[{"file_date_updated":"2022-02-07T14:57:59Z","date_updated":"2025-04-14T07:52:45Z","oa_version":"Published Version","ddc":["570"],"volume":12,"publication":"Scientific Reports","title":"Infection dynamics of COVID-19 virus under lockdown and reopening","author":[{"orcid":"0000-0002-1419-3267","id":"130759D2-D7DD-11E9-87D2-DE0DE6697425","full_name":"Svoboda, Jakub","first_name":"Jakub","last_name":"Svoboda"},{"first_name":"Josef","last_name":"Tkadlec","full_name":"Tkadlec, Josef"},{"full_name":"Pavlogiannis, Andreas","id":"49704004-F248-11E8-B48F-1D18A9856A87","last_name":"Pavlogiannis","first_name":"Andreas","orcid":"0000-0002-8943-0722"},{"orcid":"0000-0002-4561-241X","last_name":"Chatterjee","first_name":"Krishnendu","full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Nowak","first_name":"Martin A.","full_name":"Nowak, Martin A."}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","type":"journal_article","article_processing_charge":"No","citation":{"mla":"Svoboda, Jakub, et al. “Infection Dynamics of COVID-19 Virus under Lockdown and Reopening.” <i>Scientific Reports</i>, vol. 12, no. 1, 1526, Springer Nature, 2022, doi:<a href=\"https://doi.org/10.1038/s41598-022-05333-5\">10.1038/s41598-022-05333-5</a>.","short":"J. Svoboda, J. Tkadlec, A. Pavlogiannis, K. Chatterjee, M.A. Nowak, Scientific Reports 12 (2022).","chicago":"Svoboda, Jakub, Josef Tkadlec, Andreas Pavlogiannis, Krishnendu Chatterjee, and Martin A. Nowak. “Infection Dynamics of COVID-19 Virus under Lockdown and Reopening.” <i>Scientific Reports</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1038/s41598-022-05333-5\">https://doi.org/10.1038/s41598-022-05333-5</a>.","ieee":"J. Svoboda, J. Tkadlec, A. Pavlogiannis, K. Chatterjee, and M. A. Nowak, “Infection dynamics of COVID-19 virus under lockdown and reopening,” <i>Scientific Reports</i>, vol. 12, no. 1. Springer Nature, 2022.","ama":"Svoboda J, Tkadlec J, Pavlogiannis A, Chatterjee K, Nowak MA. Infection dynamics of COVID-19 virus under lockdown and reopening. <i>Scientific Reports</i>. 2022;12(1). doi:<a href=\"https://doi.org/10.1038/s41598-022-05333-5\">10.1038/s41598-022-05333-5</a>","apa":"Svoboda, J., Tkadlec, J., Pavlogiannis, A., Chatterjee, K., &#38; Nowak, M. A. (2022). Infection dynamics of COVID-19 virus under lockdown and reopening. <i>Scientific Reports</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41598-022-05333-5\">https://doi.org/10.1038/s41598-022-05333-5</a>","ista":"Svoboda J, Tkadlec J, Pavlogiannis A, Chatterjee K, Nowak MA. 2022. Infection dynamics of COVID-19 virus under lockdown and reopening. Scientific Reports. 12(1), 1526."},"article_type":"original","day":"27","quality_controlled":"1","intvolume":"        12","oa":1,"project":[{"name":"Formal Methods for Stochastic Models: Algorithms and Applications","grant_number":"863818","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","call_identifier":"H2020"}],"doi":"10.1038/s41598-022-05333-5","_id":"10731","month":"01","file":[{"file_name":"2022_ScientificReports_Svoboda.pdf","file_id":"10744","access_level":"open_access","creator":"alisjak","date_created":"2022-02-07T14:57:59Z","success":1,"date_updated":"2022-02-07T14:57:59Z","content_type":"application/pdf","checksum":"247afd30c173390940f099ead35a28ed","file_size":2971922,"relation":"main_file"}],"publisher":"Springer Nature","external_id":{"arxiv":["2012.15155"],"isi":["000749198000039"]},"publication_status":"published","has_accepted_license":"1","year":"2022","abstract":[{"lang":"eng","text":"Motivated by COVID-19, we develop and analyze a simple stochastic model for the spread of disease in human population. We track how the number of infected and critically ill people develops over time in order to estimate the demand that is imposed on the hospital system. To keep this demand under control, we consider a class of simple policies for slowing down and reopening society and we compare their efficiency in mitigating the spread of the virus from several different points of view. We find that in order to avoid overwhelming of the hospital system, a policy must impose a harsh lockdown or it must react swiftly (or both). While reacting swiftly is universally beneficial, being harsh pays off only when the country is patient about reopening and when the neighboring countries coordinate their mitigation efforts. Our work highlights the importance of acting decisively when closing down and the importance of patience and coordination between neighboring countries when reopening."}],"date_created":"2022-02-06T23:01:30Z","publication_identifier":{"eissn":["2045-2322"]},"department":[{"_id":"KrCh"}],"scopus_import":"1","date_published":"2022-01-27T00:00:00Z","article_number":"1526","acknowledgement":"K.C. acknowledges support from ERC Consolidator Grant No. (863818: ForM-SMart). A.P. acknowledges support from FWF Grant No. J-4220. M.A.N. acknowledges support from Office of Naval Research grant N00014-16-1-2914 and from the John Templeton Foundation.","status":"public","language":[{"iso":"eng"}],"fulldoi":"https://doi.org/10.1038/s41598-022-05333-5","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"isi":1,"ec_funded":1,"issue":"1","arxiv":1},{"file_date_updated":"2023-09-26T10:43:15Z","oa_version":"Published Version","alternative_title":["LIPIcs"],"date_updated":"2026-07-07T13:37:58Z","das_tickbox":"1","publication":"33rd International Conference on Concurrency Theory","volume":243,"ddc":["000"],"article_processing_charge":"No","type":"conference","conference":{"name":"CONCUR: Conference on Concurrency Theory","start_date":"2022-09-13","end_date":"2022-09-16","location":"Warsaw, Poland"},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"full_name":"Grover, Kush","last_name":"Grover","first_name":"Kush"},{"orcid":"0000-0002-8122-2881","first_name":"Jan","last_name":"Kretinsky","full_name":"Kretinsky, Jan","id":"44CEF464-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Meggendorfer, Tobias","id":"b21b0c15-30a2-11eb-80dc-f13ca25802e1","first_name":"Tobias","last_name":"Meggendorfer","orcid":"0000-0002-1712-2165"},{"first_name":"Maimilian","last_name":"Weininger","full_name":"Weininger, Maimilian"}],"title":"Anytime guarantees for reachability in uncountable Markov decision processes","citation":{"ista":"Grover K, Kretinsky J, Meggendorfer T, Weininger M. 2022. Anytime guarantees for reachability in uncountable Markov decision processes. 33rd International Conference on Concurrency Theory. CONCUR: Conference on Concurrency Theory, LIPIcs, vol. 243, 11.","apa":"Grover, K., Kretinsky, J., Meggendorfer, T., &#38; Weininger, M. (2022). Anytime guarantees for reachability in uncountable Markov decision processes. In <i>33rd International Conference on Concurrency Theory</i> (Vol. 243). Warsaw, Poland: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2022.11\">https://doi.org/10.4230/LIPIcs.CONCUR.2022.11</a>","ama":"Grover K, Kretinsky J, Meggendorfer T, Weininger M. Anytime guarantees for reachability in uncountable Markov decision processes. In: <i>33rd International Conference on Concurrency Theory</i>. Vol 243. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2022. doi:<a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2022.11\">10.4230/LIPIcs.CONCUR.2022.11</a>","ieee":"K. Grover, J. Kretinsky, T. Meggendorfer, and M. Weininger, “Anytime guarantees for reachability in uncountable Markov decision processes,” in <i>33rd International Conference on Concurrency Theory</i>, Warsaw, Poland, 2022, vol. 243.","short":"K. Grover, J. Kretinsky, T. Meggendorfer, M. Weininger, in:, 33rd International Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022.","chicago":"Grover, Kush, Jan Kretinsky, Tobias Meggendorfer, and Maimilian Weininger. “Anytime Guarantees for Reachability in Uncountable Markov Decision Processes.” In <i>33rd International Conference on Concurrency Theory</i>, Vol. 243. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022. <a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2022.11\">https://doi.org/10.4230/LIPIcs.CONCUR.2022.11</a>.","mla":"Grover, Kush, et al. “Anytime Guarantees for Reachability in Uncountable Markov Decision Processes.” <i>33rd International Conference on Concurrency Theory</i>, vol. 243, 11, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022, doi:<a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2022.11\">10.4230/LIPIcs.CONCUR.2022.11</a>."},"day":"15","oa":1,"intvolume":"       243","quality_controlled":"1","doi":"10.4230/LIPIcs.CONCUR.2022.11","_id":"12775","month":"09","has_accepted_license":"1","publication_status":"published","external_id":{"arxiv":["2008.04824"]},"file":[{"creator":"dernst","success":1,"date_created":"2023-09-26T10:43:15Z","file_name":"2022_LIPIcS_Grover.pdf","file_id":"14372","access_level":"open_access","file_size":960036,"checksum":"e282e43d3ae0ba6e067b72f4583e13c0","relation":"main_file","date_updated":"2023-09-26T10:43:15Z","content_type":"application/pdf"}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","date_created":"2023-03-28T08:09:32Z","abstract":[{"text":"We consider the problem of approximating the reachability probabilities in Markov decision processes (MDP) with uncountable (continuous) state and action spaces. While there are algorithms that, for special classes of such MDP, provide a sequence of approximations converging to the true value in the limit, our aim is to obtain an algorithm with guarantees on the precision of the approximation.\r\nAs this problem is undecidable in general, assumptions on the MDP are necessary. Our main contribution is to identify sufficient assumptions that are as weak as possible, thus approaching the \"boundary\" of which systems can be correctly and reliably analyzed. To this end, we also argue why each of our assumptions is necessary for algorithms based on processing finitely many observations.\r\nWe present two solution variants. The first one provides converging lower bounds under weaker assumptions than typical ones from previous works concerned with guarantees. The second one then utilizes stronger assumptions to additionally provide converging upper bounds. Altogether, we obtain an anytime algorithm, i.e. yielding a sequence of approximants with known and iteratively improving precision, converging to the true value in the limit. Besides, due to the generality of our assumptions, our algorithms are very general templates, readily allowing for various heuristics from literature in contrast to, e.g., a specific discretization algorithm. Our theoretical contribution thus paves the way for future practical improvements without sacrificing correctness guarantees.","lang":"eng"}],"year":"2022","publication_identifier":{"issn":["1868-8969"]},"acknowledgement":"Kush Grover: The author has been supported by the DFG research training group GRK\r\n2428 ConVeY.\r\nMaximilian Weininger: The author has been partially supported by DFG projects 383882557\r\nStatistical Unbounded Verification (SUV) and 427755713 Group-By Objectives in Probabilistic\r\nVerification (GOPro)","article_number":"11","date_published":"2022-09-15T00:00:00Z","scopus_import":"1","department":[{"_id":"KrCh"}],"corr_author":"1","language":[{"iso":"eng"}],"status":"public","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"fulldoi":"https://doi.org/10.4230/LIPIcs.CONCUR.2022.11","arxiv":1},{"publication_identifier":{"issn":["1868-8969"],"isbn":["9783959772617"]},"date_created":"2023-01-01T23:00:50Z","abstract":[{"lang":"eng","text":"Spatial games form a widely-studied class of games from biology and physics modeling the evolution of social behavior. Formally, such a game is defined by a square (d by d) payoff matrix M and an undirected graph G. Each vertex of G represents an individual, that initially follows some strategy i ∈ {1,2,…,d}. In each round of the game, every individual plays the matrix game with each of its neighbors: An individual following strategy i meeting a neighbor following strategy j receives a payoff equal to the entry (i,j) of M. Then, each individual updates its strategy to its neighbors' strategy with the highest sum of payoffs, and the next round starts. The basic computational problems consist of reachability between configurations and the average frequency of a strategy. For general spatial games and graphs, these problems are in PSPACE. In this paper, we examine restricted setting: the game is a prisoner’s dilemma; and G is a subgraph of grid. We prove that basic computational problems for spatial games with prisoner’s dilemma on a subgraph of a grid are PSPACE-hard."}],"year":"2022","has_accepted_license":"1","publication_status":"published","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","file":[{"date_created":"2023-01-20T10:19:19Z","success":1,"creator":"dernst","access_level":"open_access","file_id":"12323","file_name":"2022_LIPICs_Chatterjee.pdf","relation":"main_file","checksum":"a21e3ba2421e2c4a06aa2cb6d530ede1","file_size":657396,"content_type":"application/pdf","date_updated":"2023-01-20T10:19:19Z"}],"_id":"12101","month":"12","ec_funded":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"fulldoi":"https://doi.org/10.4230/LIPIcs.FSTTCS.2022.11","language":[{"iso":"eng"}],"status":"public","acknowledgement":"Krishnendu Chatterjee: The research was partially supported by the ERC CoG 863818\r\n(ForM-SMArt).\r\nIsmaël Jecker: The research was partially supported by the ERC grant 950398 (INFSYS).\r\nJakub Svoboda: The research was partially supported by the ERC CoG 863818 (ForM-SMArt)","article_number":"11:1-11:14","date_published":"2022-12-14T00:00:00Z","department":[{"_id":"KrCh"}],"corr_author":"1","scopus_import":"1","article_processing_charge":"No","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"conference","conference":{"end_date":"2022-12-20","location":"Madras, India","name":"FSTTCS: Foundations of Software Technology and Theoretical Computer Science","start_date":"2022-12-18"},"author":[{"first_name":"Krishnendu","last_name":"Chatterjee","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X"},{"orcid":"0000-0003-4783-0389","last_name":"Ibsen-Jensen","first_name":"Rasmus","full_name":"Ibsen-Jensen, Rasmus","id":"3B699956-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Jecker, Ismael R","id":"85D7C63E-7D5D-11E9-9C0F-98C4E5697425","last_name":"Jecker","first_name":"Ismael R"},{"last_name":"Svoboda","first_name":"Jakub","full_name":"Svoboda, Jakub","id":"130759D2-D7DD-11E9-87D2-DE0DE6697425","orcid":"0000-0002-1419-3267"}],"title":"Complexity of spatial games","publication":"42nd IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science","volume":250,"ddc":["000"],"date_updated":"2026-09-16T06:59:32Z","oa_version":"Published Version","related_material":{"record":[{"status":"public","id":"20138","relation":"dissertation_contains"}]},"file_date_updated":"2023-01-20T10:19:19Z","doi":"10.4230/LIPIcs.FSTTCS.2022.11","project":[{"_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","call_identifier":"H2020","name":"Formal Methods for Stochastic Models: Algorithms and Applications","grant_number":"863818"}],"oa":1,"intvolume":"       250","quality_controlled":"1","day":"14","citation":{"ieee":"K. Chatterjee, R. Ibsen-Jensen, I. R. Jecker, and J. Svoboda, “Complexity of spatial games,” in <i>42nd IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>, Madras, India, 2022, vol. 250.","short":"K. Chatterjee, R. Ibsen-Jensen, I.R. Jecker, J. Svoboda, in:, 42nd IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022.","chicago":"Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, Ismael R Jecker, and Jakub Svoboda. “Complexity of Spatial Games.” In <i>42nd IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>, Vol. 250. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022. <a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2022.11\">https://doi.org/10.4230/LIPIcs.FSTTCS.2022.11</a>.","mla":"Chatterjee, Krishnendu, et al. “Complexity of Spatial Games.” <i>42nd IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>, vol. 250, 11:1-11:14, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022, doi:<a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2022.11\">10.4230/LIPIcs.FSTTCS.2022.11</a>.","ista":"Chatterjee K, Ibsen-Jensen R, Jecker IR, Svoboda J. 2022. Complexity of spatial games. 42nd IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science. FSTTCS: Foundations of Software Technology and Theoretical Computer Science vol. 250, 11:1-11:14.","apa":"Chatterjee, K., Ibsen-Jensen, R., Jecker, I. R., &#38; Svoboda, J. (2022). Complexity of spatial games. In <i>42nd IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i> (Vol. 250). Madras, India: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2022.11\">https://doi.org/10.4230/LIPIcs.FSTTCS.2022.11</a>","ama":"Chatterjee K, Ibsen-Jensen R, Jecker IR, Svoboda J. Complexity of spatial games. In: <i>42nd IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>. Vol 250. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2022. doi:<a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2022.11\">10.4230/LIPIcs.FSTTCS.2022.11</a>"}},{"date_updated":"2026-09-16T06:59:33Z","oa_version":"Preprint","related_material":{"record":[{"id":"20138","relation":"dissertation_contains","status":"public"}]},"title":"Social balance on networks: Local minima and best-edge dynamics","author":[{"first_name":"Krishnendu","last_name":"Chatterjee","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X"},{"orcid":"0000-0002-1419-3267","id":"130759D2-D7DD-11E9-87D2-DE0DE6697425","full_name":"Svoboda, Jakub","last_name":"Svoboda","first_name":"Jakub"},{"orcid":"0000-0002-4681-1699","id":"294AA7A6-F248-11E8-B48F-1D18A9856A87","full_name":"Zikelic, Dorde","first_name":"Dorde","last_name":"Zikelic"},{"first_name":"Andreas","last_name":"Pavlogiannis","id":"49704004-F248-11E8-B48F-1D18A9856A87","full_name":"Pavlogiannis, Andreas","orcid":"0000-0002-8943-0722"},{"orcid":"0000-0002-1097-9684","first_name":"Josef","last_name":"Tkadlec","full_name":"Tkadlec, Josef","id":"3F24CCC8-F248-11E8-B48F-1D18A9856A87"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","type":"journal_article","article_processing_charge":"No","volume":106,"publication":"Physical Review E","article_type":"original","day":"29","citation":{"ama":"Chatterjee K, Svoboda J, Zikelic D, Pavlogiannis A, Tkadlec J. Social balance on networks: Local minima and best-edge dynamics. <i>Physical Review E</i>. 2022;106(3). doi:<a href=\"https://doi.org/10.1103/physreve.106.034321\">10.1103/physreve.106.034321</a>","apa":"Chatterjee, K., Svoboda, J., Zikelic, D., Pavlogiannis, A., &#38; Tkadlec, J. (2022). Social balance on networks: Local minima and best-edge dynamics. <i>Physical Review E</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physreve.106.034321\">https://doi.org/10.1103/physreve.106.034321</a>","ista":"Chatterjee K, Svoboda J, Zikelic D, Pavlogiannis A, Tkadlec J. 2022. Social balance on networks: Local minima and best-edge dynamics. Physical Review E. 106(3), 034321.","mla":"Chatterjee, Krishnendu, et al. “Social Balance on Networks: Local Minima and Best-Edge Dynamics.” <i>Physical Review E</i>, vol. 106, no. 3, 034321, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/physreve.106.034321\">10.1103/physreve.106.034321</a>.","chicago":"Chatterjee, Krishnendu, Jakub Svoboda, Dorde Zikelic, Andreas Pavlogiannis, and Josef Tkadlec. “Social Balance on Networks: Local Minima and Best-Edge Dynamics.” <i>Physical Review E</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/physreve.106.034321\">https://doi.org/10.1103/physreve.106.034321</a>.","short":"K. Chatterjee, J. Svoboda, D. Zikelic, A. Pavlogiannis, J. Tkadlec, Physical Review E 106 (2022).","ieee":"K. Chatterjee, J. Svoboda, D. Zikelic, A. Pavlogiannis, and J. Tkadlec, “Social balance on networks: Local minima and best-edge dynamics,” <i>Physical Review E</i>, vol. 106, no. 3. American Physical Society, 2022."},"project":[{"grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications","_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"},{"grant_number":"863818","name":"Formal Methods for Stochastic Models: Algorithms and Applications","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","call_identifier":"H2020"},{"_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"},{"grant_number":"665385","name":"International IST Doctoral Program","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"}],"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2210.02394"}],"doi":"10.1103/physreve.106.034321","quality_controlled":"1","intvolume":"       106","oa":1,"publisher":"American Physical Society","external_id":{"arxiv":["2210.02394"],"isi":["000870243100001"]},"publication_status":"published","month":"09","_id":"12257","publication_identifier":{"issn":["2470-0045"],"eissn":["2470-0053"]},"year":"2022","abstract":[{"text":"Structural balance theory is an established framework for studying social relationships of friendship and enmity. These relationships are modeled by a signed network whose energy potential measures the level of imbalance, while stochastic dynamics drives the network toward a state of minimum energy that captures social balance. It is known that this energy landscape has local minima that can trap socially aware dynamics, preventing it from reaching balance. Here we first study the robustness and attractor properties of these local minima. We show that a stochastic process can reach them from an abundance of initial states and that some local minima cannot be escaped by mild perturbations of the network. Motivated by these anomalies, we introduce best-edge dynamics (BED), a new plausible stochastic process. We prove that BED always reaches balance and that it does so fast in various interesting settings.","lang":"eng"}],"date_created":"2023-01-16T09:57:57Z","status":"public","language":[{"iso":"eng"}],"department":[{"_id":"KrCh"}],"scopus_import":"1","date_published":"2022-09-29T00:00:00Z","article_number":"034321","acknowledgement":"K.C. acknowledges support from ERC Start Grant No. (279307: Graph Games), ERC Consolidator Grant No. (863818: ForM-SMart), and Austrian Science Fund (FWF)\r\nGrants No. P23499-N23 and No. S11407-N23 (RiSE). This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie\r\nSkłodowska-Curie Grant Agreement No. 665385.","arxiv":1,"fulldoi":"https://doi.org/10.1103/physreve.106.034321","isi":1,"issue":"3","ec_funded":1},{"status":"public","language":[{"iso":"eng"}],"scopus_import":"1","department":[{"_id":"GradSch"},{"_id":"KrCh"}],"acknowledgement":"Partially supported by Austrian Science Fund (FWF) NFN Grant No RiSE/SHiNE S11407, by CONICYT Chile through grant PII 20150140, and by ECOS-CONICYT through grant C15E03.\r\n","date_published":"2022-02-01T00:00:00Z","arxiv":1,"fulldoi":"https://doi.org/10.1287/moor.2020.1116","issue":"1","isi":1,"external_id":{"arxiv":["1904.13360"],"isi":["000731918100001"]},"publisher":"Institute for Operations Research and the Management Sciences","publication_status":"published","_id":"9311","month":"02","publication_identifier":{"issn":["0364-765X"],"eissn":["1526-5471"]},"year":"2022","date_created":"2021-04-08T09:33:31Z","abstract":[{"text":"Partially observable Markov decision processes (POMDPs) are standard models for dynamic systems with probabilistic and nondeterministic behaviour in uncertain environments. We prove that in POMDPs with long-run average objective, the decision maker has approximately optimal strategies with finite memory. This implies notably that approximating the long-run value is recursively enumerable, as well as a weak continuity property of the value with respect to the transition function. ","lang":"eng"}],"page":"100-119","article_type":"original","day":"01","citation":{"ista":"Chatterjee K, Saona Urmeneta RJ, Ziliotto B. 2022. Finite-memory strategies in POMDPs with long-run average objectives. Mathematics of Operations Research. 47(1), 100–119.","ama":"Chatterjee K, Saona Urmeneta RJ, Ziliotto B. Finite-memory strategies in POMDPs with long-run average objectives. <i>Mathematics of Operations Research</i>. 2022;47(1):100-119. doi:<a href=\"https://doi.org/10.1287/moor.2020.1116\">10.1287/moor.2020.1116</a>","apa":"Chatterjee, K., Saona Urmeneta, R. J., &#38; Ziliotto, B. (2022). Finite-memory strategies in POMDPs with long-run average objectives. <i>Mathematics of Operations Research</i>. Institute for Operations Research and the Management Sciences. <a href=\"https://doi.org/10.1287/moor.2020.1116\">https://doi.org/10.1287/moor.2020.1116</a>","ieee":"K. Chatterjee, R. J. Saona Urmeneta, and B. Ziliotto, “Finite-memory strategies in POMDPs with long-run average objectives,” <i>Mathematics of Operations Research</i>, vol. 47, no. 1. Institute for Operations Research and the Management Sciences, pp. 100–119, 2022.","mla":"Chatterjee, Krishnendu, et al. “Finite-Memory Strategies in POMDPs with Long-Run Average Objectives.” <i>Mathematics of Operations Research</i>, vol. 47, no. 1, Institute for Operations Research and the Management Sciences, 2022, pp. 100–19, doi:<a href=\"https://doi.org/10.1287/moor.2020.1116\">10.1287/moor.2020.1116</a>.","short":"K. Chatterjee, R.J. Saona Urmeneta, B. Ziliotto, Mathematics of Operations Research 47 (2022) 100–119.","chicago":"Chatterjee, Krishnendu, Raimundo J Saona Urmeneta, and Bruno Ziliotto. “Finite-Memory Strategies in POMDPs with Long-Run Average Objectives.” <i>Mathematics of Operations Research</i>. Institute for Operations Research and the Management Sciences, 2022. <a href=\"https://doi.org/10.1287/moor.2020.1116\">https://doi.org/10.1287/moor.2020.1116</a>."},"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1904.13360"}],"project":[{"name":"Game Theory","grant_number":"S11407","call_identifier":"FWF","_id":"25863FF4-B435-11E9-9278-68D0E5697425"}],"keyword":["Management Science and Operations Research","General Mathematics","Computer Science Applications"],"doi":"10.1287/moor.2020.1116","quality_controlled":"1","oa":1,"intvolume":"        47","date_updated":"2026-09-16T07:00:33Z","oa_version":"Preprint","related_material":{"record":[{"id":"20234","relation":"dissertation_contains","status":"public"}]},"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","type":"journal_article","author":[{"orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","last_name":"Chatterjee"},{"orcid":"0000-0001-5103-038X","id":"BD1DF4C4-D767-11E9-B658-BC13E6697425","full_name":"Saona Urmeneta, Raimundo J","last_name":"Saona Urmeneta","first_name":"Raimundo J"},{"full_name":"Ziliotto, Bruno","first_name":"Bruno","last_name":"Ziliotto"}],"title":"Finite-memory strategies in POMDPs with long-run average objectives","article_processing_charge":"No","publication":"Mathematics of Operations Research","volume":47},{"oa_version":"Published Version","date_updated":"2026-06-18T10:41:02Z","author":[{"full_name":"Tomášek, Petr","last_name":"Tomášek","first_name":"Petr"},{"full_name":"Horák, Karel","last_name":"Horák","first_name":"Karel"},{"full_name":"Aradhye, Aditya","first_name":"Aditya","last_name":"Aradhye"},{"full_name":"Bošanský, Branislav","last_name":"Bošanský","first_name":"Branislav"},{"full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","last_name":"Chatterjee","orcid":"0000-0002-4561-241X"}],"title":"Solving partially observable stochastic shortest-path games","conference":{"location":"Virtual, Online","end_date":"2021-08-27","start_date":"2021-08-19","name":"IJCAI: International Joint Conferences on Artificial Intelligence"},"type":"conference","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","ddc":["000"],"publication":"30th International Joint Conference on Artificial Intelligence","page":"4182-4189","day":"01","citation":{"apa":"Tomášek, P., Horák, K., Aradhye, A., Bošanský, B., &#38; Chatterjee, K. (2021). Solving partially observable stochastic shortest-path games. In <i>30th International Joint Conference on Artificial Intelligence</i> (pp. 4182–4189). Virtual, Online: International Joint Conferences on Artificial Intelligence. <a href=\"https://doi.org/10.24963/ijcai.2021/575\">https://doi.org/10.24963/ijcai.2021/575</a>","ama":"Tomášek P, Horák K, Aradhye A, Bošanský B, Chatterjee K. Solving partially observable stochastic shortest-path games. In: <i>30th International Joint Conference on Artificial Intelligence</i>. International Joint Conferences on Artificial Intelligence; 2021:4182-4189. doi:<a href=\"https://doi.org/10.24963/ijcai.2021/575\">10.24963/ijcai.2021/575</a>","ista":"Tomášek P, Horák K, Aradhye A, Bošanský B, Chatterjee K. 2021. Solving partially observable stochastic shortest-path games. 30th International Joint Conference on Artificial Intelligence. IJCAI: International Joint Conferences on Artificial Intelligence, 4182–4189.","chicago":"Tomášek, Petr, Karel Horák, Aditya Aradhye, Branislav Bošanský, and Krishnendu Chatterjee. “Solving Partially Observable Stochastic Shortest-Path Games.” In <i>30th International Joint Conference on Artificial Intelligence</i>, 4182–89. International Joint Conferences on Artificial Intelligence, 2021. <a href=\"https://doi.org/10.24963/ijcai.2021/575\">https://doi.org/10.24963/ijcai.2021/575</a>.","short":"P. Tomášek, K. Horák, A. Aradhye, B. Bošanský, K. Chatterjee, in:, 30th International Joint Conference on Artificial Intelligence, International Joint Conferences on Artificial Intelligence, 2021, pp. 4182–4189.","mla":"Tomášek, Petr, et al. “Solving Partially Observable Stochastic Shortest-Path Games.” <i>30th International Joint Conference on Artificial Intelligence</i>, International Joint Conferences on Artificial Intelligence, 2021, pp. 4182–89, doi:<a href=\"https://doi.org/10.24963/ijcai.2021/575\">10.24963/ijcai.2021/575</a>.","ieee":"P. Tomášek, K. Horák, A. Aradhye, B. Bošanský, and K. Chatterjee, “Solving partially observable stochastic shortest-path games,” in <i>30th International Joint Conference on Artificial Intelligence</i>, Virtual, Online, 2021, pp. 4182–4189."},"project":[{"name":"Formal Methods for Stochastic Models: Algorithms and Applications","grant_number":"863818","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","call_identifier":"H2020"}],"main_file_link":[{"url":"https://doi.org/10.24963/ijcai.2021/575","open_access":"1"}],"doi":"10.24963/ijcai.2021/575","quality_controlled":"1","oa":1,"publisher":"International Joint Conferences on Artificial Intelligence","publication_status":"published","_id":"10847","month":"09","publication_identifier":{"issn":["1045-0823"],"isbn":["9780999241196"]},"year":"2021","abstract":[{"lang":"eng","text":"We study the two-player zero-sum extension of the partially observable stochastic shortest-path problem where one agent has only partial information about the environment. We formulate this problem as a partially observable stochastic game (POSG): given a set of target states and negative rewards for each transition, the player with imperfect information maximizes the expected undiscounted total reward until a target state is reached. The second player with the perfect information aims for the opposite. We base our formalism on POSGs with one-sided observability (OS-POSGs) and give the following contributions: (1) we introduce a novel heuristic search value iteration algorithm that iteratively solves depth-limited variants of the game, (2) we derive the bound on the depth guaranteeing an arbitrary precision, (3) we propose a novel upper-bound estimation that allows early terminations, and (4) we experimentally evaluate the algorithm on a pursuit-evasion game."}],"date_created":"2022-03-13T23:01:47Z","status":"public","language":[{"iso":"eng"}],"department":[{"_id":"KrCh"}],"scopus_import":"1","date_published":"2021-09-01T00:00:00Z","acknowledgement":"This research was supported by the Czech Science Foundation (no. 19-24384Y), by the OP VVV MEYS funded project CZ.02.1.01/0.0/0.0/16 019/0000765 “Research Center for Informatics”, by the ERC CoG 863818 (ForM-SMArt), and by the Combat Capabilities Development Command Army Research Laboratory and was accomplished under Cooperative\r\nAgreement Number W911NF-13-2-0045 (ARL Cyber Security CRA). The views and conclusions contained in this document are those of the authors and should not be interpreted as\r\nrepresenting the official policies, either expressed or implied, of the Combat Capabilities Development Command Army Research Laboratory or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes not withstanding any copyright notation here on. ","fulldoi":"https://doi.org/10.24963/ijcai.2021/575","ec_funded":1},{"department":[{"_id":"KrCh"}],"scopus_import":"1","acknowledgement":"We thank anonymous reviewers for valuable inputs. This work is supported in part by NSF grant 2030859 to the CRA for the CIFellows Project, NSF grants IIS-1527668, CCF-1704883, IIS-1830549, the ERC CoG 863818 (ForM-SMArt), and an award from the Maryland Procurement Office.","date_published":"2021-03-21T00:00:00Z","status":"public","language":[{"iso":"eng"}],"fulldoi":"https://doi.org/10.1007/978-3-030-72016-2_2","ec_funded":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"arxiv":1,"_id":"12767","month":"03","external_id":{"arxiv":["2101.02594"]},"publisher":"Springer Nature","file":[{"success":1,"date_created":"2023-03-28T11:00:33Z","creator":"dernst","access_level":"open_access","file_id":"12777","file_name":"2021_LNCS_Bansal.pdf","relation":"main_file","file_size":747418,"checksum":"b020b78b23587ce7610b1aafb4e63438","content_type":"application/pdf","date_updated":"2023-03-28T11:00:33Z"}],"has_accepted_license":"1","publication_status":"published","year":"2021","date_created":"2023-03-26T22:01:09Z","abstract":[{"lang":"eng","text":"Several problems in planning and reactive synthesis can be reduced to the analysis of two-player quantitative graph games. Optimization is one form of analysis. We argue that in many cases it may be better to replace the optimization problem with the satisficing problem, where instead of searching for optimal solutions, the goal is to search for solutions that adhere to a given threshold bound.\r\nThis work defines and investigates the satisficing problem on a two-player graph game with the discounted-sum cost model. We show that while the satisficing problem can be solved using numerical methods just like the optimization problem, this approach does not render compelling benefits over optimization. When the discount factor is, however, an integer, we present another approach to satisficing, which is purely based on automata methods. We show that this approach is algorithmically more performant – both theoretically and empirically – and demonstrates the broader applicability of satisficing over optimization."}],"publication_identifier":{"issn":["0302-9743"],"isbn":["9783030720155"],"eissn":["1611-3349"]},"citation":{"apa":"Bansal, S., Chatterjee, K., &#38; Vardi, M. Y. (2021). On satisficing in quantitative games. In <i>27th International Conference on Tools and Algorithms for the Construction and Analysis of Systems</i> (Vol. 12651, pp. 20–37). Luxembourg City, Luxembourg: Springer Nature. <a href=\"https://doi.org/10.1007/978-3-030-72016-2_2\">https://doi.org/10.1007/978-3-030-72016-2_2</a>","ama":"Bansal S, Chatterjee K, Vardi MY. On satisficing in quantitative games. In: <i>27th International Conference on Tools and Algorithms for the Construction and Analysis of Systems</i>. Vol 12651. Springer Nature; 2021:20-37. doi:<a href=\"https://doi.org/10.1007/978-3-030-72016-2_2\">10.1007/978-3-030-72016-2_2</a>","ista":"Bansal S, Chatterjee K, Vardi MY. 2021. On satisficing in quantitative games. 27th International Conference on Tools and Algorithms for the Construction and Analysis of Systems. TACAS: Tools and Algorithms for the Construction and Analysis of Systems, LNCS, vol. 12651, 20–37.","chicago":"Bansal, Suguman, Krishnendu Chatterjee, and Moshe Y. Vardi. “On Satisficing in Quantitative Games.” In <i>27th International Conference on Tools and Algorithms for the Construction and Analysis of Systems</i>, 12651:20–37. Springer Nature, 2021. <a href=\"https://doi.org/10.1007/978-3-030-72016-2_2\">https://doi.org/10.1007/978-3-030-72016-2_2</a>.","short":"S. Bansal, K. Chatterjee, M.Y. Vardi, in:, 27th International Conference on Tools and Algorithms for the Construction and Analysis of Systems, Springer Nature, 2021, pp. 20–37.","mla":"Bansal, Suguman, et al. “On Satisficing in Quantitative Games.” <i>27th International Conference on Tools and Algorithms for the Construction and Analysis of Systems</i>, vol. 12651, Springer Nature, 2021, pp. 20–37, doi:<a href=\"https://doi.org/10.1007/978-3-030-72016-2_2\">10.1007/978-3-030-72016-2_2</a>.","ieee":"S. Bansal, K. Chatterjee, and M. Y. Vardi, “On satisficing in quantitative games,” in <i>27th International Conference on Tools and Algorithms for the Construction and Analysis of Systems</i>, Luxembourg City, Luxembourg, 2021, vol. 12651, pp. 20–37."},"page":"20-37","day":"21","quality_controlled":"1","oa":1,"intvolume":"     12651","project":[{"call_identifier":"H2020","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","name":"Formal Methods for Stochastic Models: Algorithms and Applications","grant_number":"863818"}],"doi":"10.1007/978-3-030-72016-2_2","file_date_updated":"2023-03-28T11:00:33Z","alternative_title":["LNCS"],"date_updated":"2025-07-10T13:18:02Z","oa_version":"Published Version","ddc":["000"],"publication":"27th International Conference on Tools and Algorithms for the Construction and Analysis of Systems","volume":12651,"type":"conference","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","conference":{"name":"TACAS: Tools and Algorithms for the Construction and Analysis of Systems","start_date":"2021-03-27","end_date":"2021-04-01","location":"Luxembourg City, Luxembourg"},"title":"On satisficing in quantitative games","author":[{"first_name":"Suguman","last_name":"Bansal","full_name":"Bansal, Suguman"},{"orcid":"0000-0002-4561-241X","last_name":"Chatterjee","first_name":"Krishnendu","full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Vardi, Moshe Y.","first_name":"Moshe Y.","last_name":"Vardi"}],"article_processing_charge":"No"},{"abstract":[{"lang":"eng","text":"RevTerm is a static analysis tool for proving non-termination of integer C programs (possibly with non-determinism). RevTerm is an implementation of our method for non-termination proving presented in the paper “Proving Non-termination by Program Reversal”.\r\n\r\n"}],"date_created":"2024-04-03T09:00:42Z","year":"2021","ddc":["000"],"article_processing_charge":"No","author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu","orcid":"0000-0002-4561-241X"},{"full_name":"Goharshady, Ehsan Kafshdar","last_name":"Goharshady","first_name":"Ehsan Kafshdar"},{"id":"3CC3B868-F248-11E8-B48F-1D18A9856A87","full_name":"Novotný, Petr","first_name":"Petr","last_name":"Novotný"},{"id":"294AA7A6-F248-11E8-B48F-1D18A9856A87","full_name":"Zikelic, Dorde","last_name":"Zikelic","first_name":"Dorde","orcid":"0000-0002-4681-1699"}],"title":"RevTerm","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"research_data_reference","related_material":{"record":[{"status":"public","id":"9644","relation":"used_in_publication"}]},"_id":"15284","month":"06","has_accepted_license":"1","publisher":"Association for Computing Machinery","oa_version":"Published Version","date_updated":"2025-04-15T06:25:30Z","oa":1,"fulldoi":"https://doi.org/10.1145/3410304","doi":"10.1145/3410304","main_file_link":[{"url":"https://doi.org/10.1145/3410304","open_access":"1"}],"date_published":"2021-06-01T00:00:00Z","citation":{"ieee":"K. Chatterjee, E. K. Goharshady, P. Novotný, and D. Zikelic, “RevTerm.” Association for Computing Machinery, 2021.","short":"K. Chatterjee, E.K. Goharshady, P. Novotný, D. Zikelic, (2021).","chicago":"Chatterjee, Krishnendu, Ehsan Kafshdar Goharshady, Petr Novotný, and Dorde Zikelic. “RevTerm.” Association for Computing Machinery, 2021. <a href=\"https://doi.org/10.1145/3410304\">https://doi.org/10.1145/3410304</a>.","mla":"Chatterjee, Krishnendu, et al. <i>RevTerm</i>. Association for Computing Machinery, 2021, doi:<a href=\"https://doi.org/10.1145/3410304\">10.1145/3410304</a>.","ista":"Chatterjee K, Goharshady EK, Novotný P, Zikelic D. 2021. RevTerm, Association for Computing Machinery, <a href=\"https://doi.org/10.1145/3410304\">10.1145/3410304</a>.","apa":"Chatterjee, K., Goharshady, E. K., Novotný, P., &#38; Zikelic, D. (2021). RevTerm. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3410304\">https://doi.org/10.1145/3410304</a>","ama":"Chatterjee K, Goharshady EK, Novotný P, Zikelic D. RevTerm. 2021. doi:<a href=\"https://doi.org/10.1145/3410304\">10.1145/3410304</a>"},"department":[{"_id":"KrCh"}],"corr_author":"1","day":"01","status":"public"},{"oa_version":"Published Version","date_updated":"2025-05-14T10:55:28Z","alternative_title":["LIPIcs"],"file_date_updated":"2021-10-01T11:10:53Z","author":[{"id":"85D7C63E-7D5D-11E9-9C0F-98C4E5697425","full_name":"Jecker, Ismael R","first_name":"Ismael R","last_name":"Jecker"},{"full_name":"Mazzocchi, Nicolas","last_name":"Mazzocchi","first_name":"Nicolas"},{"full_name":"Wolf, Petra","first_name":"Petra","last_name":"Wolf"}],"title":"Decomposing permutation automata","type":"conference","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","conference":{"end_date":"2021-08-27","location":"Paris, France","name":"CONCUR: Conference on Concurrency Theory","start_date":"2021-08-23"},"article_processing_charge":"No","ddc":["000"],"volume":203,"publication":"32nd International Conference on Concurrency Theory","day":"13","citation":{"ista":"Jecker IR, Mazzocchi N, Wolf P. 2021. Decomposing permutation automata. 32nd International Conference on Concurrency Theory. CONCUR: Conference on Concurrency Theory, LIPIcs, vol. 203, 18.","ama":"Jecker IR, Mazzocchi N, Wolf P. Decomposing permutation automata. In: <i>32nd International Conference on Concurrency Theory</i>. Vol 203. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2021. doi:<a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2021.18\">10.4230/LIPIcs.CONCUR.2021.18</a>","apa":"Jecker, I. R., Mazzocchi, N., &#38; Wolf, P. (2021). Decomposing permutation automata. In <i>32nd International Conference on Concurrency Theory</i> (Vol. 203). Paris, France: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2021.18\">https://doi.org/10.4230/LIPIcs.CONCUR.2021.18</a>","ieee":"I. R. Jecker, N. Mazzocchi, and P. Wolf, “Decomposing permutation automata,” in <i>32nd International Conference on Concurrency Theory</i>, Paris, France, 2021, vol. 203.","mla":"Jecker, Ismael R., et al. “Decomposing Permutation Automata.” <i>32nd International Conference on Concurrency Theory</i>, vol. 203, 18, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021, doi:<a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2021.18\">10.4230/LIPIcs.CONCUR.2021.18</a>.","short":"I.R. Jecker, N. Mazzocchi, P. Wolf, in:, 32nd International Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021.","chicago":"Jecker, Ismael R, Nicolas Mazzocchi, and Petra Wolf. “Decomposing Permutation Automata.” In <i>32nd International Conference on Concurrency Theory</i>, Vol. 203. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021. <a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2021.18\">https://doi.org/10.4230/LIPIcs.CONCUR.2021.18</a>."},"project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships"}],"doi":"10.4230/LIPIcs.CONCUR.2021.18","quality_controlled":"1","intvolume":"       203","oa":1,"file":[{"file_id":"10064","access_level":"open_access","file_name":"2021_CONCUR_Jecker.pdf","success":1,"date_created":"2021-10-01T11:10:53Z","creator":"cchlebak","content_type":"application/pdf","date_updated":"2021-10-01T11:10:53Z","relation":"main_file","file_size":1003552,"checksum":"4722c81be82265cf45e78adf9db91250"}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","external_id":{"arxiv":["2107.04683"]},"publication_status":"published","has_accepted_license":"1","month":"08","_id":"10052","publication_identifier":{"isbn":["978-3-9597-7203-7"],"issn":["1868-8969"]},"year":"2021","abstract":[{"lang":"eng","text":"A deterministic finite automaton (DFA) 𝒜 is composite if its language L(𝒜) can be decomposed into an intersection ⋂_{i = 1}^k L(𝒜_i) of languages of smaller DFAs. Otherwise, 𝒜 is prime. This notion of primality was introduced by Kupferman and Mosheiff in 2013, and while they proved that we can decide whether a DFA is composite, the precise complexity of this problem is still open, with a doubly-exponential gap between the upper and lower bounds. In this work, we focus on permutation DFAs, i.e., those for which the transition monoid is a group. We provide an NP algorithm to decide whether a permutation DFA is composite, and show that the difficulty of this problem comes from the number of non-accepting states of the instance: we give a fixed-parameter tractable algorithm with the number of rejecting states as the parameter. Moreover, we investigate the class of commutative permutation DFAs. Their structural properties allow us to decide compositionality in NL, and even in LOGSPACE if the alphabet size is fixed. Despite this low complexity, we show that complex behaviors still arise in this class: we provide a family of composite DFAs each requiring polynomially many factors with respect to its size. We also consider the variant of the problem that asks whether a DFA is k-factor composite, that is, decomposable into k smaller DFAs, for some given integer k ∈ ℕ. We show that, for commutative permutation DFAs, restricting the number of factors makes the decision computationally harder, and yields a problem with tight bounds: it is NP-complete. Finally, we show that in general, this problem is in PSPACE, and it is in LOGSPACE for DFAs with a singleton alphabet."}],"date_created":"2021-09-27T14:33:14Z","status":"public","language":[{"iso":"eng"}],"scopus_import":"1","department":[{"_id":"KrCh"}],"date_published":"2021-08-13T00:00:00Z","acknowledgement":"Ismaël Jecker: Marie Skłodowska-Curie Grant Agreement No. 754411. Nicolas Mazzocchi: BOSCO project PGC2018-102210-B-I00 (MCIU/AEI/FEDER, UE), BLOQUESCM project S2018/TCS-4339, and MINECO grant RYC-2016-20281.\r\nPetra Wolf : DFG project FE 560/9-1.\r\n","article_number":"18","arxiv":1,"fulldoi":"https://doi.org/10.4230/LIPIcs.CONCUR.2021.18","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"ec_funded":1},{"ec_funded":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"fulldoi":"https://doi.org/10.4230/LIPIcs.ICALP.2021.124","language":[{"iso":"eng"}],"status":"public","acknowledgement":"Krishnendu Chatterjee: Supported by the ERC CoG 863818 (ForM-SMArt). Monika Henzinger: Supported by the Austrian Science Fund (FWF) and netIDEE SCIENCE project P 33775-N. Sagar Sudhir Kale: Partially supported by the Vienna Science and Technology Fund (WWTF) through project ICT15-003. Alexander Svozil: Fully supported by the Vienna Science and Technology Fund (WWTF) through project ICT15-003.","article_number":"124","date_published":"2021-07-02T00:00:00Z","scopus_import":"1","corr_author":"1","department":[{"_id":"KrCh"}],"publication_identifier":{"isbn":["978-3-95977-195-5"],"issn":["1868-8969"]},"date_created":"2021-09-27T14:33:15Z","abstract":[{"lang":"eng","text":"Graphs and games on graphs are fundamental models for the analysis of reactive systems, in particular, for model-checking and the synthesis of reactive systems. The class of ω-regular languages provides a robust specification formalism for the desired properties of reactive systems. In the classical infinitary formulation of the liveness part of an ω-regular specification, a \"good\" event must happen eventually without any bound between the good events. A stronger notion of liveness is bounded liveness, which requires that good events happen within d transitions. Given a graph or a game graph with n vertices, m edges, and a bounded liveness objective, the previous best-known algorithmic bounds are as follows: (i) O(dm) for graphs, which in the worst-case is O(n³); and (ii) O(n² d²) for games on graphs. Our main contributions improve these long-standing algorithmic bounds. For graphs we present: (i) a randomized algorithm with one-sided error with running time O(n^{2.5} log n) for the bounded liveness objectives; and (ii) a deterministic linear-time algorithm for the complement of bounded liveness objectives. For games on graphs, we present an O(n² d) time algorithm for the bounded liveness objectives."}],"year":"2021","has_accepted_license":"1","publication_status":"published","file":[{"date_updated":"2021-10-01T08:49:26Z","content_type":"application/pdf","checksum":"5a3fed8dbba8c088cbeac1e24cc10bc5","file_size":854576,"relation":"main_file","file_name":"2021_LIPIcs_Chatterjee.pdf","access_level":"open_access","file_id":"10062","creator":"cchlebak","date_created":"2021-10-01T08:49:26Z","success":1}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","month":"07","_id":"10054","doi":"10.4230/LIPIcs.ICALP.2021.124","project":[{"_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","call_identifier":"H2020","name":"Formal Methods for Stochastic Models: Algorithms and Applications","grant_number":"863818"}],"oa":1,"intvolume":"       198","quality_controlled":"1","day":"02","citation":{"apa":"Chatterjee, K., Henzinger, M., Kale, S. S., &#38; Svozil, A. (2021). Faster algorithms for bounded liveness in graphs and game graphs. In <i>48th International Colloquium on Automata, Languages, and Programming</i> (Vol. 198). Glasgow, Scotland: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.ICALP.2021.124\">https://doi.org/10.4230/LIPIcs.ICALP.2021.124</a>","ama":"Chatterjee K, Henzinger M, Kale SS, Svozil A. Faster algorithms for bounded liveness in graphs and game graphs. In: <i>48th International Colloquium on Automata, Languages, and Programming</i>. Vol 198. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2021. doi:<a href=\"https://doi.org/10.4230/LIPIcs.ICALP.2021.124\">10.4230/LIPIcs.ICALP.2021.124</a>","ista":"Chatterjee K, Henzinger M, Kale SS, Svozil A. 2021. Faster algorithms for bounded liveness in graphs and game graphs. 48th International Colloquium on Automata, Languages, and Programming. ICALP: Automata, Languages and Programming, LIPIcs, vol. 198, 124.","chicago":"Chatterjee, Krishnendu, Monika Henzinger, Sagar Sudhir Kale, and Alexander Svozil. “Faster Algorithms for Bounded Liveness in Graphs and Game Graphs.” In <i>48th International Colloquium on Automata, Languages, and Programming</i>, Vol. 198. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021. <a href=\"https://doi.org/10.4230/LIPIcs.ICALP.2021.124\">https://doi.org/10.4230/LIPIcs.ICALP.2021.124</a>.","short":"K. Chatterjee, M. Henzinger, S.S. Kale, A. Svozil, in:, 48th International Colloquium on Automata, Languages, and Programming, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021.","mla":"Chatterjee, Krishnendu, et al. “Faster Algorithms for Bounded Liveness in Graphs and Game Graphs.” <i>48th International Colloquium on Automata, Languages, and Programming</i>, vol. 198, 124, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021, doi:<a href=\"https://doi.org/10.4230/LIPIcs.ICALP.2021.124\">10.4230/LIPIcs.ICALP.2021.124</a>.","ieee":"K. Chatterjee, M. Henzinger, S. S. Kale, and A. Svozil, “Faster algorithms for bounded liveness in graphs and game graphs,” in <i>48th International Colloquium on Automata, Languages, and Programming</i>, Glasgow, Scotland, 2021, vol. 198."},"article_processing_charge":"No","type":"conference","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","conference":{"location":"Glasgow, Scotland","end_date":"2021-07-16","start_date":"2021-07-12","name":"ICALP: Automata, Languages and Programming"},"author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu","orcid":"0000-0002-4561-241X"},{"first_name":"Monika H","last_name":"Henzinger","id":"540c9bbd-f2de-11ec-812d-d04a5be85630","full_name":"Henzinger, Monika H","orcid":"0000-0002-5008-6530"},{"full_name":"Kale, Sagar Sudhir","first_name":"Sagar Sudhir","last_name":"Kale"},{"last_name":"Svozil","first_name":"Alexander","full_name":"Svozil, Alexander"}],"title":"Faster algorithms for bounded liveness in graphs and game graphs","publication":"48th International Colloquium on Automata, Languages, and Programming","volume":198,"ddc":["000"],"oa_version":"Published Version","date_updated":"2025-05-14T10:55:19Z","alternative_title":["LIPIcs"],"file_date_updated":"2021-10-01T08:49:26Z"},{"oa_version":"Published Version","date_updated":"2025-05-14T10:55:11Z","alternative_title":["LIPIcs"],"file_date_updated":"2021-10-01T09:55:00Z","author":[{"first_name":"Ismael R","last_name":"Jecker","id":"85D7C63E-7D5D-11E9-9C0F-98C4E5697425","full_name":"Jecker, Ismael R"}],"title":"A Ramsey theorem for finite monoids","type":"conference","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","conference":{"name":"STACS: Symposium on Theoretical Aspects of Computer Science","start_date":"2021-03-16","end_date":"2021-03-19","location":"Saarbrücken, Germany"},"article_processing_charge":"No","ddc":["000"],"volume":187,"publication":"38th International Symposium on Theoretical Aspects of Computer Science","day":"10","citation":{"apa":"Jecker, I. R. (2021). A Ramsey theorem for finite monoids. In <i>38th International Symposium on Theoretical Aspects of Computer Science</i> (Vol. 187). Saarbrücken, Germany: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.STACS.2021.44\">https://doi.org/10.4230/LIPIcs.STACS.2021.44</a>","ama":"Jecker IR. A Ramsey theorem for finite monoids. In: <i>38th International Symposium on Theoretical Aspects of Computer Science</i>. Vol 187. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2021. doi:<a href=\"https://doi.org/10.4230/LIPIcs.STACS.2021.44\">10.4230/LIPIcs.STACS.2021.44</a>","ista":"Jecker IR. 2021. A Ramsey theorem for finite monoids. 38th International Symposium on Theoretical Aspects of Computer Science. STACS: Symposium on Theoretical Aspects of Computer Science, LIPIcs, vol. 187, 44.","chicago":"Jecker, Ismael R. “A Ramsey Theorem for Finite Monoids.” In <i>38th International Symposium on Theoretical Aspects of Computer Science</i>, Vol. 187. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021. <a href=\"https://doi.org/10.4230/LIPIcs.STACS.2021.44\">https://doi.org/10.4230/LIPIcs.STACS.2021.44</a>.","short":"I.R. Jecker, in:, 38th International Symposium on Theoretical Aspects of Computer Science, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021.","mla":"Jecker, Ismael R. “A Ramsey Theorem for Finite Monoids.” <i>38th International Symposium on Theoretical Aspects of Computer Science</i>, vol. 187, 44, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021, doi:<a href=\"https://doi.org/10.4230/LIPIcs.STACS.2021.44\">10.4230/LIPIcs.STACS.2021.44</a>.","ieee":"I. R. Jecker, “A Ramsey theorem for finite monoids,” in <i>38th International Symposium on Theoretical Aspects of Computer Science</i>, Saarbrücken, Germany, 2021, vol. 187."},"project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships"}],"doi":"10.4230/LIPIcs.STACS.2021.44","quality_controlled":"1","intvolume":"       187","oa":1,"file":[{"file_name":"2021_LIPIcs_Jecker.pdf","file_id":"10063","access_level":"open_access","creator":"cchlebak","success":1,"date_created":"2021-10-01T09:55:00Z","date_updated":"2021-10-01T09:55:00Z","content_type":"application/pdf","file_size":720250,"checksum":"17432a05733f408de300e17e390a90e4","relation":"main_file"}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","external_id":{"isi":["000635691700044"]},"publication_status":"published","has_accepted_license":"1","_id":"10055","month":"03","publication_identifier":{"isbn":["978-3-9597-7180-1"],"issn":["1868-8969"]},"year":"2021","abstract":[{"text":"Repeated idempotent elements are commonly used to characterise iterable behaviours in abstract models of computation. Therefore, given a monoid M, it is natural to ask how long a sequence of elements of M needs to be to ensure the presence of consecutive idempotent factors. This question is formalised through the notion of the Ramsey function R_M associated to M, obtained by mapping every k ∈ ℕ to the minimal integer R_M(k) such that every word u ∈ M^* of length R_M(k) contains k consecutive non-empty factors that correspond to the same idempotent element of M. In this work, we study the behaviour of the Ramsey function R_M by investigating the regular 𝒟-length of M, defined as the largest size L(M) of a submonoid of M isomorphic to the set of natural numbers {1,2, …, L(M)} equipped with the max operation. We show that the regular 𝒟-length of M determines the degree of R_M, by proving that k^L(M) ≤ R_M(k) ≤ (k|M|⁴)^L(M). To allow applications of this result, we provide the value of the regular 𝒟-length of diverse monoids. In particular, we prove that the full monoid of n × n Boolean matrices, which is used to express transition monoids of non-deterministic automata, has a regular 𝒟-length of (n²+n+2)/2.","lang":"eng"}],"date_created":"2021-09-27T14:33:15Z","status":"public","language":[{"iso":"eng"}],"department":[{"_id":"KrCh"}],"scopus_import":"1","date_published":"2021-03-10T00:00:00Z","article_number":"44","acknowledgement":"This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 754411. I wish to thank Michaël Cadilhac, Emmanuel Filiot and Charles Paperman for their valuable insights concerning Green’s relations.","fulldoi":"https://doi.org/10.4230/LIPIcs.STACS.2021.44","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"isi":1,"ec_funded":1},{"title":"A bit of nondeterminism makes pushdown automata expressive and succinct","author":[{"full_name":"Guha, Shibashis","last_name":"Guha","first_name":"Shibashis"},{"id":"85D7C63E-7D5D-11E9-9C0F-98C4E5697425","full_name":"Jecker, Ismael R","last_name":"Jecker","first_name":"Ismael R"},{"last_name":"Lehtinen","first_name":"Karoliina","full_name":"Lehtinen, Karoliina"},{"full_name":"Zimmermann, Martin","last_name":"Zimmermann","first_name":"Martin"}],"conference":{"name":"MFCS: Mathematical Foundations of Computer Science","start_date":"2021-08-23","end_date":"2021-08-27","location":"Tallinn, Estonia"},"type":"conference","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","ddc":["000"],"volume":202,"publication":"46th International Symposium on Mathematical Foundations of Computer Science","date_updated":"2025-05-14T10:54:50Z","alternative_title":["LIPIcs"],"oa_version":"Published Version","file_date_updated":"2021-10-06T12:44:05Z","project":[{"call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411"}],"doi":"10.4230/LIPIcs.MFCS.2021.53","quality_controlled":"1","intvolume":"       202","oa":1,"day":"18","citation":{"ista":"Guha S, Jecker IR, Lehtinen K, Zimmermann M. 2021. A bit of nondeterminism makes pushdown automata expressive and succinct. 46th International Symposium on Mathematical Foundations of Computer Science. MFCS: Mathematical Foundations of Computer Science, LIPIcs, vol. 202, 53.","ama":"Guha S, Jecker IR, Lehtinen K, Zimmermann M. A bit of nondeterminism makes pushdown automata expressive and succinct. In: <i>46th International Symposium on Mathematical Foundations of Computer Science</i>. Vol 202. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2021. doi:<a href=\"https://doi.org/10.4230/LIPIcs.MFCS.2021.53\">10.4230/LIPIcs.MFCS.2021.53</a>","apa":"Guha, S., Jecker, I. R., Lehtinen, K., &#38; Zimmermann, M. (2021). A bit of nondeterminism makes pushdown automata expressive and succinct. In <i>46th International Symposium on Mathematical Foundations of Computer Science</i> (Vol. 202). Tallinn, Estonia: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.MFCS.2021.53\">https://doi.org/10.4230/LIPIcs.MFCS.2021.53</a>","ieee":"S. Guha, I. R. Jecker, K. Lehtinen, and M. Zimmermann, “A bit of nondeterminism makes pushdown automata expressive and succinct,” in <i>46th International Symposium on Mathematical Foundations of Computer Science</i>, Tallinn, Estonia, 2021, vol. 202.","mla":"Guha, Shibashis, et al. “A Bit of Nondeterminism Makes Pushdown Automata Expressive and Succinct.” <i>46th International Symposium on Mathematical Foundations of Computer Science</i>, vol. 202, 53, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021, doi:<a href=\"https://doi.org/10.4230/LIPIcs.MFCS.2021.53\">10.4230/LIPIcs.MFCS.2021.53</a>.","chicago":"Guha, Shibashis, Ismael R Jecker, Karoliina Lehtinen, and Martin Zimmermann. “A Bit of Nondeterminism Makes Pushdown Automata Expressive and Succinct.” In <i>46th International Symposium on Mathematical Foundations of Computer Science</i>, Vol. 202. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021. <a href=\"https://doi.org/10.4230/LIPIcs.MFCS.2021.53\">https://doi.org/10.4230/LIPIcs.MFCS.2021.53</a>.","short":"S. Guha, I.R. Jecker, K. Lehtinen, M. Zimmermann, in:, 46th International Symposium on Mathematical Foundations of Computer Science, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021."},"publication_identifier":{"issn":["1868-8969"],"isbn":["978-3-9597-7201-3"]},"year":"2021","abstract":[{"text":"We study the expressiveness and succinctness of good-for-games pushdown automata (GFG-PDA) over finite words, that is, pushdown automata whose nondeterminism can be resolved based on the run constructed so far, but independently of the remainder of the input word. We prove that GFG-PDA recognise more languages than deterministic PDA (DPDA) but not all context-free languages (CFL). This class is orthogonal to unambiguous CFL. We further show that GFG-PDA can be exponentially more succinct than DPDA, while PDA can be double-exponentially more succinct than GFG-PDA. We also study GFGness in visibly pushdown automata (VPA), which enjoy better closure properties than PDA, and for which we show GFGness to be ExpTime-complete. GFG-VPA can be exponentially more succinct than deterministic VPA, while VPA can be exponentially more succinct than GFG-VPA. Both of these lower bounds are tight. Finally, we study the complexity of resolving nondeterminism in GFG-PDA. Every GFG-PDA has a positional resolver, a function that resolves nondeterminism and that is only dependant on the current configuration. Pushdown transducers are sufficient to implement the resolvers of GFG-VPA, but not those of GFG-PDA. GFG-PDA with finite-state resolvers are determinisable.","lang":"eng"}],"date_created":"2021-10-03T22:01:23Z","file":[{"access_level":"open_access","file_id":"10097","file_name":"2021_LIPIcs_Guha.pdf","date_created":"2021-10-06T12:44:05Z","success":1,"creator":"cchlebak","content_type":"application/pdf","date_updated":"2021-10-06T12:44:05Z","relation":"main_file","checksum":"f4d407d43a97330c3fb11e6a7a6fbfb2","file_size":825567}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","external_id":{"arxiv":["2105.02611"]},"publication_status":"published","has_accepted_license":"1","_id":"10075","month":"08","arxiv":1,"fulldoi":"https://doi.org/10.4230/LIPIcs.MFCS.2021.53","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"ec_funded":1,"status":"public","language":[{"iso":"eng"}],"department":[{"_id":"KrCh"}],"scopus_import":"1","date_published":"2021-08-18T00:00:00Z","acknowledgement":"Ismaël Jecker: Funded by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 754411. Karoliina Lehtinen: Funded by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 892704.","article_number":"53"},{"has_accepted_license":"1","publication_status":"published","external_id":{"arxiv":["2011.11763"]},"file":[{"file_name":"2021_ProcACMPL_Bui.pdf","file_id":"10215","access_level":"open_access","creator":"cchlebak","success":1,"date_created":"2021-11-04T07:24:48Z","date_updated":"2021-11-04T07:24:48Z","content_type":"application/pdf","file_size":2903485,"checksum":"9d6dce7b611853c529bb7b1915ac579e","relation":"main_file"}],"publisher":"Association for Computing Machinery","month":"10","_id":"10191","publication_identifier":{"eissn":["2475-1421"]},"date_created":"2021-10-27T15:05:34Z","abstract":[{"lang":"eng","text":"In this work we solve the algorithmic problem of consistency verification for the TSO and PSO memory models given a reads-from map, denoted VTSO-rf and VPSO-rf, respectively. For an execution of n events over k threads and d variables, we establish novel bounds that scale as nk+1 for TSO and as nk+1· min(nk2, 2k· d) for PSO. Moreover, based on our solution to these problems, we develop an SMC algorithm under TSO and PSO that uses the RF equivalence. The algorithm is exploration-optimal, in the sense that it is guaranteed to explore each class of the RF partitioning exactly once, and spends polynomial time per class when k is bounded. Finally, we implement all our algorithms in the SMC tool Nidhugg, and perform a large number of experiments over benchmarks from existing literature. Our experimental results show that our algorithms for VTSO-rf and VPSO-rf provide significant scalability improvements over standard alternatives. Moreover, when used for SMC, the RF partitioning is often much coarser than the standard Shasha-Snir partitioning for TSO/PSO, which yields a significant speedup in the model checking task.\r\n\r\n"}],"year":"2021","language":[{"iso":"eng"}],"status":"public","article_number":"164","acknowledgement":"The research was partially funded by the ERC CoG 863818 (ForM-SMArt) and the Vienna Science\r\nand Technology Fund (WWTF) through project ICT15-003.","date_published":"2021-10-15T00:00:00Z","scopus_import":"1","department":[{"_id":"GradSch"},{"_id":"KrCh"}],"arxiv":1,"issue":"OOPSLA","ec_funded":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"fulldoi":"https://doi.org/10.1145/3485541","date_updated":"2026-04-08T07:00:31Z","oa_version":"Published Version","related_material":{"record":[{"id":"10199","relation":"dissertation_contains","status":"public"}]},"file_date_updated":"2021-11-04T07:24:48Z","article_processing_charge":"No","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","type":"journal_article","author":[{"first_name":"Truc Lam","last_name":"Bui","full_name":"Bui, Truc Lam"},{"first_name":"Krishnendu","last_name":"Chatterjee","full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-4561-241X"},{"first_name":"Tushar","last_name":"Gautam","full_name":"Gautam, Tushar"},{"id":"49704004-F248-11E8-B48F-1D18A9856A87","full_name":"Pavlogiannis, Andreas","last_name":"Pavlogiannis","first_name":"Andreas","orcid":"0000-0002-8943-0722"},{"last_name":"Toman","first_name":"Viktor","id":"3AF3DA7C-F248-11E8-B48F-1D18A9856A87","full_name":"Toman, Viktor","orcid":"0000-0001-9036-063X"}],"title":"The reads-from equivalence for the TSO and PSO memory models","publication":"Proceedings of the ACM on Programming Languages","volume":5,"ddc":["000"],"day":"15","article_type":"original","citation":{"ista":"Bui TL, Chatterjee K, Gautam T, Pavlogiannis A, Toman V. 2021. The reads-from equivalence for the TSO and PSO memory models. Proceedings of the ACM on Programming Languages. 5(OOPSLA), 164.","apa":"Bui, T. L., Chatterjee, K., Gautam, T., Pavlogiannis, A., &#38; Toman, V. (2021). The reads-from equivalence for the TSO and PSO memory models. <i>Proceedings of the ACM on Programming Languages</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3485541\">https://doi.org/10.1145/3485541</a>","ama":"Bui TL, Chatterjee K, Gautam T, Pavlogiannis A, Toman V. The reads-from equivalence for the TSO and PSO memory models. <i>Proceedings of the ACM on Programming Languages</i>. 2021;5(OOPSLA). doi:<a href=\"https://doi.org/10.1145/3485541\">10.1145/3485541</a>","ieee":"T. L. Bui, K. Chatterjee, T. Gautam, A. Pavlogiannis, and V. Toman, “The reads-from equivalence for the TSO and PSO memory models,” <i>Proceedings of the ACM on Programming Languages</i>, vol. 5, no. OOPSLA. Association for Computing Machinery, 2021.","chicago":"Bui, Truc Lam, Krishnendu Chatterjee, Tushar Gautam, Andreas Pavlogiannis, and Viktor Toman. “The Reads-from Equivalence for the TSO and PSO Memory Models.” <i>Proceedings of the ACM on Programming Languages</i>. Association for Computing Machinery, 2021. <a href=\"https://doi.org/10.1145/3485541\">https://doi.org/10.1145/3485541</a>.","short":"T.L. Bui, K. Chatterjee, T. Gautam, A. Pavlogiannis, V. Toman, Proceedings of the ACM on Programming Languages 5 (2021).","mla":"Bui, Truc Lam, et al. “The Reads-from Equivalence for the TSO and PSO Memory Models.” <i>Proceedings of the ACM on Programming Languages</i>, vol. 5, no. OOPSLA, 164, Association for Computing Machinery, 2021, doi:<a href=\"https://doi.org/10.1145/3485541\">10.1145/3485541</a>."},"doi":"10.1145/3485541","keyword":["safety","risk","reliability and quality","software"],"project":[{"name":"Formal Methods for Stochastic Models: Algorithms and Applications","grant_number":"863818","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","call_identifier":"H2020"},{"grant_number":"ICT15-003","name":"Efficient Algorithms for Computer Aided Verification","_id":"25892FC0-B435-11E9-9278-68D0E5697425"}],"oa":1,"intvolume":"         5","quality_controlled":"1"},{"related_material":{"record":[{"relation":"part_of_dissertation","id":"9987","status":"public"},{"relation":"part_of_dissertation","id":"10191","status":"public"},{"id":"141","relation":"part_of_dissertation","status":"public"},{"status":"public","id":"10190","relation":"part_of_dissertation"}]},"file_date_updated":"2021-11-09T09:00:50Z","OA_place":"publisher","date_updated":"2026-04-08T07:00:31Z","alternative_title":["ISTA Thesis"],"oa_version":"Published Version","degree_awarded":"PhD","ddc":["000"],"article_processing_charge":"No","title":"Improved verification techniques for concurrent systems","author":[{"orcid":"0000-0001-9036-063X","first_name":"Viktor","last_name":"Toman","id":"3AF3DA7C-F248-11E8-B48F-1D18A9856A87","full_name":"Toman, Viktor"}],"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","type":"dissertation","citation":{"apa":"Toman, V. (2021). <i>Improved verification techniques for concurrent systems</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/at:ista:10199\">https://doi.org/10.15479/at:ista:10199</a>","ama":"Toman V. Improved verification techniques for concurrent systems. 2021. doi:<a href=\"https://doi.org/10.15479/at:ista:10199\">10.15479/at:ista:10199</a>","ista":"Toman V. 2021. Improved verification techniques for concurrent systems. Institute of Science and Technology Austria.","chicago":"Toman, Viktor. “Improved Verification Techniques for Concurrent Systems.” Institute of Science and Technology Austria, 2021. <a href=\"https://doi.org/10.15479/at:ista:10199\">https://doi.org/10.15479/at:ista:10199</a>.","short":"V. Toman, Improved Verification Techniques for Concurrent Systems, Institute of Science and Technology Austria, 2021.","mla":"Toman, Viktor. <i>Improved Verification Techniques for Concurrent Systems</i>. Institute of Science and Technology Austria, 2021, doi:<a href=\"https://doi.org/10.15479/at:ista:10199\">10.15479/at:ista:10199</a>.","ieee":"V. Toman, “Improved verification techniques for concurrent systems,” Institute of Science and Technology Austria, 2021."},"day":"31","page":"166","oa":1,"doi":"10.15479/at:ista:10199","keyword":["concurrency","verification","model checking"],"project":[{"_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"International IST Doctoral Program","grant_number":"665385"},{"name":"Rigorous Systems Engineering","grant_number":"S11402-N23","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"name":"Efficient Algorithms for Computer Aided Verification","grant_number":"ICT15-003","_id":"25892FC0-B435-11E9-9278-68D0E5697425"},{"grant_number":"863818","name":"Formal Methods for Stochastic Models: Algorithms and Applications","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","call_identifier":"H2020"}],"month":"10","_id":"10199","supervisor":[{"orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","last_name":"Chatterjee"}],"publication_status":"published","acknowledged_ssus":[{"_id":"SSU"}],"has_accepted_license":"1","file":[{"date_updated":"2021-11-08T14:12:22Z","content_type":"application/pdf","checksum":"4f412a1ee60952221b499a4b1268df35","file_size":2915234,"relation":"main_file","file_name":"toman_th_final.pdf","access_level":"open_access","file_id":"10225","creator":"vtoman","date_created":"2021-11-08T14:12:22Z"},{"relation":"source_file","file_size":8616056,"checksum":"9584943f99127be2dd2963f6784c37d4","content_type":"application/zip","date_updated":"2021-11-09T09:00:50Z","date_created":"2021-11-08T14:12:46Z","creator":"vtoman","access_level":"closed","file_id":"10226","file_name":"toman_thesis.zip"}],"publisher":"Institute of Science and Technology Austria","abstract":[{"lang":"eng","text":"The design and verification of concurrent systems remains an open challenge due to the non-determinism that arises from the inter-process communication. In particular, concurrent programs are notoriously difficult both to be written correctly and to be analyzed formally, as complex thread interaction has to be accounted for. The difficulties are further exacerbated when concurrent programs get executed on modern-day hardware, which contains various buffering and caching mechanisms for efficiency reasons. This causes further subtle non-determinism, which can often produce very unintuitive behavior of the concurrent programs. Model checking is at the forefront of tackling the verification problem, where the task is to decide, given as input a concurrent system and a desired property, whether the system satisfies the property. The inherent state-space explosion problem in model checking of concurrent systems causes naïve explicit methods not to scale, thus more inventive methods are required. One such method is stateless model checking (SMC), which explores in memory-efficient manner the program executions rather than the states of the program. State-of-the-art SMC is typically coupled with partial order reduction (POR) techniques, which argue that certain executions provably produce identical system behavior, thus limiting the amount of executions one needs to explore in order to cover all possible behaviors. Another method to tackle the state-space explosion is symbolic model checking, where the considered techniques operate on a succinct implicit representation of the input system rather than explicitly accessing the system. In this thesis we present new techniques for verification of concurrent systems. We present several novel POR methods for SMC of concurrent programs under various models of semantics, some of which account for write-buffering mechanisms. Additionally, we present novel algorithms for symbolic model checking of finite-state concurrent systems, where the desired property of the systems is to ensure a formally defined notion of fairness."}],"date_created":"2021-10-29T20:09:01Z","year":"2021","publication_identifier":{"issn":["2663-337X"]},"date_published":"2021-10-31T00:00:00Z","corr_author":"1","department":[{"_id":"GradSch"},{"_id":"KrCh"}],"language":[{"iso":"eng"}],"status":"public","ec_funded":1,"fulldoi":"https://doi.org/10.15479/at:ista:10199"},{"related_material":{"record":[{"id":"14778","relation":"later_version","status":"public"},{"status":"public","id":"14539","relation":"dissertation_contains"}]},"oa_version":"Preprint","date_updated":"2026-04-07T13:27:55Z","alternative_title":["LNCS"],"volume":13047,"publication":"24th International Symposium on Formal Methods","article_processing_charge":"No","title":"On lexicographic proof rules for probabilistic termination","author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu","orcid":"0000-0002-4561-241X"},{"orcid":"0000-0002-8595-0587","last_name":"Kafshdar Goharshadi","first_name":"Ehsan","full_name":"Kafshdar Goharshadi, Ehsan","id":"103b4fa0-896a-11ed-bdf8-87b697bef40d"},{"id":"3CC3B868-F248-11E8-B48F-1D18A9856A87","full_name":"Novotný, Petr","last_name":"Novotný","first_name":"Petr"},{"full_name":"Zárevúcky, Jiří","last_name":"Zárevúcky","first_name":"Jiří"},{"id":"294AA7A6-F248-11E8-B48F-1D18A9856A87","full_name":"Zikelic, Dorde","last_name":"Zikelic","first_name":"Dorde","orcid":"0000-0002-4681-1699"}],"conference":{"location":"Virtual","end_date":"2021-11-26","start_date":"2021-11-20","name":"FM: Formal Methods"},"type":"conference","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"ieee":"K. Chatterjee, E. Goharshady, P. Novotný, J. Zárevúcky, and D. Zikelic, “On lexicographic proof rules for probabilistic termination,” in <i>24th International Symposium on Formal Methods</i>, Virtual, 2021, vol. 13047, pp. 619–639.","chicago":"Chatterjee, Krishnendu, Ehsan Goharshady, Petr Novotný, Jiří Zárevúcky, and Dorde Zikelic. “On Lexicographic Proof Rules for Probabilistic Termination.” In <i>24th International Symposium on Formal Methods</i>, 13047:619–39. Springer Nature, 2021. <a href=\"https://doi.org/10.1007/978-3-030-90870-6_33\">https://doi.org/10.1007/978-3-030-90870-6_33</a>.","short":"K. Chatterjee, E. Goharshady, P. Novotný, J. Zárevúcky, D. Zikelic, in:, 24th International Symposium on Formal Methods, Springer Nature, 2021, pp. 619–639.","mla":"Chatterjee, Krishnendu, et al. “On Lexicographic Proof Rules for Probabilistic Termination.” <i>24th International Symposium on Formal Methods</i>, vol. 13047, Springer Nature, 2021, pp. 619–39, doi:<a href=\"https://doi.org/10.1007/978-3-030-90870-6_33\">10.1007/978-3-030-90870-6_33</a>.","ista":"Chatterjee K, Goharshady E, Novotný P, Zárevúcky J, Zikelic D. 2021. On lexicographic proof rules for probabilistic termination. 24th International Symposium on Formal Methods. FM: Formal Methods, LNCS, vol. 13047, 619–639.","apa":"Chatterjee, K., Goharshady, E., Novotný, P., Zárevúcky, J., &#38; Zikelic, D. (2021). On lexicographic proof rules for probabilistic termination. In <i>24th International Symposium on Formal Methods</i> (Vol. 13047, pp. 619–639). Virtual: Springer Nature. <a href=\"https://doi.org/10.1007/978-3-030-90870-6_33\">https://doi.org/10.1007/978-3-030-90870-6_33</a>","ama":"Chatterjee K, Goharshady E, Novotný P, Zárevúcky J, Zikelic D. On lexicographic proof rules for probabilistic termination. In: <i>24th International Symposium on Formal Methods</i>. Vol 13047. Springer Nature; 2021:619-639. doi:<a href=\"https://doi.org/10.1007/978-3-030-90870-6_33\">10.1007/978-3-030-90870-6_33</a>"},"day":"10","page":"619-639","intvolume":"     13047","oa":1,"quality_controlled":"1","doi":"10.1007/978-3-030-90870-6_33","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2108.02188"}],"project":[{"grant_number":"863818","name":"Formal Methods for Stochastic Models: Algorithms and Applications","call_identifier":"H2020","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E"},{"call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","name":"International IST Doctoral Program","grant_number":"665385"}],"_id":"10414","month":"11","publication_status":"published","publisher":"Springer Nature","external_id":{"arxiv":["2108.02188"],"isi":["000758218600033"]},"abstract":[{"lang":"eng","text":"We consider the almost-sure (a.s.) termination problem for probabilistic programs, which are a stochastic extension of classical imperative programs. Lexicographic ranking functions provide a sound and practical approach for termination of non-probabilistic programs, and their extension to probabilistic programs is achieved via lexicographic ranking supermartingales (LexRSMs). However, LexRSMs introduced in the previous work have a limitation that impedes their automation: all of their components have to be non-negative in all reachable states. This might result in LexRSM not existing even for simple terminating programs. Our contributions are twofold: First, we introduce a generalization of LexRSMs which allows for some components to be negative. This standard feature of non-probabilistic termination proofs was hitherto not known to be sound in the probabilistic setting, as the soundness proof requires a careful analysis of the underlying stochastic process. Second, we present polynomial-time algorithms using our generalized LexRSMs for proving a.s. termination in broad classes of linear-arithmetic programs."}],"date_created":"2021-12-05T23:01:45Z","year":"2021","publication_identifier":{"issn":["0302-9743"],"isbn":["9-783-0309-0869-0"],"eissn":["1611-3349"],"eisbn":["978-3-030-90870-6"]},"date_published":"2021-11-10T00:00:00Z","acknowledgement":"This research was partially supported by the ERC CoG 863818 (ForM-SMArt), the Czech Science Foundation grant No. GJ19-15134Y, and the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385.","scopus_import":"1","department":[{"_id":"KrCh"}],"language":[{"iso":"eng"}],"status":"public","isi":1,"ec_funded":1,"fulldoi":"https://doi.org/10.1007/978-3-030-90870-6_33","arxiv":1},{"language":[{"iso":"eng"}],"status":"public","date_published":"2021-11-29T00:00:00Z","article_number":"42","department":[{"_id":"KrCh"}],"scopus_import":"1","corr_author":"1","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"fulldoi":"https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42","publication_status":"published","has_accepted_license":"1","file":[{"content_type":"application/pdf","date_updated":"2022-01-17T10:36:08Z","relation":"main_file","checksum":"71141acdeffa9056f24d6dbef952d254","file_size":891566,"access_level":"open_access","file_id":"10633","file_name":"2021_LIPIcs_Chatterjee.pdf","date_created":"2022-01-17T10:36:08Z","success":1,"creator":"cchlebak"}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","month":"11","_id":"10629","publication_identifier":{"isbn":["978-3-9597-7215-0"],"issn":["1868-8969"]},"abstract":[{"text":"Product graphs arise naturally in formal verification and program analysis. For example, the analysis of two concurrent threads requires the product of two component control-flow graphs, and for language inclusion of deterministic automata the product of two automata is constructed. In many cases, the component graphs have constant treewidth, e.g., when the input contains control-flow graphs of programs. We consider the algorithmic analysis of products of two constant-treewidth graphs with respect to three classic specification languages, namely, (a) algebraic properties, (b) mean-payoff properties, and (c) initial credit for energy properties.\r\nOur main contributions are as follows. Consider a graph G that is the product of two constant-treewidth graphs of size n each. First, given an idempotent semiring, we present an algorithm that computes the semiring transitive closure of G in time Õ(n⁴). Since the output has size Θ(n⁴), our algorithm is optimal (up to polylog factors). Second, given a mean-payoff objective, we present an O(n³)-time algorithm for deciding whether the value of a starting state is non-negative, improving the previously known O(n⁴) bound. Third, given an initial credit for energy objective, we present an O(n⁵)-time algorithm for computing the minimum initial credit for all nodes of G, improving the previously known O(n⁸) bound. At the heart of our approach lies an algorithm for the efficient construction of strongly-balanced tree decompositions of constant-treewidth graphs. Given a constant-treewidth graph G' of n nodes and a positive integer λ, our algorithm constructs a binary tree decomposition of G' of width O(λ) with the property that the size of each subtree decreases geometrically with rate (1/2 + 2^{-λ}).","lang":"eng"}],"date_created":"2022-01-16T23:01:28Z","year":"2021","day":"29","citation":{"ama":"Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. Quantitative verification on product graphs of small treewidth. In: <i>41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>. Vol 213. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2021. doi:<a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42\">10.4230/LIPIcs.FSTTCS.2021.42</a>","apa":"Chatterjee, K., Ibsen-Jensen, R., &#38; Pavlogiannis, A. (2021). Quantitative verification on product graphs of small treewidth. In <i>41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i> (Vol. 213). Virtual: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42\">https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42</a>","ista":"Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2021. Quantitative verification on product graphs of small treewidth. 41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science. FSTTCS: Foundations of Software Technology and Theoretical Computer Science, LIPIcs, vol. 213, 42.","mla":"Chatterjee, Krishnendu, et al. “Quantitative Verification on Product Graphs of Small Treewidth.” <i>41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>, vol. 213, 42, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021, doi:<a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42\">10.4230/LIPIcs.FSTTCS.2021.42</a>.","chicago":"Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis. “Quantitative Verification on Product Graphs of Small Treewidth.” In <i>41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>, Vol. 213. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021. <a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42\">https://doi.org/10.4230/LIPIcs.FSTTCS.2021.42</a>.","short":"K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, in:, 41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021.","ieee":"K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, “Quantitative verification on product graphs of small treewidth,” in <i>41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>, Virtual, 2021, vol. 213."},"doi":"10.4230/LIPIcs.FSTTCS.2021.42","intvolume":"       213","oa":1,"quality_controlled":"1","alternative_title":["LIPIcs"],"date_updated":"2024-10-09T21:01:23Z","oa_version":"Published Version","file_date_updated":"2022-01-17T10:36:08Z","article_processing_charge":"No","author":[{"orcid":"0000-0002-4561-241X","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu"},{"orcid":"0000-0003-4783-0389","full_name":"Ibsen-Jensen, Rasmus","id":"3B699956-F248-11E8-B48F-1D18A9856A87","first_name":"Rasmus","last_name":"Ibsen-Jensen"},{"orcid":"0000-0002-8943-0722","full_name":"Pavlogiannis, Andreas","id":"49704004-F248-11E8-B48F-1D18A9856A87","last_name":"Pavlogiannis","first_name":"Andreas"}],"title":"Quantitative verification on product graphs of small treewidth","conference":{"location":"Virtual","end_date":"2021-12-17","start_date":"2021-12-15","name":"FSTTCS: Foundations of Software Technology and Theoretical Computer Science"},"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","type":"conference","volume":213,"publication":"41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science","ddc":["000"]},{"article_processing_charge":"No","type":"conference","conference":{"location":"Virtual","end_date":"2021-12-17","start_date":"2021-12-15","name":"FSTTCS: Foundations of Software Technology and Theoretical Computer Science"},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"full_name":"Arrighi, Emmanuel","last_name":"Arrighi","first_name":"Emmanuel"},{"first_name":"Henning","last_name":"Fernau","full_name":"Fernau, Henning"},{"full_name":"Hoffmann, Stefan","last_name":"Hoffmann","first_name":"Stefan"},{"last_name":"Holzer","first_name":"Markus","full_name":"Holzer, Markus"},{"first_name":"Ismael R","last_name":"Jecker","full_name":"Jecker, Ismael R","id":"85D7C63E-7D5D-11E9-9C0F-98C4E5697425"},{"last_name":"De Oliveira Oliveira","first_name":"Mateus","full_name":"De Oliveira Oliveira, Mateus"},{"last_name":"Wolf","first_name":"Petra","full_name":"Wolf, Petra"}],"title":"On the complexity of intersection non-emptiness for star-free language classes","publication":"41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science","volume":213,"ddc":["000"],"alternative_title":["LIPIcs"],"date_updated":"2025-05-14T10:53:59Z","oa_version":"Published Version","file_date_updated":"2022-01-17T10:49:03Z","doi":"10.4230/LIPIcs.FSTTCS.2021.34","project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411"}],"oa":1,"intvolume":"       213","quality_controlled":"1","day":"29","citation":{"ama":"Arrighi E, Fernau H, Hoffmann S, et al. On the complexity of intersection non-emptiness for star-free language classes. In: <i>41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>. Vol 213. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2021. doi:<a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34\">10.4230/LIPIcs.FSTTCS.2021.34</a>","apa":"Arrighi, E., Fernau, H., Hoffmann, S., Holzer, M., Jecker, I. R., De Oliveira Oliveira, M., &#38; Wolf, P. (2021). On the complexity of intersection non-emptiness for star-free language classes. In <i>41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i> (Vol. 213). Virtual: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34\">https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34</a>","ista":"Arrighi E, Fernau H, Hoffmann S, Holzer M, Jecker IR, De Oliveira Oliveira M, Wolf P. 2021. On the complexity of intersection non-emptiness for star-free language classes. 41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science. FSTTCS: Foundations of Software Technology and Theoretical Computer Science, LIPIcs, vol. 213, 34.","mla":"Arrighi, Emmanuel, et al. “On the Complexity of Intersection Non-Emptiness for Star-Free Language Classes.” <i>41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>, vol. 213, 34, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021, doi:<a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34\">10.4230/LIPIcs.FSTTCS.2021.34</a>.","chicago":"Arrighi, Emmanuel, Henning Fernau, Stefan Hoffmann, Markus Holzer, Ismael R Jecker, Mateus De Oliveira Oliveira, and Petra Wolf. “On the Complexity of Intersection Non-Emptiness for Star-Free Language Classes.” In <i>41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>, Vol. 213. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021. <a href=\"https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34\">https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34</a>.","short":"E. Arrighi, H. Fernau, S. Hoffmann, M. Holzer, I.R. Jecker, M. De Oliveira Oliveira, P. Wolf, in:, 41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2021.","ieee":"E. Arrighi <i>et al.</i>, “On the complexity of intersection non-emptiness for star-free language classes,” in <i>41st IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science</i>, Virtual, 2021, vol. 213."},"publication_identifier":{"issn":["1868-8969"],"isbn":["978-3-9597-7215-0"]},"date_created":"2022-01-16T23:01:29Z","abstract":[{"lang":"eng","text":"In the Intersection Non-emptiness problem, we are given a list of finite automata A_1, A_2,… , A_m over a common alphabet Σ as input, and the goal is to determine whether some string w ∈ Σ^* lies in the intersection of the languages accepted by the automata in the list. We analyze the complexity of the Intersection Non-emptiness problem under the promise that all input automata accept a language in some level of the dot-depth hierarchy, or some level of the Straubing-Thérien hierarchy. Automata accepting languages from the lowest levels of these hierarchies arise naturally in the context of model checking. We identify a dichotomy in the dot-depth hierarchy by showing that the problem is already NP-complete when all input automata accept languages of the levels B_0 or B_{1/2} and already PSPACE-hard when all automata accept a language from the level B_1. Conversely, we identify a tetrachotomy in the Straubing-Thérien hierarchy. More precisely, we show that the problem is in AC^0 when restricted to level L_0; complete for L or NL, depending on the input representation, when restricted to languages in the level L_{1/2}; NP-complete when the input is given as DFAs accepting a language in L_1 or L_{3/2}; and finally, PSPACE-complete when the input automata accept languages in level L_2 or higher. Moreover, we show that the proof technique used to show containment in NP for DFAs accepting languages in L_1 or L_{3/2} does not generalize to the context of NFAs. To prove this, we identify a family of languages that provide an exponential separation between the state complexity of general NFAs and that of partially ordered NFAs. To the best of our knowledge, this is the first superpolynomial separation between these two models of computation."}],"year":"2021","has_accepted_license":"1","publication_status":"published","external_id":{"arxiv":["2110.01279"]},"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","file":[{"date_updated":"2022-01-17T10:49:03Z","content_type":"application/pdf","checksum":"d5a82ba893c3bc5da5914edbb3efb92b","file_size":844224,"relation":"main_file","file_name":"2021_LIPIcs_Arrighi.pdf","file_id":"10634","access_level":"open_access","creator":"cchlebak","date_created":"2022-01-17T10:49:03Z","success":1}],"_id":"10630","month":"11","arxiv":1,"ec_funded":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"fulldoi":"https://doi.org/10.4230/LIPIcs.FSTTCS.2021.34","language":[{"iso":"eng"}],"status":"public","acknowledgement":"We like to thank Lukas Fleischer and Michael Wehar for our discussions. This work started at the Schloss Dagstuhl Event 20483 Moderne Aspekte der Komplexitätstheorie in der Automatentheorie https://www.dagstuhl.de/20483.\r\n","article_number":"34","date_published":"2021-11-29T00:00:00Z","scopus_import":"1","department":[{"_id":"KrCh"}],"corr_author":"1"},{"arxiv":1,"ec_funded":1,"fulldoi":"https://doi.org/10.1137/1.9781611976465.38","language":[{"iso":"eng"}],"status":"public","date_published":"2021-01-01T00:00:00Z","acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award), ERC CoG 863818 (FoRM-SMArt), and by the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385.","corr_author":"1","department":[{"_id":"GradSch"},{"_id":"KrCh"}],"scopus_import":"1","publication_identifier":{"isbn":["978-1-61197-646-5"]},"abstract":[{"text":"In a two-player zero-sum graph game the players move a token throughout a graph to produce an infinite path, which determines the winner or payoff of the game. Traditionally, the players alternate turns in moving the token. In bidding games, however, the players have budgets, and in each turn, we hold an “auction” (bidding) to determine which player moves the token: both players simultaneously submit bids and the higher bidder moves the token. The bidding mechanisms differ in their payment schemes. Bidding games were largely studied with variants of first-price bidding in which only the higher bidder pays his bid. We focus on all-pay bidding, where both players pay their bids. Finite-duration all-pay bidding games were studied and shown to be technically more challenging than their first-price counterparts. We study for the first time, infinite-duration all-pay bidding games. Our most interesting results are for mean-payoff objectives: we portray a complete picture for games played on strongly-connected graphs. We study both pure (deterministic) and mixed (probabilistic) strategies and completely characterize the optimal and almost-sure (with probability 1) payoffs the players can respectively guarantee. We show that mean-payoff games under all-pay bidding exhibit the intriguing mathematical properties of their first-price counterparts; namely, an equivalence with random-turn games in which in each turn, the player who moves is selected according to a (biased) coin toss. The equivalences for all-pay bidding are more intricate and unexpected than for first-price bidding.","lang":"eng"}],"date_created":"2022-01-27T12:11:23Z","year":"2021","publication_status":"published","publisher":"Society for Industrial and Applied Mathematics","external_id":{"arxiv":["2005.06636"]},"_id":"10694","month":"01","doi":"10.1137/1.9781611976465.38","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2005.06636"}],"project":[{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"Formal methods for the design and analysis of complex systems"},{"grant_number":"863818","name":"Formal Methods for Stochastic Models: Algorithms and Applications","call_identifier":"H2020","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E"},{"grant_number":"665385","name":"International IST Doctoral Program","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"}],"oa":1,"quality_controlled":"1","day":"01","page":"617-636","citation":{"ista":"Avni G, Jecker IR, Zikelic D. 2021. Infinite-duration all-pay bidding games. Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms. SODA: Symposium on Discrete Algorithms, 617–636.","apa":"Avni, G., Jecker, I. R., &#38; Zikelic, D. (2021). Infinite-duration all-pay bidding games. In D. Marx (Ed.), <i>Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms</i> (pp. 617–636). Virtual: Society for Industrial and Applied Mathematics. <a href=\"https://doi.org/10.1137/1.9781611976465.38\">https://doi.org/10.1137/1.9781611976465.38</a>","ama":"Avni G, Jecker IR, Zikelic D. Infinite-duration all-pay bidding games. In: Marx D, ed. <i>Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms</i>. Society for Industrial and Applied Mathematics; 2021:617-636. doi:<a href=\"https://doi.org/10.1137/1.9781611976465.38\">10.1137/1.9781611976465.38</a>","ieee":"G. Avni, I. R. Jecker, and D. Zikelic, “Infinite-duration all-pay bidding games,” in <i>Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms</i>, Virtual, 2021, pp. 617–636.","chicago":"Avni, Guy, Ismael R Jecker, and Dorde Zikelic. “Infinite-Duration All-Pay Bidding Games.” In <i>Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms</i>, edited by Dániel Marx, 617–36. Society for Industrial and Applied Mathematics, 2021. <a href=\"https://doi.org/10.1137/1.9781611976465.38\">https://doi.org/10.1137/1.9781611976465.38</a>.","short":"G. Avni, I.R. Jecker, D. Zikelic, in:, D. Marx (Ed.), Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms, Society for Industrial and Applied Mathematics, 2021, pp. 617–636.","mla":"Avni, Guy, et al. “Infinite-Duration All-Pay Bidding Games.” <i>Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms</i>, edited by Dániel Marx, Society for Industrial and Applied Mathematics, 2021, pp. 617–36, doi:<a href=\"https://doi.org/10.1137/1.9781611976465.38\">10.1137/1.9781611976465.38</a>."},"editor":[{"full_name":"Marx, Dániel","last_name":"Marx","first_name":"Dániel"}],"article_processing_charge":"No","title":"Infinite-duration all-pay bidding games","author":[{"full_name":"Avni, Guy","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","first_name":"Guy","last_name":"Avni","orcid":"0000-0001-5588-8287"},{"full_name":"Jecker, Ismael R","id":"85D7C63E-7D5D-11E9-9C0F-98C4E5697425","last_name":"Jecker","first_name":"Ismael R"},{"full_name":"Zikelic, Dorde","id":"294AA7A6-F248-11E8-B48F-1D18A9856A87","last_name":"Zikelic","first_name":"Dorde","orcid":"0000-0002-4681-1699"}],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","type":"conference","conference":{"end_date":"2021-01-13","location":"Virtual","name":"SODA: Symposium on Discrete Algorithms","start_date":"2021-01-10"},"publication":"Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms","oa_version":"Preprint","date_updated":"2025-04-15T06:26:15Z"},{"publication":"Discrete Applied Mathematics","volume":289,"ddc":["510"],"article_processing_charge":"No","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","type":"journal_article","author":[{"first_name":"Martin","last_name":"Zeiner","full_name":"Zeiner, Martin"},{"full_name":"Schmid, Ulrich","last_name":"Schmid","first_name":"Ulrich"},{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu","orcid":"0000-0002-4561-241X"}],"title":"Optimal strategies for selecting coordinators","file_date_updated":"2021-02-04T11:28:42Z","oa_version":"Published Version","date_updated":"2026-04-16T09:15:13Z","oa":1,"intvolume":"       289","quality_controlled":"1","doi":"10.1016/j.dam.2020.10.022","project":[{"call_identifier":"FWF","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","grant_number":"S11402-N23","name":"Rigorous Systems Engineering"},{"call_identifier":"FWF","_id":"25863FF4-B435-11E9-9278-68D0E5697425","name":"Game Theory","grant_number":"S11407"}],"citation":{"ista":"Zeiner M, Schmid U, Chatterjee K. 2021. Optimal strategies for selecting coordinators. Discrete Applied Mathematics. 289(1), 392–415.","ama":"Zeiner M, Schmid U, Chatterjee K. Optimal strategies for selecting coordinators. <i>Discrete Applied Mathematics</i>. 2021;289(1):392-415. doi:<a href=\"https://doi.org/10.1016/j.dam.2020.10.022\">10.1016/j.dam.2020.10.022</a>","apa":"Zeiner, M., Schmid, U., &#38; Chatterjee, K. (2021). Optimal strategies for selecting coordinators. <i>Discrete Applied Mathematics</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.dam.2020.10.022\">https://doi.org/10.1016/j.dam.2020.10.022</a>","ieee":"M. Zeiner, U. Schmid, and K. Chatterjee, “Optimal strategies for selecting coordinators,” <i>Discrete Applied Mathematics</i>, vol. 289, no. 1. Elsevier, pp. 392–415, 2021.","mla":"Zeiner, Martin, et al. “Optimal Strategies for Selecting Coordinators.” <i>Discrete Applied Mathematics</i>, vol. 289, no. 1, Elsevier, 2021, pp. 392–415, doi:<a href=\"https://doi.org/10.1016/j.dam.2020.10.022\">10.1016/j.dam.2020.10.022</a>.","short":"M. Zeiner, U. Schmid, K. Chatterjee, Discrete Applied Mathematics 289 (2021) 392–415.","chicago":"Zeiner, Martin, Ulrich Schmid, and Krishnendu Chatterjee. “Optimal Strategies for Selecting Coordinators.” <i>Discrete Applied Mathematics</i>. Elsevier, 2021. <a href=\"https://doi.org/10.1016/j.dam.2020.10.022\">https://doi.org/10.1016/j.dam.2020.10.022</a>."},"day":"31","page":"392-415","article_type":"original","date_created":"2020-11-22T23:01:26Z","abstract":[{"lang":"eng","text":"We study optimal election sequences for repeatedly selecting a (very) small group of leaders among a set of participants (players) with publicly known unique ids. In every time slot, every player has to select exactly one player that it considers to be the current leader, oblivious to the selection of the other players, but with the overarching goal of maximizing a given parameterized global (“social”) payoff function in the limit. We consider a quite generic model, where the local payoff achieved by a given player depends, weighted by some arbitrary but fixed real parameter, on the number of different leaders chosen in a round, the number of players that choose the given player as the leader, and whether the chosen leader has changed w.r.t. the previous round or not. The social payoff can be the maximum, average or minimum local payoff of the players. Possible applications include quite diverse examples such as rotating coordinator-based distributed algorithms and long-haul formation flying of social birds. Depending on the weights and the particular social payoff, optimal sequences can be very different, from simple round-robin where all players chose the same leader alternatingly every time slot to very exotic patterns, where a small group of leaders (at most 2) is elected in every time slot. Moreover, we study the question if and when a single player would not benefit w.r.t. its local payoff when deviating from the given optimal sequence, i.e., when our optimal sequences are Nash equilibria in the restricted strategy space of oblivious strategies. As this is the case for many parameterizations of our model, our results reveal that no punishment is needed to make it rational for the players to optimize the social payoff."}],"year":"2021","publication_identifier":{"issn":["0166-218X"],"eissn":["1872-6771"]},"month":"01","_id":"8793","has_accepted_license":"1","publication_status":"published","external_id":{"isi":["000596823800035"]},"publisher":"Elsevier","file":[{"file_size":652739,"checksum":"f1039ff5a2d6ca116720efdb84ee9d5e","relation":"main_file","date_updated":"2021-02-04T11:28:42Z","content_type":"application/pdf","creator":"dernst","success":1,"date_created":"2021-02-04T11:28:42Z","file_name":"2021_DiscreteApplMath_Zeiner.pdf","access_level":"open_access","file_id":"9089"}],"issue":"1","isi":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"fulldoi":"https://doi.org/10.1016/j.dam.2020.10.022","acknowledgement":"We are grateful to Matthias Függer and Thomas Nowak for having raised our interest in the problem studied in this paper.\r\nThis work has been supported the Austrian Science Fund (FWF) projects S11405, S11407 (RiSE), and P28182 (ADynNet).","date_published":"2021-01-31T00:00:00Z","department":[{"_id":"KrCh"}],"scopus_import":"1","corr_author":"1","language":[{"iso":"eng"}],"status":"public"},{"year":"2021","abstract":[{"lang":"eng","text":" matching is compatible to two or more labeled point sets of size n with labels   {1,…,n}  if its straight-line drawing on each of these point sets is crossing-free. We study the maximum number of edges in a matching compatible to two or more labeled point sets in general position in the plane. We show that for any two labeled convex sets of n points there exists a compatible matching with   ⌊2n−−√⌋  edges. More generally, for any   ℓ  labeled point sets we construct compatible matchings of size   Ω(n1/ℓ) . As a corresponding upper bound, we use probabilistic arguments to show that for any   ℓ  given sets of n points there exists a labeling of each set such that the largest compatible matching has   O(n2/(ℓ+1))  edges. Finally, we show that   Θ(logn)  copies of any set of n points are necessary and sufficient for the existence of a labeling such that any compatible matching consists only of a single edge."}],"date_created":"2021-03-28T22:01:41Z","publication_identifier":{"eisbn":["9783030682118"],"isbn":["9783030682101"],"eissn":["1611-3349"],"issn":["0302-9743"]},"_id":"9296","month":"02","publisher":"Springer Nature","external_id":{"arxiv":["2101.03928"],"isi":["001435069600018"]},"publication_status":"published","fulldoi":"https://doi.org/10.1007/978-3-030-68211-8_18","isi":1,"ec_funded":1,"arxiv":1,"scopus_import":"1","department":[{"_id":"UlWa"},{"_id":"HeEd"},{"_id":"KrCh"}],"date_published":"2021-02-16T00:00:00Z","acknowledgement":"A.A. funded by the Marie Skłodowska-Curie grant agreement No. 754411. Z.M. partially funded by Wittgenstein Prize, Austrian Science Fund (FWF), grant no. Z 342-N31. I.P., D.P., and B.V. partially supported by FWF within the collaborative DACH project Arrangements and Drawings as FWF project I 3340-N35. A.P. supported by a Schrödinger fellowship of the FWF: J-3847-N35. J.T. partially supported by ERC Start grant no. (279307: Graph Games), FWF grant no. P23499-N23 and S11407-N23 (RiSE).","status":"public","language":[{"iso":"eng"}],"volume":12635,"publication":"15th International Conference on Algorithms and Computation","title":"On compatible matchings","author":[{"first_name":"Oswin","last_name":"Aichholzer","full_name":"Aichholzer, Oswin"},{"first_name":"Alan M","last_name":"Arroyo Guevara","full_name":"Arroyo Guevara, Alan M","id":"3207FDC6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-2401-8670"},{"orcid":"0000-0002-6660-1322","last_name":"Masárová","first_name":"Zuzana","full_name":"Masárová, Zuzana","id":"45CFE238-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Parada, Irene","last_name":"Parada","first_name":"Irene"},{"first_name":"Daniel","last_name":"Perz","full_name":"Perz, Daniel"},{"full_name":"Pilz, Alexander","last_name":"Pilz","first_name":"Alexander"},{"orcid":"0000-0002-1097-9684","full_name":"Tkadlec, Josef","id":"3F24CCC8-F248-11E8-B48F-1D18A9856A87","first_name":"Josef","last_name":"Tkadlec"},{"full_name":"Vogtenhuber, Birgit","last_name":"Vogtenhuber","first_name":"Birgit"}],"conference":{"start_date":"2021-02-28","name":"WALCOM: Algorithms and Computation","location":"Yangon, Myanmar","end_date":"2021-03-02"},"type":"conference","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","article_processing_charge":"No","related_material":{"record":[{"relation":"later_version","id":"11938","status":"public"}]},"date_updated":"2026-04-16T09:18:21Z","alternative_title":["LNCS"],"oa_version":"Preprint","quality_controlled":"1","intvolume":"     12635","oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2101.03928"}],"project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411"},{"grant_number":"Z00342","name":"Mathematics, Computer Science","call_identifier":"FWF","_id":"268116B8-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FP7","_id":"2581B60A-B435-11E9-9278-68D0E5697425","name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307"},{"call_identifier":"FWF","_id":"2584A770-B435-11E9-9278-68D0E5697425","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"}],"doi":"10.1007/978-3-030-68211-8_18","citation":{"short":"O. Aichholzer, A.M. Arroyo Guevara, Z. Masárová, I. Parada, D. Perz, A. Pilz, J. Tkadlec, B. Vogtenhuber, in:, 15th International Conference on Algorithms and Computation, Springer Nature, 2021, pp. 221–233.","chicago":"Aichholzer, Oswin, Alan M Arroyo Guevara, Zuzana Masárová, Irene Parada, Daniel Perz, Alexander Pilz, Josef Tkadlec, and Birgit Vogtenhuber. “On Compatible Matchings.” In <i>15th International Conference on Algorithms and Computation</i>, 12635:221–33. Springer Nature, 2021. <a href=\"https://doi.org/10.1007/978-3-030-68211-8_18\">https://doi.org/10.1007/978-3-030-68211-8_18</a>.","mla":"Aichholzer, Oswin, et al. “On Compatible Matchings.” <i>15th International Conference on Algorithms and Computation</i>, vol. 12635, Springer Nature, 2021, pp. 221–33, doi:<a href=\"https://doi.org/10.1007/978-3-030-68211-8_18\">10.1007/978-3-030-68211-8_18</a>.","ieee":"O. Aichholzer <i>et al.</i>, “On compatible matchings,” in <i>15th International Conference on Algorithms and Computation</i>, Yangon, Myanmar, 2021, vol. 12635, pp. 221–233.","apa":"Aichholzer, O., Arroyo Guevara, A. M., Masárová, Z., Parada, I., Perz, D., Pilz, A., … Vogtenhuber, B. (2021). On compatible matchings. In <i>15th International Conference on Algorithms and Computation</i> (Vol. 12635, pp. 221–233). Yangon, Myanmar: Springer Nature. <a href=\"https://doi.org/10.1007/978-3-030-68211-8_18\">https://doi.org/10.1007/978-3-030-68211-8_18</a>","ama":"Aichholzer O, Arroyo Guevara AM, Masárová Z, et al. On compatible matchings. In: <i>15th International Conference on Algorithms and Computation</i>. Vol 12635. Springer Nature; 2021:221-233. doi:<a href=\"https://doi.org/10.1007/978-3-030-68211-8_18\">10.1007/978-3-030-68211-8_18</a>","ista":"Aichholzer O, Arroyo Guevara AM, Masárová Z, Parada I, Perz D, Pilz A, Tkadlec J, Vogtenhuber B. 2021. On compatible matchings. 15th International Conference on Algorithms and Computation. WALCOM: Algorithms and Computation, LNCS, vol. 12635, 221–233."},"page":"221-233","day":"16"}]