former is useful when testing against multiple requirements or views. The latter can be used to generate tests for patches of an already tested system. Both operators can combine systems with different action alphabets, which is usually the case when constructing complex systems and specifications from parts, for instance different views as well as newly defined functionality of a~previous version of the system. acknowledgement: "This research was funded in part by the European Research Council (ERC) under grant agreement 267989 (QUAREM), by the Austrian Science Fund (FWF) projects S11402-N23(RiSE) and Z211-N23 (Wittgestein Award), by People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) under REA grant agreement 291734, and by the ARTEMIS JU under grant agreement 295373 (nSafeCer). Jan Křetínský has been partially supported by the Czech Science Foundation, grant No. P202/12/G061. Nikola Beneš has been supported by the\r\nMEYS project No. CZ.1.07/2.3.00/30.0009 Employment of Newly Graduated Doctors of Science for Scientific Excellence." alternative_title: - 'Proceedings of the 18th International ACM SIGSOFT Symposium on Component-Based Software Engineering ' author: - first_name: Nikola full_name: Beneš, Nikola last_name: Beneš - first_name: Przemyslaw full_name: Daca, Przemyslaw id: 49351290-F248-11E8-B48F-1D18A9856A87 last_name: Daca - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Dejan full_name: Nickovic, Dejan last_name: Nickovic citation: ama: 'Beneš N, Daca P, Henzinger TA, Kretinsky J, Nickovic D. Complete composition operators for IOCO-testing theory. In: ACM; 2015:101-110. doi:10.1145/2737166.2737175' apa: 'Beneš, N., Daca, P., Henzinger, T. A., Kretinsky, J., & Nickovic, D. (2015). Complete composition operators for IOCO-testing theory (pp. 101–110). Presented at the CBSE: Component-Based Software Engineering , Montreal, QC, Canada: ACM. https://doi.org/10.1145/2737166.2737175' chicago: Beneš, Nikola, Przemyslaw Daca, Thomas A Henzinger, Jan Kretinsky, and Dejan Nickovic. “Complete Composition Operators for IOCO-Testing Theory,” 101–10. ACM, 2015. https://doi.org/10.1145/2737166.2737175. ieee: 'N. Beneš, P. Daca, T. A. Henzinger, J. Kretinsky, and D. Nickovic, “Complete composition operators for IOCO-testing theory,” presented at the CBSE: Component-Based Software Engineering , Montreal, QC, Canada, 2015, pp. 101–110.' ista: 'Beneš N, Daca P, Henzinger TA, Kretinsky J, Nickovic D. 2015. Complete composition operators for IOCO-testing theory. CBSE: Component-Based Software Engineering , Proceedings of the 18th International ACM SIGSOFT Symposium on Component-Based Software Engineering , , 101–110.' mla: Beneš, Nikola, et al. Complete Composition Operators for IOCO-Testing Theory. ACM, 2015, pp. 101–10, doi:10.1145/2737166.2737175. short: N. Beneš, P. Daca, T.A. Henzinger, J. Kretinsky, D. Nickovic, in:, ACM, 2015, pp. 101–110. conference: end_date: 2015-05-08 location: Montreal, QC, Canada name: 'CBSE: Component-Based Software Engineering ' start_date: 2015-05-04 date_created: 2018-12-11T11:52:24Z date_published: 2015-05-01T00:00:00Z date_updated: 2023-09-07T11:58:33Z day: '01' ddc: - '000' department: - _id: ToHe - _id: KrCh doi: 10.1145/2737166.2737175 ec_funded: 1 file: - access_level: open_access checksum: c6ce681035c163a158751f240cb7d389 content_type: application/pdf creator: system date_created: 2018-12-12T10:17:46Z date_updated: 2020-07-14T12:44:59Z file_id: '5303' file_name: IST-2016-625-v1+1_conf-cbse-BenesDHKN15.pdf file_size: 467561 relation: main_file file_date_updated: 2020-07-14T12:44:59Z has_accepted_license: '1' language: - iso: eng month: '05' oa: 1 oa_version: Submitted Version page: 101 - 110 project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_identifier: isbn: - 978-1-4503-3471-6 publication_status: published publisher: ACM publist_id: '5676' pubrep_id: '625' quality_controlled: '1' related_material: record: - id: '1155' relation: dissertation_contains status: public scopus_import: 1 status: public title: Complete composition operators for IOCO-testing theory type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '1501' abstract: - lang: eng text: 'We consider Markov decision processes (MDPs) which are a standard model for probabilistic systems. We focus on qualitative properties for MDPs that can express that desired behaviors of the system arise almost-surely (with probability 1) or with positive probability. We introduce a new simulation relation to capture the refinement relation of MDPs with respect to qualitative properties, and present discrete graph algorithms with quadratic complexity to compute the simulation relation. We present an automated technique for assume-guarantee style reasoning for compositional analysis of two-player games by giving a counterexample guided abstraction-refinement approach to compute our new simulation relation. We show a tight link between two-player games and MDPs, and as a consequence the results for games are lifted to MDPs with qualitative properties. We have implemented our algorithms and show that the compositional analysis leads to significant improvements. ' acknowledgement: 'The research was partly supported by Austrian Science Fund (FWF) Grant No. P23499- N23, FWF NFN Grant No. S11407-N23, FWF Grant S11403-N23 (RiSE), and FWF Grant Z211-N23 (Wittgenstein Award), ERC Start Grant (279307: Graph Games), Microsoft faculty fellows award, the ERC Advanced Grant QUAREM (Quantitative Reactive Modeling).' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Przemyslaw full_name: Daca, Przemyslaw id: 49351290-F248-11E8-B48F-1D18A9856A87 last_name: Daca citation: ama: Chatterjee K, Chmelik M, Daca P. CEGAR for compositional analysis of qualitative properties in Markov decision processes. Formal Methods in System Design. 2015;47(2):230-264. doi:10.1007/s10703-015-0235-2 apa: Chatterjee, K., Chmelik, M., & Daca, P. (2015). CEGAR for compositional analysis of qualitative properties in Markov decision processes. Formal Methods in System Design. Springer. https://doi.org/10.1007/s10703-015-0235-2 chicago: Chatterjee, Krishnendu, Martin Chmelik, and Przemyslaw Daca. “CEGAR for Compositional Analysis of Qualitative Properties in Markov Decision Processes.” Formal Methods in System Design. Springer, 2015. https://doi.org/10.1007/s10703-015-0235-2. ieee: K. Chatterjee, M. Chmelik, and P. Daca, “CEGAR for compositional analysis of qualitative properties in Markov decision processes,” Formal Methods in System Design, vol. 47, no. 2. Springer, pp. 230–264, 2015. ista: Chatterjee K, Chmelik M, Daca P. 2015. CEGAR for compositional analysis of qualitative properties in Markov decision processes. Formal Methods in System Design. 47(2), 230–264. mla: Chatterjee, Krishnendu, et al. “CEGAR for Compositional Analysis of Qualitative Properties in Markov Decision Processes.” Formal Methods in System Design, vol. 47, no. 2, Springer, 2015, pp. 230–64, doi:10.1007/s10703-015-0235-2. short: K. Chatterjee, M. Chmelik, P. Daca, Formal Methods in System Design 47 (2015) 230–264. date_created: 2018-12-11T11:52:23Z date_published: 2015-10-01T00:00:00Z date_updated: 2023-09-07T11:58:33Z day: '01' department: - _id: KrCh - _id: ToHe doi: 10.1007/s10703-015-0235-2 ec_funded: 1 intvolume: ' 47' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1405.0835 month: '10' oa: 1 oa_version: Preprint page: 230 - 264 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling publication: Formal Methods in System Design publication_status: published publisher: Springer publist_id: '5677' quality_controlled: '1' related_material: record: - id: '1155' relation: dissertation_contains status: public scopus_import: 1 status: public title: CEGAR for compositional analysis of qualitative properties in Markov decision processes type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 47 year: '2015' ... --- _id: '1602' abstract: - lang: eng text: Interprocedural analysis is at the heart of numerous applications in programming languages, such as alias analysis, constant propagation, etc. Recursive state machines (RSMs) are standard models for interprocedural analysis. We consider a general framework with RSMs where the transitions are labeled from a semiring, and path properties are algebraic with semiring operations. RSMs with algebraic path properties can model interprocedural dataflow analysis problems, the shortest path problem, the most probable path problem, etc. The traditional algorithms for interprocedural analysis focus on path properties where the starting point is fixed as the entry point of a specific method. In this work, we consider possible multiple queries as required in many applications such as in alias analysis. The study of multiple queries allows us to bring in a very important algorithmic distinction between the resource usage of the one-time preprocessing vs for each individual query. The second aspect that we consider is that the control flow graphs for most programs have constant treewidth. Our main contributions are simple and implementable algorithms that supportmultiple queries for algebraic path properties for RSMs that have constant treewidth. Our theoretical results show that our algorithms have small additional one-time preprocessing, but can answer subsequent queries significantly faster as compared to the current best-known solutions for several important problems, such as interprocedural reachability and shortest path. We provide a prototype implementation for interprocedural reachability and intraprocedural shortest path that gives a significant speed-up on several benchmarks. acknowledgement: We thank anonymous reviewers for helpful comments to improve the presentation of the paper. author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Prateesh full_name: Goyal, Prateesh last_name: Goyal citation: ama: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A, Goyal P. Faster algorithms for algebraic path properties in recursive state machines with constant treewidth. ACM SIGPLAN Notices. 2015;50(1):97-109. doi:10.1145/2676726.2676979 apa: 'Chatterjee, K., Ibsen-Jensen, R., Pavlogiannis, A., & Goyal, P. (2015). Faster algorithms for algebraic path properties in recursive state machines with constant treewidth. ACM SIGPLAN Notices. Mumbai, India: ACM. https://doi.org/10.1145/2676726.2676979' chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, Andreas Pavlogiannis, and Prateesh Goyal. “Faster Algorithms for Algebraic Path Properties in Recursive State Machines with Constant Treewidth.” ACM SIGPLAN Notices. ACM, 2015. https://doi.org/10.1145/2676726.2676979. ieee: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, and P. Goyal, “Faster algorithms for algebraic path properties in recursive state machines with constant treewidth,” ACM SIGPLAN Notices, vol. 50, no. 1. ACM, pp. 97–109, 2015. ista: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A, Goyal P. 2015. Faster algorithms for algebraic path properties in recursive state machines with constant treewidth. ACM SIGPLAN Notices. 50(1), 97–109. mla: Chatterjee, Krishnendu, et al. “Faster Algorithms for Algebraic Path Properties in Recursive State Machines with Constant Treewidth.” ACM SIGPLAN Notices, vol. 50, no. 1, ACM, 2015, pp. 97–109, doi:10.1145/2676726.2676979. short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, P. Goyal, ACM SIGPLAN Notices 50 (2015) 97–109. conference: end_date: 2015-01-17 location: Mumbai, India name: 'SIGPLAN: Symposium on Principles of Programming Languages' start_date: 2015-01-15 date_created: 2018-12-11T11:52:58Z date_published: 2015-01-01T00:00:00Z date_updated: 2023-09-07T12:01:58Z day: '01' department: - _id: KrCh doi: 10.1145/2676726.2676979 ec_funded: 1 external_id: arxiv: - '1410.7724' intvolume: ' 50' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1410.7724 month: '01' oa: 1 oa_version: Preprint page: 97 - 109 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: ACM SIGPLAN Notices publication_status: published publisher: ACM publist_id: '5565' quality_controlled: '1' related_material: record: - id: '821' relation: dissertation_contains status: public scopus_import: 1 status: public title: Faster algorithms for algebraic path properties in recursive state machines with constant treewidth type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 50 year: '2015' ... --- _id: '1604' abstract: - lang: eng text: We consider the quantitative analysis problem for interprocedural control-flow graphs (ICFGs). The input consists of an ICFG, a positive weight function that assigns every transition a positive integer-valued number, and a labelling of the transitions (events) as good, bad, and neutral events. The weight function assigns to each transition a numerical value that represents ameasure of how good or bad an event is. The quantitative analysis problem asks whether there is a run of the ICFG where the ratio of the sum of the numerical weights of good events versus the sum of weights of bad events in the long-run is at least a given threshold (or equivalently, to compute the maximal ratio among all valid paths in the ICFG). The quantitative analysis problem for ICFGs can be solved in polynomial time, and we present an efficient and practical algorithm for the problem. We show that several problems relevant for static program analysis, such as estimating the worst-case execution time of a program or the average energy consumption of a mobile application, can be modeled in our framework. We have implemented our algorithm as a tool in the Java Soot framework. We demonstrate the effectiveness of our approach with two case studies. First, we show that our framework provides a sound approach (no false positives) for the analysis of inefficiently-used containers. Second, we show that our approach can also be used for static profiling of programs which reasons about methods that are frequently invoked. Our experimental results show that our tool scales to relatively large benchmarks, and discovers relevant and useful information that can be used to optimize performance of the programs. author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Yaron full_name: Velner, Yaron last_name: Velner citation: ama: Chatterjee K, Pavlogiannis A, Velner Y. Quantitative interprocedural analysis. Proceedings of the 42nd Annual ACM SIGPLAN-SIGACT . 2015;50(1):539-551. doi:10.1145/2676726.2676968 apa: 'Chatterjee, K., Pavlogiannis, A., & Velner, Y. (2015). Quantitative interprocedural analysis. Proceedings of the 42nd Annual ACM SIGPLAN-SIGACT . Mumbai, India: ACM. https://doi.org/10.1145/2676726.2676968' chicago: Chatterjee, Krishnendu, Andreas Pavlogiannis, and Yaron Velner. “Quantitative Interprocedural Analysis.” Proceedings of the 42nd Annual ACM SIGPLAN-SIGACT . ACM, 2015. https://doi.org/10.1145/2676726.2676968. ieee: K. Chatterjee, A. Pavlogiannis, and Y. Velner, “Quantitative interprocedural analysis,” Proceedings of the 42nd Annual ACM SIGPLAN-SIGACT , vol. 50, no. 1. ACM, pp. 539–551, 2015. ista: Chatterjee K, Pavlogiannis A, Velner Y. 2015. Quantitative interprocedural analysis. Proceedings of the 42nd Annual ACM SIGPLAN-SIGACT . 50(1), 539–551. mla: Chatterjee, Krishnendu, et al. “Quantitative Interprocedural Analysis.” Proceedings of the 42nd Annual ACM SIGPLAN-SIGACT , vol. 50, no. 1, ACM, 2015, pp. 539–51, doi:10.1145/2676726.2676968. short: K. Chatterjee, A. Pavlogiannis, Y. Velner, Proceedings of the 42nd Annual ACM SIGPLAN-SIGACT 50 (2015) 539–551. conference: end_date: 2015-01-17 location: Mumbai, India name: 'SIGPLAN: Symposium on Principles of Programming Languages' start_date: 2015-01-15 date_created: 2018-12-11T11:52:59Z date_published: 2015-01-01T00:00:00Z date_updated: 2023-09-07T12:01:59Z day: '01' department: - _id: KrCh doi: 10.1145/2676726.2676968 ec_funded: 1 intvolume: ' 50' issue: '1' language: - iso: eng month: '01' oa_version: None page: 539 - 551 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: 'Proceedings of the 42nd Annual ACM SIGPLAN-SIGACT ' publication_identifier: isbn: - 978-1-4503-3300-9 publication_status: published publisher: ACM publist_id: '5563' pubrep_id: '523' quality_controlled: '1' related_material: record: - id: '5445' relation: earlier_version status: public - id: '821' relation: dissertation_contains status: public scopus_import: 1 status: public title: Quantitative interprocedural analysis type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 50 year: '2015' ... --- _id: '1607' abstract: - lang: eng text: We consider the core algorithmic problems related to verification of systems with respect to three classical quantitative properties, namely, the mean-payoff property, the ratio property, and the minimum initial credit for energy property. The algorithmic problem given a graph and a quantitative property asks to compute the optimal value (the infimum value over all traces) from every node of the graph. We consider graphs with constant treewidth, and it is well-known that the control-flow graphs of most programs have constant treewidth. Let n denote the number of nodes of a graph, m the number of edges (for constant treewidth graphs m=O(n)) and W the largest absolute value of the weights. Our main theoretical results are as follows. First, for constant treewidth graphs we present an algorithm that approximates the mean-payoff value within a multiplicative factor of ϵ in time O(n⋅log(n/ϵ)) and linear space, as compared to the classical algorithms that require quadratic time. Second, for the ratio property we present an algorithm that for constant treewidth graphs works in time O(n⋅log(|a⋅b|))=O(n⋅log(n⋅W)), when the output is ab, as compared to the previously best known algorithm with running time O(n2⋅log(n⋅W)). Third, for the minimum initial credit problem we show that (i) for general graphs the problem can be solved in O(n2⋅m) time and the associated decision problem can be solved in O(n⋅m) time, improving the previous known O(n3⋅m⋅log(n⋅W)) and O(n2⋅m) bounds, respectively; and (ii) for constant treewidth graphs we present an algorithm that requires O(n⋅logn) time, improving the previous known O(n4⋅log(n⋅W)) bound. We have implemented some of our algorithms and show that they present a significant speedup on standard benchmarks. acknowledgement: 'The research was partly supported by Austrian Science Fund (FWF) Grant No P23499- N23, FWF NFN Grant No S11407-N23 (RiSE/SHiNE), ERC Start grant (279307: Graph Games), and Microsoft faculty fellows award.' alternative_title: - LNCS author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: 'Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. Faster algorithms for quantitative verification in constant treewidth graphs. In: Vol 9206. Springer; 2015:140-157. doi:10.1007/978-3-319-21690-4_9' apa: 'Chatterjee, K., Ibsen-Jensen, R., & Pavlogiannis, A. (2015). Faster algorithms for quantitative verification in constant treewidth graphs (Vol. 9206, pp. 140–157). Presented at the CAV: Computer Aided Verification, San Francisco, CA, USA: Springer. https://doi.org/10.1007/978-3-319-21690-4_9' chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis. “Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs,” 9206:140–57. Springer, 2015. https://doi.org/10.1007/978-3-319-21690-4_9. ieee: 'K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, “Faster algorithms for quantitative verification in constant treewidth graphs,” presented at the CAV: Computer Aided Verification, San Francisco, CA, USA, 2015, vol. 9206, pp. 140–157.' ista: 'Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2015. Faster algorithms for quantitative verification in constant treewidth graphs. CAV: Computer Aided Verification, LNCS, vol. 9206, 140–157.' mla: Chatterjee, Krishnendu, et al. Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs. Vol. 9206, Springer, 2015, pp. 140–57, doi:10.1007/978-3-319-21690-4_9. short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, in:, Springer, 2015, pp. 140–157. conference: end_date: 2015-07-24 location: San Francisco, CA, USA name: 'CAV: Computer Aided Verification' start_date: 2015-07-18 date_created: 2018-12-11T11:52:59Z date_published: 2015-07-16T00:00:00Z date_updated: 2023-09-07T12:01:59Z day: '16' department: - _id: KrCh doi: 10.1007/978-3-319-21690-4_9 ec_funded: 1 intvolume: ' 9206' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1504.07384 month: '07' oa: 1 oa_version: Preprint page: 140 - 157 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication_status: published publisher: Springer publist_id: '5560' quality_controlled: '1' related_material: record: - id: '5430' relation: earlier_version status: public - id: '5437' relation: earlier_version status: public - id: '821' relation: dissertation_contains status: public scopus_import: 1 status: public title: Faster algorithms for quantitative verification in constant treewidth graphs type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 9206 year: '2015' ... --- _id: '1714' abstract: - lang: eng text: 'We present a flexible framework for the automated competitive analysis of on-line scheduling algorithms for firm-deadline real-time tasks based on multi-objective graphs: Given a task set and an on-line scheduling algorithm specified as a labeled transition system, along with some optional safety, liveness, and/or limit-average constraints for the adversary, we automatically compute the competitive ratio of the algorithm w.r.t. A clairvoyant scheduler. We demonstrate the flexibility and power of our approach by comparing the competitive ratio of several on-line algorithms, including Dover, that have been proposed in the past, for various task sets. Our experimental results reveal that none of these algorithms is universally optimal, in the sense that there are task sets where other schedulers provide better performance. Our framework is hence a very useful design tool for selecting optimal algorithms for a given application.' article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Alexander full_name: Kößler, Alexander last_name: Kößler - first_name: Ulrich full_name: Schmid, Ulrich last_name: Schmid citation: ama: 'Chatterjee K, Pavlogiannis A, Kößler A, Schmid U. A framework for automated competitive analysis of on-line scheduling of firm-deadline tasks. In: Real-Time Systems Symposium. Vol 2015. IEEE; 2015:118-127. doi:10.1109/RTSS.2014.9' apa: 'Chatterjee, K., Pavlogiannis, A., Kößler, A., & Schmid, U. (2015). A framework for automated competitive analysis of on-line scheduling of firm-deadline tasks. In Real-Time Systems Symposium (Vol. 2015, pp. 118–127). Rome, Italy: IEEE. https://doi.org/10.1109/RTSS.2014.9' chicago: Chatterjee, Krishnendu, Andreas Pavlogiannis, Alexander Kößler, and Ulrich Schmid. “A Framework for Automated Competitive Analysis of On-Line Scheduling of Firm-Deadline Tasks.” In Real-Time Systems Symposium, 2015:118–27. IEEE, 2015. https://doi.org/10.1109/RTSS.2014.9. ieee: K. Chatterjee, A. Pavlogiannis, A. Kößler, and U. Schmid, “A framework for automated competitive analysis of on-line scheduling of firm-deadline tasks,” in Real-Time Systems Symposium, Rome, Italy, 2015, vol. 2015, no. January, pp. 118–127. ista: 'Chatterjee K, Pavlogiannis A, Kößler A, Schmid U. 2015. A framework for automated competitive analysis of on-line scheduling of firm-deadline tasks. Real-Time Systems Symposium. RTSS: Real-Time Systems Symposium vol. 2015, 118–127.' mla: Chatterjee, Krishnendu, et al. “A Framework for Automated Competitive Analysis of On-Line Scheduling of Firm-Deadline Tasks.” Real-Time Systems Symposium, vol. 2015, no. January, IEEE, 2015, pp. 118–27, doi:10.1109/RTSS.2014.9. short: K. Chatterjee, A. Pavlogiannis, A. Kößler, U. Schmid, in:, Real-Time Systems Symposium, IEEE, 2015, pp. 118–127. conference: end_date: 2014-12-05 location: Rome, Italy name: 'RTSS: Real-Time Systems Symposium' start_date: 2014-12-02 date_created: 2018-12-11T11:53:37Z date_published: 2015-01-15T00:00:00Z date_updated: 2023-09-07T12:01:59Z day: '15' department: - _id: KrCh doi: 10.1109/RTSS.2014.9 intvolume: ' 2015' issue: January language: - iso: eng month: '01' oa_version: None page: 118 - 127 publication: Real-Time Systems Symposium publication_status: published publisher: IEEE publist_id: '5417' quality_controlled: '1' related_material: record: - id: '5423' relation: earlier_version status: public - id: '821' relation: dissertation_contains status: public scopus_import: 1 status: public title: A framework for automated competitive analysis of on-line scheduling of firm-deadline tasks type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 2015 year: '2015' ... --- _id: '5441' abstract: - lang: eng text: We study algorithmic questions for concurrent systems where the transitions are labeled from a complete, closed semiring, and path properties are algebraic with semiring operations. The algebraic path properties can model dataflow analysis problems, the shortest path problem, and many other natural problems that arise in program analysis. We consider that each component of the concurrent system is a graph with constant treewidth, a property satisfied by the controlflow graphs of most programs. We allow for multiple possible queries, which arise naturally in demand driven dataflow analysis. The study of multiple queries allows us to consider the tradeoff between the resource usage of the one-time preprocessing and for each individual query. The traditional approach constructs the product graph of all components and applies the best-known graph algorithm on the product. In this approach, even the answer to a single query requires the transitive closure (i.e., the results of all possible queries), which provides no room for tradeoff between preprocessing and query time. Our main contributions are algorithms that significantly improve the worst-case running time of the traditional approach, and provide various tradeoffs depending on the number of queries. For example, in a concurrent system of two components, the traditional approach requires hexic time in the worst case for answering one query as well as computing the transitive closure, whereas we show that with one-time preprocessing in almost cubic time, each subsequent query can be answered in at most linear time, and even the transitive closure can be computed in almost quartic time. Furthermore, we establish conditional optimality results showing that the worst-case running time of our algorithms cannot be improved without achieving major breakthroughs in graph algorithms (i.e., improving the worst-case bound for the shortest path problem in general graphs). Preliminary experimental results show that our algorithms perform favorably on several benchmarks. alternative_title: - IST Austria Technical Report author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Amir full_name: Goharshady, Amir id: 391365CE-F248-11E8-B48F-1D18A9856A87 last_name: Goharshady orcid: 0000-0003-1702-6584 - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: Chatterjee K, Ibsen-Jensen R, Goharshady AK, Pavlogiannis A. Algorithms for Algebraic Path Properties in Concurrent Systems of Constant Treewidth Components. IST Austria; 2015. doi:10.15479/AT:IST-2015-340-v1-1 apa: Chatterjee, K., Ibsen-Jensen, R., Goharshady, A. K., & Pavlogiannis, A. (2015). Algorithms for algebraic path properties in concurrent systems of constant treewidth components. IST Austria. https://doi.org/10.15479/AT:IST-2015-340-v1-1 chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, Amir Kafshdar Goharshady, and Andreas Pavlogiannis. Algorithms for Algebraic Path Properties in Concurrent Systems of Constant Treewidth Components. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-340-v1-1. ieee: K. Chatterjee, R. Ibsen-Jensen, A. K. Goharshady, and A. Pavlogiannis, Algorithms for algebraic path properties in concurrent systems of constant treewidth components. IST Austria, 2015. ista: Chatterjee K, Ibsen-Jensen R, Goharshady AK, Pavlogiannis A. 2015. Algorithms for algebraic path properties in concurrent systems of constant treewidth components, IST Austria, 24p. mla: Chatterjee, Krishnendu, et al. Algorithms for Algebraic Path Properties in Concurrent Systems of Constant Treewidth Components. IST Austria, 2015, doi:10.15479/AT:IST-2015-340-v1-1. short: K. Chatterjee, R. Ibsen-Jensen, A.K. Goharshady, A. Pavlogiannis, Algorithms for Algebraic Path Properties in Concurrent Systems of Constant Treewidth Components, IST Austria, 2015. date_created: 2018-12-12T11:39:21Z date_published: 2015-07-11T00:00:00Z date_updated: 2023-09-19T14:36:19Z day: '11' ddc: - '000' department: - _id: KrCh doi: 10.15479/AT:IST-2015-340-v1-1 file: - access_level: open_access checksum: df383dc62c94d7b2ea639aba088a76c6 content_type: application/pdf creator: system date_created: 2018-12-12T11:54:09Z date_updated: 2020-07-14T12:46:56Z file_id: '5531' file_name: IST-2015-340-v1+1_main.pdf file_size: 861396 relation: main_file file_date_updated: 2020-07-14T12:46:56Z has_accepted_license: '1' language: - iso: eng month: '07' oa: 1 oa_version: Published Version page: '24' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '340' related_material: record: - id: '1437' relation: later_version status: public - id: '5442' relation: earlier_version status: public - id: '6009' relation: later_version status: public status: public title: Algorithms for algebraic path properties in concurrent systems of constant treewidth components type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '1689' abstract: - lang: eng text: We consider the problem of computing the set of initial states of a dynamical system such that there exists a control strategy to ensure that the trajectories satisfy a temporal logic specification with probability 1 (almost-surely). We focus on discrete-time, stochastic linear dynamics and specifications given as formulas of the Generalized Reactivity(1) fragment of Linear Temporal Logic over linear predicates in the states of the system. We propose a solution based on iterative abstraction-refinement, and turn-based 2-player probabilistic games. While the theoretical guarantee of our algorithm after any finite number of iterations is only a partial solution, we show that if our algorithm terminates, then the result is the set of satisfying initial states. Moreover, for any (partial) solution our algorithm synthesizes witness control strategies to ensure almost-sure satisfaction of the temporal logic specification. We demonstrate our approach on an illustrative case study. author: - first_name: Mária full_name: Svoreňová, Mária last_name: Svoreňová - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Ivana full_name: Cěrná, Ivana last_name: Cěrná - first_name: Cǎlin full_name: Belta, Cǎlin last_name: Belta citation: ama: 'Svoreňová M, Kretinsky J, Chmelik M, Chatterjee K, Cěrná I, Belta C. Temporal logic control for stochastic linear systems using abstraction refinement of probabilistic games. In: Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control. ACM; 2015:259-268. doi:10.1145/2728606.2728608' apa: 'Svoreňová, M., Kretinsky, J., Chmelik, M., Chatterjee, K., Cěrná, I., & Belta, C. (2015). Temporal logic control for stochastic linear systems using abstraction refinement of probabilistic games. In Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control (pp. 259–268). Seattle, WA, United States: ACM. https://doi.org/10.1145/2728606.2728608' chicago: 'Svoreňová, Mária, Jan Kretinsky, Martin Chmelik, Krishnendu Chatterjee, Ivana Cěrná, and Cǎlin Belta. “Temporal Logic Control for Stochastic Linear Systems Using Abstraction Refinement of Probabilistic Games.” In Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control, 259–68. ACM, 2015. https://doi.org/10.1145/2728606.2728608.' ieee: 'M. Svoreňová, J. Kretinsky, M. Chmelik, K. Chatterjee, I. Cěrná, and C. Belta, “Temporal logic control for stochastic linear systems using abstraction refinement of probabilistic games,” in Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control, Seattle, WA, United States, 2015, pp. 259–268.' ista: 'Svoreňová M, Kretinsky J, Chmelik M, Chatterjee K, Cěrná I, Belta C. 2015. Temporal logic control for stochastic linear systems using abstraction refinement of probabilistic games. Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control. HSCC: Hybrid Systems - Computation and Control, 259–268.' mla: 'Svoreňová, Mária, et al. “Temporal Logic Control for Stochastic Linear Systems Using Abstraction Refinement of Probabilistic Games.” Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control, ACM, 2015, pp. 259–68, doi:10.1145/2728606.2728608.' short: 'M. Svoreňová, J. Kretinsky, M. Chmelik, K. Chatterjee, I. Cěrná, C. Belta, in:, Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control, ACM, 2015, pp. 259–268.' conference: end_date: 2015-04-16 location: Seattle, WA, United States name: 'HSCC: Hybrid Systems - Computation and Control' start_date: 2015-04-14 date_created: 2018-12-11T11:53:29Z date_published: 2015-04-14T00:00:00Z date_updated: 2023-09-20T09:43:09Z day: '14' department: - _id: ToHe - _id: KrCh doi: 10.1145/2728606.2728608 ec_funded: 1 language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1410.5387 month: '04' oa: 1 oa_version: Preprint page: 259 - 268 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory publication: 'Proceedings of the 18th International Conference on Hybrid Systems: Computation and Control' publication_status: published publisher: ACM publist_id: '5456' related_material: record: - id: '1407' relation: later_version status: public scopus_import: 1 status: public title: Temporal logic control for stochastic linear systems using abstraction refinement of probabilistic games type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '1681' abstract: - lang: eng text: In many social situations, individuals endeavor to find the single best possible partner, but are constrained to evaluate the candidates in sequence. Examples include the search for mates, economic partnerships, or any other long-term ties where the choice to interact involves two parties. Surprisingly, however, previous theoretical work on mutual choice problems focuses on finding equilibrium solutions, while ignoring the evolutionary dynamics of decisions. Empirically, this may be of high importance, as some equilibrium solutions can never be reached unless the population undergoes radical changes and a sufficient number of individuals change their decisions simultaneously. To address this question, we apply a mutual choice sequential search problem in an evolutionary game-theoretical model that allows one to find solutions that are favored by evolution. As an example, we study the influence of sequential search on the evolutionary dynamics of cooperation. For this, we focus on the classic snowdrift game and the prisoner’s dilemma game. article_processing_charge: No article_type: original author: - first_name: Tadeas full_name: Priklopil, Tadeas id: 3C869AA0-F248-11E8-B48F-1D18A9856A87 last_name: Priklopil - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X citation: ama: Priklopil T, Chatterjee K. Evolution of decisions in population games with sequentially searching individuals. Games. 2015;6(4):413-437. doi:10.3390/g6040413 apa: Priklopil, T., & Chatterjee, K. (2015). Evolution of decisions in population games with sequentially searching individuals. Games. MDPI. https://doi.org/10.3390/g6040413 chicago: Priklopil, Tadeas, and Krishnendu Chatterjee. “Evolution of Decisions in Population Games with Sequentially Searching Individuals.” Games. MDPI, 2015. https://doi.org/10.3390/g6040413. ieee: T. Priklopil and K. Chatterjee, “Evolution of decisions in population games with sequentially searching individuals,” Games, vol. 6, no. 4. MDPI, pp. 413–437, 2015. ista: Priklopil T, Chatterjee K. 2015. Evolution of decisions in population games with sequentially searching individuals. Games. 6(4), 413–437. mla: Priklopil, Tadeas, and Krishnendu Chatterjee. “Evolution of Decisions in Population Games with Sequentially Searching Individuals.” Games, vol. 6, no. 4, MDPI, 2015, pp. 413–37, doi:10.3390/g6040413. short: T. Priklopil, K. Chatterjee, Games 6 (2015) 413–437. date_created: 2018-12-11T11:53:26Z date_published: 2015-09-29T00:00:00Z date_updated: 2023-10-17T11:42:52Z day: '29' ddc: - '000' department: - _id: NiBa - _id: KrCh doi: 10.3390/g6040413 ec_funded: 1 file: - access_level: open_access checksum: 912e1acbaf201100f447a43e4d5958bd content_type: application/pdf creator: system date_created: 2018-12-12T10:12:41Z date_updated: 2020-07-14T12:45:12Z file_id: '4959' file_name: IST-2016-448-v1+1_games-06-00413.pdf file_size: 518832 relation: main_file file_date_updated: 2020-07-14T12:45:12Z has_accepted_license: '1' intvolume: ' 6' issue: '4' language: - iso: eng month: '09' oa: 1 oa_version: Published Version page: 413 - 437 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Games publication_identifier: eissn: - 2073-4336 publication_status: published publisher: MDPI publist_id: '5467' pubrep_id: '448' quality_controlled: '1' scopus_import: '1' status: public title: Evolution of decisions in population games with sequentially searching individuals tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 6 year: '2015' ... --- _id: '1603' abstract: - lang: eng text: "For deterministic systems, a counterexample to a property can simply be an error trace, whereas counterexamples in probabilistic systems are necessarily more complex. For instance, a set of erroneous traces with a sufficient cumulative probability mass can be used. Since these are too large objects to understand and manipulate, compact representations such as subchains have been considered. In the case of probabilistic systems with non-determinism, the situation is even more complex. While a subchain for a given strategy (or scheduler, resolving non-determinism) is a straightforward choice, we take a different approach. Instead, we focus on the strategy itself, and extract the most important decisions it makes, and present its succinct representation.\r\nThe key tools we employ to achieve this are (1) introducing a concept of importance of a state w.r.t. the strategy, and (2) learning using decision trees. There are three main consequent advantages of our approach. Firstly, it exploits the quantitative information on states, stressing the more important decisions. Secondly, it leads to a greater variability and degree of freedom in representing the strategies. Thirdly, the representation uses a self-explanatory data structure. In summary, our approach produces more succinct and more explainable strategies, as opposed to e.g. binary decision diagrams. Finally, our experimental results show that we can extract several rules describing the strategy even for very large systems that do not fit in memory, and based on the rules explain the erroneous behaviour." acknowledgement: This research was funded in part by Austrian Science Fund (FWF) Grant No P 23499-N23, FWF NFN Grant No S11407-N23 (RiSE) and Z211-N23 (Wittgenstein Award), European Research Council (ERC) Grant No 279307 (Graph Games), ERC Grant No 267989 (QUAREM), the Czech Science Foundation Grant No P202/12/G061, and People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007–2013) REA Grant No 291734. alternative_title: - LNCS author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Andreas full_name: Fellner, Andreas id: 42BABFB4-F248-11E8-B48F-1D18A9856A87 last_name: Fellner - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 citation: ama: 'Brázdil T, Chatterjee K, Chmelik M, Fellner A, Kretinsky J. Counterexample explanation by learning small strategies in Markov decision processes. In: Vol 9206. Springer; 2015:158-177. doi:10.1007/978-3-319-21690-4_10' apa: 'Brázdil, T., Chatterjee, K., Chmelik, M., Fellner, A., & Kretinsky, J. (2015). Counterexample explanation by learning small strategies in Markov decision processes (Vol. 9206, pp. 158–177). Presented at the CAV: Computer Aided Verification, San Francisco, CA, United States: Springer. https://doi.org/10.1007/978-3-319-21690-4_10' chicago: Brázdil, Tomáš, Krishnendu Chatterjee, Martin Chmelik, Andreas Fellner, and Jan Kretinsky. “Counterexample Explanation by Learning Small Strategies in Markov Decision Processes,” 9206:158–77. Springer, 2015. https://doi.org/10.1007/978-3-319-21690-4_10. ieee: 'T. Brázdil, K. Chatterjee, M. Chmelik, A. Fellner, and J. Kretinsky, “Counterexample explanation by learning small strategies in Markov decision processes,” presented at the CAV: Computer Aided Verification, San Francisco, CA, United States, 2015, vol. 9206, pp. 158–177.' ista: 'Brázdil T, Chatterjee K, Chmelik M, Fellner A, Kretinsky J. 2015. Counterexample explanation by learning small strategies in Markov decision processes. CAV: Computer Aided Verification, LNCS, vol. 9206, 158–177.' mla: Brázdil, Tomáš, et al. Counterexample Explanation by Learning Small Strategies in Markov Decision Processes. Vol. 9206, Springer, 2015, pp. 158–77, doi:10.1007/978-3-319-21690-4_10. short: T. Brázdil, K. Chatterjee, M. Chmelik, A. Fellner, J. Kretinsky, in:, Springer, 2015, pp. 158–177. conference: end_date: 2015-07-24 location: San Francisco, CA, United States name: 'CAV: Computer Aided Verification' start_date: 2015-07-18 date_created: 2018-12-11T11:52:58Z date_published: 2015-07-16T00:00:00Z date_updated: 2024-02-21T13:52:07Z day: '16' department: - _id: KrCh - _id: ToHe doi: 10.1007/978-3-319-21690-4_10 ec_funded: 1 intvolume: ' 9206' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1502.02834 month: '07' oa: 1 oa_version: Preprint page: 158 - 177 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_identifier: eisbn: - 978-3-319-21690-4 publication_status: published publisher: Springer publist_id: '5564' quality_controlled: '1' related_material: record: - id: '5549' relation: research_paper status: public scopus_import: 1 status: public title: Counterexample explanation by learning small strategies in Markov decision processes type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 9206 year: '2015' ... --- _id: '5549' abstract: - lang: eng text: "This repository contains the experimental part of the CAV 2015 publication Counterexample Explanation by Learning Small Strategies in Markov Decision Processes.\r\nWe extended the probabilistic model checker PRISM to represent strategies of Markov Decision Processes as Decision Trees.\r\nThe archive contains a java executable version of the extended tool (prism_dectree.jar) together with a few examples of the PRISM benchmark library.\r\nTo execute the program, please have a look at the README.txt, which provides instructions and further information on the archive.\r\nThe archive contains scripts that (if run often enough) reproduces the data presented in the publication." article_processing_charge: No author: - first_name: Andreas full_name: Fellner, Andreas id: 42BABFB4-F248-11E8-B48F-1D18A9856A87 last_name: Fellner citation: ama: 'Fellner A. Experimental part of CAV 2015 publication: Counterexample Explanation by Learning Small Strategies in Markov Decision Processes. 2015. doi:10.15479/AT:ISTA:28' apa: 'Fellner, A. (2015). Experimental part of CAV 2015 publication: Counterexample Explanation by Learning Small Strategies in Markov Decision Processes. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:28' chicago: 'Fellner, Andreas. “Experimental Part of CAV 2015 Publication: Counterexample Explanation by Learning Small Strategies in Markov Decision Processes.” Institute of Science and Technology Austria, 2015. https://doi.org/10.15479/AT:ISTA:28.' ieee: 'A. Fellner, “Experimental part of CAV 2015 publication: Counterexample Explanation by Learning Small Strategies in Markov Decision Processes.” Institute of Science and Technology Austria, 2015.' ista: 'Fellner A. 2015. Experimental part of CAV 2015 publication: Counterexample Explanation by Learning Small Strategies in Markov Decision Processes, Institute of Science and Technology Austria, 10.15479/AT:ISTA:28.' mla: 'Fellner, Andreas. Experimental Part of CAV 2015 Publication: Counterexample Explanation by Learning Small Strategies in Markov Decision Processes. Institute of Science and Technology Austria, 2015, doi:10.15479/AT:ISTA:28.' short: A. Fellner, (2015). contributor: - first_name: Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky datarep_id: '28' date_created: 2018-12-12T12:31:29Z date_published: 2015-08-13T00:00:00Z date_updated: 2024-02-21T13:52:07Z day: '13' ddc: - '004' department: - _id: KrCh - _id: ToHe doi: 10.15479/AT:ISTA:28 ec_funded: 1 file: - access_level: open_access checksum: b8bcb43c0893023cda66c1b69c16ac62 content_type: application/zip creator: system date_created: 2018-12-12T13:02:31Z date_updated: 2020-07-14T12:47:00Z file_id: '5597' file_name: IST-2015-28-v1+2_Fellner_DataRep.zip file_size: 49557109 relation: main_file file_date_updated: 2020-07-14T12:47:00Z has_accepted_license: '1' keyword: - Markov Decision Process - Decision Tree - Probabilistic Verification - Counterexample Explanation license: https://creativecommons.org/publicdomain/zero/1.0/ month: '08' oa: 1 oa_version: Published Version project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publisher: Institute of Science and Technology Austria publist_id: '5564' related_material: record: - id: '1603' relation: popular_science status: public status: public title: 'Experimental part of CAV 2015 publication: Counterexample Explanation by Learning Small Strategies in Markov Decision Processes' tmp: image: /images/cc_0.png legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode name: Creative Commons Public Domain Dedication (CC0 1.0) short: CC0 (1.0) type: research_data user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2015' ... --- _id: '10884' abstract: - lang: eng text: "We revisit the parameterized model checking problem for token-passing systems and specifications in indexed CTL  ∗ \\X. Emerson and Namjoshi (1995, 2003) have shown that parameterized model checking of indexed CTL  ∗ \\X in uni-directional token rings can be reduced to checking rings up to some cutoff size. Clarke et al. (2004) have shown a similar result for general topologies and indexed LTL \\X, provided processes cannot choose the directions for sending or receiving the token.\r\nWe unify and substantially extend these results by systematically exploring fragments of indexed CTL  ∗ \\X with respect to general topologies. For each fragment we establish whether a cutoff exists, and for some concrete topologies, such as rings, cliques and stars, we infer small cutoffs. Finally, we show that the problem becomes undecidable, and thus no cutoffs exist, if processes are allowed to choose the directions in which they send or from which they receive the token." acknowledgement: "This work was supported by the Austrian Science Fund through grant P23499-N23\r\nand through the RiSE network (S11403, S11405, S11406, S11407-N23); ERC Starting Grant (279307: Graph Games); Vienna Science and Technology Fund (WWTF)\r\ngrants PROSEED, ICT12-059, and VRG11-005." alternative_title: - LNCS article_processing_charge: No author: - first_name: Benjamin full_name: Aminof, Benjamin id: 4A55BD00-F248-11E8-B48F-1D18A9856A87 last_name: Aminof - first_name: Swen full_name: Jacobs, Swen last_name: Jacobs - first_name: Ayrat full_name: Khalimov, Ayrat last_name: Khalimov - first_name: Sasha full_name: Rubin, Sasha id: 2EC51194-F248-11E8-B48F-1D18A9856A87 last_name: Rubin citation: ama: 'Aminof B, Jacobs S, Khalimov A, Rubin S. Parameterized model checking of token-passing systems. In: Verification, Model Checking, and Abstract Interpretation. Vol 8318. Springer Nature; 2014:262-281. doi:10.1007/978-3-642-54013-4_15' apa: 'Aminof, B., Jacobs, S., Khalimov, A., & Rubin, S. (2014). Parameterized model checking of token-passing systems. In Verification, Model Checking, and Abstract Interpretation (Vol. 8318, pp. 262–281). San Diego, CA, United States: Springer Nature. https://doi.org/10.1007/978-3-642-54013-4_15' chicago: Aminof, Benjamin, Swen Jacobs, Ayrat Khalimov, and Sasha Rubin. “Parameterized Model Checking of Token-Passing Systems.” In Verification, Model Checking, and Abstract Interpretation, 8318:262–81. Springer Nature, 2014. https://doi.org/10.1007/978-3-642-54013-4_15. ieee: B. Aminof, S. Jacobs, A. Khalimov, and S. Rubin, “Parameterized model checking of token-passing systems,” in Verification, Model Checking, and Abstract Interpretation, San Diego, CA, United States, 2014, vol. 8318, pp. 262–281. ista: 'Aminof B, Jacobs S, Khalimov A, Rubin S. 2014. Parameterized model checking of token-passing systems. Verification, Model Checking, and Abstract Interpretation. VMCAI: Verifcation, Model Checking, and Abstract Interpretation, LNCS, vol. 8318, 262–281.' mla: Aminof, Benjamin, et al. “Parameterized Model Checking of Token-Passing Systems.” Verification, Model Checking, and Abstract Interpretation, vol. 8318, Springer Nature, 2014, pp. 262–81, doi:10.1007/978-3-642-54013-4_15. short: B. Aminof, S. Jacobs, A. Khalimov, S. Rubin, in:, Verification, Model Checking, and Abstract Interpretation, Springer Nature, 2014, pp. 262–281. conference: end_date: 2014-01-21 location: San Diego, CA, United States name: 'VMCAI: Verifcation, Model Checking, and Abstract Interpretation' start_date: 2014-01-19 date_created: 2022-03-18T13:01:22Z date_published: 2014-01-30T00:00:00Z date_updated: 2022-05-17T08:36:01Z day: '30' department: - _id: KrCh doi: 10.1007/978-3-642-54013-4_15 ec_funded: 1 external_id: arxiv: - '1311.4425' intvolume: ' 8318' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1311.4425' month: '01' oa: 1 oa_version: Preprint page: 262-281 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Verification, Model Checking, and Abstract Interpretation publication_identifier: eisbn: - '9783642540134' eissn: - 1611-3349 isbn: - '9783642540127' issn: - 0302-9743 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Parameterized model checking of token-passing systems type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 8318 year: '2014' ... --- _id: '1375' abstract: - lang: eng text: 'We consider directed graphs where each edge is labeled with an integer weight and study the fundamental algorithmic question of computing the value of a cycle with minimum mean weight. Our contributions are twofold: (1) First we show that the algorithmic question is reducible to the problem of a logarithmic number of min-plus matrix multiplications of n×n-matrices, where n is the number of vertices of the graph. (2) Second, when the weights are nonnegative, we present the first (1+ε)-approximation algorithm for the problem and the running time of our algorithm is Õ(nωlog3(nW/ε)/ε),1 where O(nω) is the time required for the classic n×n-matrix multiplication and W is the maximum value of the weights. With an additional O(log(nW/ε)) factor in space a cycle with approximately optimal weight can be computed within the same time bound.' article_processing_charge: No article_type: original author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Monika H full_name: Henzinger, Monika H id: 540c9bbd-f2de-11ec-812d-d04a5be85630 last_name: Henzinger orcid: 0000-0002-5008-6530 - first_name: Sebastian full_name: Krinninger, Sebastian last_name: Krinninger - first_name: Veronika full_name: Loitzenbauer, Veronika last_name: Loitzenbauer - first_name: Michael full_name: Raskin, Michael last_name: Raskin citation: ama: Chatterjee K, Henzinger MH, Krinninger S, Loitzenbauer V, Raskin M. Approximating the minimum cycle mean. Theoretical Computer Science. 2014;547(C):104-116. doi:10.1016/j.tcs.2014.06.031 apa: Chatterjee, K., Henzinger, M. H., Krinninger, S., Loitzenbauer, V., & Raskin, M. (2014). Approximating the minimum cycle mean. Theoretical Computer Science. Elsevier. https://doi.org/10.1016/j.tcs.2014.06.031 chicago: Chatterjee, Krishnendu, Monika H Henzinger, Sebastian Krinninger, Veronika Loitzenbauer, and Michael Raskin. “Approximating the Minimum Cycle Mean.” Theoretical Computer Science. Elsevier, 2014. https://doi.org/10.1016/j.tcs.2014.06.031. ieee: K. Chatterjee, M. H. Henzinger, S. Krinninger, V. Loitzenbauer, and M. Raskin, “Approximating the minimum cycle mean,” Theoretical Computer Science, vol. 547, no. C. Elsevier, pp. 104–116, 2014. ista: Chatterjee K, Henzinger MH, Krinninger S, Loitzenbauer V, Raskin M. 2014. Approximating the minimum cycle mean. Theoretical Computer Science. 547(C), 104–116. mla: Chatterjee, Krishnendu, et al. “Approximating the Minimum Cycle Mean.” Theoretical Computer Science, vol. 547, no. C, Elsevier, 2014, pp. 104–16, doi:10.1016/j.tcs.2014.06.031. short: K. Chatterjee, M.H. Henzinger, S. Krinninger, V. Loitzenbauer, M. Raskin, Theoretical Computer Science 547 (2014) 104–116. date_created: 2018-12-11T11:51:40Z date_published: 2014-08-28T00:00:00Z date_updated: 2022-09-09T11:50:58Z day: '28' department: - _id: KrCh doi: 10.1016/j.tcs.2014.06.031 ec_funded: 1 external_id: arxiv: - '1307.4473' intvolume: ' 547' issue: C language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1307.4473 month: '08' oa: 1 oa_version: Preprint page: 104 - 116 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Theoretical Computer Science publication_status: published publisher: Elsevier publist_id: '5836' quality_controlled: '1' scopus_import: '1' status: public title: Approximating the minimum cycle mean type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 547 year: '2014' ... --- _id: '1853' abstract: - lang: eng text: Wireless sensor networks (WSNs) composed of low-power, low-cost sensor nodes are expected to form the backbone of future intelligent networks for a broad range of civil, industrial and military applications. These sensor nodes are often deployed through random spreading, and function in dynamic environments. Many applications of WSNs such as pollution tracking, forest fire detection, and military surveillance require knowledge of the location of constituent nodes. But the use of technologies such as GPS on all nodes is prohibitive due to power and cost constraints. So, the sensor nodes need to autonomously determine their locations. Most localization techniques use anchor nodes with known locations to determine the position of remaining nodes. Localization techniques have two conflicting requirements. On one hand, an ideal localization technique should be computationally simple and on the other hand, it must be resistant to attacks that compromise anchor nodes. In this paper, we propose a computationally light-weight game theoretic secure localization technique and demonstrate its effectiveness in comparison to existing techniques. author: - first_name: Susmit full_name: Jha, Susmit last_name: Jha - first_name: Stavros full_name: Tripakis, Stavros last_name: Tripakis - first_name: Sanjit full_name: Seshia, Sanjit last_name: Seshia - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X citation: ama: 'Jha S, Tripakis S, Seshia S, Chatterjee K. Game theoretic secure localization in wireless sensor networks. In: IEEE; 2014:85-90. doi:10.1109/IOT.2014.7030120' apa: 'Jha, S., Tripakis, S., Seshia, S., & Chatterjee, K. (2014). Game theoretic secure localization in wireless sensor networks (pp. 85–90). Presented at the IOT: Internet of Things, Cambridge, USA: IEEE. https://doi.org/10.1109/IOT.2014.7030120' chicago: Jha, Susmit, Stavros Tripakis, Sanjit Seshia, and Krishnendu Chatterjee. “Game Theoretic Secure Localization in Wireless Sensor Networks,” 85–90. IEEE, 2014. https://doi.org/10.1109/IOT.2014.7030120. ieee: 'S. Jha, S. Tripakis, S. Seshia, and K. Chatterjee, “Game theoretic secure localization in wireless sensor networks,” presented at the IOT: Internet of Things, Cambridge, USA, 2014, pp. 85–90.' ista: 'Jha S, Tripakis S, Seshia S, Chatterjee K. 2014. Game theoretic secure localization in wireless sensor networks. IOT: Internet of Things, 85–90.' mla: Jha, Susmit, et al. Game Theoretic Secure Localization in Wireless Sensor Networks. IEEE, 2014, pp. 85–90, doi:10.1109/IOT.2014.7030120. short: S. Jha, S. Tripakis, S. Seshia, K. Chatterjee, in:, IEEE, 2014, pp. 85–90. conference: end_date: 2014-10-08 location: Cambridge, USA name: 'IOT: Internet of Things' start_date: 2014-10-06 date_created: 2018-12-11T11:54:22Z date_published: 2014-02-03T00:00:00Z date_updated: 2021-01-12T06:53:38Z day: '03' department: - _id: KrCh doi: 10.1109/IOT.2014.7030120 language: - iso: eng month: '02' oa_version: None page: 85 - 90 publication_status: published publisher: IEEE publist_id: '5247' quality_controlled: '1' status: public title: Game theoretic secure localization in wireless sensor networks type: conference user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 year: '2014' ... --- _id: '1884' abstract: - lang: eng text: Unbiased high-throughput massively parallel sequencing methods have transformed the process of discovery of novel putative driver gene mutations in cancer. In chronic lymphocytic leukemia (CLL), these methods have yielded several unexpected findings, including the driver genes SF3B1, NOTCH1 and POT1. Recent analysis, utilizing down-sampling of existing datasets, has shown that the discovery process of putative drivers is far from complete across cancer. In CLL, while driver gene mutations affecting >10% of patients were efficiently discovered with previously published CLL cohorts of up to 160 samples subjected to whole exome sequencing (WES), this sample size has only 0.78 power to detect drivers affecting 5% of patients, and only 0.12 power for drivers affecting 2% of patients. These calculations emphasize the need to apply unbiased WES to larger patient cohorts. author: - first_name: Dan full_name: Landau, Dan last_name: Landau - first_name: Chip full_name: Stewart, Chip last_name: Stewart - first_name: Johannes full_name: Reiter, Johannes id: 4A918E98-F248-11E8-B48F-1D18A9856A87 last_name: Reiter orcid: 0000-0002-0170-7353 - first_name: Michael full_name: Lawrence, Michael last_name: Lawrence - first_name: Carrie full_name: Sougnez, Carrie last_name: Sougnez - first_name: Jennifer full_name: Brown, Jennifer last_name: Brown - first_name: Armando full_name: Lopez Guillermo, Armando last_name: Lopez Guillermo - first_name: Stacey full_name: Gabriel, Stacey last_name: Gabriel - first_name: Eric full_name: Lander, Eric last_name: Lander - first_name: Donna full_name: Neuberg, Donna last_name: Neuberg - first_name: Carlos full_name: López Otín, Carlos last_name: López Otín - first_name: Elias full_name: Campo, Elias last_name: Campo - first_name: Gad full_name: Getz, Gad last_name: Getz - first_name: Catherine full_name: Wu, Catherine last_name: Wu citation: ama: 'Landau D, Stewart C, Reiter J, et al. Novel putative driver gene mutations in chronic lymphocytic leukemia (CLL): results from a combined analysis of whole exome sequencing of 262 primary CLL aamples. Blood. 2014;124(21):1952-1952.' apa: 'Landau, D., Stewart, C., Reiter, J., Lawrence, M., Sougnez, C., Brown, J., … Wu, C. (2014). Novel putative driver gene mutations in chronic lymphocytic leukemia (CLL): results from a combined analysis of whole exome sequencing of 262 primary CLL aamples. Blood. American Society of Hematology.' chicago: 'Landau, Dan, Chip Stewart, Johannes Reiter, Michael Lawrence, Carrie Sougnez, Jennifer Brown, Armando Lopez Guillermo, et al. “Novel Putative Driver Gene Mutations in Chronic Lymphocytic Leukemia (CLL): Results from a Combined Analysis of Whole Exome Sequencing of 262 Primary CLL Aamples.” Blood. American Society of Hematology, 2014.' ieee: 'D. Landau et al., “Novel putative driver gene mutations in chronic lymphocytic leukemia (CLL): results from a combined analysis of whole exome sequencing of 262 primary CLL aamples,” Blood, vol. 124, no. 21. American Society of Hematology, pp. 1952–1952, 2014.' ista: 'Landau D, Stewart C, Reiter J, Lawrence M, Sougnez C, Brown J, Lopez Guillermo A, Gabriel S, Lander E, Neuberg D, López Otín C, Campo E, Getz G, Wu C. 2014. Novel putative driver gene mutations in chronic lymphocytic leukemia (CLL): results from a combined analysis of whole exome sequencing of 262 primary CLL aamples. Blood. 124(21), 1952–1952.' mla: 'Landau, Dan, et al. “Novel Putative Driver Gene Mutations in Chronic Lymphocytic Leukemia (CLL): Results from a Combined Analysis of Whole Exome Sequencing of 262 Primary CLL Aamples.” Blood, vol. 124, no. 21, American Society of Hematology, 2014, pp. 1952–1952.' short: D. Landau, C. Stewart, J. Reiter, M. Lawrence, C. Sougnez, J. Brown, A. Lopez Guillermo, S. Gabriel, E. Lander, D. Neuberg, C. López Otín, E. Campo, G. Getz, C. Wu, Blood 124 (2014) 1952–1952. date_created: 2018-12-11T11:54:32Z date_published: 2014-12-04T00:00:00Z date_updated: 2021-01-12T06:53:50Z day: '04' department: - _id: KrCh intvolume: ' 124' issue: '21' language: - iso: eng main_file_link: - url: http://www.bloodjournal.org/content/124/21/1952?sso-checked=true month: '12' oa_version: None page: 1952 - 1952 publication: Blood publication_status: published publisher: American Society of Hematology publist_id: '5211' status: public title: 'Novel putative driver gene mutations in chronic lymphocytic leukemia (CLL): results from a combined analysis of whole exome sequencing of 262 primary CLL aamples' type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 124 year: '2014' ... --- _id: '2027' abstract: - lang: eng text: We present a general framework for applying machine-learning algorithms to the verification of Markov decision processes (MDPs). The primary goal of these techniques is to improve performance by avoiding an exhaustive exploration of the state space. Our framework focuses on probabilistic reachability, which is a core property for verification, and is illustrated through two distinct instantiations. The first assumes that full knowledge of the MDP is available, and performs a heuristic-driven partial exploration of the model, yielding precise lower and upper bounds on the required probability. The second tackles the case where we may only sample the MDP, and yields probabilistic guarantees, again in terms of both the lower and upper bounds, which provides efficient stopping criteria for the approximation. The latter is the first extension of statistical model checking for unbounded properties inMDPs. In contrast with other related techniques, our approach is not restricted to time-bounded (finite-horizon) or discounted properties, nor does it assume any particular properties of the MDP. We also show how our methods extend to LTL objectives. We present experimental results showing the performance of our framework on several examples. acknowledgement: This research was funded in part by the European Research Council (ERC) under grant agreement 246967 (VERIWARE), by the EU FP7 project HIERATIC, by the Czech Science Foundation grant No P202/12/P612, by EPSRC project EP/K038575/1. alternative_title: - LNCS author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Vojtěch full_name: Forejt, Vojtěch last_name: Forejt - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Marta full_name: Kwiatkowska, Marta last_name: Kwiatkowska - first_name: David full_name: Parker, David last_name: Parker - first_name: Mateusz full_name: Ujma, Mateusz last_name: Ujma citation: ama: 'Brázdil T, Chatterjee K, Chmelik M, et al. Verification of markov decision processes using learning algorithms. In: Cassez F, Raskin J-F, eds. Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol 8837. Society of Industrial and Applied Mathematics; 2014:98-114. doi:10.1007/978-3-319-11936-6_8' apa: 'Brázdil, T., Chatterjee, K., Chmelik, M., Forejt, V., Kretinsky, J., Kwiatkowska, M., … Ujma, M. (2014). Verification of markov decision processes using learning algorithms. In F. Cassez & J.-F. Raskin (Eds.), Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 8837, pp. 98–114). Sydney, Australia: Society of Industrial and Applied Mathematics. https://doi.org/10.1007/978-3-319-11936-6_8' chicago: Brázdil, Tomáš, Krishnendu Chatterjee, Martin Chmelik, Vojtěch Forejt, Jan Kretinsky, Marta Kwiatkowska, David Parker, and Mateusz Ujma. “Verification of Markov Decision Processes Using Learning Algorithms.” In Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), edited by Franck Cassez and Jean-François Raskin, 8837:98–114. Society of Industrial and Applied Mathematics, 2014. https://doi.org/10.1007/978-3-319-11936-6_8. ieee: T. Brázdil et al., “Verification of markov decision processes using learning algorithms,” in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Sydney, Australia, 2014, vol. 8837, pp. 98–114. ista: 'Brázdil T, Chatterjee K, Chmelik M, Forejt V, Kretinsky J, Kwiatkowska M, Parker D, Ujma M. 2014. Verification of markov decision processes using learning algorithms. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). ALENEX: Algorithm Engineering and Experiments, LNCS, vol. 8837, 98–114.' mla: Brázdil, Tomáš, et al. “Verification of Markov Decision Processes Using Learning Algorithms.” Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), edited by Franck Cassez and Jean-François Raskin, vol. 8837, Society of Industrial and Applied Mathematics, 2014, pp. 98–114, doi:10.1007/978-3-319-11936-6_8. short: T. Brázdil, K. Chatterjee, M. Chmelik, V. Forejt, J. Kretinsky, M. Kwiatkowska, D. Parker, M. Ujma, in:, F. Cassez, J.-F. Raskin (Eds.), Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Society of Industrial and Applied Mathematics, 2014, pp. 98–114. conference: end_date: 2014-11-07 location: Sydney, Australia name: 'ALENEX: Algorithm Engineering and Experiments' start_date: 2014-11-03 date_created: 2018-12-11T11:55:17Z date_published: 2014-11-01T00:00:00Z date_updated: 2021-01-12T06:54:49Z day: '01' department: - _id: KrCh - _id: ToHe doi: 10.1007/978-3-319-11936-6_8 ec_funded: 1 editor: - first_name: Franck full_name: Cassez, Franck last_name: Cassez - first_name: Jean-François full_name: Raskin, Jean-François last_name: Raskin intvolume: ' 8837' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1402.2967 month: '11' oa: 1 oa_version: Submitted Version page: 98 - 114 project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 26241A12-B435-11E9-9278-68D0E5697425 grant_number: '24696' name: LIGHT-REGULATED LIGAND TRAPS FOR SPATIO-TEMPORAL INHIBITION OF CELL SIGNALING - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25F5A88A-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11402-N23 name: Moderne Concurrency Paradigms - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: ' Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)' publication_status: published publisher: Society of Industrial and Applied Mathematics publist_id: '5046' quality_controlled: '1' status: public title: Verification of markov decision processes using learning algorithms type: conference user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 8837 year: '2014' ... --- _id: '2053' abstract: - lang: eng text: In contrast to the usual understanding of probabilistic systems as stochastic processes, recently these systems have also been regarded as transformers of probabilities. In this paper, we give a natural definition of strong bisimulation for probabilistic systems corresponding to this view that treats probability distributions as first-class citizens. Our definition applies in the same way to discrete systems as well as to systems with uncountable state and action spaces. Several examples demonstrate that our definition refines the understanding of behavioural equivalences of probabilistic systems. In particular, it solves a longstanding open problem concerning the representation of memoryless continuous time by memoryfull continuous time. Finally, we give algorithms for computing this bisimulation not only for finite but also for classes of uncountably infinite systems. acknowledgement: This work is supported by the EU 7th Framework Programme under grant agreements 295261 (MEALS) and 318490 (SENSATION), Czech Science Foundation under grant agreement P202/12/G061, the DFG Transregional Collaborative Research Centre SFB/TR 14 AVACS, and by the CAS/SAFEA International Partnership Program for Creative Research Teams. alternative_title: - LNCS author: - first_name: Holger full_name: Hermanns, Holger last_name: Hermanns - first_name: Jan full_name: Krčál, Jan last_name: Krčál - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 citation: ama: 'Hermanns H, Krčál J, Kretinsky J. Probabilistic bisimulation: Naturally on distributions. In: Baldan P, Gorla D, eds. Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol 8704. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2014:249-265. doi:10.1007/978-3-662-44584-6_18' apa: 'Hermanns, H., Krčál, J., & Kretinsky, J. (2014). Probabilistic bisimulation: Naturally on distributions. In P. Baldan & D. Gorla (Eds.), Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 8704, pp. 249–265). Rome, Italy: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.1007/978-3-662-44584-6_18' chicago: 'Hermanns, Holger, Jan Krčál, and Jan Kretinsky. “Probabilistic Bisimulation: Naturally on Distributions.” In Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), edited by Paolo Baldan and Daniele Gorla, 8704:249–65. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014. https://doi.org/10.1007/978-3-662-44584-6_18.' ieee: 'H. Hermanns, J. Krčál, and J. Kretinsky, “Probabilistic bisimulation: Naturally on distributions,” in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Rome, Italy, 2014, vol. 8704, pp. 249–265.' ista: 'Hermanns H, Krčál J, Kretinsky J. 2014. Probabilistic bisimulation: Naturally on distributions. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). CONCUR: Concurrency Theory, LNCS, vol. 8704, 249–265.' mla: 'Hermanns, Holger, et al. “Probabilistic Bisimulation: Naturally on Distributions.” Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), edited by Paolo Baldan and Daniele Gorla, vol. 8704, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014, pp. 249–65, doi:10.1007/978-3-662-44584-6_18.' short: H. Hermanns, J. Krčál, J. Kretinsky, in:, P. Baldan, D. Gorla (Eds.), Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014, pp. 249–265. conference: end_date: 2014-09-05 location: Rome, Italy name: 'CONCUR: Concurrency Theory' start_date: 2014-09-02 date_created: 2018-12-11T11:55:27Z date_published: 2014-09-01T00:00:00Z date_updated: 2021-01-12T06:55:00Z day: '01' department: - _id: ToHe - _id: KrCh doi: 10.1007/978-3-662-44584-6_18 ec_funded: 1 editor: - first_name: Paolo full_name: Baldan, Paolo last_name: Baldan - first_name: Daniele full_name: Gorla, Daniele last_name: Gorla intvolume: ' 8704' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1404.5084 month: '09' oa: 1 oa_version: Submitted Version page: 249 - 265 project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25F5A88A-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11402-N23 name: Moderne Concurrency Paradigms publication: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '4993' status: public title: 'Probabilistic bisimulation: Naturally on distributions' type: conference user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 8704 year: '2014' ... --- _id: '2052' abstract: - lang: eng text: A standard technique for solving the parameterized model checking problem is to reduce it to the classic model checking problem of finitely many finite-state systems. This work considers some of the theoretical power and limitations of this technique. We focus on concurrent systems in which processes communicate via pairwise rendezvous, as well as the special cases of disjunctive guards and token passing; specifications are expressed in indexed temporal logic without the next operator; and the underlying network topologies are generated by suitable Monadic Second Order Logic formulas and graph operations. First, we settle the exact computational complexity of the parameterized model checking problem for some of our concurrent systems, and establish new decidability results for others. Second, we consider the cases that model checking the parameterized system can be reduced to model checking some fixed number of processes, the number is known as a cutoff. We provide many cases for when such cutoffs can be computed, establish lower bounds on the size of such cutoffs, and identify cases where no cutoff exists. Third, we consider cases for which the parameterized system is equivalent to a single finite-state system (more precisely a Büchi word automaton), and establish tight bounds on the sizes of such automata. acknowledgement: The second, third, fourth and fifth authors were supported by the Austrian National Research Network S11403-N23 (RiSE) of the Austrian Science Fund (FWF) and by the Vienna Science and Technology Fund (WWTF) through grants PROSEED, ICT12-059, and VRG11-005. alternative_title: - LNCS author: - first_name: Benjamin full_name: Aminof, Benjamin id: 4A55BD00-F248-11E8-B48F-1D18A9856A87 last_name: Aminof - first_name: Tomer full_name: Kotek, Tomer last_name: Kotek - first_name: Sacha full_name: Rubin, Sacha last_name: Rubin - first_name: Francesco full_name: Spegni, Francesco last_name: Spegni - first_name: Helmut full_name: Veith, Helmut last_name: Veith citation: ama: 'Aminof B, Kotek T, Rubin S, Spegni F, Veith H. Parameterized model checking of rendezvous systems. In: Baldan P, Gorla D, eds. Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol 8704. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2014:109-124. doi:10.1007/978-3-662-44584-6_9' apa: 'Aminof, B., Kotek, T., Rubin, S., Spegni, F., & Veith, H. (2014). Parameterized model checking of rendezvous systems. In P. Baldan & D. Gorla (Eds.), Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 8704, pp. 109–124). Rome, Italy: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.1007/978-3-662-44584-6_9' chicago: Aminof, Benjamin, Tomer Kotek, Sacha Rubin, Francesco Spegni, and Helmut Veith. “Parameterized Model Checking of Rendezvous Systems.” In Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), edited by Paolo Baldan and Daniele Gorla, 8704:109–24. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014. https://doi.org/10.1007/978-3-662-44584-6_9. ieee: B. Aminof, T. Kotek, S. Rubin, F. Spegni, and H. Veith, “Parameterized model checking of rendezvous systems,” in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Rome, Italy, 2014, vol. 8704, pp. 109–124. ista: 'Aminof B, Kotek T, Rubin S, Spegni F, Veith H. 2014. Parameterized model checking of rendezvous systems. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). CONCUR: Concurrency Theory, LNCS, vol. 8704, 109–124.' mla: Aminof, Benjamin, et al. “Parameterized Model Checking of Rendezvous Systems.” Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), edited by Paolo Baldan and Daniele Gorla, vol. 8704, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014, pp. 109–24, doi:10.1007/978-3-662-44584-6_9. short: B. Aminof, T. Kotek, S. Rubin, F. Spegni, H. Veith, in:, P. Baldan, D. Gorla (Eds.), Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014, pp. 109–124. conference: end_date: 2014-09-05 location: Rome, Italy name: 'CONCUR: Concurrency Theory' start_date: 2014-09-02 date_created: 2018-12-11T11:55:26Z date_published: 2014-09-01T00:00:00Z date_updated: 2021-01-12T06:54:59Z day: '01' department: - _id: KrCh doi: 10.1007/978-3-662-44584-6_9 editor: - first_name: Paolo full_name: Baldan, Paolo last_name: Baldan - first_name: Daniele full_name: Gorla, Daniele last_name: Gorla intvolume: ' 8704' language: - iso: eng month: '09' oa_version: None page: 109 - 124 publication: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '4994' quality_controlled: '1' status: public title: Parameterized model checking of rendezvous systems type: conference user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 8704 year: '2014' ...