---
_id: '5413'
abstract:
- lang: eng
  text: "We consider Markov decision processes (MDPs) which are a standard model for
    probabilistic systems. We focus on qualitative properties for MDPs that can express
    that desired behaviors of the system arise almost-surely (with probability 1)
    or with positive probability.\r\nWe introduce a new simulation relation to capture
    the refinement relation of MDPs with respect to qualitative properties, and present
    discrete graph theoretic algorithms with quadratic complexity to compute the simulation
    relation.\r\nWe present an automated technique for assume-guarantee style reasoning
    for compositional analysis of MDPs with qualitative properties by giving a counter-example
    guided abstraction-refinement approach to compute our new simulation relation.
    We have implemented our algorithms and show that the compositional analysis leads
    to significant improvements. "
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Przemyslaw
  full_name: Daca, Przemyslaw
  id: 49351290-F248-11E8-B48F-1D18A9856A87
  last_name: Daca
- first_name: Martin
  full_name: Chmelik, Martin
  id: 3624234E-F248-11E8-B48F-1D18A9856A87
  last_name: Chmelik
citation:
  ama: Chatterjee K, Daca P, Chmelik M. <i>CEGAR for Qualitative Analysis of Probabilistic
    Systems</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-153-v2-2">10.15479/AT:IST-2014-153-v2-2</a>
  apa: Chatterjee, K., Daca, P., &#38; Chmelik, M. (2014). <i>CEGAR for qualitative
    analysis of probabilistic systems</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-153-v2-2">https://doi.org/10.15479/AT:IST-2014-153-v2-2</a>
  chicago: Chatterjee, Krishnendu, Przemyslaw Daca, and Martin Chmelik. <i>CEGAR for
    Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-153-v2-2">https://doi.org/10.15479/AT:IST-2014-153-v2-2</a>.
  ieee: K. Chatterjee, P. Daca, and M. Chmelik, <i>CEGAR for qualitative analysis
    of probabilistic systems</i>. IST Austria, 2014.
  ista: Chatterjee K, Daca P, Chmelik M. 2014. CEGAR for qualitative analysis of probabilistic
    systems, IST Austria, 33p.
  mla: Chatterjee, Krishnendu, et al. <i>CEGAR for Qualitative Analysis of Probabilistic
    Systems</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-153-v2-2">10.15479/AT:IST-2014-153-v2-2</a>.
  short: K. Chatterjee, P. Daca, M. Chmelik, CEGAR for Qualitative Analysis of Probabilistic
    Systems, IST Austria, 2014.
date_created: 2018-12-12T11:39:11Z
date_published: 2014-02-06T00:00:00Z
date_updated: 2025-04-15T07:56:48Z
day: '06'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-153-v2-2
file:
- access_level: open_access
  checksum: ce4967a184d84863eec76c66cbac1614
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:17Z
  date_updated: 2020-07-14T12:46:47Z
  file_id: '5539'
  file_name: IST-2014-153-v2+2_main.pdf
  file_size: 606049
  relation: main_file
file_date_updated: 2020-07-14T12:46:47Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '33'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '164'
related_material:
  record:
  - id: '5412'
    relation: earlier_version
    status: public
  - id: '5414'
    relation: later_version
    status: public
  - id: '2063'
    relation: later_version
    status: public
status: public
title: CEGAR for qualitative analysis of probabilistic systems
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5414'
abstract:
- lang: eng
  text: "We consider Markov decision processes (MDPs) which are a standard model for
    probabilistic systems. We focus on qualitative properties for MDPs that can express
    that desired behaviors of the system arise almost-surely (with probability 1)
    or with positive probability.\r\nWe introduce a new simulation relation to capture
    the refinement relation of MDPs with respect to qualitative properties, and present
    discrete graph theoretic algorithms with quadratic complexity to compute the simulation
    relation.\r\nWe present an automated technique for assume-guarantee style reasoning
    for compositional analysis of MDPs with qualitative properties by giving a counter-example
    guided abstraction-refinement approach to compute our new simulation relation.
    \r\nWe have implemented our algorithms and show that the compositional analysis
    leads to significant improvements. "
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Przemyslaw
  full_name: Daca, Przemyslaw
  id: 49351290-F248-11E8-B48F-1D18A9856A87
  last_name: Daca
- first_name: Martin
  full_name: Chmelik, Martin
  id: 3624234E-F248-11E8-B48F-1D18A9856A87
  last_name: Chmelik
citation:
  ama: Chatterjee K, Daca P, Chmelik M. <i>CEGAR for Qualitative Analysis of Probabilistic
    Systems</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-153-v3-1">10.15479/AT:IST-2014-153-v3-1</a>
  apa: Chatterjee, K., Daca, P., &#38; Chmelik, M. (2014). <i>CEGAR for qualitative
    analysis of probabilistic systems</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-153-v3-1">https://doi.org/10.15479/AT:IST-2014-153-v3-1</a>
  chicago: Chatterjee, Krishnendu, Przemyslaw Daca, and Martin Chmelik. <i>CEGAR for
    Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-153-v3-1">https://doi.org/10.15479/AT:IST-2014-153-v3-1</a>.
  ieee: K. Chatterjee, P. Daca, and M. Chmelik, <i>CEGAR for qualitative analysis
    of probabilistic systems</i>. IST Austria, 2014.
  ista: Chatterjee K, Daca P, Chmelik M. 2014. CEGAR for qualitative analysis of probabilistic
    systems, IST Austria, 33p.
  mla: Chatterjee, Krishnendu, et al. <i>CEGAR for Qualitative Analysis of Probabilistic
    Systems</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-153-v3-1">10.15479/AT:IST-2014-153-v3-1</a>.
  short: K. Chatterjee, P. Daca, M. Chmelik, CEGAR for Qualitative Analysis of Probabilistic
    Systems, IST Austria, 2014.
date_created: 2018-12-12T11:39:12Z
date_published: 2014-02-07T00:00:00Z
date_updated: 2025-04-15T07:56:48Z
day: '07'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-153-v3-1
file:
- access_level: open_access
  checksum: 87b93fe9af71fc5c94b0eb6151537e11
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:03Z
  date_updated: 2020-07-14T12:46:48Z
  file_id: '5464'
  file_name: IST-2014-153-v3+1_main.pdf
  file_size: 606227
  relation: main_file
file_date_updated: 2020-07-14T12:46:48Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '33'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '165'
related_material:
  record:
  - id: '5412'
    relation: earlier_version
    status: public
  - id: '5413'
    relation: earlier_version
    status: public
  - id: '2063'
    relation: later_version
    status: public
status: public
title: CEGAR for qualitative analysis of probabilistic systems
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5415'
abstract:
- lang: eng
  text: 'Recently there has been a significant effort to add quantitative properties
    in formal verification and synthesis. While weighted automata over finite and
    infinite words provide a natural and flexible framework to express quantitative
    properties, perhaps surprisingly, several basic system properties such as average
    response time cannot be expressed with weighted automata. In this work, we introduce
    nested weighted automata as a new formalism for expressing important quantitative
    properties such as average response time. We establish an almost complete decidability
    picture for the basic decision problems for nested weighted automata, and illustrate
    its applicability in several domains.  '
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Jan
  full_name: Otop, Jan
  id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
  last_name: Otop
citation:
  ama: Chatterjee K, Henzinger TA, Otop J. <i>Nested Weighted Automata</i>. IST Austria;
    2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-170-v1-1">10.15479/AT:IST-2014-170-v1-1</a>
  apa: Chatterjee, K., Henzinger, T. A., &#38; Otop, J. (2014). <i>Nested weighted
    automata</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-170-v1-1">https://doi.org/10.15479/AT:IST-2014-170-v1-1</a>
  chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. <i>Nested Weighted
    Automata</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-170-v1-1">https://doi.org/10.15479/AT:IST-2014-170-v1-1</a>.
  ieee: K. Chatterjee, T. A. Henzinger, and J. Otop, <i>Nested weighted automata</i>.
    IST Austria, 2014.
  ista: Chatterjee K, Henzinger TA, Otop J. 2014. Nested weighted automata, IST Austria,
    27p.
  mla: Chatterjee, Krishnendu, et al. <i>Nested Weighted Automata</i>. IST Austria,
    2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-170-v1-1">10.15479/AT:IST-2014-170-v1-1</a>.
  short: K. Chatterjee, T.A. Henzinger, J. Otop, Nested Weighted Automata, IST Austria,
    2014.
date_created: 2018-12-12T11:39:12Z
date_published: 2014-02-19T00:00:00Z
date_updated: 2025-09-23T09:39:58Z
day: '19'
ddc:
- '004'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2014-170-v1-1
file:
- access_level: open_access
  checksum: 31f90dcf2cf899c3f8c6427cfcc2b3c7
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:36Z
  date_updated: 2020-07-14T12:46:48Z
  file_id: '5497'
  file_name: IST-2014-170-v1+1_main.pdf
  file_size: 573457
  relation: main_file
file_date_updated: 2020-07-14T12:46:48Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '27'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '170'
related_material:
  record:
  - id: '5436'
    relation: later_version
    status: public
  - id: '467'
    relation: later_version
    status: public
  - id: '1656'
    relation: later_version
    status: public
status: public
title: Nested weighted automata
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5416'
abstract:
- lang: eng
  text: As hybrid systems involve continuous behaviors, they should be evaluated by
    quantitative methods, rather than qualitative methods. In this paper we adapt
    a quantitative framework, called model measuring, to the hybrid systems domain.
    The model-measuring problem asks, given a model M and a specification, what is
    the maximal distance such that all models within that distance from M satisfy
    (or violate) the specification. A distance function on models is given as part
    of the input of the problem. Distances, especially related to continuous behaviors
    are more natural in the hybrid case than the discrete case. We are interested
    in distances represented by monotonic hybrid automata, a hybrid counterpart of
    (discrete) weighted automata, whose recognized timed languages are monotone (w.r.t.
    inclusion) in the values of parameters.The contributions of this paper are twofold.
    First, we give sufficient conditions under which the model-measuring problem can
    be solved. Second, we discuss the modeling of distances and applications of the
    model-measuring problem.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Jan
  full_name: Otop, Jan
  id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
  last_name: Otop
citation:
  ama: Henzinger TA, Otop J. <i>Model Measuring for Hybrid Systems</i>. IST Austria;
    2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-171-v1-1">10.15479/AT:IST-2014-171-v1-1</a>
  apa: Henzinger, T. A., &#38; Otop, J. (2014). <i>Model measuring for hybrid systems</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-171-v1-1">https://doi.org/10.15479/AT:IST-2014-171-v1-1</a>
  chicago: Henzinger, Thomas A, and Jan Otop. <i>Model Measuring for Hybrid Systems</i>.
    IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-171-v1-1">https://doi.org/10.15479/AT:IST-2014-171-v1-1</a>.
  ieee: T. A. Henzinger and J. Otop, <i>Model measuring for hybrid systems</i>. IST
    Austria, 2014.
  ista: Henzinger TA, Otop J. 2014. Model measuring for hybrid systems, IST Austria,
    22p.
  mla: Henzinger, Thomas A., and Jan Otop. <i>Model Measuring for Hybrid Systems</i>.
    IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-171-v1-1">10.15479/AT:IST-2014-171-v1-1</a>.
  short: T.A. Henzinger, J. Otop, Model Measuring for Hybrid Systems, IST Austria,
    2014.
date_created: 2018-12-12T11:39:12Z
date_published: 2014-02-19T00:00:00Z
date_updated: 2025-06-26T08:32:32Z
day: '19'
ddc:
- '005'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2014-171-v1-1
file:
- access_level: open_access
  checksum: 445456d22371e4e49aad2b9a0c13bf80
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:32Z
  date_updated: 2020-07-14T12:46:49Z
  file_id: '5492'
  file_name: IST-2014-171-v1+1_report.pdf
  file_size: 712077
  relation: main_file
file_date_updated: 2020-07-14T12:46:49Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '22'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '171'
related_material:
  record:
  - id: '2217'
    relation: later_version
    status: public
status: public
title: Model measuring for hybrid systems
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5417'
abstract:
- lang: eng
  text: "We define the model-measuring problem: given a model M and specification
    φ, what is the maximal distance ρ such that all models M'within distance ρ from
    M satisfy (or violate)φ. The model measuring problem presupposes a distance function
    on models. We concentrate on automatic distance functions, which are defined by
    weighted automata.\r\nThe model-measuring problem subsumes several generalizations
    of the classical model-checking problem, in particular, quantitative model-checking
    problems that measure the degree of satisfaction of a specification, and robustness
    problems that measure how much a model can be perturbed without violating the
    specification.\r\nWe show that for automatic distance functions, and ω-regular
    linear-time and branching-time specifications, the model-measuring problem can
    be solved.\r\nWe use automata-theoretic model-checking methods for model measuring,
    replacing the emptiness question for standard word and tree automata by the optimal-weight
    question for the weighted versions of these automata. We consider weighted automata
    that accumulate weights by maximizing, summing, discounting, and limit averaging.
    \r\nWe give several examples of using the model-measuring problem to compute various
    notions of robustness and quantitative satisfaction for temporal specifications."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Jan
  full_name: Otop, Jan
  id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
  last_name: Otop
citation:
  ama: Henzinger TA, Otop J. <i>From Model Checking to Model Measuring</i>. IST Austria;
    2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-172-v1-1">10.15479/AT:IST-2014-172-v1-1</a>
  apa: Henzinger, T. A., &#38; Otop, J. (2014). <i>From model checking to model measuring</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-172-v1-1">https://doi.org/10.15479/AT:IST-2014-172-v1-1</a>
  chicago: Henzinger, Thomas A, and Jan Otop. <i>From Model Checking to Model Measuring</i>.
    IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-172-v1-1">https://doi.org/10.15479/AT:IST-2014-172-v1-1</a>.
  ieee: T. A. Henzinger and J. Otop, <i>From model checking to model measuring</i>.
    IST Austria, 2014.
  ista: Henzinger TA, Otop J. 2014. From model checking to model measuring, IST Austria,
    14p.
  mla: Henzinger, Thomas A., and Jan Otop. <i>From Model Checking to Model Measuring</i>.
    IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-172-v1-1">10.15479/AT:IST-2014-172-v1-1</a>.
  short: T.A. Henzinger, J. Otop, From Model Checking to Model Measuring, IST Austria,
    2014.
date_created: 2018-12-12T11:39:13Z
date_published: 2014-02-19T00:00:00Z
date_updated: 2024-10-21T06:02:58Z
day: '19'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2014-172-v1-1
file:
- access_level: open_access
  checksum: fcc3eab903cfcd3778b338d2d0d44d18
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:20Z
  date_updated: 2020-07-14T12:46:49Z
  file_id: '5481'
  file_name: IST-2014-172-v1+1_report.pdf
  file_size: 383052
  relation: main_file
file_date_updated: 2020-07-14T12:46:49Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '14'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '175'
related_material:
  record:
  - id: '2327'
    relation: later_version
    status: public
status: public
title: From model checking to model measuring
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5418'
abstract:
- lang: eng
  text: We consider multi-player graph games with partial-observation and parity objective.
    While the decision problem for three-player games with a coalition of the first
    and second players against the third player is undecidable, we present a decidability
    result for partial-observation games where the first and third player are in a
    coalition against the second player, thus where the second player is adversarial
    but weaker due to partial-observation. We establish tight complexity bounds in
    the case where player 1 is less informed than player 2, namely 2-EXPTIME-completeness
    for parity objectives. The symmetric case of player 1 more informed than player
    2 is much more complicated, and we show that already in the case where player
    1 has perfect observation, memory of size non-elementary is necessary in general
    for reachability objectives, and the problem is decidable for safety and reachability
    objectives. Our results have tight connections with partial-observation stochastic
    games for which we derive new complexity results.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Laurent
  full_name: Doyen, Laurent
  last_name: Doyen
citation:
  ama: Chatterjee K, Doyen L. <i>Games with a Weak Adversary</i>. IST Austria; 2014.
    doi:<a href="https://doi.org/10.15479/AT:IST-2014-176-v1-1">10.15479/AT:IST-2014-176-v1-1</a>
  apa: Chatterjee, K., &#38; Doyen, L. (2014). <i>Games with a weak adversary</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-176-v1-1">https://doi.org/10.15479/AT:IST-2014-176-v1-1</a>
  chicago: Chatterjee, Krishnendu, and Laurent Doyen. <i>Games with a Weak Adversary</i>.
    IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-176-v1-1">https://doi.org/10.15479/AT:IST-2014-176-v1-1</a>.
  ieee: K. Chatterjee and L. Doyen, <i>Games with a weak adversary</i>. IST Austria,
    2014.
  ista: Chatterjee K, Doyen L. 2014. Games with a weak adversary, IST Austria, 18p.
  mla: Chatterjee, Krishnendu, and Laurent Doyen. <i>Games with a Weak Adversary</i>.
    IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-176-v1-1">10.15479/AT:IST-2014-176-v1-1</a>.
  short: K. Chatterjee, L. Doyen, Games with a Weak Adversary, IST Austria, 2014.
date_created: 2018-12-12T11:39:13Z
date_published: 2014-03-22T00:00:00Z
date_updated: 2025-04-15T07:55:59Z
day: '22'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-176-v1-1
file:
- access_level: open_access
  checksum: 1d6958aa60050e1c3e932c6e5f34c39f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:07Z
  date_updated: 2020-07-14T12:46:49Z
  file_id: '5468'
  file_name: IST-2014-176-v1+1_icalp_14.pdf
  file_size: 328253
  relation: main_file
file_date_updated: 2020-07-14T12:46:49Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: '18'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '176'
related_material:
  record:
  - id: '2163'
    relation: later_version
    status: public
status: public
title: Games with a weak adversary
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5419'
abstract:
- lang: eng
  text: "We consider the reachability and shortest path problems on low tree-width
    graphs, with n nodes, m edges, and tree-width t, on a standard RAM with wordsize
    W. We use O to hide polynomial factors of the inverse of the Ackermann function.
    Our main contributions are three fold:\r\n1. For reachability, we present an algorithm
    that requires O(n·t2·log(n/t)) preprocessing time, O(n·(t·log(n/t))/W) space,
    and O(t/W) time for pair queries and O((n·t)/W) time for single-source queries.
    Note that for constant t our algorithm uses O(n·logn) time for preprocessing;
    and O(n/W) time for single-source queries, which is faster than depth first search/breath
    first search (after the preprocessing).\r\n2. We present an algorithm for shortest
    path that requires O(n·t2) preprocessing time, O(n·t) space, and O(t2) time for
    pair queries and O(n·t) time single-source queries.\r\n3. We give a space versus
    query time trade-off algorithm for shortest path that, given any constant >0,
    requires O(n·t2) preprocessing time, O(n·t2) space, and O(n1−·t2) time for pair
    queries.\r\nOur algorithms improve all existing results, and use very simple data
    structures."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
citation:
  ama: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. <i>Improved Algorithms for Reachability
    and Shortest Path on Low Tree-Width Graphs</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-187-v1-1">10.15479/AT:IST-2014-187-v1-1</a>
  apa: Chatterjee, K., Ibsen-Jensen, R., &#38; Pavlogiannis, A. (2014). <i>Improved
    algorithms for reachability and shortest path on low tree-width graphs</i>. IST
    Austria. <a href="https://doi.org/10.15479/AT:IST-2014-187-v1-1">https://doi.org/10.15479/AT:IST-2014-187-v1-1</a>
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis.
    <i>Improved Algorithms for Reachability and Shortest Path on Low Tree-Width Graphs</i>.
    IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-187-v1-1">https://doi.org/10.15479/AT:IST-2014-187-v1-1</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, <i>Improved algorithms
    for reachability and shortest path on low tree-width graphs</i>. IST Austria,
    2014.
  ista: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2014. Improved algorithms for
    reachability and shortest path on low tree-width graphs, IST Austria, 34p.
  mla: Chatterjee, Krishnendu, et al. <i>Improved Algorithms for Reachability and
    Shortest Path on Low Tree-Width Graphs</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-187-v1-1">10.15479/AT:IST-2014-187-v1-1</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, Improved Algorithms for
    Reachability and Shortest Path on Low Tree-Width Graphs, IST Austria, 2014.
date_created: 2018-12-12T11:39:13Z
date_published: 2014-04-14T00:00:00Z
date_updated: 2021-01-12T08:02:03Z
day: '14'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-187-v1-1
file:
- access_level: open_access
  checksum: c608e66030a4bf51d2d99b451f539b99
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:25Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5548'
  file_name: IST-2014-187-v1+1_main_full_tech.pdf
  file_size: 670031
  relation: main_file
file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '34'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '187'
status: public
title: Improved algorithms for reachability and shortest path on low tree-width graphs
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5420'
abstract:
- lang: eng
  text: 'We consider concurrent mean-payoff games, a very well-studied class of two-player
    (player 1 vs player 2) zero-sum games on finite-state graphs where every transition
    is assigned a reward between 0 and 1, and the payoff function is the long-run
    average of the rewards. The value is the maximal expected payoff that player 1
    can guarantee against all strategies of player 2. We consider the computation
    of the set of states with value 1 under finite-memory strategies for player 1,
    and our main results for the problem are as follows: (1) we present a polynomial-time
    algorithm; (2) we show that whenever there is a finite-memory strategy, there
    is a stationary strategy that does not need memory at all; and (3) we present
    an optimal bound (which is double exponential) on the patience of stationary strategies
    (where patience of a distribution is the inverse of the smallest positive probability
    and represents a complexity measure of a stationary strategy).'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
citation:
  ama: Chatterjee K, Ibsen-Jensen R. <i>The Value 1 Problem for Concurrent Mean-Payoff
    Games</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-191-v1-1">10.15479/AT:IST-2014-191-v1-1</a>
  apa: Chatterjee, K., &#38; Ibsen-Jensen, R. (2014). <i>The value 1 problem for concurrent
    mean-payoff games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-191-v1-1">https://doi.org/10.15479/AT:IST-2014-191-v1-1</a>
  chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. <i>The Value 1 Problem
    for Concurrent Mean-Payoff Games</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-191-v1-1">https://doi.org/10.15479/AT:IST-2014-191-v1-1</a>.
  ieee: K. Chatterjee and R. Ibsen-Jensen, <i>The value 1 problem for concurrent mean-payoff
    games</i>. IST Austria, 2014.
  ista: Chatterjee K, Ibsen-Jensen R. 2014. The value 1 problem for concurrent mean-payoff
    games, IST Austria, 49p.
  mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. <i>The Value 1 Problem for
    Concurrent Mean-Payoff Games</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-191-v1-1">10.15479/AT:IST-2014-191-v1-1</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, The Value 1 Problem for Concurrent Mean-Payoff
    Games, IST Austria, 2014.
date_created: 2018-12-12T11:39:14Z
date_published: 2014-04-14T00:00:00Z
date_updated: 2021-01-12T08:02:05Z
day: '14'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-191-v1-1
file:
- access_level: open_access
  checksum: 49e0fd3e62650346daf7dc04604f7a0a
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:58Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5520'
  file_name: IST-2014-191-v1+1_main_full.pdf
  file_size: 584368
  relation: main_file
file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '49'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '191'
status: public
title: The value 1 problem for concurrent mean-payoff games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5421'
abstract:
- lang: eng
  text: 'Evolution occurs in populations of reproducing individuals. The structure
    of the population affects the outcome of the evolutionary process. Evolutionary
    graph theory is a powerful approach to study this phenomenon. There are two graphs.
    The interaction graph specifies who interacts with whom in the context of evolution.
    The replacement graph specifies who competes with whom for reproduction. The vertices
    of the two graphs are the same, and each vertex corresponds to an individual.
    A key quantity is the fixation probability of a new mutant. It is defined as the
    probability that a newly introduced mutant (on a single vertex) generates a lineage
    of offspring which eventually takes over the entire population of resident individuals.
    The basic computational questions are as follows: (i) the qualitative question
    asks whether the fixation probability is positive; and (ii) the quantitative approximation
    question asks for an approximation of the fixation probability. Our main results
    are: (1) We show that the qualitative question is NP-complete and the quantitative
    approximation question is #P-hard in the special case when the interaction and
    the replacement graphs coincide and even with the restriction that the resident
    individuals do not reproduce (which corresponds to an invading population taking
    over an empty structure). (2) We show that in general the qualitative question
    is PSPACE-complete and the quantitative approximation question is PSPACE-hard
    and can be solved in exponential time.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Martin
  full_name: Nowak, Martin
  last_name: Nowak
citation:
  ama: Chatterjee K, Ibsen-Jensen R, Nowak M. <i>The Complexity of Evolution on Graphs</i>.
    IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-190-v2-2">10.15479/AT:IST-2014-190-v2-2</a>
  apa: Chatterjee, K., Ibsen-Jensen, R., &#38; Nowak, M. (2014). <i>The complexity
    of evolution on graphs</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-190-v2-2">https://doi.org/10.15479/AT:IST-2014-190-v2-2</a>
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Martin Nowak. <i>The Complexity
    of Evolution on Graphs</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-190-v2-2">https://doi.org/10.15479/AT:IST-2014-190-v2-2</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, and M. Nowak, <i>The complexity of evolution
    on graphs</i>. IST Austria, 2014.
  ista: Chatterjee K, Ibsen-Jensen R, Nowak M. 2014. The complexity of evolution on
    graphs, IST Austria, 27p.
  mla: Chatterjee, Krishnendu, et al. <i>The Complexity of Evolution on Graphs</i>.
    IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-190-v2-2">10.15479/AT:IST-2014-190-v2-2</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, M. Nowak, The Complexity of Evolution on
    Graphs, IST Austria, 2014.
date_created: 2018-12-12T11:39:14Z
date_published: 2014-04-18T00:00:00Z
date_updated: 2023-02-23T12:26:33Z
day: '18'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-190-v2-2
file:
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  checksum: 42f3d8b563286eb0d903832bd9a848d3
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  date_created: 2018-12-12T11:54:16Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5538'
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  file_size: 443529
  relation: main_file
- access_level: open_access
  checksum: 0c9a2fd822309719634495a35957e34d
  content_type: application/pdf
  creator: kschuh
  date_created: 2019-09-06T07:30:20Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '6852'
  file_name: IST-2014-190-v1+1_main_full.pdf
  file_size: 440911
  relation: main_file
file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '27'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '190'
related_material:
  record:
  - id: '5432'
    relation: later_version
    status: public
  - id: '5440'
    relation: later_version
    status: public
status: public
title: The complexity of evolution on graphs
type: technical_report
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5422'
abstract:
- lang: eng
  text: Notes from the Third Plenary for the Research Data Alliance in Dublin, Ireland
    on March 26 to 28, 2014 with focus on starting an institutional research data
    repository.
author:
- first_name: Jana
  full_name: Porsche, Jana
  id: 3252EDC2-F248-11E8-B48F-1D18A9856A87
  last_name: Porsche
citation:
  ama: Porsche J. <i>Notes from Research Data Alliance Plenary Meeting in Dublin,
    Ireland</i>. none; 2014.
  apa: Porsche, J. (2014). <i>Notes from Research Data Alliance Plenary Meeting in
    Dublin, Ireland</i>. none.
  chicago: Porsche, Jana. <i>Notes from Research Data Alliance Plenary Meeting in
    Dublin, Ireland</i>. none, 2014.
  ieee: J. Porsche, <i>Notes from Research Data Alliance Plenary Meeting in Dublin,
    Ireland</i>. none, 2014.
  ista: Porsche J. 2014. Notes from Research Data Alliance Plenary Meeting in Dublin,
    Ireland, none,p.
  mla: Porsche, Jana. <i>Notes from Research Data Alliance Plenary Meeting in Dublin,
    Ireland</i>. none, 2014.
  short: J. Porsche, Notes from Research Data Alliance Plenary Meeting in Dublin,
    Ireland, none, 2014.
date_created: 2018-12-12T11:39:14Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2020-07-14T23:04:56Z
ddc:
- '020'
department:
- _id: E-Lib
file:
- access_level: open_access
  checksum: 3954896648ce8afa8f7c4425e71cff08
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:40Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5501'
  file_name: IST-2014-254-v1+1_Dublin_Day_3.pdf
  file_size: 648585
  relation: main_file
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  checksum: 9a0d42b0b832dfe7e4b22fb6816bcbba
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:41Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5502'
  file_name: IST-2014-254-v1+2_Dublin_Day_1.pdf
  file_size: 221339
  relation: main_file
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  checksum: 498b8d629fb1bd17bff1dc43700a93e6
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:42Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5503'
  file_name: IST-2014-254-v1+3_Dublin_Day_2.pdf
  file_size: 187778
  relation: main_file
file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
oa: 1
oa_version: None
publisher: none
pubrep_id: '254'
status: public
title: Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland
type: report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5423'
abstract:
- lang: eng
  text: 'We present a flexible framework for the automated competitive analysis of
    on-line scheduling algorithms for firm- deadline real-time tasks based on multi-objective
    graphs: Given a taskset and an on-line scheduling algorithm specified as a labeled
    transition system, along with some optional safety, liveness, and/or limit-average
    constraints for the adversary, we automatically compute the competitive ratio
    of the algorithm w.r.t. a clairvoyant scheduler. We demonstrate the flexibility
    and power of our approach by comparing the competitive ratio of several on-line
    algorithms, including D(over), that have been proposed in the past, for various
    tasksets. Our experimental results reveal that none of these algorithms is universally
    optimal, in the sense that there are tasksets where other schedulers provide better
    performance. Our framework is hence a very useful design tool for selecting optimal
    algorithms for a given application. '
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Alexander
  full_name: Kössler, Alexander
  last_name: Kössler
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
- first_name: Ulrich
  full_name: Schmid, Ulrich
  last_name: Schmid
citation:
  ama: Chatterjee K, Kössler A, Pavlogiannis A, Schmid U. <i>A Framework for Automated
    Competitive Analysis of On-Line Scheduling of Firm-Deadline Tasks</i>. IST Austria;
    2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-300-v1-1">10.15479/AT:IST-2014-300-v1-1</a>
  apa: Chatterjee, K., Kössler, A., Pavlogiannis, A., &#38; Schmid, U. (2014). <i>A
    framework for automated competitive analysis of on-line scheduling of firm-deadline
    tasks</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-300-v1-1">https://doi.org/10.15479/AT:IST-2014-300-v1-1</a>
  chicago: Chatterjee, Krishnendu, Alexander Kössler, Andreas Pavlogiannis, and Ulrich
    Schmid. <i>A Framework for Automated Competitive Analysis of On-Line Scheduling
    of Firm-Deadline Tasks</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-300-v1-1">https://doi.org/10.15479/AT:IST-2014-300-v1-1</a>.
  ieee: K. Chatterjee, A. Kössler, A. Pavlogiannis, and U. Schmid, <i>A framework
    for automated competitive analysis of on-line scheduling of firm-deadline tasks</i>.
    IST Austria, 2014.
  ista: Chatterjee K, Kössler A, Pavlogiannis A, Schmid U. 2014. A framework for automated
    competitive analysis of on-line scheduling of firm-deadline tasks, IST Austria,
    14p.
  mla: Chatterjee, Krishnendu, et al. <i>A Framework for Automated Competitive Analysis
    of On-Line Scheduling of Firm-Deadline Tasks</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-300-v1-1">10.15479/AT:IST-2014-300-v1-1</a>.
  short: K. Chatterjee, A. Kössler, A. Pavlogiannis, U. Schmid, A Framework for Automated
    Competitive Analysis of On-Line Scheduling of Firm-Deadline Tasks, IST Austria,
    2014.
date_created: 2018-12-12T11:39:15Z
date_published: 2014-07-29T00:00:00Z
date_updated: 2025-09-29T13:15:35Z
day: '29'
ddc:
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-300-v1-1
file:
- access_level: open_access
  checksum: 4b8fde4d9ef6653837f6803921d83032
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:53Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5514'
  file_name: IST-2014-300-v1+1_main.pdf
  file_size: 1270021
  relation: main_file
file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '14'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '300'
related_material:
  record:
  - id: '1714'
    relation: later_version
    status: public
status: public
title: A framework for automated competitive analysis of on-line scheduling of firm-deadline
  tasks
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5424'
abstract:
- lang: eng
  text: We consider partially observable Markov decision processes (POMDPs), that
    are a standard framework for robotics applications to model uncertainties present
    in the real world, with temporal logic specifications. All temporal logic specifications
    in linear-time temporal logic (LTL) can be expressed as parity objectives. We
    study the qualitative analysis problem for POMDPs with parity objectives that
    asks whether there is a controller (policy) to ensure that the objective holds
    with probability 1 (almost-surely). While the qualitative analysis of POMDPs with
    parity objectives is undecidable, recent results show that when restricted to
    finite-memory policies the problem is EXPTIME-complete. While the problem is intractable
    in theory, we present a practical approach to solve the qualitative analysis problem.
    We designed several heuristics to deal with the exponential complexity, and have
    used our implementation on a number of well-known POMDP examples for robotics
    applications. Our results provide the first practical approach to solve the qualitative
    analysis of robot motion planning with LTL properties in the presence of uncertainty.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Martin
  full_name: Chmelik, Martin
  id: 3624234E-F248-11E8-B48F-1D18A9856A87
  last_name: Chmelik
- first_name: Raghav
  full_name: Gupta, Raghav
  last_name: Gupta
- first_name: Ayush
  full_name: Kanodia, Ayush
  last_name: Kanodia
citation:
  ama: Chatterjee K, Chmelik M, Gupta R, Kanodia A. <i>Qualitative Analysis of POMDPs
    with Temporal Logic Specifications for Robotics Applications</i>. IST Austria;
    2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-305-v1-1">10.15479/AT:IST-2014-305-v1-1</a>
  apa: Chatterjee, K., Chmelik, M., Gupta, R., &#38; Kanodia, A. (2014). <i>Qualitative
    analysis of POMDPs with temporal logic specifications for robotics applications</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-305-v1-1">https://doi.org/10.15479/AT:IST-2014-305-v1-1</a>
  chicago: Chatterjee, Krishnendu, Martin Chmelik, Raghav Gupta, and Ayush Kanodia.
    <i>Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics
    Applications</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-305-v1-1">https://doi.org/10.15479/AT:IST-2014-305-v1-1</a>.
  ieee: K. Chatterjee, M. Chmelik, R. Gupta, and A. Kanodia, <i>Qualitative analysis
    of POMDPs with temporal logic specifications for robotics applications</i>. IST
    Austria, 2014.
  ista: Chatterjee K, Chmelik M, Gupta R, Kanodia A. 2014. Qualitative analysis of
    POMDPs with temporal logic specifications for robotics applications, IST Austria,
    12p.
  mla: Chatterjee, Krishnendu, et al. <i>Qualitative Analysis of POMDPs with Temporal
    Logic Specifications for Robotics Applications</i>. IST Austria, 2014, doi:<a
    href="https://doi.org/10.15479/AT:IST-2014-305-v1-1">10.15479/AT:IST-2014-305-v1-1</a>.
  short: K. Chatterjee, M. Chmelik, R. Gupta, A. Kanodia, Qualitative Analysis of
    POMDPs with Temporal Logic Specifications for Robotics Applications, IST Austria,
    2014.
date_created: 2018-12-12T11:39:15Z
date_published: 2014-09-09T00:00:00Z
date_updated: 2025-04-15T07:55:41Z
day: '09'
ddc:
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-305-v1-1
file:
- access_level: open_access
  checksum: 35009d5fad01198341e6c1a3353481b7
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:51Z
  date_updated: 2020-07-14T12:46:51Z
  file_id: '5512'
  file_name: IST-2014-305-v1+1_main.pdf
  file_size: 655774
  relation: main_file
file_date_updated: 2020-07-14T12:46:51Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '12'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '305'
related_material:
  record:
  - id: '5426'
    relation: later_version
    status: public
  - id: '1732'
    relation: later_version
    status: public
status: public
title: Qualitative analysis of POMDPs with temporal logic specifications for robotics
  applications
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5426'
abstract:
- lang: eng
  text: We consider partially observable Markov decision processes (POMDPs), that
    are a standard framework for robotics applications to model uncertainties present
    in the real world, with temporal logic specifications. All temporal logic specifications
    in linear-time temporal logic (LTL) can be expressed as parity objectives. We
    study the qualitative analysis problem for POMDPs with parity objectives that
    asks whether there is a controller (policy) to ensure that the objective holds
    with probability 1 (almost-surely). While the qualitative analysis of POMDPs with
    parity objectives is undecidable, recent results show that when restricted to
    finite-memory policies the problem is EXPTIME-complete. While the problem is intractable
    in theory, we present a practical approach to solve the qualitative analysis problem.
    We designed several heuristics to deal with the exponential complexity, and have
    used our implementation on a number of well-known POMDP examples for robotics
    applications. Our results provide the first practical approach to solve the qualitative
    analysis of robot motion planning with LTL properties in the presence of uncertainty.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Martin
  full_name: Chmelik, Martin
  id: 3624234E-F248-11E8-B48F-1D18A9856A87
  last_name: Chmelik
- first_name: Raghav
  full_name: Gupta, Raghav
  last_name: Gupta
- first_name: Ayush
  full_name: Kanodia, Ayush
  last_name: Kanodia
citation:
  ama: Chatterjee K, Chmelik M, Gupta R, Kanodia A. <i>Qualitative Analysis of POMDPs
    with Temporal Logic Specifications for Robotics Applications</i>. IST Austria;
    2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-305-v2-1">10.15479/AT:IST-2014-305-v2-1</a>
  apa: Chatterjee, K., Chmelik, M., Gupta, R., &#38; Kanodia, A. (2014). <i>Qualitative
    analysis of POMDPs with temporal logic specifications for robotics applications</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-305-v2-1">https://doi.org/10.15479/AT:IST-2014-305-v2-1</a>
  chicago: Chatterjee, Krishnendu, Martin Chmelik, Raghav Gupta, and Ayush Kanodia.
    <i>Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics
    Applications</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-305-v2-1">https://doi.org/10.15479/AT:IST-2014-305-v2-1</a>.
  ieee: K. Chatterjee, M. Chmelik, R. Gupta, and A. Kanodia, <i>Qualitative analysis
    of POMDPs with temporal logic specifications for robotics applications</i>. IST
    Austria, 2014.
  ista: Chatterjee K, Chmelik M, Gupta R, Kanodia A. 2014. Qualitative analysis of
    POMDPs with temporal logic specifications for robotics applications, IST Austria,
    10p.
  mla: Chatterjee, Krishnendu, et al. <i>Qualitative Analysis of POMDPs with Temporal
    Logic Specifications for Robotics Applications</i>. IST Austria, 2014, doi:<a
    href="https://doi.org/10.15479/AT:IST-2014-305-v2-1">10.15479/AT:IST-2014-305-v2-1</a>.
  short: K. Chatterjee, M. Chmelik, R. Gupta, A. Kanodia, Qualitative Analysis of
    POMDPs with Temporal Logic Specifications for Robotics Applications, IST Austria,
    2014.
date_created: 2018-12-12T11:39:16Z
date_published: 2014-09-29T00:00:00Z
date_updated: 2025-04-15T07:55:41Z
day: '29'
ddc:
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-305-v2-1
file:
- access_level: open_access
  checksum: 730c0a8e97cf2712a884b2cc423f3919
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:15Z
  date_updated: 2020-07-14T12:46:51Z
  file_id: '5537'
  file_name: IST-2014-305-v2+1_main2.pdf
  file_size: 656019
  relation: main_file
file_date_updated: 2020-07-14T12:46:51Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '10'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '311'
related_material:
  record:
  - id: '5424'
    relation: earlier_version
    status: public
  - id: '1732'
    relation: later_version
    status: public
status: public
title: Qualitative analysis of POMDPs with temporal logic specifications for robotics
  applications
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5427'
abstract:
- lang: eng
  text: 'We consider graphs with n nodes together with their tree-decomposition that
    has b = O ( n ) bags and width t , on the standard RAM computational model with
    wordsize W = Θ (log n ) . Our contributions are two-fold: Our first contribution
    is an algorithm that given a graph and its tree-decomposition as input, computes
    a binary and balanced tree-decomposition of width at most 4 · t + 3 of the graph
    in O ( b ) time and space, improving a long-standing (from 1992) bound of O (
    n · log n ) time for constant treewidth graphs. Our second contribution is on
    reachability queries for low treewidth graphs. We build on our tree-balancing
    algorithm and present a data-structure for graph reachability that requires O
    ( n · t 2 ) preprocessing time, O ( n · t ) space, and O ( d t/ log n e ) time
    for pair queries, and O ( n · t · log t/ log n ) time for single-source queries.
    For constant t our data-structure uses O ( n ) time for preprocessing, O (1) time
    for pair queries, and O ( n/ log n ) time for single-source queries. This is (asymptotically)
    optimal and is faster than DFS/BFS when answering more than a constant number
    of single-source queries.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
citation:
  ama: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. <i>Optimal Tree-Decomposition
    Balancing and Reachability on Low Treewidth Graphs</i>. IST Austria; 2014. doi:<a
    href="https://doi.org/10.15479/AT:IST-2014-314-v1-1">10.15479/AT:IST-2014-314-v1-1</a>
  apa: Chatterjee, K., Ibsen-Jensen, R., &#38; Pavlogiannis, A. (2014). <i>Optimal
    tree-decomposition balancing and reachability on low treewidth graphs</i>. IST
    Austria. <a href="https://doi.org/10.15479/AT:IST-2014-314-v1-1">https://doi.org/10.15479/AT:IST-2014-314-v1-1</a>
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis.
    <i>Optimal Tree-Decomposition Balancing and Reachability on Low Treewidth Graphs</i>.
    IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-314-v1-1">https://doi.org/10.15479/AT:IST-2014-314-v1-1</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, <i>Optimal tree-decomposition
    balancing and reachability on low treewidth graphs</i>. IST Austria, 2014.
  ista: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2014. Optimal tree-decomposition
    balancing and reachability on low treewidth graphs, IST Austria, 24p.
  mla: Chatterjee, Krishnendu, et al. <i>Optimal Tree-Decomposition Balancing and
    Reachability on Low Treewidth Graphs</i>. IST Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-314-v1-1">10.15479/AT:IST-2014-314-v1-1</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, Optimal Tree-Decomposition
    Balancing and Reachability on Low Treewidth Graphs, IST Austria, 2014.
date_created: 2018-12-12T11:39:16Z
date_published: 2014-11-05T00:00:00Z
date_updated: 2021-01-12T08:02:09Z
day: '05'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-314-v1-1
file:
- access_level: open_access
  checksum: 9d3b90bf4fff74664f182f2d95ef727a
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:10Z
  date_updated: 2020-07-14T12:46:52Z
  file_id: '5471'
  file_name: IST-2014-314-v1+1_long.pdf
  file_size: 405561
  relation: main_file
file_date_updated: 2020-07-14T12:46:52Z
has_accepted_license: '1'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: '24'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '314'
status: public
title: Optimal tree-decomposition balancing and reachability on low treewidth graphs
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5428'
abstract:
- lang: eng
  text: "Simulation is an attractive alternative for language inclusion for automata
    as it is an under-approximation of language inclusion, but usually has much lower
    complexity. For non-deterministic automata, while language inclusion is PSPACE-complete,
    simulation can be computed in polynomial time. Simulation has also been extended
    in two orthogonal directions, namely, (1) fair simulation, for simulation over
    specified set of infinite runs; and (2) quantitative simulation, for simulation
    between weighted automata. Again, while fair trace inclusion is PSPACE-complete,
    fair simulation can be computed in polynomial time. For weighted automata, the
    (quantitative) language inclusion problem is undecidable for mean-payoff automata
    and the decidability is open for discounted-sum automata, whereas the (quantitative)
    simulation reduce to mean-payoff games and discounted-sum games, which admit pseudo-polynomial
    time algorithms.\r\n\r\nIn this work, we study (quantitative) simulation for weighted
    automata with Büchi acceptance conditions, i.e., we generalize fair simulation
    from non-weighted automata to weighted automata. We show that imposing Büchi acceptance
    conditions on weighted automata changes many fundamental properties of the simulation
    games. For example, whereas for mean-payoff and discounted-sum games, the players
    do not need memory to play optimally; we show in contrast that for simulation
    games with Büchi acceptance conditions, (i) for mean-payoff objectives, optimal
    strategies for both players require infinite memory in general, and (ii) for discounted-sum
    objectives, optimal strategies need not exist for both players. While the simulation
    games with Büchi acceptance conditions are more complicated (e.g., due to infinite-memory
    requirements for mean-payoff objectives) as compared to their counterpart without
    Büchi acceptance conditions, we still present pseudo-polynomial time algorithms
    to solve simulation games with Büchi acceptance conditions for both weighted mean-payoff
    and weighted discounted-sum automata."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Jan
  full_name: Otop, Jan
  id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
  last_name: Otop
- first_name: Yaron
  full_name: Velner, Yaron
  last_name: Velner
citation:
  ama: Chatterjee K, Henzinger TA, Otop J, Velner Y. <i>Quantitative Fair Simulation
    Games</i>. IST Austria; 2014. doi:<a href="https://doi.org/10.15479/AT:IST-2014-315-v1-1">10.15479/AT:IST-2014-315-v1-1</a>
  apa: Chatterjee, K., Henzinger, T. A., Otop, J., &#38; Velner, Y. (2014). <i>Quantitative
    fair simulation games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2014-315-v1-1">https://doi.org/10.15479/AT:IST-2014-315-v1-1</a>
  chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Jan Otop, and Yaron Velner.
    <i>Quantitative Fair Simulation Games</i>. IST Austria, 2014. <a href="https://doi.org/10.15479/AT:IST-2014-315-v1-1">https://doi.org/10.15479/AT:IST-2014-315-v1-1</a>.
  ieee: K. Chatterjee, T. A. Henzinger, J. Otop, and Y. Velner, <i>Quantitative fair
    simulation games</i>. IST Austria, 2014.
  ista: Chatterjee K, Henzinger TA, Otop J, Velner Y. 2014. Quantitative fair simulation
    games, IST Austria, 26p.
  mla: Chatterjee, Krishnendu, et al. <i>Quantitative Fair Simulation Games</i>. IST
    Austria, 2014, doi:<a href="https://doi.org/10.15479/AT:IST-2014-315-v1-1">10.15479/AT:IST-2014-315-v1-1</a>.
  short: K. Chatterjee, T.A. Henzinger, J. Otop, Y. Velner, Quantitative Fair Simulation
    Games, IST Austria, 2014.
date_created: 2018-12-12T11:39:16Z
date_published: 2014-12-05T00:00:00Z
date_updated: 2025-06-25T11:18:09Z
day: '05'
ddc:
- '004'
department:
- _id: ToHe
- _id: KrCh
doi: 10.15479/AT:IST-2014-315-v1-1
file:
- access_level: open_access
  checksum: b1d573bc04365625ff9974880c0aa807
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:59Z
  date_updated: 2020-07-14T12:46:52Z
  file_id: '5521'
  file_name: IST-2014-315-v1+1_report.pdf
  file_size: 531046
  relation: main_file
file_date_updated: 2020-07-14T12:46:52Z
has_accepted_license: '1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: '26'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '315'
related_material:
  record:
  - id: '1066'
    relation: later_version
    status: public
status: public
title: Quantitative fair simulation games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '6853'
abstract:
- lang: eng
  text: This monograph presents a short course in computational geometry and topology.
    In the first part the book covers Voronoi diagrams and Delaunay triangulations,
    then it presents the theory of alpha complexes which play a crucial role in biology.
    The central part of the book is the homology theory and their computation, including
    the theory of persistence which is indispensable for applications, e.g. shape
    reconstruction. The target audience comprises researchers and practitioners in
    mathematics, biology, neuroscience and computer science, but the book may also
    be beneficial to graduate students of these fields.
alternative_title:
- SpringerBriefs in Applied Sciences and Technology
article_processing_charge: No
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
citation:
  ama: 'Edelsbrunner H. <i>A Short Course in Computational Geometry and Topology</i>.
    1st ed. Cham: Springer Nature; 2014. doi:<a href="https://doi.org/10.1007/978-3-319-05957-0">10.1007/978-3-319-05957-0</a>'
  apa: 'Edelsbrunner, H. (2014). <i>A Short Course in Computational Geometry and Topology</i>
    (1st ed.). Cham: Springer Nature. <a href="https://doi.org/10.1007/978-3-319-05957-0">https://doi.org/10.1007/978-3-319-05957-0</a>'
  chicago: 'Edelsbrunner, Herbert. <i>A Short Course in Computational Geometry and
    Topology</i>. 1st ed. SpringerBriefs in Applied Sciences and Technology. Cham:
    Springer Nature, 2014. <a href="https://doi.org/10.1007/978-3-319-05957-0">https://doi.org/10.1007/978-3-319-05957-0</a>.'
  ieee: 'H. Edelsbrunner, <i>A Short Course in Computational Geometry and Topology</i>,
    1st ed. Cham: Springer Nature, 2014.'
  ista: 'Edelsbrunner H. 2014. A Short Course in Computational Geometry and Topology
    1st ed., Cham: Springer Nature, IX, 110p.'
  mla: Edelsbrunner, Herbert. <i>A Short Course in Computational Geometry and Topology</i>.
    1st ed., Springer Nature, 2014, doi:<a href="https://doi.org/10.1007/978-3-319-05957-0">10.1007/978-3-319-05957-0</a>.
  short: H. Edelsbrunner, A Short Course in Computational Geometry and Topology, 1st
    ed., Springer Nature, Cham, 2014.
date_created: 2019-09-06T09:22:33Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2022-03-04T07:47:54Z
day: '01'
department:
- _id: HeEd
doi: 10.1007/978-3-319-05957-0
edition: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: IX, 110
place: Cham
publication_identifier:
  eisbn:
  - 9-783-3190-5957-0
  eissn:
  - 2191-5318
  isbn:
  - 9-783-3190-5956-3
  issn:
  - 2191-530X
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - description: available as eBook via catalog IST BookList
    relation: other
    url: https://koha.app.ist.ac.at/cgi-bin/koha/opac-detail.pl?biblionumber=356106
  - description: available via catalog IST BookList
    relation: other
    url: https://koha.app.ist.ac.at/cgi-bin/koha/opac-detail.pl?biblionumber=373842
scopus_import: '1'
series_title: SpringerBriefs in Applied Sciences and Technology
status: public
title: A Short Course in Computational Geometry and Topology
type: book
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '7038'
article_processing_charge: No
author:
- first_name: Kristóf
  full_name: Huszár, Kristóf
  id: 33C26278-F248-11E8-B48F-1D18A9856A87
  last_name: Huszár
  orcid: 0000-0002-5445-5057
- first_name: Michal
  full_name: Rolinek, Michal
  id: 3CB3BC06-F248-11E8-B48F-1D18A9856A87
  last_name: Rolinek
citation:
  ama: Huszár K, Rolinek M. <i>Playful Math - An Introduction to Mathematical Games</i>.
    IST Austria
  apa: Huszár, K., &#38; Rolinek, M. (n.d.). <i>Playful Math - An introduction to
    mathematical games</i>. IST Austria.
  chicago: Huszár, Kristóf, and Michal Rolinek. <i>Playful Math - An Introduction
    to Mathematical Games</i>. IST Austria, n.d.
  ieee: K. Huszár and M. Rolinek, <i>Playful Math - An introduction to mathematical
    games</i>. IST Austria.
  ista: Huszár K, Rolinek M. Playful Math - An introduction to mathematical games,
    IST Austria, 5p.
  mla: Huszár, Kristóf, and Michal Rolinek. <i>Playful Math - An Introduction to Mathematical
    Games</i>. IST Austria.
  short: K. Huszár, M. Rolinek, Playful Math - An Introduction to Mathematical Games,
    IST Austria, n.d.
corr_author: '1'
date_created: 2019-11-18T15:57:05Z
date_published: 2014-06-30T00:00:00Z
date_updated: 2025-06-26T12:38:53Z
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---
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abstract:
- lang: eng
  text: Detailed description of the experimental prodedures, data analyses and additional
    statistical analyses of the results.
article_processing_charge: No
author:
- first_name: Stephan
  full_name: Wolf, Stephan
  last_name: Wolf
- first_name: Dino
  full_name: Mcmahon, Dino
  last_name: Mcmahon
- first_name: Ka
  full_name: Lim, Ka
  last_name: Lim
- first_name: Christopher
  full_name: Pull, Christopher
  id: 3C7F4840-F248-11E8-B48F-1D18A9856A87
  last_name: Pull
  orcid: 0000-0003-1122-3982
- first_name: Suzanne
  full_name: Clark, Suzanne
  last_name: Clark
- first_name: Robert
  full_name: Paxton, Robert
  last_name: Paxton
- first_name: Juliet
  full_name: Osborne, Juliet
  last_name: Osborne
citation:
  ama: Wolf S, Mcmahon D, Lim K, et al. Supporting information. 2014. doi:<a href="https://doi.org/10.1371/journal.pone.0103989.s003">10.1371/journal.pone.0103989.s003</a>
  apa: Wolf, S., Mcmahon, D., Lim, K., Pull, C., Clark, S., Paxton, R., &#38; Osborne,
    J. (2014). Supporting information. Public Library of Science. <a href="https://doi.org/10.1371/journal.pone.0103989.s003">https://doi.org/10.1371/journal.pone.0103989.s003</a>
  chicago: Wolf, Stephan, Dino Mcmahon, Ka Lim, Christopher Pull, Suzanne Clark, Robert
    Paxton, and Juliet Osborne. “Supporting Information.” Public Library of Science,
    2014. <a href="https://doi.org/10.1371/journal.pone.0103989.s003">https://doi.org/10.1371/journal.pone.0103989.s003</a>.
  ieee: S. Wolf <i>et al.</i>, “Supporting information.” Public Library of Science,
    2014.
  ista: Wolf S, Mcmahon D, Lim K, Pull C, Clark S, Paxton R, Osborne J. 2014. Supporting
    information, Public Library of Science, <a href="https://doi.org/10.1371/journal.pone.0103989.s003">10.1371/journal.pone.0103989.s003</a>.
  mla: Wolf, Stephan, et al. <i>Supporting Information</i>. Public Library of Science,
    2014, doi:<a href="https://doi.org/10.1371/journal.pone.0103989.s003">10.1371/journal.pone.0103989.s003</a>.
  short: S. Wolf, D. Mcmahon, K. Lim, C. Pull, S. Clark, R. Paxton, J. Osborne, (2014).
date_created: 2021-08-11T14:17:53Z
date_updated: 2025-09-29T11:45:40Z
day: '06'
department:
- _id: SyCr
doi: 10.1371/journal.pone.0103989.s003
month: '08'
oa_version: Published Version
publisher: Public Library of Science
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title: Supporting information
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year: '2014'
...
---
_id: '9931'
abstract:
- lang: eng
  text: Gene duplication is important in evolution, because it provides new raw material
    for evolutionary adaptations. Several existing hypotheses about the causes of
    duplicate retention and diversification differ in their emphasis on gene dosage,
    subfunctionalization, and neofunctionalization. Little experimental data exist
    on the relative importance of gene expression changes and changes in coding regions
    for the evolution of duplicate genes. Furthermore, we do not know how strongly
    the environment could affect this importance. To address these questions, we performed
    evolution experiments with the TEM-1 beta lactamase gene in Escherichia coli to
    study the initial stages of duplicate gene evolution in the laboratory. We mimicked
    tandem duplication by inserting two copies of the TEM-1 gene on the same plasmid.
    We then subjected these copies to repeated cycles of mutagenesis and selection
    in various environments that contained antibiotics in different combinations and
    concentrations. Our experiments showed that gene dosage is the most important
    factor in the initial stages of duplicate gene evolution, and overshadows the
    importance of point mutations in the coding region.
acknowledgement: We thank the Functional Genomics Center Zurich for its service in
  generating sequencing data, M. Ackermann and E. Hayden for helpful discussions,
  A. de Visser for comments on earlier versions of this manuscript, and M. Moser for
  help with quantitative PCR. This work was supported by Swiss National Science Foundation
  (grant 315230–129708), as well as through the YeastX project of SystemsX.ch, and
  the University Priority Research Program in Systems Biology at the University of
  Zurich. RD acknowledges support from the Forschungskredit program of the University
  of Zurich. The authors declare no conflict of interest.
article_processing_charge: No
article_type: original
author:
- first_name: Riddhiman
  full_name: Dhar, Riddhiman
  last_name: Dhar
- first_name: Tobias
  full_name: Bergmiller, Tobias
  id: 2C471CFA-F248-11E8-B48F-1D18A9856A87
  last_name: Bergmiller
  orcid: 0000-0001-5396-4346
- first_name: Andreas
  full_name: Wagner, Andreas
  last_name: Wagner
citation:
  ama: Dhar R, Bergmiller T, Wagner A. Increased gene dosage plays a predominant role
    in the initial stages of evolution of duplicate TEM-1 beta lactamase genes. <i>Evolution</i>.
    2014;68(6):1775-1791. doi:<a href="https://doi.org/10.1111/evo.12373">10.1111/evo.12373</a>
  apa: Dhar, R., Bergmiller, T., &#38; Wagner, A. (2014). Increased gene dosage plays
    a predominant role in the initial stages of evolution of duplicate TEM-1 beta
    lactamase genes. <i>Evolution</i>. Wiley. <a href="https://doi.org/10.1111/evo.12373">https://doi.org/10.1111/evo.12373</a>
  chicago: Dhar, Riddhiman, Tobias Bergmiller, and Andreas Wagner. “Increased Gene
    Dosage Plays a Predominant Role in the Initial Stages of Evolution of Duplicate
    TEM-1 Beta Lactamase Genes.” <i>Evolution</i>. Wiley, 2014. <a href="https://doi.org/10.1111/evo.12373">https://doi.org/10.1111/evo.12373</a>.
  ieee: R. Dhar, T. Bergmiller, and A. Wagner, “Increased gene dosage plays a predominant
    role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes,”
    <i>Evolution</i>, vol. 68, no. 6. Wiley, pp. 1775–1791, 2014.
  ista: Dhar R, Bergmiller T, Wagner A. 2014. Increased gene dosage plays a predominant
    role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes.
    Evolution. 68(6), 1775–1791.
  mla: Dhar, Riddhiman, et al. “Increased Gene Dosage Plays a Predominant Role in
    the Initial Stages of Evolution of Duplicate TEM-1 Beta Lactamase Genes.” <i>Evolution</i>,
    vol. 68, no. 6, Wiley, 2014, pp. 1775–91, doi:<a href="https://doi.org/10.1111/evo.12373">10.1111/evo.12373</a>.
  short: R. Dhar, T. Bergmiller, A. Wagner, Evolution 68 (2014) 1775–1791.
date_created: 2021-08-17T09:03:09Z
date_published: 2014-06-03T00:00:00Z
date_updated: 2025-09-29T13:20:48Z
day: '03'
department:
- _id: CaGu
doi: 10.1111/evo.12373
external_id:
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  pmid:
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intvolume: '        68'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa_version: None
page: 1775-1791
pmid: 1
publication: Evolution
publication_identifier:
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  - 1558-5646
  issn:
  - 0014-3820
publication_status: published
publisher: Wiley
quality_controlled: '1'
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scopus_import: '1'
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title: Increased gene dosage plays a predominant role in the initial stages of evolution
  of duplicate TEM-1 beta lactamase genes
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 68
year: '2014'
...
---
_id: '9932'
abstract:
- lang: eng
  text: Gene duplication is important in evolution, because it provides new raw material
    for evolutionary adaptations. Several existing hypotheses about the causes of
    duplicate retention and diversification differ in their emphasis on gene dosage,
    sub-functionalization, and neo-functionalization. Little experimental data exists
    on the relative importance of gene expression changes and changes in coding regions
    for the evolution of duplicate genes. Furthermore, we do not know how strongly
    the environment could affect this importance. To address these questions, we performed
    evolution experiments with the TEM-1 beta lactamase gene in E. coli to study the
    initial stages of duplicate gene evolution in the laboratory. We mimicked tandem
    duplication by inserting two copies of the TEM-1 gene on the same plasmid. We
    then subjected these copies to repeated cycles of mutagenesis and selection in
    various environments that contained antibiotics in different combinations and
    concentrations. Our experiments showed that gene dosage is the most important
    factor in the initial stages of duplicate gene evolution, and overshadows the
    importance of point mutations in the coding region.
article_processing_charge: No
author:
- first_name: Riddhiman
  full_name: Dhar, Riddhiman
  last_name: Dhar
- first_name: Tobias
  full_name: Bergmiller, Tobias
  id: 2C471CFA-F248-11E8-B48F-1D18A9856A87
  last_name: Bergmiller
  orcid: 0000-0001-5396-4346
- first_name: Andreas
  full_name: Wagner, Andreas
  last_name: Wagner
citation:
  ama: 'Dhar R, Bergmiller T, Wagner A. Data from: Increased gene dosage plays a predominant
    role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes.
    2014. doi:<a href="https://doi.org/10.5061/dryad.jc402">10.5061/dryad.jc402</a>'
  apa: 'Dhar, R., Bergmiller, T., &#38; Wagner, A. (2014). Data from: Increased gene
    dosage plays a predominant role in the initial stages of evolution of duplicate
    TEM-1 beta lactamase genes. Dryad. <a href="https://doi.org/10.5061/dryad.jc402">https://doi.org/10.5061/dryad.jc402</a>'
  chicago: 'Dhar, Riddhiman, Tobias Bergmiller, and Andreas Wagner. “Data from: Increased
    Gene Dosage Plays a Predominant Role in the Initial Stages of Evolution of Duplicate
    TEM-1 Beta Lactamase Genes.” Dryad, 2014. <a href="https://doi.org/10.5061/dryad.jc402">https://doi.org/10.5061/dryad.jc402</a>.'
  ieee: 'R. Dhar, T. Bergmiller, and A. Wagner, “Data from: Increased gene dosage
    plays a predominant role in the initial stages of evolution of duplicate TEM-1
    beta lactamase genes.” Dryad, 2014.'
  ista: 'Dhar R, Bergmiller T, Wagner A. 2014. Data from: Increased gene dosage plays
    a predominant role in the initial stages of evolution of duplicate TEM-1 beta
    lactamase genes, Dryad, <a href="https://doi.org/10.5061/dryad.jc402">10.5061/dryad.jc402</a>.'
  mla: 'Dhar, Riddhiman, et al. <i>Data from: Increased Gene Dosage Plays a Predominant
    Role in the Initial Stages of Evolution of Duplicate TEM-1 Beta Lactamase Genes</i>.
    Dryad, 2014, doi:<a href="https://doi.org/10.5061/dryad.jc402">10.5061/dryad.jc402</a>.'
  short: R. Dhar, T. Bergmiller, A. Wagner, (2014).
date_created: 2021-08-17T09:11:40Z
date_published: 2014-01-27T00:00:00Z
date_updated: 2025-09-29T13:20:47Z
day: '27'
department:
- _id: CaGu
doi: 10.5061/dryad.jc402
main_file_link:
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  url: https://doi.org/10.5061/dryad.jc402
month: '01'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
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title: 'Data from: Increased gene dosage plays a predominant role in the initial stages
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type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
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...
