---
_id: '5387'
abstract:
- lang: eng
  text: We consider Markov Decision Processes (MDPs) with mean-payoff parity and energy
    parity objectives. In system design, the parity objective is used to encode ω-regular
    specifications, and the mean-payoff and energy objectives can be used to model
    quantitative resource constraints. The energy condition re- quires that the resource
    level never drops below 0, and the mean-payoff condi- tion requires that the limit-average
    value of the resource consumption is within a threshold. While these two (energy
    and mean-payoff) classical conditions are equivalent for two-player games, we
    show that they differ for MDPs. We show that the problem of deciding whether a
    state is almost-sure winning (i.e., winning with probability 1) in energy parity
    MDPs is in NP ∩ coNP, while for mean- payoff parity MDPs, the problem is solvable
    in polynomial time, improving a recent PSPACE bound.
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>Energy and Mean-Payoff Parity Markov Decision Processes</i>.
    IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0001">10.15479/AT:IST-2011-0001</a>
  apa: Chatterjee, K., &#38; Doyen, L. (2011). <i>Energy and mean-payoff parity Markov
    decision processes</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0001">https://doi.org/10.15479/AT:IST-2011-0001</a>
  chicago: Chatterjee, Krishnendu, and Laurent Doyen. <i>Energy and Mean-Payoff Parity
    Markov Decision Processes</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0001">https://doi.org/10.15479/AT:IST-2011-0001</a>.
  ieee: K. Chatterjee and L. Doyen, <i>Energy and mean-payoff parity Markov decision
    processes</i>. IST Austria, 2011.
  ista: Chatterjee K, Doyen L. 2011. Energy and mean-payoff parity Markov decision
    processes, IST Austria, 20p.
  mla: Chatterjee, Krishnendu, and Laurent Doyen. <i>Energy and Mean-Payoff Parity
    Markov Decision Processes</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0001">10.15479/AT:IST-2011-0001</a>.
  short: K. Chatterjee, L. Doyen, Energy and Mean-Payoff Parity Markov Decision Processes,
    IST Austria, 2011.
date_created: 2018-12-12T11:39:02Z
date_published: 2011-02-16T00:00:00Z
date_updated: 2023-02-23T11:23:11Z
day: '16'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0001
file:
- access_level: open_access
  checksum: 824d6c70e6d3feb3e836b009e0b3cf73
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:52:57Z
  date_updated: 2020-07-14T12:46:41Z
  file_id: '5458'
  file_name: IST-2011-0001_IST-2011-0001.pdf
  file_size: 329976
  relation: main_file
file_date_updated: 2020-07-14T12:46:41Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '20'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '23'
related_material:
  record:
  - id: '3345'
    relation: later_version
    status: public
status: public
title: Energy and mean-payoff parity Markov decision processes
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5379'
abstract:
- lang: eng
  text: Computing the winning set for Büchi objectives in alternating games on graphs
    is a central problem in computer aided verification with a large number of applications.
    The long standing best known upper bound for solving the problem is ̃O(n·m), where
    n is the number of vertices and m is the number of edges in the graph. We are
    the first to break the ̃O(n·m) boundary by presenting a new technique that reduces
    the running time to O(n2). This bound also leads to O(n2) time algorithms for
    computing the set of almost-sure winning vertices for Büchi objectives (1) in
    alternating games with probabilistic transitions (improving an earlier bound of
    O(n·m)), (2) in concurrent graph games with constant actions (improving an earlier
    bound of O(n3)), and (3) in Markov decision processes (improving for m > n4/3
    an earlier bound of O(min(m1.5, m·n2/3)). We also show that the same technique
    can be used to compute the maximal end-component decomposition of a graph in time
    O(n2), which is an improvement over earlier bounds for m > n4/3. Finally, we show
    how to maintain the winning set for Büchi objectives in alternating games under
    a sequence of edge insertions or a sequence of edge deletions in O(n) amortized
    time per operation. This is the first dynamic algorithm for this problem.
alternative_title:
- IST Austria Technical Report
article_processing_charge: No
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
citation:
  ama: Chatterjee K, Henzinger MH. <i>An O(N2) Time Algorithm for Alternating Büchi
    Games</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0009">10.15479/AT:IST-2011-0009</a>
  apa: Chatterjee, K., &#38; Henzinger, M. H. (2011). <i>An O(n2) time algorithm for
    alternating Büchi games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0009">https://doi.org/10.15479/AT:IST-2011-0009</a>
  chicago: Chatterjee, Krishnendu, and Monika H Henzinger. <i>An O(N2) Time Algorithm
    for Alternating Büchi Games</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0009">https://doi.org/10.15479/AT:IST-2011-0009</a>.
  ieee: K. Chatterjee and M. H. Henzinger, <i>An O(n2) time algorithm for alternating
    Büchi games</i>. IST Austria, 2011.
  ista: Chatterjee K, Henzinger MH. 2011. An O(n2) time algorithm for alternating
    Büchi games, IST Austria, 20p.
  mla: Chatterjee, Krishnendu, and Monika H. Henzinger. <i>An O(N2) Time Algorithm
    for Alternating Büchi Games</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0009">10.15479/AT:IST-2011-0009</a>.
  short: K. Chatterjee, M.H. Henzinger, An O(N2) Time Algorithm for Alternating Büchi
    Games, IST Austria, 2011.
date_created: 2018-12-12T11:38:59Z
date_published: 2011-07-11T00:00:00Z
date_updated: 2023-02-23T11:15:12Z
day: '11'
ddc:
- '000'
- '004'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0009
file:
- access_level: open_access
  checksum: 0b354264229045d982332fd2cb5b9a26
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:43Z
  date_updated: 2020-07-14T12:46:39Z
  file_id: '5504'
  file_name: IST-2011-0009_IST-2011-0009.pdf
  file_size: 388665
  relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '20'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '15'
related_material:
  record:
  - id: '3165'
    relation: later_version
    status: public
status: public
title: An O(n2) time algorithm for alternating Büchi games
type: technical_report
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2011'
...
---
_id: '5380'
abstract:
- lang: eng
  text: 'We consider 2-player games played on a finite state space for an infinite
    number 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 the successor state. We study concurrent games
    with ω-regular winning conditions specified as parity objectives.  We consider
    the qualitative analysis problems: the computation of the almost-sure and limit-sure
    winning set of states, where player 1 can ensure to win with probability 1 and
    with probability arbitrarily close to 1, respectively. In general the almost-sure
    and limit-sure winning strategies require both infinite-memory as well as infinite-precision
    (to describe probabilities). We study the bounded-rationality problem for qualitative
    analysis of concurrent parity games, where the strategy set for player 1 is restricted
    to bounded-resource strategies.  In terms of precision, strategies can be deterministic,
    uniform, finite-precision or infinite-precision;  and in terms of memory, strategies
    can be memoryless, finite-memory or infinite-memory. We present a precise and
    complete characterization of the qualitative winning sets for all combinations
    of classes of strategies. In particular, we show that uniform memoryless strategies
    are as powerful as finite-precision infinite-memory strategies, and infinite-precision
    memoryless strategies are as powerful as infinite-precision finite-memory strategies.  We
    show that the winning sets can be computed in O(n2d+3) time, where n is the size
    of the game structure and 2d is the number of priorities (or colors), and our
    algorithms are symbolic. The membership problem of whether a state belongs to
    a winning set can be decided in NP ∩ coNP. While this complexity is the same as
    for the simpler class of turn-based parity games, where in each state only one
    of the two players has a choice of moves, our algorithms,that are obtained by
    characterization of the winning sets as μ-calculus formulas, are considerably
    more involved than those for turn-based games.'
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>Bounded Rationality in Concurrent Parity Games</i>. IST Austria;
    2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0008">10.15479/AT:IST-2011-0008</a>
  apa: Chatterjee, K. (2011). <i>Bounded rationality in concurrent parity games</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0008">https://doi.org/10.15479/AT:IST-2011-0008</a>
  chicago: Chatterjee, Krishnendu. <i>Bounded Rationality in Concurrent Parity Games</i>.
    IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0008">https://doi.org/10.15479/AT:IST-2011-0008</a>.
  ieee: K. Chatterjee, <i>Bounded rationality in concurrent parity games</i>. IST
    Austria, 2011.
  ista: Chatterjee K. 2011. Bounded rationality in concurrent parity games, IST Austria,
    53p.
  mla: Chatterjee, Krishnendu. <i>Bounded Rationality in Concurrent Parity Games</i>.
    IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0008">10.15479/AT:IST-2011-0008</a>.
  short: K. Chatterjee, Bounded Rationality in Concurrent Parity Games, IST Austria,
    2011.
date_created: 2018-12-12T11:39:00Z
date_published: 2011-07-11T00:00:00Z
date_updated: 2023-02-23T11:22:53Z
day: '11'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0008
file:
- access_level: open_access
  checksum: 0fd38186409be819a911c4990fa79d1f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:22Z
  date_updated: 2020-07-14T12:46:39Z
  file_id: '5544'
  file_name: IST-2011-0008_IST-2011-0008.pdf
  file_size: 500399
  relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '53'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '16'
related_material:
  record:
  - id: '3338'
    relation: later_version
    status: public
status: public
title: Bounded rationality in concurrent parity games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5381'
abstract:
- lang: eng
  text: "In two-player finite-state stochastic games of partial obser- vation on graphs,
    in every state of the graph, the players simultaneously choose an action, and
    their joint actions determine a probability distri- bution over the successor
    states. The game is played for infinitely many rounds and thus the players construct
    an infinite path in the graph. We consider reachability objectives where the first
    player tries to ensure a target state to be visited almost-surely (i.e., with
    probability 1) or pos- itively (i.e., with positive probability), no matter the
    strategy of the second player.\r\n\r\nWe classify such games according to the
    information and to the power of randomization available to the players. On the
    basis of information, the game can be one-sided with either (a) player 1, or (b)
    player 2 having partial observation (and the other player has perfect observation),
    or two- sided with (c) both players having partial observation. On the basis of
    randomization, (a) the players may not be allowed to use randomization (pure strategies),
    or (b) they may choose a probability distribution over actions but the actual
    random choice is external and not visible to the player (actions invisible), or
    (c) they may use full randomization.\r\n\r\nOur main results for pure strategies
    are as follows: (1) For one-sided games with player 2 perfect observation we show
    that (in contrast to full randomized strategies) belief-based (subset-construction
    based) strate- gies are not sufficient, and present an exponential upper bound
    on mem- ory both for almost-sure and positive winning strategies; we show that
    the problem of deciding the existence of almost-sure and positive winning strategies
    for player 1 is EXPTIME-complete and present symbolic algo- rithms that avoid
    the explicit exponential construction. (2) For one-sided games with player 1 perfect
    observation we show that non-elementary memory is both necessary and sufficient
    for both almost-sure and posi- tive winning strategies. (3) We show that for the
    general (two-sided) case finite-memory strategies are sufficient for both positive
    and almost-sure winning, and at least non-elementary memory is required. We establish
    the equivalence of the almost-sure winning problems for pure strategies and for
    randomized strategies with actions invisible. Our equivalence re- sult exhibit
    serious flaws in previous results in the literature: we show a non-elementary
    memory lower bound for almost-sure winning whereas an exponential upper bound
    was previously claimed."
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>Partial-Observation Stochastic Games: How to Win
    When Belief Fails</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0007">10.15479/AT:IST-2011-0007</a>'
  apa: 'Chatterjee, K., &#38; Doyen, L. (2011). <i>Partial-observation stochastic
    games: How to win when belief fails</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0007">https://doi.org/10.15479/AT:IST-2011-0007</a>'
  chicago: 'Chatterjee, Krishnendu, and Laurent Doyen. <i>Partial-Observation Stochastic
    Games: How to Win When Belief Fails</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0007">https://doi.org/10.15479/AT:IST-2011-0007</a>.'
  ieee: 'K. Chatterjee and L. Doyen, <i>Partial-observation stochastic games: How
    to win when belief fails</i>. IST Austria, 2011.'
  ista: 'Chatterjee K, Doyen L. 2011. Partial-observation stochastic games: How to
    win when belief fails, IST Austria, 43p.'
  mla: 'Chatterjee, Krishnendu, and Laurent Doyen. <i>Partial-Observation Stochastic
    Games: How to Win When Belief Fails</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0007">10.15479/AT:IST-2011-0007</a>.'
  short: 'K. Chatterjee, L. Doyen, Partial-Observation Stochastic Games: How to Win
    When Belief Fails, IST Austria, 2011.'
date_created: 2018-12-12T11:39:00Z
date_published: 2011-07-05T00:00:00Z
date_updated: 2023-02-23T11:05:48Z
day: '05'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0007
file:
- access_level: open_access
  checksum: 06bf6dfc97f6006e3fd0e9a3f31bc961
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:27Z
  date_updated: 2020-07-14T12:46:39Z
  file_id: '5488'
  file_name: IST-2011-0007_IST-2011-0007.pdf
  file_size: 574055
  relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '43'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '17'
related_material:
  record:
  - id: '1903'
    relation: later_version
    status: public
  - id: '2211'
    relation: later_version
    status: public
  - id: '2955'
    relation: later_version
    status: public
status: public
title: 'Partial-observation stochastic games: How to win when belief fails'
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_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: '5383'
abstract:
- lang: eng
  text: We present a new decidable logic called TREX for expressing constraints about
    imperative tree data structures. In particular, TREX supports a transitive closure
    operator that can express reachability constraints, which often appear in data
    structure invariants. We show that our logic is closed under weakest precondition
    computation, which enables its use for automated software verification. We further
    show that satisfiability of formulas in TREX is decidable in NP. The low complexity
    makes it an attractive alternative to more expensive logics such as monadic second-order
    logic (MSOL) over trees, which have been traditionally used for reasoning about
    tree data structures.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Thomas
  full_name: Wies, Thomas
  id: 447BFB88-F248-11E8-B48F-1D18A9856A87
  last_name: Wies
- first_name: Marco
  full_name: Muñiz, Marco
  last_name: Muñiz
- first_name: Viktor
  full_name: Kuncak, Viktor
  last_name: Kuncak
citation:
  ama: Wies T, Muñiz M, Kuncak V. <i>On an Efficient Decision Procedure for Imperative
    Tree Data Structures</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0005">10.15479/AT:IST-2011-0005</a>
  apa: Wies, T., Muñiz, M., &#38; Kuncak, V. (2011). <i>On an efficient decision procedure
    for imperative tree data structures</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0005">https://doi.org/10.15479/AT:IST-2011-0005</a>
  chicago: Wies, Thomas, Marco Muñiz, and Viktor Kuncak. <i>On an Efficient Decision
    Procedure for Imperative Tree Data Structures</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0005">https://doi.org/10.15479/AT:IST-2011-0005</a>.
  ieee: T. Wies, M. Muñiz, and V. Kuncak, <i>On an efficient decision procedure for
    imperative tree data structures</i>. IST Austria, 2011.
  ista: Wies T, Muñiz M, Kuncak V. 2011. On an efficient decision procedure for imperative
    tree data structures, IST Austria, 25p.
  mla: Wies, Thomas, et al. <i>On an Efficient Decision Procedure for Imperative Tree
    Data Structures</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0005">10.15479/AT:IST-2011-0005</a>.
  short: T. Wies, M. Muñiz, V. Kuncak, On an Efficient Decision Procedure for Imperative
    Tree Data Structures, IST Austria, 2011.
date_created: 2018-12-12T11:39:01Z
date_published: 2011-04-26T00:00:00Z
date_updated: 2023-02-23T11:22:16Z
day: '26'
ddc:
- '000'
- '006'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2011-0005
file:
- access_level: open_access
  checksum: b20029184c4a819c5f4466a4a3d238b5
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:01Z
  date_updated: 2020-07-14T12:46:40Z
  file_id: '5462'
  file_name: IST-2011-0005_IST-2011-0005.pdf
  file_size: 619053
  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: '25'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '19'
related_material:
  record:
  - id: '3323'
    relation: later_version
    status: public
status: public
title: On an efficient decision procedure for imperative tree data structures
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: '5386'
abstract:
- lang: eng
  text: 'We introduce TopoCut: a new way to integrate knowledge about topological
    properties (TPs) into random field image segmentation model. Instead of including
    TPs as additional constraints during minimization of the energy function, we devise
    an efficient algorithm for modifying the unary potentials such that the resulting
    segmentation is guaranteed with the desired properties. Our method is more flexible
    in the sense that it handles more topology constraints than previous methods,
    which were only able to enforce pairwise or global connectivity. In particular,
    our method is very fast, making it for the first time possible to enforce global
    topological properties in practical image segmentation tasks.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Daniel
  full_name: Freedman, Daniel
  last_name: Freedman
- first_name: Christoph
  full_name: Lampert, Christoph
  id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
  last_name: Lampert
  orcid: 0000-0001-8622-7887
citation:
  ama: Chen C, Freedman D, Lampert C. <i>Enforcing Topological Constraints in Random
    Field Image Segmentation</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0002">10.15479/AT:IST-2011-0002</a>
  apa: Chen, C., Freedman, D., &#38; Lampert, C. (2011). <i>Enforcing topological
    constraints in random field image segmentation</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0002">https://doi.org/10.15479/AT:IST-2011-0002</a>
  chicago: Chen, Chao, Daniel Freedman, and Christoph Lampert. <i>Enforcing Topological
    Constraints in Random Field Image Segmentation</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0002">https://doi.org/10.15479/AT:IST-2011-0002</a>.
  ieee: C. Chen, D. Freedman, and C. Lampert, <i>Enforcing topological constraints
    in random field image segmentation</i>. IST Austria, 2011.
  ista: Chen C, Freedman D, Lampert C. 2011. Enforcing topological constraints in
    random field image segmentation, IST Austria, 69p.
  mla: Chen, Chao, et al. <i>Enforcing Topological Constraints in Random Field Image
    Segmentation</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0002">10.15479/AT:IST-2011-0002</a>.
  short: C. Chen, D. Freedman, C. Lampert, Enforcing Topological Constraints in Random
    Field Image Segmentation, IST Austria, 2011.
date_created: 2018-12-12T11:39:02Z
date_published: 2011-03-28T00:00:00Z
date_updated: 2023-02-23T11:22:48Z
day: '28'
ddc:
- '000'
department:
- _id: ChLa
doi: 10.15479/AT:IST-2011-0002
file:
- access_level: open_access
  checksum: ad64c2add5fe2ad10e9d5c669f3f9526
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:34Z
  date_updated: 2020-07-14T12:46:41Z
  file_id: '5495'
  file_name: IST-2011-0002_IST-2011-0002.pdf
  file_size: 26390601
  relation: main_file
file_date_updated: 2020-07-14T12:46:41Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: '69'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '22'
related_material:
  record:
  - id: '3336'
    relation: later_version
    status: public
status: public
title: Enforcing topological constraints in random field image segmentation
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: '5389'
abstract:
- lang: eng
  text: Boolean notions of correctness are formalized by preorders on systems. Quantitative
    measures of correctness can be formalized by real-valued distance functions between
    systems, where the distance between implementation and specification provides
    a measure of “fit” or “desirability.” We extend the simulation preorder to the
    quantitative setting, by making each player of a simulation game pay a certain
    price for her choices. We use the resulting games with quantitative objectives
    to define three different simulation distances. The correctness distance measures
    how much the specification must be changed in order to be satisfied by the implementation.
    The coverage distance measures how much the im- plementation restricts the degrees
    of freedom offered by the specification. The robustness distance measures how
    much a system can deviate from the implementation description without violating
    the specification. We consider these distances for safety as well as liveness
    specifications. The distances can be computed in polynomial time for safety specifications,
    and for liveness specifications given by weak fairness constraints. We show that
    the distance functions satisfy the triangle inequality, that the distance between
    two systems does not increase under parallel composition with a third system,
    and that the distance between two systems can be bounded from above and below
    by distances between abstractions of the two systems. These properties suggest
    that our simulation distances provide an appropriate basis for a quantitative
    theory of discrete systems. We also demonstrate how the robustness distance can
    be used to measure how many transmission errors are tolerated by error correcting
    codes.
alternative_title:
- IST Austria Technical Report
author:
- 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
citation:
  ama: Cerny P, Henzinger TA, Radhakrishna A. <i>Simulation Distances</i>. IST Austria;
    2010. doi:<a href="https://doi.org/10.15479/AT:IST-2010-0003">10.15479/AT:IST-2010-0003</a>
  apa: Cerny, P., Henzinger, T. A., &#38; Radhakrishna, A. (2010). <i>Simulation distances</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2010-0003">https://doi.org/10.15479/AT:IST-2010-0003</a>
  chicago: Cerny, Pavol, Thomas A Henzinger, and Arjun Radhakrishna. <i>Simulation
    Distances</i>. IST Austria, 2010. <a href="https://doi.org/10.15479/AT:IST-2010-0003">https://doi.org/10.15479/AT:IST-2010-0003</a>.
  ieee: P. Cerny, T. A. Henzinger, and A. Radhakrishna, <i>Simulation distances</i>.
    IST Austria, 2010.
  ista: Cerny P, Henzinger TA, Radhakrishna A. 2010. Simulation distances, IST Austria,
    24p.
  mla: Cerny, Pavol, et al. <i>Simulation Distances</i>. IST Austria, 2010, doi:<a
    href="https://doi.org/10.15479/AT:IST-2010-0003">10.15479/AT:IST-2010-0003</a>.
  short: P. Cerny, T.A. Henzinger, A. Radhakrishna, Simulation Distances, IST Austria,
    2010.
date_created: 2018-12-12T11:39:03Z
date_published: 2010-06-04T00:00:00Z
date_updated: 2023-02-23T12:09:16Z
day: '04'
ddc:
- '005'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2010-0003
file:
- access_level: open_access
  checksum: 284ded99764e32a583a8ea83fcea254b
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:25Z
  date_updated: 2020-07-14T12:46:42Z
  file_id: '5547'
  file_name: IST-2010-0003_IST-2010-0003.pdf
  file_size: 367246
  relation: main_file
file_date_updated: 2020-07-14T12:46:42Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '24'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '25'
related_material:
  record:
  - id: '3249'
    relation: later_version
    status: public
  - id: '4393'
    relation: later_version
    status: public
status: public
title: Simulation distances
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: '5391'
abstract:
- lang: eng
  text: Concurrent data structures with fine-grained synchronization are notoriously
    difficult to implement correctly. The difficulty of reasoning about these implementations
    does not stem from the number of variables or the program size, but rather from
    the large number of possible interleavings. These implementations are therefore
    prime candidates for model checking. We introduce an algorithm for verifying linearizability
    of singly-linked heap-based concurrent data structures. We consider a model consisting
    of an unbounded heap where each node consists an element from an unbounded data
    domain, with a restricted set of operations for testing and updating pointers
    and data elements. Our main result is that linearizability is decidable for programs
    that invoke a fixed number of methods, possibly in parallel. This decidable fragment
    covers many of the common implementation techniques — fine-grained locking, lazy
    synchronization, and lock-free synchronization. We also show how the technique
    can be used to verify optimistic implementations with the help of programmer annotations.
    We developed a verification tool CoLT and evaluated it on a representative sample
    of Java implementations of the concurrent set data structure. The tool verified
    linearizability of a number of implementations, found a known error in a lock-free
    imple- mentation and proved that the corrected version is linearizable.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Pavol
  full_name: Cerny, Pavol
  id: 4DCBEFFE-F248-11E8-B48F-1D18A9856A87
  last_name: Cerny
- first_name: Arjun
  full_name: Radhakrishna, Arjun
  id: 3B51CAC4-F248-11E8-B48F-1D18A9856A87
  last_name: Radhakrishna
- first_name: Damien
  full_name: Zufferey, Damien
  id: 4397AC76-F248-11E8-B48F-1D18A9856A87
  last_name: Zufferey
  orcid: 0000-0002-3197-8736
- first_name: Swarat
  full_name: Chaudhuri, Swarat
  last_name: Chaudhuri
- first_name: Rajeev
  full_name: Alur, Rajeev
  last_name: Alur
citation:
  ama: Cerny P, Radhakrishna A, Zufferey D, Chaudhuri S, Alur R. <i>Model Checking
    of Linearizability of Concurrent List Implementations</i>. IST Austria; 2010.
    doi:<a href="https://doi.org/10.15479/AT:IST-2010-0001">10.15479/AT:IST-2010-0001</a>
  apa: Cerny, P., Radhakrishna, A., Zufferey, D., Chaudhuri, S., &#38; Alur, R. (2010).
    <i>Model checking of linearizability of concurrent list implementations</i>. IST
    Austria. <a href="https://doi.org/10.15479/AT:IST-2010-0001">https://doi.org/10.15479/AT:IST-2010-0001</a>
  chicago: Cerny, Pavol, Arjun Radhakrishna, Damien Zufferey, Swarat Chaudhuri, and
    Rajeev Alur. <i>Model Checking of Linearizability of Concurrent List Implementations</i>.
    IST Austria, 2010. <a href="https://doi.org/10.15479/AT:IST-2010-0001">https://doi.org/10.15479/AT:IST-2010-0001</a>.
  ieee: P. Cerny, A. Radhakrishna, D. Zufferey, S. Chaudhuri, and R. Alur, <i>Model
    checking of linearizability of concurrent list implementations</i>. IST Austria,
    2010.
  ista: Cerny P, Radhakrishna A, Zufferey D, Chaudhuri S, Alur R. 2010. Model checking
    of linearizability of concurrent list implementations, IST Austria, 27p.
  mla: Cerny, Pavol, et al. <i>Model Checking of Linearizability of Concurrent List
    Implementations</i>. IST Austria, 2010, doi:<a href="https://doi.org/10.15479/AT:IST-2010-0001">10.15479/AT:IST-2010-0001</a>.
  short: P. Cerny, A. Radhakrishna, D. Zufferey, S. Chaudhuri, R. Alur, Model Checking
    of Linearizability of Concurrent List Implementations, IST Austria, 2010.
date_created: 2018-12-12T11:39:04Z
date_published: 2010-04-19T00:00:00Z
date_updated: 2023-02-23T12:09:09Z
day: '19'
ddc:
- '004'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2010-0001
file:
- access_level: open_access
  checksum: 986645caad7dd85a6a091488f6c646dc
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:44Z
  date_updated: 2020-07-14T12:46:43Z
  file_id: '5505'
  file_name: IST-2010-0001_IST-2010-0001.pdf
  file_size: 372286
  relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
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: '27'
related_material:
  record:
  - id: '4390'
    relation: later_version
    status: public
status: public
title: Model checking of linearizability of concurrent list implementations
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2010'
...
---
_id: '5392'
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 of [GO09] and present a precise characterization of the decidability
    and undecidability frontier of the quantitative and qualitative decision problems.
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>Probabilistic Automata on Infinite Words: Decidability and
    Undecidability Results</i>. IST Austria; 2009. doi:<a href="https://doi.org/10.15479/AT:IST-2009-0004">10.15479/AT:IST-2009-0004</a>'
  apa: 'Chatterjee, K. (2009). <i>Probabilistic automata on infinite words: Decidability
    and undecidability results</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2009-0004">https://doi.org/10.15479/AT:IST-2009-0004</a>'
  chicago: 'Chatterjee, Krishnendu. <i>Probabilistic Automata on Infinite Words: Decidability
    and Undecidability Results</i>. IST Austria, 2009. <a href="https://doi.org/10.15479/AT:IST-2009-0004">https://doi.org/10.15479/AT:IST-2009-0004</a>.'
  ieee: 'K. Chatterjee, <i>Probabilistic automata on infinite words: Decidability
    and undecidability results</i>. IST Austria, 2009.'
  ista: 'Chatterjee K. 2009. Probabilistic automata on infinite words: Decidability
    and undecidability results, IST Austria, 17p.'
  mla: 'Chatterjee, Krishnendu. <i>Probabilistic Automata on Infinite Words: Decidability
    and Undecidability Results</i>. IST Austria, 2009, doi:<a href="https://doi.org/10.15479/AT:IST-2009-0004">10.15479/AT:IST-2009-0004</a>.'
  short: 'K. Chatterjee, Probabilistic Automata on Infinite Words: Decidability and
    Undecidability Results, IST Austria, 2009.'
date_created: 2018-12-12T11:39:04Z
date_published: 2009-11-02T00:00:00Z
date_updated: 2023-02-23T11:45:44Z
day: '02'
ddc:
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2009-0004
file:
- access_level: open_access
  checksum: fb7563150231325b00b1718d956f687b
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:08Z
  date_updated: 2020-07-14T12:46:43Z
  file_id: '5530'
  file_name: IST-2009-0004_IST-2009-0004.pdf
  file_size: 311065
  relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: '17'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '28'
related_material:
  record:
  - id: '3857'
    relation: later_version
    status: public
status: public
title: 'Probabilistic automata on infinite words: Decidability and undecidability
  results'
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2009'
...
---
_id: '5393'
abstract:
- lang: eng
  text: Gist is a tool that (a) solves the qualitative analysis problem of turn-based
    probabilistic games with ω-regular objectives; and (b) synthesizes reasonable
    environment assumptions for synthesis of unrealizable specifications. Our tool
    provides efficient implementations of several reduction based techniques to solve
    turn-based probabilistic games, and uses the analysis of turn-based probabilistic
    games for synthesizing environment assumptions for unrealizable specifications.
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: Barbara
  full_name: Jobstmann, Barbara
  last_name: Jobstmann
- first_name: Arjun
  full_name: Radhakrishna, Arjun
  id: 3B51CAC4-F248-11E8-B48F-1D18A9856A87
  last_name: Radhakrishna
citation:
  ama: 'Chatterjee K, Henzinger TA, Jobstmann B, Radhakrishna A. <i>Gist: A Solver
    for Probabilistic Games</i>. IST Austria; 2009. doi:<a href="https://doi.org/10.15479/AT:IST-2009-0003">10.15479/AT:IST-2009-0003</a>'
  apa: 'Chatterjee, K., Henzinger, T. A., Jobstmann, B., &#38; Radhakrishna, A. (2009).
    <i>Gist: A solver for probabilistic games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2009-0003">https://doi.org/10.15479/AT:IST-2009-0003</a>'
  chicago: 'Chatterjee, Krishnendu, Thomas A Henzinger, Barbara Jobstmann, and Arjun
    Radhakrishna. <i>Gist: A Solver for Probabilistic Games</i>. IST Austria, 2009.
    <a href="https://doi.org/10.15479/AT:IST-2009-0003">https://doi.org/10.15479/AT:IST-2009-0003</a>.'
  ieee: 'K. Chatterjee, T. A. Henzinger, B. Jobstmann, and A. Radhakrishna, <i>Gist:
    A solver for probabilistic games</i>. IST Austria, 2009.'
  ista: 'Chatterjee K, Henzinger TA, Jobstmann B, Radhakrishna A. 2009. Gist: A solver
    for probabilistic games, IST Austria, 12p.'
  mla: 'Chatterjee, Krishnendu, et al. <i>Gist: A Solver for Probabilistic Games</i>.
    IST Austria, 2009, doi:<a href="https://doi.org/10.15479/AT:IST-2009-0003">10.15479/AT:IST-2009-0003</a>.'
  short: 'K. Chatterjee, T.A. Henzinger, B. Jobstmann, A. Radhakrishna, Gist: A Solver
    for Probabilistic Games, IST Austria, 2009.'
date_created: 2018-12-12T11:39:05Z
date_published: 2009-10-09T00:00:00Z
date_updated: 2023-02-23T12:09:01Z
day: '09'
ddc:
- '000'
- '005'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2009-0003
file:
- access_level: open_access
  checksum: 49551ac552915b17593a14c993845274
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:52:58Z
  date_updated: 2020-07-14T12:46:43Z
  file_id: '5459'
  file_name: IST-2009-0003_IST-2009-0003.pdf
  file_size: 386866
  relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: '12'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '29'
related_material:
  record:
  - id: '4388'
    relation: later_version
    status: public
status: public
title: 'Gist: A solver for probabilistic games'
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2009'
...
---
_id: '5394'
abstract:
- lang: eng
  text: We consider two-player games played on graphs with request-response and finitary
    Streett objectives. We show these games are PSPACE-hard, improving the previous
    known NP-hardness. We also improve the lower bounds on memory required by the
    winning strategies for the players.
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: Florian
  full_name: Horn, Florian
  id: 37327ACE-F248-11E8-B48F-1D18A9856A87
  last_name: Horn
citation:
  ama: Chatterjee K, Henzinger TA, Horn F. <i>Improved Lower Bounds for Request-Response
    and Finitary Streett Games</i>. IST Austria; 2009. doi:<a href="https://doi.org/10.15479/AT:IST-2009-0002">10.15479/AT:IST-2009-0002</a>
  apa: Chatterjee, K., Henzinger, T. A., &#38; Horn, F. (2009). <i>Improved lower
    bounds for request-response and finitary Streett games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2009-0002">https://doi.org/10.15479/AT:IST-2009-0002</a>
  chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Florian Horn. <i>Improved
    Lower Bounds for Request-Response and Finitary Streett Games</i>. IST Austria,
    2009. <a href="https://doi.org/10.15479/AT:IST-2009-0002">https://doi.org/10.15479/AT:IST-2009-0002</a>.
  ieee: K. Chatterjee, T. A. Henzinger, and F. Horn, <i>Improved lower bounds for
    request-response and finitary Streett games</i>. IST Austria, 2009.
  ista: Chatterjee K, Henzinger TA, Horn F. 2009. Improved lower bounds for request-response
    and finitary Streett games, IST Austria, 11p.
  mla: Chatterjee, Krishnendu, et al. <i>Improved Lower Bounds for Request-Response
    and Finitary Streett Games</i>. IST Austria, 2009, doi:<a href="https://doi.org/10.15479/AT:IST-2009-0002">10.15479/AT:IST-2009-0002</a>.
  short: K. Chatterjee, T.A. Henzinger, F. Horn, Improved Lower Bounds for Request-Response
    and Finitary Streett Games, IST Austria, 2009.
date_created: 2018-12-12T11:39:05Z
date_published: 2009-09-09T00:00:00Z
date_updated: 2020-07-14T23:07:47Z
day: '09'
ddc:
- '004'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2009-0002
file:
- access_level: open_access
  checksum: 1c50a9723fbae1b2c46d18138968efb3
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:50Z
  date_updated: 2020-07-14T12:46:43Z
  file_id: '5511'
  file_name: IST-2009-0002_IST-2009-0002.pdf
  file_size: 238091
  relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '11'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '30'
status: public
title: Improved lower bounds for request-response and finitary Streett games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2009'
...
---
_id: '5395'
abstract:
- lang: eng
  text: 'We study observation-based strategies for partially-observable Markov decision
    processes (POMDPs) with omega-regular objectives. An observation-based strategy
    relies on partial information about the history of a play, namely, on the past
    sequence of observa- tions. We consider the qualitative analysis problem: given
    a POMDP with an omega-regular objective, whether there is 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 of POMDPs with parity objectives (a canonical form to express omega-regular
    objectives) and its subclasses. Our contribution consists in establishing several
    upper and lower bounds that were not known in literature. Second, we present optimal
    bounds (matching upper and lower bounds) on the memory required by pure and randomized
    observation-based strategies for the qualitative analysis of POMDPs with parity
    objectives and its subclasses.'
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
- 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. <i>Qualitative Analysis of Partially-Observable
    Markov Decision Processes</i>. IST Austria; 2009. doi:<a href="https://doi.org/10.15479/AT:IST-2009-0001">10.15479/AT:IST-2009-0001</a>
  apa: Chatterjee, K., Doyen, L., &#38; Henzinger, T. A. (2009). <i>Qualitative analysis
    of partially-observable Markov decision processes</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2009-0001">https://doi.org/10.15479/AT:IST-2009-0001</a>
  chicago: Chatterjee, Krishnendu, Laurent Doyen, and Thomas A Henzinger. <i>Qualitative
    Analysis of Partially-Observable Markov Decision Processes</i>. IST Austria, 2009.
    <a href="https://doi.org/10.15479/AT:IST-2009-0001">https://doi.org/10.15479/AT:IST-2009-0001</a>.
  ieee: K. Chatterjee, L. Doyen, and T. A. Henzinger, <i>Qualitative analysis of partially-observable
    Markov decision processes</i>. IST Austria, 2009.
  ista: Chatterjee K, Doyen L, Henzinger TA. 2009. Qualitative analysis of partially-observable
    Markov decision processes, IST Austria, 20p.
  mla: Chatterjee, Krishnendu, et al. <i>Qualitative Analysis of Partially-Observable
    Markov Decision Processes</i>. IST Austria, 2009, doi:<a href="https://doi.org/10.15479/AT:IST-2009-0001">10.15479/AT:IST-2009-0001</a>.
  short: K. Chatterjee, L. Doyen, T.A. Henzinger, Qualitative Analysis of Partially-Observable
    Markov Decision Processes, IST Austria, 2009.
date_created: 2018-12-12T11:39:05Z
date_published: 2009-09-09T00:00:00Z
date_updated: 2023-02-23T11:45:39Z
day: '09'
ddc:
- '005'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2009-0001
file:
- access_level: open_access
  checksum: 04d9cc065cc19598a4e8631c47f1a562
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:25Z
  date_updated: 2020-07-14T12:46:43Z
  file_id: '5486'
  file_name: IST-2009-0001_IST-2009-0001.pdf
  file_size: 342088
  relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '20'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '31'
related_material:
  record:
  - id: '3855'
    relation: later_version
    status: public
status: public
title: Qualitative analysis of partially-observable Markov decision processes
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2009'
...
