---
_id: '5382'
abstract:
- lang: eng
  text: 'We consider two-player stochastic games played on a finite state space for
    an infinite num- ber of rounds. The games are concurrent: in each round, the two
    players (player 1 and player 2) choose their moves independently and simultaneously;
    the current state and the two moves determine a probability distribution over
    the successor states. We also consider the important special case of turn-based
    stochastic games where players make moves in turns, rather than concurrently.
    We study concurrent games with ω-regular winning conditions specified as parity
    objectives. The value for player 1 for a parity objective is the maximal probability
    with which the player can guarantee the satisfaction of the objective against
    all strategies of the opponent. We study the problem of continuity and robustness
    of the value function in concurrent and turn-based stochastic parity games with
    respect to imprecision in the transition probabilities. We present quantitative
    bounds on the difference of the value function (in terms of the imprecision of
    the transition probabilities) and show the value continuity for structurally equivalent
    concurrent games (two games are structurally equivalent if the support of the
    transition func- tion is same and the probabilities differ). We also show robustness
    of optimal strategies for structurally equivalent turn-based stochastic parity
    games. Finally we show that the value continuity property breaks without the structurally
    equivalent assumption (even for Markov chains) and show that our quantitative
    bound is asymptotically optimal. Hence our results are tight (the assumption is
    both necessary and sufficient) and optimal (our quantitative bound is asymptotically
    optimal).'
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
citation:
  ama: Chatterjee K. <i>Robustness of Structurally Equivalent Concurrent Parity Games</i>.
    IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0006">10.15479/AT:IST-2011-0006</a>
  apa: Chatterjee, K. (2011). <i>Robustness of structurally equivalent concurrent
    parity games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0006">https://doi.org/10.15479/AT:IST-2011-0006</a>
  chicago: Chatterjee, Krishnendu. <i>Robustness of Structurally Equivalent Concurrent
    Parity Games</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0006">https://doi.org/10.15479/AT:IST-2011-0006</a>.
  ieee: K. Chatterjee, <i>Robustness of structurally equivalent concurrent parity
    games</i>. IST Austria, 2011.
  ista: Chatterjee K. 2011. Robustness of structurally equivalent concurrent parity
    games, IST Austria, 18p.
  mla: Chatterjee, Krishnendu. <i>Robustness of Structurally Equivalent Concurrent
    Parity Games</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0006">10.15479/AT:IST-2011-0006</a>.
  short: K. Chatterjee, Robustness of Structurally Equivalent Concurrent Parity Games,
    IST Austria, 2011.
date_created: 2018-12-12T11:39:00Z
date_published: 2011-06-27T00:00:00Z
date_updated: 2023-02-23T11:23:01Z
day: '27'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0006
file:
- access_level: open_access
  checksum: 1322b652d6ab07eb5248298a3f91c1cf
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:24Z
  date_updated: 2020-07-14T12:46:40Z
  file_id: '5546'
  file_name: IST-2011-0006_IST-2011-0006.pdf
  file_size: 335997
  relation: main_file
file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '18'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '18'
related_material:
  record:
  - id: '3341'
    relation: later_version
    status: public
status: public
title: Robustness of structurally equivalent concurrent parity games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5384'
abstract:
- lang: eng
  text: 'We consider probabilistic automata on infinite words with acceptance defined
    by parity conditions. We consider three qualitative decision problems: (i) the
    positive decision problem asks whether there is a word that is accepted with positive
    probability; (ii) the almost decision problem asks whether there is a word that
    is accepted with probability 1; and (iii) the limit decision problem asks whether
    for every ε > 0 there is a word that is accepted with probability at least 1 −
    ε. We unify and generalize several decidability results for probabilistic automata
    over infinite words, and identify a robust (closed under union and intersection)
    subclass of probabilistic automata for which all the qualitative decision problems
    are decidable for parity conditions. We also show that if the input words are
    restricted to lasso shape words, then the positive and almost problems are decidable
    for all probabilistic automata with parity conditions.'
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: Mathieu
  full_name: Tracol, Mathieu
  id: 3F54FA38-F248-11E8-B48F-1D18A9856A87
  last_name: Tracol
citation:
  ama: Chatterjee K, Tracol M. <i>Decidable Problems for Probabilistic Automata on
    Infinite Words</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0004">10.15479/AT:IST-2011-0004</a>
  apa: Chatterjee, K., &#38; Tracol, M. (2011). <i>Decidable problems for probabilistic
    automata on infinite words</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0004">https://doi.org/10.15479/AT:IST-2011-0004</a>
  chicago: Chatterjee, Krishnendu, and Mathieu Tracol. <i>Decidable Problems for Probabilistic
    Automata on Infinite Words</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0004">https://doi.org/10.15479/AT:IST-2011-0004</a>.
  ieee: K. Chatterjee and M. Tracol, <i>Decidable problems for probabilistic automata
    on infinite words</i>. IST Austria, 2011.
  ista: Chatterjee K, Tracol M. 2011. Decidable problems for probabilistic automata
    on infinite words, IST Austria, 30p.
  mla: Chatterjee, Krishnendu, and Mathieu Tracol. <i>Decidable Problems for Probabilistic
    Automata on Infinite Words</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0004">10.15479/AT:IST-2011-0004</a>.
  short: K. Chatterjee, M. Tracol, Decidable Problems for Probabilistic Automata on
    Infinite Words, IST Austria, 2011.
date_created: 2018-12-12T11:39:01Z
date_published: 2011-04-11T00:00:00Z
date_updated: 2023-02-23T11:05:53Z
day: '11'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0004
file:
- access_level: open_access
  checksum: f5a0f664fadc335990f5fcf138df19f1
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:23Z
  date_updated: 2020-07-14T12:46:40Z
  file_id: '5545'
  file_name: IST-2011-004_IST-2011-0004.pdf
  file_size: 570827
  relation: main_file
file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '30'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '20'
related_material:
  record:
  - id: '2957'
    relation: later_version
    status: public
status: public
title: Decidable problems for probabilistic automata on infinite words
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5385'
abstract:
- lang: eng
  text: There is recently a significant effort to add quantitative objectives to formal
    verification and synthesis. We introduce and investigate the extension of temporal
    logics with quantitative atomic assertions, aiming for a general and flexible
    framework for quantitative-oriented specifications. In the heart of quantitative
    objectives lies the accumulation of values along a computation. It is either the
    accumulated summation, as with the energy objectives, or the accumulated average,
    as with the mean-payoff objectives. We investigate the extension of temporal logics
    with the prefix-accumulation assertions Sum(v) ≥ c and Avg(v) ≥ c, where v is
    a numeric variable of the system, c is a constant rational number, and Sum(v)
    and Avg(v) denote the accumulated sum and average of the values of v from the
    beginning of the computation up to the current point of time. We also allow the
    path-accumulation assertions LimInfAvg(v) ≥ c and LimSupAvg(v) ≥ c, referring
    to the average value along an entire computation. We study the border of decidability
    for extensions of various temporal logics. In particular, we show that extending
    the fragment of CTL that has only the EX, EF, AX, and AG temporal modalities by
    prefix-accumulation assertions and extending LTL with path-accumulation assertions,
    result in temporal logics whose model-checking problem is decidable. The extended
    logics allow to significantly extend the currently known energy and mean-payoff
    objectives. Moreover, the prefix-accumulation assertions may be refined with “controlled-accumulation”,
    allowing, for example, to specify constraints on the average waiting time between
    a request and a grant. On the negative side, we show that the fragment we point
    to is, in a sense, the maximal logic whose extension with prefix-accumulation
    assertions permits a decidable model-checking procedure. Extending a temporal
    logic that has the EG or EU modalities, and in particular CTL and LTL, makes the
    problem undecidable.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Udi
  full_name: Boker, Udi
  id: 31E297B6-F248-11E8-B48F-1D18A9856A87
  last_name: Boker
- 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: Orna
  full_name: Kupferman, Orna
  last_name: Kupferman
citation:
  ama: Boker U, Chatterjee K, Henzinger TA, Kupferman O. <i>Temporal Specifications
    with Accumulative Values</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0003">10.15479/AT:IST-2011-0003</a>
  apa: Boker, U., Chatterjee, K., Henzinger, T. A., &#38; Kupferman, O. (2011). <i>Temporal
    specifications with accumulative values</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0003">https://doi.org/10.15479/AT:IST-2011-0003</a>
  chicago: Boker, Udi, Krishnendu Chatterjee, Thomas A Henzinger, and Orna Kupferman.
    <i>Temporal Specifications with Accumulative Values</i>. IST Austria, 2011. <a
    href="https://doi.org/10.15479/AT:IST-2011-0003">https://doi.org/10.15479/AT:IST-2011-0003</a>.
  ieee: U. Boker, K. Chatterjee, T. A. Henzinger, and O. Kupferman, <i>Temporal specifications
    with accumulative values</i>. IST Austria, 2011.
  ista: Boker U, Chatterjee K, Henzinger TA, Kupferman O. 2011. Temporal specifications
    with accumulative values, IST Austria, 14p.
  mla: Boker, Udi, et al. <i>Temporal Specifications with Accumulative Values</i>.
    IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0003">10.15479/AT:IST-2011-0003</a>.
  short: U. Boker, K. Chatterjee, T.A. Henzinger, O. Kupferman, Temporal Specifications
    with Accumulative Values, IST Austria, 2011.
date_created: 2018-12-12T11:39:02Z
date_published: 2011-04-04T00:00:00Z
date_updated: 2023-02-23T11:23:41Z
day: '04'
ddc:
- '000'
- '004'
department:
- _id: ToHe
- _id: KrCh
doi: 10.15479/AT:IST-2011-0003
ec_funded: 1
file:
- access_level: open_access
  checksum: 8491d0d48c4911620ecd5350b413c11e
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:00Z
  date_updated: 2020-07-14T12:46:41Z
  file_id: '5461'
  file_name: IST-2011-0003_IST-2011-0003.pdf
  file_size: 366281
  relation: main_file
file_date_updated: 2020-07-14T12:46:41Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '14'
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '215543'
  name: COMponent-Based Embedded Systems design Techniques
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '214373'
  name: Design for Embedded Systems
- _id: 2587B514-B435-11E9-9278-68D0E5697425
  name: Microsoft Research Faculty Fellowship
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '21'
related_material:
  record:
  - id: '2038'
    relation: later_version
    status: public
  - id: '3356'
    relation: later_version
    status: public
status: public
title: Temporal specifications with accumulative values
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5388'
abstract:
- lang: eng
  text: "We present an algorithmic method for the synthesis of concurrent programs
    that are optimal with respect to quantitative performance measures. The input
    consists of a sequential sketch, that is, a program that does not contain synchronization
    constructs, and of a parametric performance model that assigns costs to actions
    such as locking, context switching, and idling. The quantitative synthesis problem
    is to automatically introduce synchronization constructs into the sequential sketch
    so that both correctness is guaranteed and worst-case (or average-case) performance
    is optimized. Correctness is formalized as race freedom or linearizability.\r\n\r\nWe
    show that for worst-case performance, the problem can be modeled\r\nas a 2-player
    graph game with quantitative (limit-average) objectives, and\r\nfor average-case
    performance, as a 2 1/2 -player graph game (with probabilistic transitions). In
    both cases, the optimal correct program is derived from an optimal strategy in
    the corresponding quantitative game. We prove that the respective game problems
    are computationally expensive (NP-complete), and present several techniques that
    overcome the theoretical difficulty in cases of concurrent programs of practical
    interest.\r\n\r\nWe have implemented a prototype tool and used it for the automatic
    syn- thesis of programs that access a concurrent list. For certain parameter val-
    ues, our method automatically synthesizes various classical synchronization schemes
    for implementing a concurrent list, such as fine-grained locking or a lazy algorithm.
    For other parameter values, a new, hybrid synchronization style is synthesized,
    which uses both the lazy approach and coarse-grained locks (instead of standard
    fine-grained locks). The trade-off occurs because while fine-grained locking tends
    to decrease the cost that is due to waiting for locks, it increases cache size
    requirements."
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: Pavol
  full_name: Cerny, Pavol
  id: 4DCBEFFE-F248-11E8-B48F-1D18A9856A87
  last_name: Cerny
- 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: Arjun
  full_name: Radhakrishna, Arjun
  id: 3B51CAC4-F248-11E8-B48F-1D18A9856A87
  last_name: Radhakrishna
- first_name: Rohit
  full_name: Singh, Rohit
  last_name: Singh
citation:
  ama: Chatterjee K, Cerny P, Henzinger TA, Radhakrishna A, Singh R. <i>Quantitative
    Synthesis for Concurrent Programs</i>. IST Austria; 2010. doi:<a href="https://doi.org/10.15479/AT:IST-2010-0004">10.15479/AT:IST-2010-0004</a>
  apa: Chatterjee, K., Cerny, P., Henzinger, T. A., Radhakrishna, A., &#38; Singh,
    R. (2010). <i>Quantitative synthesis for concurrent programs</i>. IST Austria.
    <a href="https://doi.org/10.15479/AT:IST-2010-0004">https://doi.org/10.15479/AT:IST-2010-0004</a>
  chicago: Chatterjee, Krishnendu, Pavol Cerny, Thomas A Henzinger, Arjun Radhakrishna,
    and Rohit Singh. <i>Quantitative Synthesis for Concurrent Programs</i>. IST Austria,
    2010. <a href="https://doi.org/10.15479/AT:IST-2010-0004">https://doi.org/10.15479/AT:IST-2010-0004</a>.
  ieee: K. Chatterjee, P. Cerny, T. A. Henzinger, A. Radhakrishna, and R. Singh, <i>Quantitative
    synthesis for concurrent programs</i>. IST Austria, 2010.
  ista: Chatterjee K, Cerny P, Henzinger TA, Radhakrishna A, Singh R. 2010. Quantitative
    synthesis for concurrent programs, IST Austria, 17p.
  mla: Chatterjee, Krishnendu, et al. <i>Quantitative Synthesis for Concurrent Programs</i>.
    IST Austria, 2010, doi:<a href="https://doi.org/10.15479/AT:IST-2010-0004">10.15479/AT:IST-2010-0004</a>.
  short: K. Chatterjee, P. Cerny, T.A. Henzinger, A. Radhakrishna, R. Singh, Quantitative
    Synthesis for Concurrent Programs, IST Austria, 2010.
date_created: 2018-12-12T11:39:03Z
date_published: 2010-10-07T00:00:00Z
date_updated: 2023-02-23T11:24:08Z
day: '07'
ddc:
- '000'
- '005'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2010-0004
file:
- access_level: open_access
  checksum: da38782d2388a6fa32109d10bb9bad67
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:53Z
  date_updated: 2020-07-14T12:46:42Z
  file_id: '5515'
  file_name: IST-2010-0004_IST-2010-0004.pdf
  file_size: 429101
  relation: main_file
file_date_updated: 2020-07-14T12:46:42Z
has_accepted_license: '1'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: '17'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '24'
related_material:
  record:
  - id: '3366'
    relation: later_version
    status: public
status: public
title: Quantitative synthesis for concurrent programs
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2010'
...
---
_id: '5390'
abstract:
- lang: eng
  text: The class of ω regular languages provide a robust specification language in
    verification. Every ω-regular condition can be decomposed into a safety part and
    a liveness part. The liveness part ensures that something good happens “eventually.”
    Two main strengths of the classical, infinite-limit formulation of liveness are
    robustness (independence from the granularity of transitions) and simplicity (abstraction
    of complicated time bounds). However, the classical liveness formulation suffers
    from the drawback that the time until something good happens may be unbounded.
    A stronger formulation of liveness, so-called finitary liveness, overcomes this
    drawback, while still retaining robustness and simplicity. Finitary liveness requires
    that there exists an unknown, fixed bound b such that something good happens within
    b transitions. In this work we consider the finitary parity and Streett (fairness)
    conditions. We present the topological, automata-theoretic and logical characterization
    of finitary languages defined by finitary parity and Streett conditions. We (a)
    show that the finitary parity and Streett languages are Σ2-complete; (b) present
    a complete characterization of the expressive power of various classes of automata
    with finitary and infinitary conditions (in particular we show that non-deterministic
    finitary parity and Streett automata cannot be determinized to deterministic finitary
    parity or Streett automata); and (c) show that the languages defined by non-deterministic
    finitary parity automata exactly characterize the star-free fragment of ωB-regular
    languages.
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: Nathanaël
  full_name: Fijalkow, Nathanaël
  last_name: Fijalkow
citation:
  ama: Chatterjee K, Fijalkow N. <i>Topological, Automata-Theoretic and Logical Characterization
    of Finitary Languages</i>. IST Austria; 2010. doi:<a href="https://doi.org/10.15479/AT:IST-2010-0002">10.15479/AT:IST-2010-0002</a>
  apa: Chatterjee, K., &#38; Fijalkow, N. (2010). <i>Topological, automata-theoretic
    and logical characterization of finitary languages</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2010-0002">https://doi.org/10.15479/AT:IST-2010-0002</a>
  chicago: Chatterjee, Krishnendu, and Nathanaël Fijalkow. <i>Topological, Automata-Theoretic
    and Logical Characterization of Finitary Languages</i>. IST Austria, 2010. <a
    href="https://doi.org/10.15479/AT:IST-2010-0002">https://doi.org/10.15479/AT:IST-2010-0002</a>.
  ieee: K. Chatterjee and N. Fijalkow, <i>Topological, automata-theoretic and logical
    characterization of finitary languages</i>. IST Austria, 2010.
  ista: Chatterjee K, Fijalkow N. 2010. Topological, automata-theoretic and logical
    characterization of finitary languages, IST Austria, 21p.
  mla: Chatterjee, Krishnendu, and Nathanaël Fijalkow. <i>Topological, Automata-Theoretic
    and Logical Characterization of Finitary Languages</i>. IST Austria, 2010, doi:<a
    href="https://doi.org/10.15479/AT:IST-2010-0002">10.15479/AT:IST-2010-0002</a>.
  short: K. Chatterjee, N. Fijalkow, Topological, Automata-Theoretic and Logical Characterization
    of Finitary Languages, IST Austria, 2010.
date_created: 2018-12-12T11:39:03Z
date_published: 2010-06-04T00:00:00Z
date_updated: 2020-07-14T23:04:41Z
day: '04'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2010-0002
file:
- access_level: open_access
  checksum: 283d3604d76dd4d5161585d4c8625fbe
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:10Z
  date_updated: 2020-07-14T12:46:43Z
  file_id: '5532'
  file_name: IST-2010-0002_IST-2010-0002.pdf
  file_size: 395662
  relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '21'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '26'
status: public
title: Topological, automata-theoretic and logical characterization of finitary languages
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2010'
...
---
_id: '3851'
abstract:
- lang: eng
  text: 'Energy parity games are infinite two-player turn-based games played on weighted
    graphs. The objective of the game combines a (qualitative) parity condition with
    the (quantitative) requirement that the sum of the weights (i.e., the level of
    energy in the game) must remain positive. Beside their own interest in the design
    and synthesis of resource-constrained omega-regular specifications, energy parity
    games provide one of the simplest model of games with combined qualitative and
    quantitative objective. Our main results are as follows: (a) exponential memory
    is sufficient and may be necessary for winning strategies in energy parity games;
    (b) the problem of deciding the winner in energy parity games can be solved in
    NP ∩ coNP; and (c) we give an algorithm to solve energy parity by reduction to
    energy games. We also show that the problem of deciding the winner in energy parity
    games is polynomially equivalent to the problem of deciding the winner in mean-payoff
    parity games, which can thus be solved in NP ∩ coNP. As a consequence we also
    obtain a conceptually simple algorithm to solve mean-payoff parity games.'
alternative_title:
- LNCS
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: Laurent
  full_name: Doyen, Laurent
  last_name: Doyen
citation:
  ama: 'Chatterjee K, Doyen L. Energy parity games. In: Vol 6199. Springer; 2010:599-610.
    doi:<a href="https://doi.org/10.1007/978-3-642-14162-1_50">10.1007/978-3-642-14162-1_50</a>'
  apa: 'Chatterjee, K., &#38; Doyen, L. (2010). Energy parity games (Vol. 6199, pp.
    599–610). Presented at the  ICALP: Automata, Languages and Programming, 37th International
    Colloquium, Bordeaux, France: Springer. <a href="https://doi.org/10.1007/978-3-642-14162-1_50">https://doi.org/10.1007/978-3-642-14162-1_50</a>'
  chicago: Chatterjee, Krishnendu, and Laurent Doyen. “Energy Parity Games,” 6199:599–610.
    Springer, 2010. <a href="https://doi.org/10.1007/978-3-642-14162-1_50">https://doi.org/10.1007/978-3-642-14162-1_50</a>.
  ieee: 'K. Chatterjee and L. Doyen, “Energy parity games,” presented at the  ICALP:
    Automata, Languages and Programming, 37th International Colloquium, Bordeaux,
    France, 2010, vol. 6199, pp. 599–610.'
  ista: 'Chatterjee K, Doyen L. 2010. Energy parity games.  ICALP: Automata, Languages
    and Programming, 37th International Colloquium, LNCS, vol. 6199, 599–610.'
  mla: Chatterjee, Krishnendu, and Laurent Doyen. <i>Energy Parity Games</i>. Vol.
    6199, Springer, 2010, pp. 599–610, doi:<a href="https://doi.org/10.1007/978-3-642-14162-1_50">10.1007/978-3-642-14162-1_50</a>.
  short: K. Chatterjee, L. Doyen, in:, Springer, 2010, pp. 599–610.
conference:
  end_date: 2010-07-10
  location: Bordeaux, France
  name: ' ICALP: Automata, Languages and Programming, 37th International Colloquium'
  start_date: 2010-07-06
date_created: 2018-12-11T12:05:31Z
date_published: 2010-09-10T00:00:00Z
date_updated: 2023-02-23T11:06:35Z
day: '10'
department:
- _id: KrCh
doi: 10.1007/978-3-642-14162-1_50
external_id:
  arxiv:
  - '1001.5183'
intvolume: '      6199'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1001.5183
month: '09'
oa: 1
oa_version: Preprint
page: 599 - 610
publication_status: published
publisher: Springer
publist_id: '2330'
quality_controlled: '1'
related_material:
  record:
  - id: '2972'
    relation: later_version
    status: public
scopus_import: 1
status: public
title: Energy parity games
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 6199
year: '2010'
...
---
_id: '3852'
abstract:
- lang: eng
  text: 'We introduce two-level discounted games played by two players on a perfect-information
    stochastic game graph. The upper level game is a discounted game and the lower
    level game is an undiscounted reachability game. Two-level games model hierarchical
    and sequential decision making under uncertainty across different time scales.
    We show the existence of pure memoryless optimal strategies for both players and
    an ordered field property for such games. We show that if there is only one player
    (Markov decision processes), then the values can be computed in polynomial time.
    It follows that whether the value of a player is equal to a given rational constant
    in two-level discounted games can be decided in NP intersected coNP. We also give
    an alternate strategy improvement algorithm to compute the value. '
alternative_title:
- EPTCS
article_processing_charge: No
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: Ritankar
  full_name: Majumdar, Ritankar
  last_name: Majumdar
citation:
  ama: 'Chatterjee K, Majumdar R. Discounting in games across time scales. In: Vol
    25. EPTCS; 2010:22-29. doi:<a href="https://doi.org/10.4204/EPTCS.25.6">10.4204/EPTCS.25.6</a>'
  apa: 'Chatterjee, K., &#38; Majumdar, R. (2010). Discounting in games across time
    scales (Vol. 25, pp. 22–29). Presented at the GandALF: Games, Automata, Logic,
    and Formal Verification, Minori, Italy: EPTCS. <a href="https://doi.org/10.4204/EPTCS.25.6">https://doi.org/10.4204/EPTCS.25.6</a>'
  chicago: Chatterjee, Krishnendu, and Ritankar Majumdar. “Discounting in Games across
    Time Scales,” 25:22–29. EPTCS, 2010. <a href="https://doi.org/10.4204/EPTCS.25.6">https://doi.org/10.4204/EPTCS.25.6</a>.
  ieee: 'K. Chatterjee and R. Majumdar, “Discounting in games across time scales,”
    presented at the GandALF: Games, Automata, Logic, and Formal Verification, Minori,
    Italy, 2010, vol. 25, pp. 22–29.'
  ista: 'Chatterjee K, Majumdar R. 2010. Discounting in games across time scales.
    GandALF: Games, Automata, Logic, and Formal Verification, EPTCS, vol. 25, 22–29.'
  mla: Chatterjee, Krishnendu, and Ritankar Majumdar. <i>Discounting in Games across
    Time Scales</i>. Vol. 25, EPTCS, 2010, pp. 22–29, doi:<a href="https://doi.org/10.4204/EPTCS.25.6">10.4204/EPTCS.25.6</a>.
  short: K. Chatterjee, R. Majumdar, in:, EPTCS, 2010, pp. 22–29.
conference:
  end_date: 2010-06-18
  location: Minori, Italy
  name: 'GandALF: Games, Automata, Logic, and Formal Verification'
  start_date: 2010-06-17
date_created: 2018-12-11T12:05:31Z
date_published: 2010-06-08T00:00:00Z
date_updated: 2023-09-04T11:47:04Z
day: '08'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.4204/EPTCS.25.6
external_id:
  arxiv:
  - '1006.1403'
file:
- access_level: open_access
  checksum: 2bdf1e9103710555c6251ca4153cb5e9
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:12:19Z
  date_updated: 2020-07-14T12:46:17Z
  file_id: '4937'
  file_name: IST-2016-491-v1+1_1006.1403v1.pdf
  file_size: 74598
  relation: main_file
file_date_updated: 2020-07-14T12:46:17Z
has_accepted_license: '1'
intvolume: '        25'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 22 - 29
publication_status: published
publisher: EPTCS
publist_id: '2329'
pubrep_id: '491'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Discounting in games across time scales
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 25
year: '2010'
...
---
_id: '3853'
abstract:
- lang: eng
  text: 'Quantitative languages are an extension of boolean languages that assign
    to each word a real number. Mean-payoff automata are finite automata with numerical
    weights on transitions that assign to each infinite path the long-run average
    of the transition weights. When the mode of branching of the automaton is deterministic,
    nondeterministic, or alternating, the corresponding class of quantitative languages
    is not robust as it is not closed under the pointwise operations of max, min,
    sum, and numerical complement. Nondeterministic and alternating mean-payoff automata
    are not decidable either, as the quantitative generalization of the problems of
    universality and language inclusion is undecidable. We introduce a new class of
    quantitative languages, defined by mean-payoff automaton expressions, which is
    robust and decidable: it is closed under the four pointwise operations, and we
    show that all decision problems are decidable for this class. Mean-payoff automaton
    expressions subsume deterministic meanpayoff automata, and we show that they have
    expressive power incomparable to nondeterministic and alternating mean-payoff
    automata. We also present for the first time an algorithm to compute distance
    between two quantitative languages, and in our case the quantitative languages
    are given as mean-payoff automaton expressions.'
alternative_title:
- LNCS
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Laurent
  full_name: Doyen, Laurent
  last_name: Doyen
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- 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: Philippe
  full_name: Rannou, Philippe
  last_name: Rannou
citation:
  ama: 'Chatterjee K, Doyen L, Edelsbrunner H, Henzinger TA, Rannou P. Mean-payoff
    automaton expressions. In: Vol 6269. Schloss Dagstuhl - Leibniz-Zentrum für Informatik;
    2010:269-283. doi:<a href="https://doi.org/10.1007/978-3-642-15375-4_19">10.1007/978-3-642-15375-4_19</a>'
  apa: 'Chatterjee, K., Doyen, L., Edelsbrunner, H., Henzinger, T. A., &#38; Rannou,
    P. (2010). Mean-payoff automaton expressions (Vol. 6269, pp. 269–283). Presented
    at the CONCUR: Concurrency Theory, Paris, France: Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik. <a href="https://doi.org/10.1007/978-3-642-15375-4_19">https://doi.org/10.1007/978-3-642-15375-4_19</a>'
  chicago: Chatterjee, Krishnendu, Laurent Doyen, Herbert Edelsbrunner, Thomas A Henzinger,
    and Philippe Rannou. “Mean-Payoff Automaton Expressions,” 6269:269–83. Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik, 2010. <a href="https://doi.org/10.1007/978-3-642-15375-4_19">https://doi.org/10.1007/978-3-642-15375-4_19</a>.
  ieee: 'K. Chatterjee, L. Doyen, H. Edelsbrunner, T. A. Henzinger, and P. Rannou,
    “Mean-payoff automaton expressions,” presented at the CONCUR: Concurrency Theory,
    Paris, France, 2010, vol. 6269, pp. 269–283.'
  ista: 'Chatterjee K, Doyen L, Edelsbrunner H, Henzinger TA, Rannou P. 2010. Mean-payoff
    automaton expressions. CONCUR: Concurrency Theory, LNCS, vol. 6269, 269–283.'
  mla: Chatterjee, Krishnendu, et al. <i>Mean-Payoff Automaton Expressions</i>. Vol.
    6269, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2010, pp. 269–83, doi:<a
    href="https://doi.org/10.1007/978-3-642-15375-4_19">10.1007/978-3-642-15375-4_19</a>.
  short: K. Chatterjee, L. Doyen, H. Edelsbrunner, T.A. Henzinger, P. Rannou, in:,
    Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2010, pp. 269–283.
conference:
  end_date: 2010-09-03
  location: Paris, France
  name: 'CONCUR: Concurrency Theory'
  start_date: 2010-08-31
date_created: 2018-12-11T12:05:31Z
date_published: 2010-11-18T00:00:00Z
date_updated: 2021-01-12T07:52:40Z
day: '18'
ddc:
- '000'
- '005'
department:
- _id: KrCh
- _id: HeEd
- _id: ToHe
doi: 10.1007/978-3-642-15375-4_19
ec_funded: 1
file:
- access_level: open_access
  checksum: 4f753ae99d076553fb8733e2c8b390e2
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:15:41Z
  date_updated: 2020-07-14T12:46:17Z
  file_id: '5163'
  file_name: IST-2012-62-v1+1_Mean-payoff_automaton_expressions.pdf
  file_size: 233260
  relation: main_file
file_date_updated: 2020-07-14T12:46:17Z
has_accepted_license: '1'
intvolume: '      6269'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Submitted Version
page: 269 - 283
project:
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '215543'
  name: COMponent-Based Embedded Systems design Techniques
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '214373'
  name: Design for Embedded Systems
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '2328'
pubrep_id: '62'
quality_controlled: '1'
scopus_import: 1
status: public
title: Mean-payoff automaton expressions
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 6269
year: '2010'
...
---
_id: '3854'
abstract:
- lang: eng
  text: 'Graph games of infinite length provide a natural model for open reactive
    systems: one player (Eve) represents the controller and the other player (Adam)
    represents the environment. The evolution of the system depends on the decisions
    of both players. The specification for the system is usually given as an ω-regular
    language L over paths and Eve’s goal is to ensure that the play belongs to L irrespective
    of Adam’s behaviour. The classical notion of winning strategies fails to capture
    several interesting scenarios. For example, strong fairness (Streett) conditions
    are specified by a number of request-grant pairs and require every pair that is
    requested infinitely often to be granted infinitely often: Eve might win just
    by preventing Adam from making any new request, but a “better” strategy would
    allow Adam to make as many requests as possible and still ensure fairness. To
    address such questions, we introduce the notion of obliging games, where Eve has
    to ensure a strong condition Φ, while always allowing Adam to satisfy a weak condition
    Ψ. We present a linear time reduction of obliging games with two Muller conditions
    Φ and Ψ to classical Muller games. We consider obliging Streett games and show
    they are co-NP complete, and show a natural quantitative optimisation problem
    for obliging Streett games is in FNP. We also show how obliging games can provide
    new and interesting semantics for multi-player games.'
alternative_title:
- LNCS
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Florian
  full_name: Horn, Florian
  id: 37327ACE-F248-11E8-B48F-1D18A9856A87
  last_name: Horn
- first_name: Christof
  full_name: Löding, Christof
  last_name: Löding
citation:
  ama: 'Chatterjee K, Horn F, Löding C. Obliging games. In: Vol 6269. Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik; 2010:284-296. doi:<a href="https://doi.org/10.1007/978-3-642-15375-4_20">10.1007/978-3-642-15375-4_20</a>'
  apa: 'Chatterjee, K., Horn, F., &#38; Löding, C. (2010). Obliging games (Vol. 6269,
    pp. 284–296). Presented at the CONCUR: Concurrency Theory, Paris, France: Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.1007/978-3-642-15375-4_20">https://doi.org/10.1007/978-3-642-15375-4_20</a>'
  chicago: Chatterjee, Krishnendu, Florian Horn, and Christof Löding. “Obliging Games,”
    6269:284–96. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2010. <a href="https://doi.org/10.1007/978-3-642-15375-4_20">https://doi.org/10.1007/978-3-642-15375-4_20</a>.
  ieee: 'K. Chatterjee, F. Horn, and C. Löding, “Obliging games,” presented at the
    CONCUR: Concurrency Theory, Paris, France, 2010, vol. 6269, pp. 284–296.'
  ista: 'Chatterjee K, Horn F, Löding C. 2010. Obliging games. CONCUR: Concurrency
    Theory, LNCS, vol. 6269, 284–296.'
  mla: Chatterjee, Krishnendu, et al. <i>Obliging Games</i>. Vol. 6269, Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik, 2010, pp. 284–96, doi:<a href="https://doi.org/10.1007/978-3-642-15375-4_20">10.1007/978-3-642-15375-4_20</a>.
  short: K. Chatterjee, F. Horn, C. Löding, in:, Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, 2010, pp. 284–296.
conference:
  end_date: 2010-09-03
  location: Paris, France
  name: 'CONCUR: Concurrency Theory'
  start_date: 2010-08-31
date_created: 2018-12-11T12:05:32Z
date_published: 2010-09-08T00:00:00Z
date_updated: 2021-01-12T07:52:41Z
day: '08'
department:
- _id: KrCh
doi: 10.1007/978-3-642-15375-4_20
intvolume: '      6269'
language:
- iso: eng
month: '09'
oa_version: None
page: 284 - 296
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '2327'
quality_controlled: '1'
scopus_import: 1
status: public
title: Obliging games
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 6269
year: '2010'
...
---
_id: '3855'
abstract:
- lang: eng
  text: 'We study observation-based strategies for partially-observable Markov decision
    processes (POMDPs) with parity objectives. An observation-based strategy relies
    on partial information about the history of a play, namely, on the past sequence
    of observations. We consider qualitative analysis problems: given a POMDP with
    a parity objective, decide whether there exists an observation-based strategy
    to achieve the objective with probability 1 (almost-sure winning), or with positive
    probability (positive winning). Our main results are twofold. First, we present
    a complete picture of the computational complexity of the qualitative analysis
    problem for POMDPs with parity objectives and its subclasses: safety, reachability,
    Büchi, and coBüchi objectives. We establish several upper and lower bounds that
    were not known in the literature. Second, we give optimal bounds (matching upper
    and lower bounds) for the memory required by pure and randomized observation-based
    strategies for each class of objectives.'
alternative_title:
- LNCS
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Laurent
  full_name: Doyen, Laurent
  last_name: Doyen
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
citation:
  ama: 'Chatterjee K, Doyen L, Henzinger TA. Qualitative analysis of partially-observable
    Markov Decision Processes. In: Vol 6281. Springer; 2010:258-269. doi:<a href="https://doi.org/10.1007/978-3-642-15155-2_24">10.1007/978-3-642-15155-2_24</a>'
  apa: 'Chatterjee, K., Doyen, L., &#38; Henzinger, T. A. (2010). Qualitative analysis
    of partially-observable Markov Decision Processes (Vol. 6281, pp. 258–269). Presented
    at the MFCS: Mathematical Foundations of Computer Science, Brno, Czech Republic:
    Springer. <a href="https://doi.org/10.1007/978-3-642-15155-2_24">https://doi.org/10.1007/978-3-642-15155-2_24</a>'
  chicago: Chatterjee, Krishnendu, Laurent Doyen, and Thomas A Henzinger. “Qualitative
    Analysis of Partially-Observable Markov Decision Processes,” 6281:258–69. Springer,
    2010. <a href="https://doi.org/10.1007/978-3-642-15155-2_24">https://doi.org/10.1007/978-3-642-15155-2_24</a>.
  ieee: 'K. Chatterjee, L. Doyen, and T. A. Henzinger, “Qualitative analysis of partially-observable
    Markov Decision Processes,” presented at the MFCS: Mathematical Foundations of
    Computer Science, Brno, Czech Republic, 2010, vol. 6281, pp. 258–269.'
  ista: 'Chatterjee K, Doyen L, Henzinger TA. 2010. Qualitative analysis of partially-observable
    Markov Decision Processes. MFCS: Mathematical Foundations of Computer Science,
    LNCS, vol. 6281, 258–269.'
  mla: Chatterjee, Krishnendu, et al. <i>Qualitative Analysis of Partially-Observable
    Markov Decision Processes</i>. Vol. 6281, Springer, 2010, pp. 258–69, doi:<a href="https://doi.org/10.1007/978-3-642-15155-2_24">10.1007/978-3-642-15155-2_24</a>.
  short: K. Chatterjee, L. Doyen, T.A. Henzinger, in:, Springer, 2010, pp. 258–269.
conference:
  end_date: 2010-08-27
  location: Brno, Czech Republic
  name: 'MFCS: Mathematical Foundations of Computer Science'
  start_date: 2010-08-23
date_created: 2018-12-11T12:05:32Z
date_published: 2010-08-01T00:00:00Z
date_updated: 2023-02-23T12:24:22Z
day: '01'
ddc:
- '004'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1007/978-3-642-15155-2_24
ec_funded: 1
file:
- access_level: open_access
  checksum: b6c82ec82f194e5b0ab7c1c3800e4580
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:13:51Z
  date_updated: 2020-07-14T12:46:17Z
  file_id: '5038'
  file_name: IST-2012-61-v1+1_Qualitative_analysis_of_partially-observable_Markov_Decision_Processes.pdf
  file_size: 173948
  relation: main_file
file_date_updated: 2020-07-14T12:46:17Z
has_accepted_license: '1'
intvolume: '      6281'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Submitted Version
page: 258 - 269
project:
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '215543'
  name: COMponent-Based Embedded Systems design Techniques
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '214373'
  name: Design for Embedded Systems
publication_status: published
publisher: Springer
publist_id: '2326'
pubrep_id: '61'
quality_controlled: '1'
related_material:
  record:
  - id: '5395'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Qualitative analysis of partially-observable Markov Decision Processes
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 6281
year: '2010'
...
---
_id: '3856'
abstract:
- lang: eng
  text: 'We consider two-player zero-sum games on graphs. These games can be classified
    on the basis of the information of the players and on the mode of interaction
    between them. On the basis of information the classification is as follows: (a)
    partial-observation (both players have partial view of the game); (b) one-sided
    complete-observation (one player has complete observation); and (c) complete-observation
    (both players have complete view of the game). On the basis of mode of interaction
    we have the following classification: (a) concurrent (players interact simultaneously);
    and (b) turn-based (players interact in turn). The two sources of randomness in
    these games are randomness in transition function and randomness in strategies.
    In general, randomized strategies are more powerful than deterministic strategies,
    and randomness in transitions gives more general classes of games. We present
    a complete characterization for the classes of games where randomness is not helpful
    in: (a) the transition function (probabilistic transition can be simulated by
    deterministic transition); and (b) strategies (pure strategies are as powerful
    as randomized strategies). As consequence of our characterization we obtain new
    undecidability results for these games. '
acknowledgement: This research was supported by the European Union project COMBEST
  and the European Network of Excellence ArtistDesign.
alternative_title:
- LNCS
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Laurent
  full_name: Doyen, Laurent
  last_name: Doyen
- first_name: Hugo
  full_name: Gimbert, Hugo
  last_name: Gimbert
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
citation:
  ama: 'Chatterjee K, Doyen L, Gimbert H, Henzinger TA. Randomness for free. In: Vol
    6281. Springer; 2010:246-257. doi:<a href="https://doi.org/10.1007/978-3-642-15155-2_23">10.1007/978-3-642-15155-2_23</a>'
  apa: 'Chatterjee, K., Doyen, L., Gimbert, H., &#38; Henzinger, T. A. (2010). Randomness
    for free (Vol. 6281, pp. 246–257). Presented at the MFCS: Mathematical Foundations
    of Computer Science, Brno, Czech Republic: Springer. <a href="https://doi.org/10.1007/978-3-642-15155-2_23">https://doi.org/10.1007/978-3-642-15155-2_23</a>'
  chicago: Chatterjee, Krishnendu, Laurent Doyen, Hugo Gimbert, and Thomas A Henzinger.
    “Randomness for Free,” 6281:246–57. Springer, 2010. <a href="https://doi.org/10.1007/978-3-642-15155-2_23">https://doi.org/10.1007/978-3-642-15155-2_23</a>.
  ieee: 'K. Chatterjee, L. Doyen, H. Gimbert, and T. A. Henzinger, “Randomness for
    free,” presented at the MFCS: Mathematical Foundations of Computer Science, Brno,
    Czech Republic, 2010, vol. 6281, pp. 246–257.'
  ista: 'Chatterjee K, Doyen L, Gimbert H, Henzinger TA. 2010. Randomness for free.
    MFCS: Mathematical Foundations of Computer Science, LNCS, vol. 6281, 246–257.'
  mla: Chatterjee, Krishnendu, et al. <i>Randomness for Free</i>. Vol. 6281, Springer,
    2010, pp. 246–57, doi:<a href="https://doi.org/10.1007/978-3-642-15155-2_23">10.1007/978-3-642-15155-2_23</a>.
  short: K. Chatterjee, L. Doyen, H. Gimbert, T.A. Henzinger, in:, Springer, 2010,
    pp. 246–257.
conference:
  end_date: 2010-08-27
  location: Brno, Czech Republic
  name: 'MFCS: Mathematical Foundations of Computer Science'
  start_date: 2010-08-23
date_created: 2018-12-11T12:05:32Z
date_published: 2010-09-06T00:00:00Z
date_updated: 2023-02-23T10:12:00Z
day: '06'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1007/978-3-642-15155-2_23
ec_funded: 1
intvolume: '      6281'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1006.0673v1
month: '09'
oa: 1
oa_version: Preprint
page: 246 - 257
project:
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '215543'
  name: COMponent-Based Embedded Systems design Techniques
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '214373'
  name: Design for Embedded Systems
publication_status: published
publisher: Springer
publist_id: '2325'
pubrep_id: '60'
quality_controlled: '1'
related_material:
  record:
  - id: '1731'
    relation: later_version
    status: public
scopus_import: 1
status: public
title: Randomness for free
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6281
year: '2010'
...
---
_id: '3857'
abstract:
- lang: eng
  text: We consider probabilistic automata on infinite words with acceptance defined
    by safety, reachability, Büchi, coBüchi, and limit-average conditions. We consider
    quantitative and qualitative decision problems. We present extensions and adaptations
    of proofs for probabilistic finite automata and present an almost complete characterization
    of the decidability and undecidability frontier of the quantitative and qualitative
    decision problems for probabilistic automata on infinite words.
alternative_title:
- LNCS
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
citation:
  ama: 'Chatterjee K, Henzinger TA. Probabilistic Automata on infinite words: decidability
    and undecidability results. In: Vol 6252. Springer; 2010:1-16. doi:<a href="https://doi.org/10.1007/978-3-642-15643-4_1">10.1007/978-3-642-15643-4_1</a>'
  apa: 'Chatterjee, K., &#38; Henzinger, T. A. (2010). Probabilistic Automata on infinite
    words: decidability and undecidability results (Vol. 6252, pp. 1–16). Presented
    at the ATVA: Automated Technology for Verification and Analysis, Singapore, Singapore:
    Springer. <a href="https://doi.org/10.1007/978-3-642-15643-4_1">https://doi.org/10.1007/978-3-642-15643-4_1</a>'
  chicago: 'Chatterjee, Krishnendu, and Thomas A Henzinger. “Probabilistic Automata
    on Infinite Words: Decidability and Undecidability Results,” 6252:1–16. Springer,
    2010. <a href="https://doi.org/10.1007/978-3-642-15643-4_1">https://doi.org/10.1007/978-3-642-15643-4_1</a>.'
  ieee: 'K. Chatterjee and T. A. Henzinger, “Probabilistic Automata on infinite words:
    decidability and undecidability results,” presented at the ATVA: Automated Technology
    for Verification and Analysis, Singapore, Singapore, 2010, vol. 6252, pp. 1–16.'
  ista: 'Chatterjee K, Henzinger TA. 2010. Probabilistic Automata on infinite words:
    decidability and undecidability results. ATVA: Automated Technology for Verification
    and Analysis, LNCS, vol. 6252, 1–16.'
  mla: 'Chatterjee, Krishnendu, and Thomas A. Henzinger. <i>Probabilistic Automata
    on Infinite Words: Decidability and Undecidability Results</i>. Vol. 6252, Springer,
    2010, pp. 1–16, doi:<a href="https://doi.org/10.1007/978-3-642-15643-4_1">10.1007/978-3-642-15643-4_1</a>.'
  short: K. Chatterjee, T.A. Henzinger, in:, Springer, 2010, pp. 1–16.
conference:
  end_date: 2010-09-24
  location: Singapore, Singapore
  name: 'ATVA: Automated Technology for Verification and Analysis'
  start_date: 2010-09-21
date_created: 2018-12-11T12:05:33Z
date_published: 2010-10-12T00:00:00Z
date_updated: 2023-02-23T12:24:14Z
day: '12'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1007/978-3-642-15643-4_1
ec_funded: 1
intvolume: '      6252'
language:
- iso: eng
month: '10'
oa_version: None
page: 1 - 16
project:
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '215543'
  name: COMponent-Based Embedded Systems design Techniques
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '214373'
  name: Design for Embedded Systems
publication_status: published
publisher: Springer
publist_id: '2324'
pubrep_id: '28'
quality_controlled: '1'
related_material:
  record:
  - id: '5392'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: 'Probabilistic Automata on infinite words: decidability and undecidability
  results'
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 6252
year: '2010'
...
---
_id: '3858'
abstract:
- lang: eng
  text: 'We consider two-player zero-sum games on graphs. On the basis of the information
    available to the players these games can be classified as follows: (a) partial-observation
    (both players have partial view of the game); (b) one-sided partial-observation
    (one player has partial-observation and the other player has complete-observation);
    and (c) complete-observation (both players have com- plete view of the game).
    We survey the complexity results for the problem of de- ciding the winner in various
    classes of partial-observation games with ω-regular winning conditions specified
    as parity objectives. We present a reduction from the class of parity objectives
    that depend on sequence of states of the game to the sub-class of parity objectives
    that only depend on the sequence of observations. We also establish that partial-observation
    acyclic games are PSPACE-complete.'
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Laurent
  full_name: Doyen, Laurent
  last_name: Doyen
citation:
  ama: 'Chatterjee K, Doyen L. The complexity of partial-observation parity games.
    In: Vol 6397. Springer; 2010:1-14. doi:<a href="https://doi.org/10.1007/978-3-642-16242-8_1">10.1007/978-3-642-16242-8_1</a>'
  apa: 'Chatterjee, K., &#38; Doyen, L. (2010). The complexity of partial-observation
    parity games (Vol. 6397, pp. 1–14). Presented at the LPAR: Logic for Programming,
    Artificial Intelligence, and Reasoning, Yogyakarta, Indonesia: Springer. <a href="https://doi.org/10.1007/978-3-642-16242-8_1">https://doi.org/10.1007/978-3-642-16242-8_1</a>'
  chicago: Chatterjee, Krishnendu, and Laurent Doyen. “The Complexity of Partial-Observation
    Parity Games,” 6397:1–14. Springer, 2010. <a href="https://doi.org/10.1007/978-3-642-16242-8_1">https://doi.org/10.1007/978-3-642-16242-8_1</a>.
  ieee: 'K. Chatterjee and L. Doyen, “The complexity of partial-observation parity
    games,” presented at the LPAR: Logic for Programming, Artificial Intelligence,
    and Reasoning, Yogyakarta, Indonesia, 2010, vol. 6397, pp. 1–14.'
  ista: 'Chatterjee K, Doyen L. 2010. The complexity of partial-observation parity
    games. LPAR: Logic for Programming, Artificial Intelligence, and Reasoning, LNCS,
    vol. 6397, 1–14.'
  mla: Chatterjee, Krishnendu, and Laurent Doyen. <i>The Complexity of Partial-Observation
    Parity Games</i>. Vol. 6397, Springer, 2010, pp. 1–14, doi:<a href="https://doi.org/10.1007/978-3-642-16242-8_1">10.1007/978-3-642-16242-8_1</a>.
  short: K. Chatterjee, L. Doyen, in:, Springer, 2010, pp. 1–14.
conference:
  end_date: 2010-10-15
  location: Yogyakarta, Indonesia
  name: 'LPAR: Logic for Programming, Artificial Intelligence, and Reasoning'
  start_date: 2010-10-10
date_created: 2018-12-11T12:05:33Z
date_published: 2010-12-09T00:00:00Z
date_updated: 2021-01-12T07:52:43Z
day: '09'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.1007/978-3-642-16242-8_1
file:
- access_level: open_access
  checksum: 770e86e5d78c56fddb4786a8da7ef126
  content_type: application/pdf
  creator: dernst
  date_created: 2020-05-19T16:29:04Z
  date_updated: 2020-07-14T12:46:18Z
  file_id: '7872'
  file_name: 2010_LPAR_Chatterjee.pdf
  file_size: 142836
  relation: main_file
file_date_updated: 2020-07-14T12:46:18Z
has_accepted_license: '1'
intvolume: '      6397'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Submitted Version
page: 1 - 14
publication_status: published
publisher: Springer
publist_id: '2323'
quality_controlled: '1'
scopus_import: 1
status: public
title: The complexity of partial-observation parity games
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6397
year: '2010'
...
---
_id: '3859'
abstract:
- lang: eng
  text: This book constitutes the proceedings of the 8th International Conference
    on Formal Modeling and Analysis of Timed Systems, FORMATS 2010, held in Klosterneuburg,
    Austria in September 2010. The 14 papers presented were carefully reviewed and
    selected from 31 submissions. In addition, the volume contains 3 invited talks
    and 2 invited tutorials.The aim of FORMATS is to promote the study of fundamental
    and practical aspects of timed systems, and to bring together researchers from
    different disciplines that share an interest in the modeling and analysis of timed
    systems. Typical topics include foundations and semantics, methods and tools,
    and applications.
alternative_title:
- LNCS
citation:
  ama: Chatterjee K, Henzinger TA, eds. <i>Formal Modeling and Analysis of Timed Systems</i>.
    Vol 6246. Springer; 2010. doi:<a href="https://doi.org/10.1007/978-3-642-15297-9">10.1007/978-3-642-15297-9</a>
  apa: 'Chatterjee, K., &#38; Henzinger, T. A. (Eds.). (2010). <i>Formal modeling
    and analysis of timed systems</i> (Vol. 6246). Presented at the FORMATS: Formal
    Modeling and Analysis of Timed Systems, Klosterneuburg, Austria: Springer. <a
    href="https://doi.org/10.1007/978-3-642-15297-9">https://doi.org/10.1007/978-3-642-15297-9</a>'
  chicago: Chatterjee, Krishnendu, and Thomas A Henzinger, eds. <i>Formal Modeling
    and Analysis of Timed Systems</i>. Vol. 6246. Springer, 2010. <a href="https://doi.org/10.1007/978-3-642-15297-9">https://doi.org/10.1007/978-3-642-15297-9</a>.
  ieee: K. Chatterjee and T. A. Henzinger, Eds., <i>Formal modeling and analysis of
    timed systems</i>, vol. 6246. Springer, 2010.
  ista: Chatterjee K, Henzinger TA eds. 2010. Formal modeling and analysis of timed
    systems, Springer,p.
  mla: Chatterjee, Krishnendu, and Thomas A. Henzinger, editors. <i>Formal Modeling
    and Analysis of Timed Systems</i>. Vol. 6246, Springer, 2010, doi:<a href="https://doi.org/10.1007/978-3-642-15297-9">10.1007/978-3-642-15297-9</a>.
  short: K. Chatterjee, T.A. Henzinger, eds., Formal Modeling and Analysis of Timed
    Systems, Springer, 2010.
conference:
  end_date: 2010-09-10
  location: Klosterneuburg, Austria
  name: 'FORMATS: Formal Modeling and Analysis of Timed Systems'
  start_date: 2010-09-08
date_created: 2018-12-11T12:05:33Z
date_published: 2010-09-20T00:00:00Z
date_updated: 2019-11-14T08:42:42Z
day: '20'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1007/978-3-642-15297-9
editor:
- 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
intvolume: '      6246'
language:
- iso: eng
month: '09'
oa_version: None
publication_status: published
publisher: Springer
publist_id: '2322'
quality_controlled: '1'
related_material:
  link:
  - description: eBook available via IST BookList
    relation: other
    url: https://koha.app.ist.ac.at/cgi-bin/koha/opac-detail.pl?biblionumber=12721
status: public
title: Formal modeling and analysis of timed systems
type: conference_editor
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 6246
year: '2010'
...
---
_id: '3860'
abstract:
- lang: eng
  text: 'In mean-payoff games, the objective of the protagonist is to ensure that
    the limit average of an infinite sequence of numeric weights is nonnegative. In
    energy games, the objective is to ensure that the running sum of weights is always
    nonnegative. Generalized mean-payoff and energy games replace individual weights
    by tuples, and the limit average (resp. running sum) of each coordinate must be
    (resp. remain) nonnegative. These games have applications in the synthesis of
    resource-bounded processes with multiple resources. We prove the finite-memory
    determinacy of generalized energy games and show the inter- reducibility of generalized
    mean-payoff and energy games for finite-memory strategies. We also improve the
    computational complexity for solving both classes of games with finite-memory
    strategies: while the previously best known upper bound was EXPSPACE, and no lower
    bound was known, we give an optimal coNP-complete bound. For memoryless strategies,
    we show that the problem of deciding the existence of a winning strategy for the
    protagonist is NP-complete.'
alternative_title:
- LIPIcs
article_processing_charge: No
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Laurent
  full_name: Doyen, Laurent
  last_name: Doyen
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Jean
  full_name: Raskin, Jean
  last_name: Raskin
citation:
  ama: 'Chatterjee K, Doyen L, Henzinger TA, Raskin J. Generalized mean-payoff and
    energy games. In: Vol 8. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2010:505-516.
    doi:<a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2010.505">10.4230/LIPIcs.FSTTCS.2010.505</a>'
  apa: 'Chatterjee, K., Doyen, L., Henzinger, T. A., &#38; Raskin, J. (2010). Generalized
    mean-payoff and energy games (Vol. 8, pp. 505–516). Presented at the FSTTCS: Foundations
    of Software Technology and Theoretical Computer Science, Chennai, India: Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2010.505">https://doi.org/10.4230/LIPIcs.FSTTCS.2010.505</a>'
  chicago: Chatterjee, Krishnendu, Laurent Doyen, Thomas A Henzinger, and Jean Raskin.
    “Generalized Mean-Payoff and Energy Games,” 8:505–16. Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, 2010. <a href="https://doi.org/10.4230/LIPIcs.FSTTCS.2010.505">https://doi.org/10.4230/LIPIcs.FSTTCS.2010.505</a>.
  ieee: 'K. Chatterjee, L. Doyen, T. A. Henzinger, and J. Raskin, “Generalized mean-payoff
    and energy games,” presented at the FSTTCS: Foundations of Software Technology
    and Theoretical Computer Science, Chennai, India, 2010, vol. 8, pp. 505–516.'
  ista: 'Chatterjee K, Doyen L, Henzinger TA, Raskin J. 2010. Generalized mean-payoff
    and energy games. FSTTCS: Foundations of Software Technology and Theoretical Computer
    Science, LIPIcs, vol. 8, 505–516.'
  mla: Chatterjee, Krishnendu, et al. <i>Generalized Mean-Payoff and Energy Games</i>.
    Vol. 8, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2010, pp. 505–16, doi:<a
    href="https://doi.org/10.4230/LIPIcs.FSTTCS.2010.505">10.4230/LIPIcs.FSTTCS.2010.505</a>.
  short: K. Chatterjee, L. Doyen, T.A. Henzinger, J. Raskin, in:, Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik, 2010, pp. 505–516.
conference:
  end_date: 2010-12-18
  location: Chennai, India
  name: 'FSTTCS: Foundations of Software Technology and Theoretical Computer Science'
  start_date: 2010-12-15
date_created: 2018-12-11T12:05:34Z
date_published: 2010-12-13T00:00:00Z
date_updated: 2021-01-12T07:52:44Z
day: '13'
ddc:
- '005'
department:
- _id: KrCh
- _id: ToHe
doi: 10.4230/LIPIcs.FSTTCS.2010.505
file:
- access_level: open_access
  checksum: 1caabd6319b979927208117a41192637
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:15:27Z
  date_updated: 2020-07-14T12:46:18Z
  file_id: '5147'
  file_name: IST-2012-59-v1+1_Generalized_mean-payoff_and_energy_games.pdf
  file_size: 178278
  relation: main_file
- access_level: open_access
  checksum: 3a59759ceeacdb5b578f3803d5e6769b
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:15:28Z
  date_updated: 2020-07-14T12:46:18Z
  file_id: '5148'
  file_name: IST-2016-59-v2+1_2_1_.pdf
  file_size: 477976
  relation: main_file
file_date_updated: 2020-07-14T12:46:18Z
has_accepted_license: '1'
intvolume: '         8'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Submitted Version
page: 505 - 516
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '2321'
pubrep_id: '59'
quality_controlled: '1'
scopus_import: 1
status: public
title: Generalized mean-payoff and energy games
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2010'
...
---
_id: '3861'
abstract:
- lang: eng
  text: We introduce strategy logic, a logic that treats strategies in two-player
    games as explicit first-order objects. The explicit treatment of strategies allows
    us to specify properties of nonzero-sum games in a simple and natural way. We
    show that the one-alternation fragment of strategy logic is strong enough to express
    the existence of Nash equilibria and secure equilibria, and subsumes other logics
    that were introduced to reason about games, such as ATL, ATL*, and game logic.
    We show that strategy logic is decidable, by constructing tree automata that recognize
    sets of strategies. While for the general logic, our decision procedure is nonelementary,
    for the simple fragment that is used above we show that the complexity is polynomial
    in the size of the game graph and optimal in the size of the formula (ranging
    from polynomial to 2EXPTIME depending on the form of the formula).
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: Nir
  full_name: Piterman, Nir
  last_name: Piterman
citation:
  ama: Chatterjee K, Henzinger TA, Piterman N. Strategy logic. <i>Information and
    Computation</i>. 2010;208(6):677-693. doi:<a href="https://doi.org/10.1016/j.ic.2009.07.004">10.1016/j.ic.2009.07.004</a>
  apa: Chatterjee, K., Henzinger, T. A., &#38; Piterman, N. (2010). Strategy logic.
    <i>Information and Computation</i>. Elsevier. <a href="https://doi.org/10.1016/j.ic.2009.07.004">https://doi.org/10.1016/j.ic.2009.07.004</a>
  chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Nir Piterman. “Strategy
    Logic.” <i>Information and Computation</i>. Elsevier, 2010. <a href="https://doi.org/10.1016/j.ic.2009.07.004">https://doi.org/10.1016/j.ic.2009.07.004</a>.
  ieee: K. Chatterjee, T. A. Henzinger, and N. Piterman, “Strategy logic,” <i>Information
    and Computation</i>, vol. 208, no. 6. Elsevier, pp. 677–693, 2010.
  ista: Chatterjee K, Henzinger TA, Piterman N. 2010. Strategy logic. Information
    and Computation. 208(6), 677–693.
  mla: Chatterjee, Krishnendu, et al. “Strategy Logic.” <i>Information and Computation</i>,
    vol. 208, no. 6, Elsevier, 2010, pp. 677–93, doi:<a href="https://doi.org/10.1016/j.ic.2009.07.004">10.1016/j.ic.2009.07.004</a>.
  short: K. Chatterjee, T.A. Henzinger, N. Piterman, Information and Computation 208
    (2010) 677–693.
date_created: 2018-12-11T12:05:34Z
date_published: 2010-06-01T00:00:00Z
date_updated: 2023-02-23T11:46:57Z
day: '01'
ddc:
- '000'
- '004'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1016/j.ic.2009.07.004
file:
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  checksum: 13bff93f3c2a014e2908145a4517f177
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  date_created: 2018-12-12T10:11:54Z
  date_updated: 2020-07-14T12:46:18Z
  file_id: '4911'
  file_name: IST-2012-56-v1+1_Strategy_logic.pdf
  file_size: 189120
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file_date_updated: 2020-07-14T12:46:18Z
has_accepted_license: '1'
intvolume: '       208'
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Submitted Version
page: 677 - 693
publication: Information and Computation
publication_status: published
publisher: Elsevier
publist_id: '2317'
pubrep_id: '56'
quality_controlled: '1'
related_material:
  record:
  - id: '3884'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Strategy logic
type: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 208
year: '2010'
...
---
_id: '3863'
abstract:
- lang: eng
  text: 'We consider two-player parity games with imperfect information in which strategies
    rely on observations that provide imperfect information about the history of a
    play. To solve such games, i.e., to determine the winning regions of players and
    corresponding winning strategies, one can use the subset construction to build
    an equivalent perfect-information game. Recently, an algorithm that avoids the
    inefficient subset construction has been proposed. The algorithm performs a fixed-point
    computation in a lattice of antichains, thus maintaining a succinct representation
    of state sets. However, this representation does not allow to recover winning
    strategies. In this paper, we build on the antichain approach to develop an algorithm
    for constructing the winning strategies in parity games of imperfect information.
    One major obstacle in adapting the classical procedure is that the complementation
    of attractor sets would break the invariant of downward-closedness on which the
    antichain representation relies. We overcome this difficulty by decomposing problem
    instances recursively into games with a combination of reachability, safety, and
    simpler parity conditions. We also report on an experimental implementation of
    our algorithm: to our knowledge, this is the first implementation of a procedure
    for solving imperfect-information parity games on graphs.'
author:
- first_name: Dietmar
  full_name: Berwanger, Dietmar
  last_name: Berwanger
- 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: De Wulf, Martin
  last_name: De Wulf
- first_name: Laurent
  full_name: Doyen, Laurent
  last_name: Doyen
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
citation:
  ama: Berwanger D, Chatterjee K, De Wulf M, Doyen L, Henzinger TA. Strategy construction
    for parity games with imperfect information. <i>Information and Computation</i>.
    2010;208(10):1206-1220. doi:<a href="https://doi.org/10.1016/j.ic.2009.09.006">10.1016/j.ic.2009.09.006</a>
  apa: Berwanger, D., Chatterjee, K., De Wulf, M., Doyen, L., &#38; Henzinger, T.
    A. (2010). Strategy construction for parity games with imperfect information.
    <i>Information and Computation</i>. Elsevier. <a href="https://doi.org/10.1016/j.ic.2009.09.006">https://doi.org/10.1016/j.ic.2009.09.006</a>
  chicago: Berwanger, Dietmar, Krishnendu Chatterjee, Martin De Wulf, Laurent Doyen,
    and Thomas A Henzinger. “Strategy Construction for Parity Games with Imperfect
    Information.” <i>Information and Computation</i>. Elsevier, 2010. <a href="https://doi.org/10.1016/j.ic.2009.09.006">https://doi.org/10.1016/j.ic.2009.09.006</a>.
  ieee: D. Berwanger, K. Chatterjee, M. De Wulf, L. Doyen, and T. A. Henzinger, “Strategy
    construction for parity games with imperfect information,” <i>Information and
    Computation</i>, vol. 208, no. 10. Elsevier, pp. 1206–1220, 2010.
  ista: Berwanger D, Chatterjee K, De Wulf M, Doyen L, Henzinger TA. 2010. Strategy
    construction for parity games with imperfect information. Information and Computation.
    208(10), 1206–1220.
  mla: Berwanger, Dietmar, et al. “Strategy Construction for Parity Games with Imperfect
    Information.” <i>Information and Computation</i>, vol. 208, no. 10, Elsevier,
    2010, pp. 1206–20, doi:<a href="https://doi.org/10.1016/j.ic.2009.09.006">10.1016/j.ic.2009.09.006</a>.
  short: D. Berwanger, K. Chatterjee, M. De Wulf, L. Doyen, T.A. Henzinger, Information
    and Computation 208 (2010) 1206–1220.
date_created: 2018-12-11T12:05:35Z
date_published: 2010-10-01T00:00:00Z
date_updated: 2023-02-23T11:46:47Z
day: '01'
ddc:
- '005'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1016/j.ic.2009.09.006
ec_funded: 1
file:
- access_level: open_access
  checksum: 29d146e4f8049dbb7f80bbf7ea3700ed
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:17:44Z
  date_updated: 2020-07-14T12:46:18Z
  file_id: '5300'
  file_name: IST-2012-58-v1+1_Strategy_construction_for_parity_games_with_imperfect_information.pdf
  file_size: 287496
  relation: main_file
file_date_updated: 2020-07-14T12:46:18Z
has_accepted_license: '1'
intvolume: '       208'
issue: '10'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Submitted Version
page: 1206 - 1220
project:
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '215543'
  name: COMponent-Based Embedded Systems design Techniques
publication: Information and Computation
publication_status: published
publisher: Elsevier
publist_id: '2319'
pubrep_id: '58'
quality_controlled: '1'
related_material:
  record:
  - id: '3880'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Strategy construction for parity games with imperfect information
type: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 208
year: '2010'
...
---
_id: '3864'
abstract:
- lang: eng
  text: 'Often one has a preference order among the different systems that satisfy
    a given specification. Under a probabilistic assumption about the possible inputs,
    such a preference order is naturally expressed by a weighted automaton, which
    assigns to each word a value, such that a system is preferred if it generates
    a higher expected value. We solve the following optimal-synthesis problem: given
    an omega-regular specification, a Markov chain that describes the distribution
    of inputs, and a weighted automaton that measures how well a system satisfies
    the given specification tinder the given input assumption, synthesize a system
    that optimizes the measured value. For safety specifications and measures that
    are defined by mean-payoff automata, the optimal-synthesis problem amounts to
    finding a strategy in a Markov decision process (MDP) that is optimal for a long-run
    average reward objective, which can be done in polynomial time. For general omega-regular
    specifications, the solution rests on a new, polynomial-time algorithm for computing
    optimal strategies in MDPs with mean-payoff parity objectives. We present some
    experimental results showing optimal systems that were automatically generated
    in this way.'
acknowledgement: This research was supported by the European Union project COMBEST
  and the European Network of Excellence ArtistDesign.
alternative_title:
- LNCS
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Barbara
  full_name: Jobstmann, Barbara
  last_name: Jobstmann
- first_name: Rohit
  full_name: Singh, Rohit
  last_name: Singh
citation:
  ama: 'Chatterjee K, Henzinger TA, Jobstmann B, Singh R. Measuring and synthesizing
    systems in probabilistic environments. In: Vol 6174. Springer; 2010:380-395. doi:<a
    href="https://doi.org/10.1007/978-3-642-14295-6_34">10.1007/978-3-642-14295-6_34</a>'
  apa: 'Chatterjee, K., Henzinger, T. A., Jobstmann, B., &#38; Singh, R. (2010). Measuring
    and synthesizing systems in probabilistic environments (Vol. 6174, pp. 380–395).
    Presented at the CAV: Computer Aided Verification, Edinburgh, United Kingdom:
    Springer. <a href="https://doi.org/10.1007/978-3-642-14295-6_34">https://doi.org/10.1007/978-3-642-14295-6_34</a>'
  chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Barbara Jobstmann, and Rohit
    Singh. “Measuring and Synthesizing Systems in Probabilistic Environments,” 6174:380–95.
    Springer, 2010. <a href="https://doi.org/10.1007/978-3-642-14295-6_34">https://doi.org/10.1007/978-3-642-14295-6_34</a>.
  ieee: 'K. Chatterjee, T. A. Henzinger, B. Jobstmann, and R. Singh, “Measuring and
    synthesizing systems in probabilistic environments,” presented at the CAV: Computer
    Aided Verification, Edinburgh, United Kingdom, 2010, vol. 6174, pp. 380–395.'
  ista: 'Chatterjee K, Henzinger TA, Jobstmann B, Singh R. 2010. Measuring and synthesizing
    systems in probabilistic environments. CAV: Computer Aided Verification, LNCS,
    vol. 6174, 380–395.'
  mla: Chatterjee, Krishnendu, et al. <i>Measuring and Synthesizing Systems in Probabilistic
    Environments</i>. Vol. 6174, Springer, 2010, pp. 380–95, doi:<a href="https://doi.org/10.1007/978-3-642-14295-6_34">10.1007/978-3-642-14295-6_34</a>.
  short: K. Chatterjee, T.A. Henzinger, B. Jobstmann, R. Singh, in:, Springer, 2010,
    pp. 380–395.
conference:
  end_date: 2010-07-19
  location: Edinburgh, United Kingdom
  name: 'CAV: Computer Aided Verification'
  start_date: 201-07-15
date_created: 2018-12-11T12:05:35Z
date_published: 2010-07-09T00:00:00Z
date_updated: 2023-02-23T10:17:28Z
day: '09'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1007/978-3-642-14295-6_34
intvolume: '      6174'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1004.0739
month: '07'
oa: 1
oa_version: Preprint
page: 380 - 395
publication_status: published
publisher: Springer
publist_id: '2313'
quality_controlled: '1'
related_material:
  record:
  - id: '1856'
    relation: later_version
    status: public
scopus_import: 1
status: public
title: Measuring and synthesizing systems in probabilistic environments
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6174
year: '2010'
...
---
_id: '3865'
abstract:
- lang: eng
  text: We introduce a technique for debugging multi-threaded C programs and analyzing
    the impact of source code changes, and its implementation in the prototype tool
    DIRECT. Our approach uses a combination of source code instrumentation and runtime
    management. The source code along with a test harness is instrumented to monitor
    Operating System (OS) and user defined function calls. DIRECT tracks all concurrency
    control primitives and, optionally, data from the program. DIRECT maintains an
    abstract global state that combines information from every thread, including the
    sequence of function calls and concurrency primitives executed. The runtime manager
    can insert delays, provoking thread inter-leavings that may exhibit bugs that
    are difficult to reach otherwise. The runtime manager collects an approximation
    of the reachable state space and uses this approximation to assess the impact
    of change in a new version of the program.
alternative_title:
- LNCS
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Luca
  full_name: De Alfaro, Luca
  last_name: De Alfaro
- first_name: Vishwanath
  full_name: Raman, Vishwanath
  last_name: Raman
- first_name: César
  full_name: Sánchez, César
  last_name: Sánchez
citation:
  ama: 'Chatterjee K, De Alfaro L, Raman V, Sánchez C. Analyzing the impact of change
    in multi-threaded programs. In: Rosenblum D, Taenzer G, eds. Vol 6013. Springer;
    2010:293-307. doi:<a href="https://doi.org/10.1007/978-3-642-12029-9_21">10.1007/978-3-642-12029-9_21</a>'
  apa: 'Chatterjee, K., De Alfaro, L., Raman, V., &#38; Sánchez, C. (2010). Analyzing
    the impact of change in multi-threaded programs. In D. Rosenblum &#38; G. Taenzer
    (Eds.) (Vol. 6013, pp. 293–307). Presented at the FASE: Fundamental Approaches
    To Software Engineering, Paphos, Cyprus: Springer. <a href="https://doi.org/10.1007/978-3-642-12029-9_21">https://doi.org/10.1007/978-3-642-12029-9_21</a>'
  chicago: Chatterjee, Krishnendu, Luca De Alfaro, Vishwanath Raman, and César Sánchez.
    “Analyzing the Impact of Change in Multi-Threaded Programs.” edited by David Rosenblum
    and Gabriele Taenzer, 6013:293–307. Springer, 2010. <a href="https://doi.org/10.1007/978-3-642-12029-9_21">https://doi.org/10.1007/978-3-642-12029-9_21</a>.
  ieee: 'K. Chatterjee, L. De Alfaro, V. Raman, and C. Sánchez, “Analyzing the impact
    of change in multi-threaded programs,” presented at the FASE: Fundamental Approaches
    To Software Engineering, Paphos, Cyprus, 2010, vol. 6013, pp. 293–307.'
  ista: 'Chatterjee K, De Alfaro L, Raman V, Sánchez C. 2010. Analyzing the impact
    of change in multi-threaded programs. FASE: Fundamental Approaches To Software
    Engineering, LNCS, vol. 6013, 293–307.'
  mla: Chatterjee, Krishnendu, et al. <i>Analyzing the Impact of Change in Multi-Threaded
    Programs</i>. Edited by David Rosenblum and Gabriele Taenzer, vol. 6013, Springer,
    2010, pp. 293–307, doi:<a href="https://doi.org/10.1007/978-3-642-12029-9_21">10.1007/978-3-642-12029-9_21</a>.
  short: K. Chatterjee, L. De Alfaro, V. Raman, C. Sánchez, in:, D. Rosenblum, G.
    Taenzer (Eds.), Springer, 2010, pp. 293–307.
conference:
  end_date: 2010-03-28
  location: Paphos, Cyprus
  name: 'FASE: Fundamental Approaches To Software Engineering'
  start_date: 2010-03-20
date_created: 2018-12-11T12:05:35Z
date_published: 2010-04-21T00:00:00Z
date_updated: 2021-01-12T07:52:47Z
day: '21'
department:
- _id: KrCh
doi: 10.1007/978-3-642-12029-9_21
editor:
- first_name: David
  full_name: Rosenblum, David
  last_name: Rosenblum
- first_name: Gabriele
  full_name: Taenzer, Gabriele
  last_name: Taenzer
intvolume: '      6013'
language:
- iso: eng
month: '04'
oa_version: None
page: 293 - 307
publication_status: published
publisher: Springer
publist_id: '2315'
quality_controlled: '1'
scopus_import: 1
status: public
title: Analyzing the impact of change in multi-threaded programs
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 6013
year: '2010'
...
---
_id: '3866'
abstract:
- lang: eng
  text: Systems ought to behave reasonably even in circumstances that are not anticipated
    in their specifications. We propose a definition of robustness for liveness specifications
    which prescribes, for any number of environment assumptions that are violated,
    a minimal number of system guarantees that must still be fulfilled. This notion
    of robustness can be formulated and realized using a Generalized Reactivity formula.
    We present an algorithm for synthesizing robust systems from such formulas. For
    the important special case of Generalized Reactivity formulas of rank 1, our algorithm
    improves the complexity of [PPS06] for large specifications with a small number
    of assumptions and guarantees.
alternative_title:
- LNCS
author:
- first_name: Roderick
  full_name: Bloem, Roderick
  last_name: Bloem
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Karin
  full_name: Greimel, Karin
  last_name: Greimel
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Barbara
  full_name: Jobstmann, Barbara
  last_name: Jobstmann
citation:
  ama: 'Bloem R, Chatterjee K, Greimel K, Henzinger TA, Jobstmann B. Robustness in
    the presence of liveness. In: Touili T, Cook B, Jackson P, eds. Vol 6174. Springer;
    2010:410-424. doi:<a href="https://doi.org/10.1007/978-3-642-14295-6_36">10.1007/978-3-642-14295-6_36</a>'
  apa: 'Bloem, R., Chatterjee, K., Greimel, K., Henzinger, T. A., &#38; Jobstmann,
    B. (2010). Robustness in the presence of liveness. In T. Touili, B. Cook, &#38;
    P. Jackson (Eds.) (Vol. 6174, pp. 410–424). Presented at the CAV: Computer Aided
    Verification, Edinburgh, UK: Springer. <a href="https://doi.org/10.1007/978-3-642-14295-6_36">https://doi.org/10.1007/978-3-642-14295-6_36</a>'
  chicago: Bloem, Roderick, Krishnendu Chatterjee, Karin Greimel, Thomas A Henzinger,
    and Barbara Jobstmann. “Robustness in the Presence of Liveness.” edited by Tayssir
    Touili, Byron Cook, and Paul Jackson, 6174:410–24. Springer, 2010. <a href="https://doi.org/10.1007/978-3-642-14295-6_36">https://doi.org/10.1007/978-3-642-14295-6_36</a>.
  ieee: 'R. Bloem, K. Chatterjee, K. Greimel, T. A. Henzinger, and B. Jobstmann, “Robustness
    in the presence of liveness,” presented at the CAV: Computer Aided Verification,
    Edinburgh, UK, 2010, vol. 6174, pp. 410–424.'
  ista: 'Bloem R, Chatterjee K, Greimel K, Henzinger TA, Jobstmann B. 2010. Robustness
    in the presence of liveness. CAV: Computer Aided Verification, LNCS, vol. 6174,
    410–424.'
  mla: Bloem, Roderick, et al. <i>Robustness in the Presence of Liveness</i>. Edited
    by Tayssir Touili et al., vol. 6174, Springer, 2010, pp. 410–24, doi:<a href="https://doi.org/10.1007/978-3-642-14295-6_36">10.1007/978-3-642-14295-6_36</a>.
  short: R. Bloem, K. Chatterjee, K. Greimel, T.A. Henzinger, B. Jobstmann, in:, T.
    Touili, B. Cook, P. Jackson (Eds.), Springer, 2010, pp. 410–424.
conference:
  end_date: 2010-07-19
  location: Edinburgh, UK
  name: 'CAV: Computer Aided Verification'
  start_date: 2010-07-15
date_created: 2018-12-11T12:05:36Z
date_published: 2010-07-01T00:00:00Z
date_updated: 2021-01-12T07:52:47Z
day: '01'
ddc:
- '004'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1007/978-3-642-14295-6_36
ec_funded: 1
editor:
- first_name: Tayssir
  full_name: Touili, Tayssir
  last_name: Touili
- first_name: Byron
  full_name: Cook, Byron
  last_name: Cook
- first_name: Paul
  full_name: Jackson, Paul
  last_name: Jackson
file:
- access_level: open_access
  checksum: 9d204611c8d7855bed8134f8708a0010
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:16:52Z
  date_updated: 2020-07-14T12:46:19Z
  file_id: '5243'
  file_name: IST-2012-54-v1+1_Robustness_in_the_presence_of_liveness.pdf
  file_size: 213083
  relation: main_file
file_date_updated: 2020-07-14T12:46:19Z
has_accepted_license: '1'
intvolume: '      6174'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 410 - 424
project:
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '215543'
  name: COMponent-Based Embedded Systems design Techniques
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '214373'
  name: Design for Embedded Systems
publication_status: published
publisher: Springer
publist_id: '2310'
pubrep_id: '54'
quality_controlled: '1'
scopus_import: 1
status: public
title: Robustness in the presence of liveness
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 6174
year: '2010'
...
