---
_id: '5412'
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-v1-1">10.15479/AT:IST-2014-153-v1-1</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-v1-1">https://doi.org/10.15479/AT:IST-2014-153-v1-1</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-v1-1">https://doi.org/10.15479/AT:IST-2014-153-v1-1</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, 31p.
  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-v1-1">10.15479/AT:IST-2014-153-v1-1</a>.
  short: K. Chatterjee, P. Daca, M. Chmelik, CEGAR for Qualitative Analysis of Probabilistic
    Systems, IST Austria, 2014.
date_created: 2018-12-12T11:39:11Z
date_published: 2014-01-29T00:00:00Z
date_updated: 2023-02-23T12:25:18Z
day: '29'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-153-v1-1
file:
- access_level: open_access
  checksum: 4d6cda4bebed970926403ad6ad8c745f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:39Z
  date_updated: 2020-07-14T12:46:47Z
  file_id: '5500'
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file_date_updated: 2020-07-14T12:46:47Z
has_accepted_license: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: '31'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '153'
related_material:
  record:
  - id: '2063'
    relation: later_version
    status: public
  - id: '5413'
    relation: later_version
    status: public
  - id: '5414'
    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: '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: 2023-02-23T12:25:18Z
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: '2063'
    relation: later_version
    status: public
  - id: '5412'
    relation: earlier_version
    status: public
  - id: '5414'
    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: 2023-02-23T12:25:15Z
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: '2063'
    relation: later_version
    status: public
  - id: '5412'
    relation: earlier_version
    status: public
  - id: '5413'
    relation: earlier_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: 2023-02-23T12:26:19Z
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: '1656'
    relation: later_version
    status: public
  - id: '467'
    relation: later_version
    status: public
  - id: '5436'
    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: 2023-02-23T10:33:21Z
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: 2023-02-23T10:38:10Z
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: 2023-02-23T10:30:58Z
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:
- access_level: open_access
  checksum: 42f3d8b563286eb0d903832bd9a848d3
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:16Z
  date_updated: 2020-07-14T12:46:50Z
  file_id: '5538'
  file_name: IST-2014-190-v2+2_main_full.pdf
  file_size: 443529
  relation: main_file
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  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: '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: 2023-02-23T10:11:15Z
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: 2023-02-23T12:25:52Z
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: '1732'
    relation: later_version
    status: public
  - id: '5426'
    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: 2023-02-23T12:25:47Z
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: '1732'
    relation: later_version
    status: public
  - id: '5424'
    relation: earlier_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: 2023-09-20T12:07:48Z
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: '6178'
abstract:
- lang: eng
  text: Mechanically coupled cells can generate forces driving cell and tissue morphogenesis
    during development. Visualization and measuring of these forces is of major importance
    to better understand the complexity of the biomechanic processes that shape cells
    and tissues. Here, we describe how UV laser ablation can be utilized to quantitatively
    assess mechanical tension in different tissues of the developing zebrafish and
    in cultures of primary germ layer progenitor cells ex vivo.
article_processing_charge: No
author:
- first_name: Michael
  full_name: Smutny, Michael
  id: 3FE6E4E8-F248-11E8-B48F-1D18A9856A87
  last_name: Smutny
  orcid: 0000-0002-5920-9090
- first_name: Martin
  full_name: Behrndt, Martin
  id: 3ECECA3A-F248-11E8-B48F-1D18A9856A87
  last_name: Behrndt
- first_name: Pedro
  full_name: Campinho, Pedro
  id: 3AFBBC42-F248-11E8-B48F-1D18A9856A87
  last_name: Campinho
  orcid: 0000-0002-8526-5416
- first_name: Verena
  full_name: Ruprecht, Verena
  id: 4D71A03A-F248-11E8-B48F-1D18A9856A87
  last_name: Ruprecht
  orcid: 0000-0003-4088-8633
- first_name: Carl-Philipp J
  full_name: Heisenberg, Carl-Philipp J
  id: 39427864-F248-11E8-B48F-1D18A9856A87
  last_name: Heisenberg
  orcid: 0000-0002-0912-4566
citation:
  ama: 'Smutny M, Behrndt M, Campinho P, Ruprecht V, Heisenberg C-PJ. UV laser ablation
    to measure cell and tissue-generated forces in the zebrafish embryo in vivo and
    ex vivo. In: Nelson C, ed. <i>Tissue Morphogenesis</i>. Vol 1189. Methods in Molecular
    Biology. New York, NY: Springer; 2014:219-235. doi:<a href="https://doi.org/10.1007/978-1-4939-1164-6_15">10.1007/978-1-4939-1164-6_15</a>'
  apa: 'Smutny, M., Behrndt, M., Campinho, P., Ruprecht, V., &#38; Heisenberg, C.-P.
    J. (2014). UV laser ablation to measure cell and tissue-generated forces in the
    zebrafish embryo in vivo and ex vivo. In C. Nelson (Ed.), <i>Tissue Morphogenesis</i>
    (Vol. 1189, pp. 219–235). New York, NY: Springer. <a href="https://doi.org/10.1007/978-1-4939-1164-6_15">https://doi.org/10.1007/978-1-4939-1164-6_15</a>'
  chicago: 'Smutny, Michael, Martin Behrndt, Pedro Campinho, Verena Ruprecht, and
    Carl-Philipp J Heisenberg. “UV Laser Ablation to Measure Cell and Tissue-Generated
    Forces in the Zebrafish Embryo in Vivo and Ex Vivo.” In <i>Tissue Morphogenesis</i>,
    edited by Celeste Nelson, 1189:219–35. Methods in Molecular Biology. New York,
    NY: Springer, 2014. <a href="https://doi.org/10.1007/978-1-4939-1164-6_15">https://doi.org/10.1007/978-1-4939-1164-6_15</a>.'
  ieee: 'M. Smutny, M. Behrndt, P. Campinho, V. Ruprecht, and C.-P. J. Heisenberg,
    “UV laser ablation to measure cell and tissue-generated forces in the zebrafish
    embryo in vivo and ex vivo,” in <i>Tissue Morphogenesis</i>, vol. 1189, C. Nelson,
    Ed. New York, NY: Springer, 2014, pp. 219–235.'
  ista: 'Smutny M, Behrndt M, Campinho P, Ruprecht V, Heisenberg C-PJ. 2014.UV laser
    ablation to measure cell and tissue-generated forces in the zebrafish embryo in
    vivo and ex vivo. In: Tissue Morphogenesis. vol. 1189, 219–235.'
  mla: Smutny, Michael, et al. “UV Laser Ablation to Measure Cell and Tissue-Generated
    Forces in the Zebrafish Embryo in Vivo and Ex Vivo.” <i>Tissue Morphogenesis</i>,
    edited by Celeste Nelson, vol. 1189, Springer, 2014, pp. 219–35, doi:<a href="https://doi.org/10.1007/978-1-4939-1164-6_15">10.1007/978-1-4939-1164-6_15</a>.
  short: M. Smutny, M. Behrndt, P. Campinho, V. Ruprecht, C.-P.J. Heisenberg, in:,
    C. Nelson (Ed.), Tissue Morphogenesis, Springer, New York, NY, 2014, pp. 219–235.
date_created: 2019-03-26T08:55:59Z
date_published: 2014-08-22T00:00:00Z
date_updated: 2023-09-05T14:12:00Z
day: '22'
department:
- _id: CaHe
doi: 10.1007/978-1-4939-1164-6_15
editor:
- first_name: Celeste
  full_name: Nelson, Celeste
  last_name: Nelson
external_id:
  pmid:
  - '25245697'
intvolume: '      1189'
language:
- iso: eng
month: '08'
oa_version: None
page: 219-235
place: New York, NY
pmid: 1
publication: Tissue Morphogenesis
publication_identifier:
  eissn:
  - 1940-6029
  isbn:
  - '9781493911639'
  - '9781493911646'
  issn:
  - 1064-3745
publication_status: published
publisher: Springer
quality_controlled: '1'
series_title: Methods in Molecular Biology
status: public
title: UV laser ablation to measure cell and tissue-generated forces in the zebrafish
  embryo in vivo and ex vivo
type: book_chapter
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 1189
year: '2014'
...
---
_id: '1507'
abstract:
- lang: eng
  text: The Wigner-Dyson-Gaudin-Mehta conjecture asserts that the local eigenvalue
    statistics of large real and complex Hermitian matrices with independent, identically
    distributed entries are universal in a sense that they depend only on the symmetry
    class of the matrix and otherwise are independent of the details of the distribution.
    We present the recent solution to this half-century old conjecture. We explain
    how stochastic tools, such as the Dyson Brownian motion, and PDE ideas, such as
    De Giorgi-Nash-Moser regularity theory, were combined in the solution. We also
    show related results for log-gases that represent a universal model for strongly
    correlated systems. Finally, in the spirit of Wigner’s original vision, we discuss
    the extensions of these universality results to more realistic physical systems
    such as random band matrices.
acknowledgement: The author is partially supported by SFB-TR 12 Grant of the German
  Research Council.
article_processing_charge: No
author:
- first_name: László
  full_name: Erdös, László
  id: 4DBD5372-F248-11E8-B48F-1D18A9856A87
  last_name: Erdös
  orcid: 0000-0001-5366-9603
citation:
  ama: 'Erdös L. Random matrices, log-gases and Hölder regularity. In: <i>Proceedings
    of the International Congress of Mathematicians</i>. Vol 3. International Congress
    of Mathematicians; 2014:214-236.'
  apa: 'Erdös, L. (2014). Random matrices, log-gases and Hölder regularity. In <i>Proceedings
    of the International Congress of Mathematicians</i> (Vol. 3, pp. 214–236). Seoul,
    Korea: International Congress of Mathematicians.'
  chicago: Erdös, László. “Random Matrices, Log-Gases and Hölder Regularity.” In <i>Proceedings
    of the International Congress of Mathematicians</i>, 3:214–36. International Congress
    of Mathematicians, 2014.
  ieee: L. Erdös, “Random matrices, log-gases and Hölder regularity,” in <i>Proceedings
    of the International Congress of Mathematicians</i>, Seoul, Korea, 2014, vol.
    3, pp. 214–236.
  ista: 'Erdös L. 2014. Random matrices, log-gases and Hölder regularity. Proceedings
    of the International Congress of Mathematicians. ICM: International Congress of
    Mathematicians vol. 3, 214–236.'
  mla: Erdös, László. “Random Matrices, Log-Gases and Hölder Regularity.” <i>Proceedings
    of the International Congress of Mathematicians</i>, vol. 3, International Congress
    of Mathematicians, 2014, pp. 214–36.
  short: L. Erdös, in:, Proceedings of the International Congress of Mathematicians,
    International Congress of Mathematicians, 2014, pp. 214–236.
conference:
  end_date: 2014-08-21
  location: Seoul, Korea
  name: 'ICM: International Congress of Mathematicians'
  start_date: 2014-08-13
date_created: 2018-12-11T11:52:25Z
date_published: 2014-08-01T00:00:00Z
date_updated: 2023-10-17T11:12:55Z
day: '01'
department:
- _id: LaEr
ec_funded: 1
intvolume: '         3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1407.5752
month: '08'
oa: 1
oa_version: Submitted Version
page: 214 - 236
project:
- _id: 258DCDE6-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '338804'
  name: Random matrices, universality and disordered quantum systems
publication: Proceedings of the International Congress of Mathematicians
publication_status: published
publisher: International Congress of Mathematicians
publist_id: '5670'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Random matrices, log-gases and Hölder regularity
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 3
year: '2014'
...
---
_id: '1516'
abstract:
- lang: eng
  text: "We present a rigorous derivation of the BCS gap equation for superfluid fermionic
    gases with point interactions. Our starting point is the BCS energy functional,
    whose minimizer we investigate in the limit when the range of the interaction
    potential goes to zero.\r\n"
article_processing_charge: No
arxiv: 1
author:
- first_name: Gerhard
  full_name: Bräunlich, Gerhard
  last_name: Bräunlich
- first_name: Christian
  full_name: Hainzl, Christian
  last_name: Hainzl
- first_name: Robert
  full_name: Seiringer, Robert
  id: 4AFD0470-F248-11E8-B48F-1D18A9856A87
  last_name: Seiringer
  orcid: 0000-0002-6781-0521
citation:
  ama: 'Bräunlich G, Hainzl C, Seiringer R. On the BCS gap equation for superfluid
    fermionic gases. In: <i>Proceedings of the QMath12 Conference</i>. World Scientific
    Publishing; 2014:127-137. doi:<a href="https://doi.org/10.1142/9789814618144_0007">10.1142/9789814618144_0007</a>'
  apa: 'Bräunlich, G., Hainzl, C., &#38; Seiringer, R. (2014). On the BCS gap equation
    for superfluid fermionic gases. In <i>Proceedings of the QMath12 Conference</i>
    (pp. 127–137). Berlin, Germany: World Scientific Publishing. <a href="https://doi.org/10.1142/9789814618144_0007">https://doi.org/10.1142/9789814618144_0007</a>'
  chicago: Bräunlich, Gerhard, Christian Hainzl, and Robert Seiringer. “On the BCS
    Gap Equation for Superfluid Fermionic Gases.” In <i>Proceedings of the QMath12
    Conference</i>, 127–37. World Scientific Publishing, 2014. <a href="https://doi.org/10.1142/9789814618144_0007">https://doi.org/10.1142/9789814618144_0007</a>.
  ieee: G. Bräunlich, C. Hainzl, and R. Seiringer, “On the BCS gap equation for superfluid
    fermionic gases,” in <i>Proceedings of the QMath12 Conference</i>, Berlin, Germany,
    2014, pp. 127–137.
  ista: 'Bräunlich G, Hainzl C, Seiringer R. 2014. On the BCS gap equation for superfluid
    fermionic gases. Proceedings of the QMath12 Conference. QMath: Mathematical Results
    in Quantum Physics, 127–137.'
  mla: Bräunlich, Gerhard, et al. “On the BCS Gap Equation for Superfluid Fermionic
    Gases.” <i>Proceedings of the QMath12 Conference</i>, World Scientific Publishing,
    2014, pp. 127–37, doi:<a href="https://doi.org/10.1142/9789814618144_0007">10.1142/9789814618144_0007</a>.
  short: G. Bräunlich, C. Hainzl, R. Seiringer, in:, Proceedings of the QMath12 Conference,
    World Scientific Publishing, 2014, pp. 127–137.
conference:
  end_date: 2013-09-13
  location: Berlin, Germany
  name: 'QMath: Mathematical Results in Quantum Physics'
  start_date: 2013-09-10
date_created: 2018-12-11T11:52:28Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T06:51:19Z
day: '01'
department:
- _id: RoSe
doi: 10.1142/9789814618144_0007
external_id:
  arxiv:
  - '1403.2563'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1403.2563
month: '01'
oa: 1
oa_version: Preprint
page: 127 - 137
publication: Proceedings of the QMath12 Conference
publication_status: published
publisher: World Scientific Publishing
publist_id: '5661'
quality_controlled: '1'
status: public
title: On the BCS gap equation for superfluid fermionic gases
type: conference
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '1375'
abstract:
- lang: eng
  text: 'We consider directed graphs where each edge is labeled with an integer weight
    and study the fundamental algorithmic question of computing the value of a cycle
    with minimum mean weight. Our contributions are twofold: (1) First we show that
    the algorithmic question is reducible to the problem of a logarithmic number of
    min-plus matrix multiplications of n×n-matrices, where n is the number of vertices
    of the graph. (2) Second, when the weights are nonnegative, we present the first
    (1+ε)-approximation algorithm for the problem and the running time of our algorithm
    is Õ(nωlog3(nW/ε)/ε),1 where O(nω) is the time required for the classic n×n-matrix
    multiplication and W is the maximum value of the weights. With an additional O(log(nW/ε))
    factor in space a cycle with approximately optimal weight can be computed within
    the same time bound.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
- first_name: Sebastian
  full_name: Krinninger, Sebastian
  last_name: Krinninger
- first_name: Veronika
  full_name: Loitzenbauer, Veronika
  last_name: Loitzenbauer
- first_name: Michael
  full_name: Raskin, Michael
  last_name: Raskin
citation:
  ama: Chatterjee K, Henzinger MH, Krinninger S, Loitzenbauer V, Raskin M. Approximating
    the minimum cycle mean. <i>Theoretical Computer Science</i>. 2014;547(C):104-116.
    doi:<a href="https://doi.org/10.1016/j.tcs.2014.06.031">10.1016/j.tcs.2014.06.031</a>
  apa: Chatterjee, K., Henzinger, M. H., Krinninger, S., Loitzenbauer, V., &#38; Raskin,
    M. (2014). Approximating the minimum cycle mean. <i>Theoretical Computer Science</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.tcs.2014.06.031">https://doi.org/10.1016/j.tcs.2014.06.031</a>
  chicago: Chatterjee, Krishnendu, Monika H Henzinger, Sebastian Krinninger, Veronika
    Loitzenbauer, and Michael Raskin. “Approximating the Minimum Cycle Mean.” <i>Theoretical
    Computer Science</i>. Elsevier, 2014. <a href="https://doi.org/10.1016/j.tcs.2014.06.031">https://doi.org/10.1016/j.tcs.2014.06.031</a>.
  ieee: K. Chatterjee, M. H. Henzinger, S. Krinninger, V. Loitzenbauer, and M. Raskin,
    “Approximating the minimum cycle mean,” <i>Theoretical Computer Science</i>, vol.
    547, no. C. Elsevier, pp. 104–116, 2014.
  ista: Chatterjee K, Henzinger MH, Krinninger S, Loitzenbauer V, Raskin M. 2014.
    Approximating the minimum cycle mean. Theoretical Computer Science. 547(C), 104–116.
  mla: Chatterjee, Krishnendu, et al. “Approximating the Minimum Cycle Mean.” <i>Theoretical
    Computer Science</i>, vol. 547, no. C, Elsevier, 2014, pp. 104–16, doi:<a href="https://doi.org/10.1016/j.tcs.2014.06.031">10.1016/j.tcs.2014.06.031</a>.
  short: K. Chatterjee, M.H. Henzinger, S. Krinninger, V. Loitzenbauer, M. Raskin,
    Theoretical Computer Science 547 (2014) 104–116.
date_created: 2018-12-11T11:51:40Z
date_published: 2014-08-28T00:00:00Z
date_updated: 2022-09-09T11:50:58Z
day: '28'
department:
- _id: KrCh
doi: 10.1016/j.tcs.2014.06.031
ec_funded: 1
external_id:
  arxiv:
  - '1307.4473'
intvolume: '       547'
issue: C
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1307.4473
month: '08'
oa: 1
oa_version: Preprint
page: 104 - 116
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P 23499-N23
  name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11407
  name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
  name: Microsoft Research Faculty Fellowship
publication: Theoretical Computer Science
publication_status: published
publisher: Elsevier
publist_id: '5836'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Approximating the minimum cycle mean
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 547
year: '2014'
...
---
_id: '1392'
abstract:
- lang: eng
  text: Fault-tolerant distributed algorithms play an important role in ensuring the
    reliability of many software applications. In this paper we consider distributed
    algorithms whose computations are organized in rounds. To verify the correctness
    of such algorithms, we reason about (i) properties (such as invariants) of the
    state, (ii) the transitions controlled by the algorithm, and (iii) the communication
    graph. We introduce a logic that addresses these points, and contains set comprehensions
    with cardinality constraints, function symbols to describe the local states of
    each process, and a limited form of quantifier alternation to express the verification
    conditions. We show its use in automating the verification of consensus algorithms.
    In particular, we give a semi-decision procedure for the unsatisfiability problem
    of the logic and identify a decidable fragment. We successfully applied our framework
    to verify the correctness of a variety of consensus algorithms tolerant to both
    benign faults (message loss, process crashes) and value faults (message corruption).
acknowledgement: Supported by the Vienna Science and Technology Fund (WWTF) through
  grant PROSEED.
alternative_title:
- LNCS
author:
- first_name: Cezara
  full_name: Dragoi, Cezara
  id: 2B2B5ED0-F248-11E8-B48F-1D18A9856A87
  last_name: Dragoi
- 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: Helmut
  full_name: Veith, Helmut
  last_name: Veith
- first_name: Josef
  full_name: Widder, Josef
  last_name: Widder
- first_name: Damien
  full_name: Zufferey, Damien
  id: 4397AC76-F248-11E8-B48F-1D18A9856A87
  last_name: Zufferey
  orcid: 0000-0002-3197-8736
citation:
  ama: 'Dragoi C, Henzinger TA, Veith H, Widder J, Zufferey D. A logic-based framework
    for verifying consensus algorithms. In: Vol 8318. Springer; 2014:161-181. doi:<a
    href="https://doi.org/10.1007/978-3-642-54013-4_10">10.1007/978-3-642-54013-4_10</a>'
  apa: 'Dragoi, C., Henzinger, T. A., Veith, H., Widder, J., &#38; Zufferey, D. (2014).
    A logic-based framework for verifying consensus algorithms (Vol. 8318, pp. 161–181).
    Presented at the VMCAI: Verification, Model Checking and Abstract Interpretation,
    San Diego, USA: Springer. <a href="https://doi.org/10.1007/978-3-642-54013-4_10">https://doi.org/10.1007/978-3-642-54013-4_10</a>'
  chicago: Dragoi, Cezara, Thomas A Henzinger, Helmut Veith, Josef Widder, and Damien
    Zufferey. “A Logic-Based Framework for Verifying Consensus Algorithms,” 8318:161–81.
    Springer, 2014. <a href="https://doi.org/10.1007/978-3-642-54013-4_10">https://doi.org/10.1007/978-3-642-54013-4_10</a>.
  ieee: 'C. Dragoi, T. A. Henzinger, H. Veith, J. Widder, and D. Zufferey, “A logic-based
    framework for verifying consensus algorithms,” presented at the VMCAI: Verification,
    Model Checking and Abstract Interpretation, San Diego, USA, 2014, vol. 8318, pp.
    161–181.'
  ista: 'Dragoi C, Henzinger TA, Veith H, Widder J, Zufferey D. 2014. A logic-based
    framework for verifying consensus algorithms. VMCAI: Verification, Model Checking
    and Abstract Interpretation, LNCS, vol. 8318, 161–181.'
  mla: Dragoi, Cezara, et al. <i>A Logic-Based Framework for Verifying Consensus Algorithms</i>.
    Vol. 8318, Springer, 2014, pp. 161–81, doi:<a href="https://doi.org/10.1007/978-3-642-54013-4_10">10.1007/978-3-642-54013-4_10</a>.
  short: C. Dragoi, T.A. Henzinger, H. Veith, J. Widder, D. Zufferey, in:, Springer,
    2014, pp. 161–181.
conference:
  end_date: 2014-01-21
  location: San Diego, USA
  name: 'VMCAI: Verification, Model Checking and Abstract Interpretation'
  start_date: 2014-01-19
date_created: 2018-12-11T11:51:45Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T06:50:22Z
day: '01'
ddc:
- '000'
- '005'
department:
- _id: ToHe
doi: 10.1007/978-3-642-54013-4_10
ec_funded: 1
file:
- access_level: open_access
  checksum: bffa33d39be77df0da39defe97eabf84
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:11:06Z
  date_updated: 2020-07-14T12:44:48Z
  file_id: '4859'
  file_name: IST-2014-179-v1+1_vmcai14.pdf
  file_size: 444138
  relation: main_file
file_date_updated: 2020-07-14T12:44:48Z
has_accepted_license: '1'
intvolume: '      8318'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 161 - 181
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
publication_status: published
publisher: Springer
publist_id: '5817'
pubrep_id: '179'
quality_controlled: '1'
scopus_import: 1
status: public
title: A logic-based framework for verifying consensus algorithms
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8318
year: '2014'
...
