---
_id: '5400'
abstract:
- lang: eng
  text: We consider partially observable Markov decision processes (POMDPs) with ω-regular
    conditions specified as parity objectives. The class of ω-regular languages extends
    regular languages to infinite strings and provides a robust specification language
    to express all properties used in verification, and parity objectives are canonical
    forms to express ω-regular conditions. The qualitative analysis problem given
    a POMDP and a parity objective asks whether there is a strategy to ensure that
    the objective is satis- fied with probability 1 (resp. positive probability).
    While the qualitative analysis problems are known to be undecidable even for very
    special cases of parity objectives, we establish decidability (with optimal complexity)
    of the qualitative analysis problems for POMDPs with all parity objectives under
    finite- memory strategies. We establish asymptotically optimal (exponential) memory
    bounds and EXPTIME- completeness of the qualitative analysis problems under finite-memory
    strategies for POMDPs with parity objectives.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Martin
  full_name: Chmelik, Martin
  id: 3624234E-F248-11E8-B48F-1D18A9856A87
  last_name: Chmelik
- first_name: Mathieu
  full_name: Tracol, Mathieu
  id: 3F54FA38-F248-11E8-B48F-1D18A9856A87
  last_name: Tracol
citation:
  ama: Chatterjee K, Chmelik M, Tracol M. <i>What Is Decidable about Partially Observable
    Markov Decision Processes with ω-Regular Objectives</i>. IST Austria; 2013. doi:<a
    href="https://doi.org/10.15479/AT:IST-2013-109-v1-1">10.15479/AT:IST-2013-109-v1-1</a>
  apa: Chatterjee, K., Chmelik, M., &#38; Tracol, M. (2013). <i>What is decidable
    about partially observable Markov decision processes with ω-regular objectives</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2013-109-v1-1">https://doi.org/10.15479/AT:IST-2013-109-v1-1</a>
  chicago: Chatterjee, Krishnendu, Martin Chmelik, and Mathieu Tracol. <i>What Is
    Decidable about Partially Observable Markov Decision Processes with ω-Regular
    Objectives</i>. IST Austria, 2013. <a href="https://doi.org/10.15479/AT:IST-2013-109-v1-1">https://doi.org/10.15479/AT:IST-2013-109-v1-1</a>.
  ieee: K. Chatterjee, M. Chmelik, and M. Tracol, <i>What is decidable about partially
    observable Markov decision processes with ω-regular objectives</i>. IST Austria,
    2013.
  ista: Chatterjee K, Chmelik M, Tracol M. 2013. What is decidable about partially
    observable Markov decision processes with ω-regular objectives, IST Austria, 41p.
  mla: Chatterjee, Krishnendu, et al. <i>What Is Decidable about Partially Observable
    Markov Decision Processes with ω-Regular Objectives</i>. IST Austria, 2013, doi:<a
    href="https://doi.org/10.15479/AT:IST-2013-109-v1-1">10.15479/AT:IST-2013-109-v1-1</a>.
  short: K. Chatterjee, M. Chmelik, M. Tracol, What Is Decidable about Partially Observable
    Markov Decision Processes with ω-Regular Objectives, IST Austria, 2013.
date_created: 2018-12-12T11:39:07Z
date_published: 2013-02-20T00:00:00Z
date_updated: 2023-02-23T10:36:45Z
day: '20'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-109-v1-1
file:
- access_level: open_access
  checksum: cbba40210788a1b22c6cf06433b5ed6f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:06Z
  date_updated: 2020-07-14T12:46:44Z
  file_id: '5467'
  file_name: IST-2013-109-v1+1_What_is_Decidable_about_Partially_Observable_Markov_Decision_Processes_with_ω-Regular_Objectives.pdf
  file_size: 483407
  relation: main_file
file_date_updated: 2020-07-14T12:46:44Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '41'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '109'
related_material:
  record:
  - id: '1477'
    relation: later_version
    status: public
  - id: '2295'
    relation: later_version
    status: public
status: public
title: What is decidable about partially observable Markov decision processes with
  ω-regular objectives
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5401'
abstract:
- lang: eng
  text: This document is created as a part of the project “Repository for Research
    Data at IST Austria”. It summarises the actual initiatives, projects and standards
    related to the project. It supports the preparation of standards and specifications
    for the project, which should be considered and followed to ensure interoperability
    and visibility of the uploaded data.
author:
- first_name: Jana
  full_name: Porsche, Jana
  id: 3252EDC2-F248-11E8-B48F-1D18A9856A87
  last_name: Porsche
citation:
  ama: Porsche J. <i>Initiatives and Projects Related to RD</i>. IST Austria; 2013.
  apa: Porsche, J. (2013). <i>Initiatives and projects related to RD</i>. IST Austria.
  chicago: Porsche, Jana. <i>Initiatives and Projects Related to RD</i>. IST Austria,
    2013.
  ieee: J. Porsche, <i>Initiatives and projects related to RD</i>. IST Austria, 2013.
  ista: Porsche J. 2013. Initiatives and projects related to RD, IST Austria,p.
  mla: Porsche, Jana. <i>Initiatives and Projects Related to RD</i>. IST Austria,
    2013.
  short: J. Porsche, Initiatives and Projects Related to RD, IST Austria, 2013.
date_created: 2018-12-12T11:39:07Z
date_published: 2013-03-20T00:00:00Z
date_updated: 2020-07-14T23:04:47Z
day: '20'
ddc:
- '020'
department:
- _id: E-Lib
file:
- access_level: open_access
  checksum: d68712db838432ecdacf9ffb1de8f8a6
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:14Z
  date_updated: 2020-07-14T12:46:45Z
  file_id: '5536'
  file_name: IST-2013-113-v1+1_Initiatives_and_projects_related_to_RD.pdf
  file_size: 151208
  relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
publication_status: published
publisher: IST Austria
pubrep_id: '113'
status: public
title: Initiatives and projects related to RD
type: report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5402'
abstract:
- lang: eng
  text: "Linearizability requires that the outcome of calls by competing threads to
    a concurrent data structure is the same as some sequential execution where each
    thread has exclusive access to the data structure. In an ordered data structure,
    such as a queue or a stack, linearizability is ensured by requiring threads commit
    in the order dictated by the sequential semantics of the data structure; e.g.,
    in a concurrent queue implementation a dequeue can only remove the oldest element.
    \r\nIn this paper, we investigate the impact of this strict ordering, by comparing
    what linearizability allows to what existing implementations do. We first give
    an operational definition for linearizability which allows us to build the most
    general linearizable implementation as a transition system for any given sequential
    specification. We then use this operational definition to categorize linearizable
    implementations based on whether they are bound or free. In a bound implementation,
    whenever all threads observe the same logical state, the updates to the logical
    state and the temporal order of commits coincide. All existing queue implementations
    we know of are bound. We then proceed to present, to the best of our knowledge,
    the first ever free queue implementation. Our experiments show that free implementations
    have the potential for better performance by suffering less from contention."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Ali
  full_name: Sezgin, Ali
  id: 4C7638DA-F248-11E8-B48F-1D18A9856A87
  last_name: Sezgin
citation:
  ama: Henzinger TA, Sezgin A. <i>How Free Is Your Linearizable Concurrent Data Structure?</i>
    IST Austria; 2013. doi:<a href="https://doi.org/10.15479/AT:IST-2013-123-v1-1">10.15479/AT:IST-2013-123-v1-1</a>
  apa: Henzinger, T. A., &#38; Sezgin, A. (2013). <i>How free is your linearizable
    concurrent data structure?</i> IST Austria. <a href="https://doi.org/10.15479/AT:IST-2013-123-v1-1">https://doi.org/10.15479/AT:IST-2013-123-v1-1</a>
  chicago: Henzinger, Thomas A, and Ali Sezgin. <i>How Free Is Your Linearizable Concurrent
    Data Structure?</i> IST Austria, 2013. <a href="https://doi.org/10.15479/AT:IST-2013-123-v1-1">https://doi.org/10.15479/AT:IST-2013-123-v1-1</a>.
  ieee: T. A. Henzinger and A. Sezgin, <i>How free is your linearizable concurrent
    data structure?</i> IST Austria, 2013.
  ista: Henzinger TA, Sezgin A. 2013. How free is your linearizable concurrent data
    structure?, IST Austria, 16p.
  mla: Henzinger, Thomas A., and Ali Sezgin. <i>How Free Is Your Linearizable Concurrent
    Data Structure?</i> IST Austria, 2013, doi:<a href="https://doi.org/10.15479/AT:IST-2013-123-v1-1">10.15479/AT:IST-2013-123-v1-1</a>.
  short: T.A. Henzinger, A. Sezgin, How Free Is Your Linearizable Concurrent Data
    Structure?, IST Austria, 2013.
date_created: 2018-12-12T11:39:07Z
date_published: 2013-06-12T00:00:00Z
date_updated: 2020-07-14T23:04:47Z
day: '12'
ddc:
- '000'
- '004'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2013-123-v1-1
file:
- access_level: open_access
  checksum: ce580605ae9756a8c99d7b403ebb8eed
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:19Z
  date_updated: 2020-07-14T12:46:45Z
  file_id: '5480'
  file_name: IST-2013-123-v1+1_main-concur2013.pdf
  file_size: 249790
  relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '16'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '123'
status: public
title: How free is your linearizable concurrent data structure?
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5403'
abstract:
- lang: eng
  text: 'We consider concurrent games played by two-players on a finite state graph,
    where in every round the players simultaneously choose a move, and the current
    state along with the joint moves determine the successor state. We study the most
    fundamental objective for concurrent games, namely, mean-payoff or limit-average
    objective, where a reward is associated to every transition, and the goal of player
    1 is to maximize the long-run average of the rewards, and the objective of player
    2 is strictly the opposite (i.e., the games are zero-sum). The path constraint
    for player 1 could be qualitative, i.e., the mean-payoff is the maximal reward,
    or arbitrarily close to it; or quantitative, i.e., a given threshold between the
    minimal and maximal reward. We consider the computation of the almost-sure (resp.
    positive) winning sets, where player 1 can ensure that the path constraint is
    satisfied with probability 1 (resp. positive probability). Almost-sure winning
    with qualitative constraint exactly corresponds to the question whether there
    exists a strategy to ensure that the payoff is the maximal reward of the game.
    Our main results for qualitative path constraints are as follows: (1) we establish
    qualitative determinacy results that show for every state either player 1 has
    a strategy to ensure almost-sure (resp. positive) winning against all player-2
    strategies or player 2 has a spoiling strategy to falsify almost-sure (resp. positive)
    winning against all player-1 strategies; (2) we present optimal strategy complexity
    results that precisely characterize the classes of strategies required for almost-sure
    and positive winning for both players; and (3) we present quadratic time algorithms
    to compute the almost-sure and the positive winning sets, matching the best known
    bound of the algorithms for much simpler problems (such as reachability objectives).
    For quantitative constraints we show that a polynomial time solution for the almost-sure
    or the positive winning set would imply a solution to a long-standing open problem
    (of solving the value problem of mean-payoff games) that is not known to be in
    polynomial time.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
citation:
  ama: Chatterjee K, Ibsen-Jensen R. <i>Qualitative Analysis of Concurrent Mean-Payoff
    Games</i>. IST Austria; 2013. doi:<a href="https://doi.org/10.15479/AT:IST-2013-126-v1-1">10.15479/AT:IST-2013-126-v1-1</a>
  apa: Chatterjee, K., &#38; Ibsen-Jensen, R. (2013). <i>Qualitative analysis of concurrent
    mean-payoff games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2013-126-v1-1">https://doi.org/10.15479/AT:IST-2013-126-v1-1</a>
  chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. <i>Qualitative Analysis
    of Concurrent Mean-Payoff Games</i>. IST Austria, 2013. <a href="https://doi.org/10.15479/AT:IST-2013-126-v1-1">https://doi.org/10.15479/AT:IST-2013-126-v1-1</a>.
  ieee: K. Chatterjee and R. Ibsen-Jensen, <i>Qualitative analysis of concurrent mean-payoff
    games</i>. IST Austria, 2013.
  ista: Chatterjee K, Ibsen-Jensen R. 2013. Qualitative analysis of concurrent mean-payoff
    games, IST Austria, 33p.
  mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. <i>Qualitative Analysis of
    Concurrent Mean-Payoff Games</i>. IST Austria, 2013, doi:<a href="https://doi.org/10.15479/AT:IST-2013-126-v1-1">10.15479/AT:IST-2013-126-v1-1</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, Qualitative Analysis of Concurrent Mean-Payoff
    Games, IST Austria, 2013.
date_created: 2018-12-12T11:39:08Z
date_published: 2013-07-03T00:00:00Z
date_updated: 2023-02-23T12:22:53Z
day: '03'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-126-v1-1
file:
- access_level: open_access
  checksum: 063868c665beec37bf28160e2a695746
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:49Z
  date_updated: 2020-07-14T12:46:45Z
  file_id: '5510'
  file_name: IST-2013-126-v1+1_soda_full.pdf
  file_size: 434523
  relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '33'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '126'
related_material:
  record:
  - id: '524'
    relation: later_version
    status: public
status: public
title: Qualitative analysis of concurrent mean-payoff games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5404'
abstract:
- lang: eng
  text: 'We study finite-state two-player (zero-sum) concurrent mean-payoff games
    played on a graph. We focus on the important sub-class of ergodic games where
    all states are visited infinitely often with probability 1. The algorithmic study
    of ergodic games was initiated in a seminal work of Hoffman and Karp in 1966,
    but all basic complexity questions have remained unresolved. Our main results
    for ergodic games are as follows: We establish (1) an optimal exponential bound
    on the patience of stationary strategies (where patience of a distribution is
    the inverse of the smallest positive probability and represents a complexity measure
    of a stationary strategy); (2) the approximation problem lie in FNP; (3) the approximation
    problem is at least as hard as the decision problem for simple stochastic games
    (for which NP and coNP is the long-standing best known bound). We show that the
    exact value can be expressed in the existential theory of the reals, and also
    establish square-root sum hardness for a related class of 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
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
citation:
  ama: Chatterjee K, Ibsen-Jensen R. <i>The Complexity of Ergodic Games</i>. IST Austria;
    2013. doi:<a href="https://doi.org/10.15479/AT:IST-2013-127-v1-1">10.15479/AT:IST-2013-127-v1-1</a>
  apa: Chatterjee, K., &#38; Ibsen-Jensen, R. (2013). <i>The complexity of ergodic
    games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2013-127-v1-1">https://doi.org/10.15479/AT:IST-2013-127-v1-1</a>
  chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. <i>The Complexity of Ergodic
    Games</i>. IST Austria, 2013. <a href="https://doi.org/10.15479/AT:IST-2013-127-v1-1">https://doi.org/10.15479/AT:IST-2013-127-v1-1</a>.
  ieee: K. Chatterjee and R. Ibsen-Jensen, <i>The complexity of ergodic games</i>.
    IST Austria, 2013.
  ista: Chatterjee K, Ibsen-Jensen R. 2013. The complexity of ergodic games, IST Austria,
    29p.
  mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. <i>The Complexity of Ergodic
    Games</i>. IST Austria, 2013, doi:<a href="https://doi.org/10.15479/AT:IST-2013-127-v1-1">10.15479/AT:IST-2013-127-v1-1</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, The Complexity of Ergodic Games, IST Austria,
    2013.
date_created: 2018-12-12T11:39:08Z
date_published: 2013-07-03T00:00:00Z
date_updated: 2023-02-23T10:30:55Z
day: '03'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-127-v1-1
file:
- access_level: open_access
  checksum: 79ee5e677a82611ce06e0360c69d494a
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:35Z
  date_updated: 2020-07-14T12:46:45Z
  file_id: '5496'
  file_name: IST-2013-127-v1+1_ergodic.pdf
  file_size: 517275
  relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '29'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '127'
related_material:
  record:
  - id: '2162'
    relation: later_version
    status: public
status: public
title: The complexity of ergodic games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5405'
abstract:
- lang: eng
  text: "The theory of graph games is the foundation for modeling and synthesizing
    reactive processes. In the synthesis of stochastic processes, we use 2-1/2-player
    games where some transitions of the game graph are controlled by two adversarial
    players, the System and the Environment, and the other transitions are determined
    probabilistically. We consider 2-1/2-player games where the objective of the System
    is the conjunction of a qualitative objective (specified as a parity condition)
    and a quantitative objective (specified as a mean-payoff condition). We establish
    that the problem of deciding whether the System can ensure that the probability
    to satisfy the mean-payoff parity objective is at least a given threshold is in
    NP ∩ coNP, matching the best known bound in the special case of 2-player games
    (where all transitions are deterministic) with only parity objectives, or with
    only mean-payoff objectives. We present an algorithm running\r\nin time O(d ·
    n^{2d}·MeanGame) to compute the set of almost-sure winning states from which the
    objective\r\ncan be ensured with probability 1, where n is the number of states
    of the game, d the number of priorities\r\nof the parity objective, and MeanGame
    is the complexity to compute the set of almost-sure winning states\r\nin 2-1/2-player
    mean-payoff games. Our results are useful in the synthesis of stochastic reactive
    systems\r\nwith both functional requirement (given as a qualitative objective)
    and performance requirement (given\r\nas a quantitative objective)."
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: Hugo
  full_name: Gimbert, Hugo
  last_name: Gimbert
- first_name: Youssouf
  full_name: Oualhadj, Youssouf
  last_name: Oualhadj
citation:
  ama: Chatterjee K, Doyen L, Gimbert H, Oualhadj Y. <i>Perfect-Information Stochastic
    Mean-Payoff Parity Games</i>. IST Austria; 2013. doi:<a href="https://doi.org/10.15479/AT:IST-2013-128-v1-1">10.15479/AT:IST-2013-128-v1-1</a>
  apa: Chatterjee, K., Doyen, L., Gimbert, H., &#38; Oualhadj, Y. (2013). <i>Perfect-information
    stochastic mean-payoff parity games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2013-128-v1-1">https://doi.org/10.15479/AT:IST-2013-128-v1-1</a>
  chicago: Chatterjee, Krishnendu, Laurent Doyen, Hugo Gimbert, and Youssouf Oualhadj.
    <i>Perfect-Information Stochastic Mean-Payoff Parity Games</i>. IST Austria, 2013.
    <a href="https://doi.org/10.15479/AT:IST-2013-128-v1-1">https://doi.org/10.15479/AT:IST-2013-128-v1-1</a>.
  ieee: K. Chatterjee, L. Doyen, H. Gimbert, and Y. Oualhadj, <i>Perfect-information
    stochastic mean-payoff parity games</i>. IST Austria, 2013.
  ista: Chatterjee K, Doyen L, Gimbert H, Oualhadj Y. 2013. Perfect-information stochastic
    mean-payoff parity games, IST Austria, 22p.
  mla: Chatterjee, Krishnendu, et al. <i>Perfect-Information Stochastic Mean-Payoff
    Parity Games</i>. IST Austria, 2013, doi:<a href="https://doi.org/10.15479/AT:IST-2013-128-v1-1">10.15479/AT:IST-2013-128-v1-1</a>.
  short: K. Chatterjee, L. Doyen, H. Gimbert, Y. Oualhadj, Perfect-Information Stochastic
    Mean-Payoff Parity Games, IST Austria, 2013.
date_created: 2018-12-12T11:39:09Z
date_published: 2013-07-08T00:00:00Z
date_updated: 2023-02-23T10:33:08Z
day: '08'
ddc:
- '000'
- '005'
- '510'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-128-v1-1
file:
- access_level: open_access
  checksum: ede787a10e74e4f7db302fab8f12f3ca
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:54Z
  date_updated: 2020-07-14T12:46:45Z
  file_id: '5516'
  file_name: IST-2013-128-v1+1_full_stoch_mpp.pdf
  file_size: 387467
  relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '22'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '128'
related_material:
  record:
  - id: '2212'
    relation: later_version
    status: public
status: public
title: Perfect-information stochastic mean-payoff parity games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5406'
abstract:
- lang: eng
  text: 'We consider the distributed synthesis problem fortemporal logic specifications.
    Traditionally, the problem has been studied for LTL, and the previous results
    show that the problem is decidable iff there is no information fork in the architecture.
    We consider the problem for fragments of LTLand our main results are as follows:
    (1) We show that the problem is undecidable for architectures with information
    forks even for the fragment of LTL with temporal operators restricted to next
    and eventually. (2) For specifications restricted to globally along with non-nested
    next operators, we establish decidability (in EXPSPACE) for star architectures
    where the processes receive disjoint inputs, whereas we establish undecidability
    for architectures containing an information fork-meet structure. (3)Finally, we
    consider LTL without the next operator, and establish decidability (NEXPTIME-complete)
    for all architectures for a fragment that consists of a set of safety assumptions,
    and a set of guarantees where each guarantee is a safety, reachability, or liveness
    condition.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Jan
  full_name: Otop, Jan
  id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
  last_name: Otop
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
citation:
  ama: Chatterjee K, Henzinger TA, Otop J, Pavlogiannis A. <i>Distributed Synthesis
    for LTL Fragments</i>. IST Austria; 2013. doi:<a href="https://doi.org/10.15479/AT:IST-2013-130-v1-1">10.15479/AT:IST-2013-130-v1-1</a>
  apa: Chatterjee, K., Henzinger, T. A., Otop, J., &#38; Pavlogiannis, A. (2013).
    <i>Distributed synthesis for LTL Fragments</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2013-130-v1-1">https://doi.org/10.15479/AT:IST-2013-130-v1-1</a>
  chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Jan Otop, and Andreas Pavlogiannis.
    <i>Distributed Synthesis for LTL Fragments</i>. IST Austria, 2013. <a href="https://doi.org/10.15479/AT:IST-2013-130-v1-1">https://doi.org/10.15479/AT:IST-2013-130-v1-1</a>.
  ieee: K. Chatterjee, T. A. Henzinger, J. Otop, and A. Pavlogiannis, <i>Distributed
    synthesis for LTL Fragments</i>. IST Austria, 2013.
  ista: Chatterjee K, Henzinger TA, Otop J, Pavlogiannis A. 2013. Distributed synthesis
    for LTL Fragments, IST Austria, 11p.
  mla: Chatterjee, Krishnendu, et al. <i>Distributed Synthesis for LTL Fragments</i>.
    IST Austria, 2013, doi:<a href="https://doi.org/10.15479/AT:IST-2013-130-v1-1">10.15479/AT:IST-2013-130-v1-1</a>.
  short: K. Chatterjee, T.A. Henzinger, J. Otop, A. Pavlogiannis, Distributed Synthesis
    for LTL Fragments, IST Austria, 2013.
date_created: 2018-12-12T11:39:09Z
date_published: 2013-07-08T00:00:00Z
date_updated: 2023-02-21T17:01:26Z
day: '08'
ddc:
- '005'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2013-130-v1-1
file:
- access_level: open_access
  checksum: 855513ebaf6f72228800c5fdb522f93c
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:18Z
  date_updated: 2020-07-14T12:46:45Z
  file_id: '5540'
  file_name: IST-2013-130-v1+1_Distributed_Synthesis.pdf
  file_size: 467895
  relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '11'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '130'
related_material:
  record:
  - id: '1376'
    relation: later_version
    status: public
status: public
title: Distributed synthesis for LTL Fragments
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5407'
abstract:
- lang: eng
  text: This document is created as a part of the project “Repository for Research
    Data at IST Austria”. It summarises the mandatory features, which need to be fulfilled
    to provide an institutional repository as a platform and also a service to the
    scientists at the institute. It also includes optional features, which would be
    of strong benefit for the scientists and would increase the usage of the repository,
    and hence the visibility of research at IST Austria.
author:
- first_name: Jana
  full_name: Porsche, Jana
  id: 3252EDC2-F248-11E8-B48F-1D18A9856A87
  last_name: Porsche
citation:
  ama: Porsche J. <i>Technical Requirements and Features</i>. IST Austria; 2013.
  apa: Porsche, J. (2013). <i>Technical requirements and features</i>. IST Austria.
  chicago: Porsche, Jana. <i>Technical Requirements and Features</i>. IST Austria,
    2013.
  ieee: J. Porsche, <i>Technical requirements and features</i>. IST Austria, 2013.
  ista: Porsche J. 2013. Technical requirements and features, IST Austria,p.
  mla: Porsche, Jana. <i>Technical Requirements and Features</i>. IST Austria, 2013.
  short: J. Porsche, Technical Requirements and Features, IST Austria, 2013.
date_created: 2018-12-12T11:39:09Z
date_published: 2013-07-13T00:00:00Z
date_updated: 2020-07-14T23:07:51Z
day: '13'
ddc:
- '020'
department:
- _id: E-Lib
file:
- access_level: open_access
  checksum: 9e4f9abf79a56f651f0012a34909880f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:02Z
  date_updated: 2020-07-14T12:46:46Z
  file_id: '5463'
  file_name: IST-2013-135-v1+1_Features.pdf
  file_size: 90311
  relation: main_file
file_date_updated: 2020-07-14T12:46:46Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication_status: published
publisher: IST Austria
pubrep_id: '135'
status: public
title: Technical requirements and features
type: report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5408'
abstract:
- lang: eng
  text: "We consider two-player partial-observation stochastic games where player
    1 has partial observation and player 2 has perfect observation. The winning condition
    we study are omega-regular conditions specified as parity objectives. The qualitative
    analysis problem given a partial-observation stochastic game and a parity objective
    asks whether  there is a strategy to ensure that the objective is satisfied with
    probability 1 (resp. positive probability). While the qualitative analysis problems
    are known to be undecidable even for very special cases of parity objectives,
    they were shown to be decidable in 2EXPTIME under finite-memory  strategies. We
    improve the complexity and show that the qualitative analysis problems for partial-observation
    stochastic parity games under finite-memory strategies are \r\nEXPTIME-complete;
    and also establish optimal (exponential) memory bounds for finite-memory strategies
    required for qualitative analysis. "
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: Sumit
  full_name: Nain, Sumit
  last_name: Nain
- first_name: Moshe
  full_name: Vardi, Moshe
  last_name: Vardi
citation:
  ama: Chatterjee K, Doyen L, Nain S, Vardi M. <i>The Complexity of Partial-Observation
    Stochastic Parity Games with Finite-Memory Strategies</i>. IST Austria; 2013.
    doi:<a href="https://doi.org/10.15479/AT:IST-2013-141-v1-1">10.15479/AT:IST-2013-141-v1-1</a>
  apa: Chatterjee, K., Doyen, L., Nain, S., &#38; Vardi, M. (2013). <i>The complexity
    of partial-observation stochastic parity games with finite-memory strategies</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2013-141-v1-1">https://doi.org/10.15479/AT:IST-2013-141-v1-1</a>
  chicago: Chatterjee, Krishnendu, Laurent Doyen, Sumit Nain, and Moshe Vardi. <i>The
    Complexity of Partial-Observation Stochastic Parity Games with Finite-Memory Strategies</i>.
    IST Austria, 2013. <a href="https://doi.org/10.15479/AT:IST-2013-141-v1-1">https://doi.org/10.15479/AT:IST-2013-141-v1-1</a>.
  ieee: K. Chatterjee, L. Doyen, S. Nain, and M. Vardi, <i>The complexity of partial-observation
    stochastic parity games with finite-memory strategies</i>. IST Austria, 2013.
  ista: Chatterjee K, Doyen L, Nain S, Vardi M. 2013. The complexity of partial-observation
    stochastic parity games with finite-memory strategies, IST Austria, 17p.
  mla: Chatterjee, Krishnendu, et al. <i>The Complexity of Partial-Observation Stochastic
    Parity Games with Finite-Memory Strategies</i>. IST Austria, 2013, doi:<a href="https://doi.org/10.15479/AT:IST-2013-141-v1-1">10.15479/AT:IST-2013-141-v1-1</a>.
  short: K. Chatterjee, L. Doyen, S. Nain, M. Vardi, The Complexity of Partial-Observation
    Stochastic Parity Games with Finite-Memory Strategies, IST Austria, 2013.
date_created: 2018-12-12T11:39:10Z
date_published: 2013-09-12T00:00:00Z
date_updated: 2023-02-23T10:33:11Z
day: '12'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-141-v1-1
file:
- access_level: open_access
  checksum: 226bc791124f8d3138379778ce834e86
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:16Z
  date_updated: 2020-07-14T12:46:46Z
  file_id: '5477'
  file_name: IST-2013-141-v1+1_main-tech-rpt.pdf
  file_size: 300481
  relation: main_file
file_date_updated: 2020-07-14T12:46:46Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '17'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '141'
related_material:
  record:
  - id: '2213'
    relation: later_version
    status: public
status: public
title: The complexity of partial-observation stochastic parity games with finite-memory
  strategies
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5409'
abstract:
- lang: eng
  text: "The edit distance between two (untimed) traces is the minimum cost of a sequence
    of edit operations (insertion, deletion, or substitution) needed to transform
    one trace to the other. Edit distances have been extensively studied in the untimed
    setting, and form the basis for approximate matching of sequences in different
    domains such as coding theory, parsing, and speech recognition. \r\nIn this paper,
    we lift the study of edit distances from untimed languages to the timed setting.
    We define an edit distance between timed words which incorporates both the edit
    distance between the untimed words and the absolute difference in timestamps.
    Our edit distance between two timed words is computable in polynomial time. Further,
    we show that the edit distance between a timed word and a timed language generated
    by a timed automaton, defined as the edit distance between the word and the closest
    word in the language, is PSPACE-complete. While computing the edit distance between
    two timed automata is undecidable, we show that the approximate version, where
    we decide if the edit distance between two timed automata is either less than
    a given parameter or more than delta away from the parameter, for delta>0, can
    be solved in exponential space and is EXPSPACE-hard. Our definitions and techniques
    can be generalized to the setting of hybrid systems, and we show analogous decidability
    results for rectangular automata."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Rupak
  full_name: Majumdar, Rupak
  last_name: Majumdar
citation:
  ama: Chatterjee K, Ibsen-Jensen R, Majumdar R. <i>Edit Distance for Timed Automata</i>.
    IST Austria; 2013. doi:<a href="https://doi.org/10.15479/AT:IST-2013-144-v1-1">10.15479/AT:IST-2013-144-v1-1</a>
  apa: Chatterjee, K., Ibsen-Jensen, R., &#38; Majumdar, R. (2013). <i>Edit distance
    for timed automata</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2013-144-v1-1">https://doi.org/10.15479/AT:IST-2013-144-v1-1</a>
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Rupak Majumdar. <i>Edit
    Distance for Timed Automata</i>. IST Austria, 2013. <a href="https://doi.org/10.15479/AT:IST-2013-144-v1-1">https://doi.org/10.15479/AT:IST-2013-144-v1-1</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, and R. Majumdar, <i>Edit distance for timed
    automata</i>. IST Austria, 2013.
  ista: Chatterjee K, Ibsen-Jensen R, Majumdar R. 2013. Edit distance for timed automata,
    IST Austria, 12p.
  mla: Chatterjee, Krishnendu, et al. <i>Edit Distance for Timed Automata</i>. IST
    Austria, 2013, doi:<a href="https://doi.org/10.15479/AT:IST-2013-144-v1-1">10.15479/AT:IST-2013-144-v1-1</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, R. Majumdar, Edit Distance for Timed Automata,
    IST Austria, 2013.
date_created: 2018-12-12T11:39:10Z
date_published: 2013-10-30T00:00:00Z
date_updated: 2023-02-23T10:33:18Z
day: '30'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-144-v1-1
file:
- access_level: open_access
  checksum: 0f7633081ba8299c543322f0ad08571f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:08Z
  date_updated: 2020-07-14T12:46:46Z
  file_id: '5469'
  file_name: IST-2013-144-v1+1_main.pdf
  file_size: 336377
  relation: main_file
file_date_updated: 2020-07-14T12:46:46Z
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: '144'
related_material:
  record:
  - id: '2216'
    relation: later_version
    status: public
status: public
title: Edit distance for timed automata
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5410'
abstract:
- lang: eng
  text: "Board games, like Tic-Tac-Toe and CONNECT-4, play an important role not only
    in development of mathematical and logical skills, but also in emotional and social
    development. In this paper, we address the problem of generating targeted starting
    positions for such games. This can facilitate new approaches for bringing novice
    players to mastery, and also leads to discovery of interesting game variants.
    \r\nOur approach generates starting states of varying hardness levels for player
    1 in a two-player board game, given rules of the board game, the desired number
    of steps required for player 1 to win, and the expertise levels of the two players.
    Our approach leverages symbolic methods and iterative simulation to efficiently
    search the extremely large state space. We present experimental results that include
    discovery of states of varying hardness levels for several simple grid-based board
    games. Also, the presence of such states for standard game variants like Tic-Tac-Toe
    on board size 4x4 opens up new games to be played that have not been played for
    ages since the default start state is heavily biased. "
alternative_title:
- IST Austria Technical Report
author:
- first_name: Umair
  full_name: Ahmed, Umair
  last_name: Ahmed
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Sumit
  full_name: Gulwani, Sumit
  last_name: Gulwani
citation:
  ama: Ahmed U, Chatterjee K, Gulwani S. <i>Automatic Generation of Alternative Starting
    Positions for Traditional Board Games</i>. IST Austria; 2013. doi:<a href="https://doi.org/10.15479/AT:IST-2013-146-v1-1">10.15479/AT:IST-2013-146-v1-1</a>
  apa: Ahmed, U., Chatterjee, K., &#38; Gulwani, S. (2013). <i>Automatic generation
    of alternative starting positions for traditional board games</i>. IST Austria.
    <a href="https://doi.org/10.15479/AT:IST-2013-146-v1-1">https://doi.org/10.15479/AT:IST-2013-146-v1-1</a>
  chicago: Ahmed, Umair, Krishnendu Chatterjee, and Sumit Gulwani. <i>Automatic Generation
    of Alternative Starting Positions for Traditional Board Games</i>. IST Austria,
    2013. <a href="https://doi.org/10.15479/AT:IST-2013-146-v1-1">https://doi.org/10.15479/AT:IST-2013-146-v1-1</a>.
  ieee: U. Ahmed, K. Chatterjee, and S. Gulwani, <i>Automatic generation of alternative
    starting positions for traditional board games</i>. IST Austria, 2013.
  ista: Ahmed U, Chatterjee K, Gulwani S. 2013. Automatic generation of alternative
    starting positions for traditional board games, IST Austria, 13p.
  mla: Ahmed, Umair, et al. <i>Automatic Generation of Alternative Starting Positions
    for Traditional Board Games</i>. IST Austria, 2013, doi:<a href="https://doi.org/10.15479/AT:IST-2013-146-v1-1">10.15479/AT:IST-2013-146-v1-1</a>.
  short: U. Ahmed, K. Chatterjee, S. Gulwani, Automatic Generation of Alternative
    Starting Positions for Traditional Board Games, IST Austria, 2013.
date_created: 2018-12-12T11:39:10Z
date_published: 2013-12-03T00:00:00Z
date_updated: 2023-02-23T10:00:50Z
day: '03'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-146-v1-1
file:
- access_level: open_access
  checksum: 409f3aaaf1184e4057b89cbb449dac80
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:06Z
  date_updated: 2020-07-14T12:46:46Z
  file_id: '5528'
  file_name: IST-2013-146-v1+1_main.pdf
  file_size: 818189
  relation: main_file
file_date_updated: 2020-07-14T12:46:46Z
has_accepted_license: '1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: '13'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '146'
related_material:
  record:
  - id: '1481'
    relation: later_version
    status: public
status: public
title: Automatic generation of alternative starting positions for traditional board
  games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5747'
article_processing_charge: No
author:
- first_name: Cezara
  full_name: Dragoi, Cezara
  id: 2B2B5ED0-F248-11E8-B48F-1D18A9856A87
  last_name: Dragoi
- first_name: Ashutosh
  full_name: Gupta, Ashutosh
  id: 335E5684-F248-11E8-B48F-1D18A9856A87
  last_name: Gupta
- 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: 'Dragoi C, Gupta A, Henzinger TA. Automatic Linearizability Proofs of Concurrent
    Objects with Cooperating Updates. In: <i>Computer Aided Verification</i>. Vol
    8044. CAV. Berlin, Heidelberg: Springer Berlin Heidelberg; 2013:174-190. doi:<a
    href="https://doi.org/10.1007/978-3-642-39799-8_11">10.1007/978-3-642-39799-8_11</a>'
  apa: 'Dragoi, C., Gupta, A., &#38; Henzinger, T. A. (2013). Automatic Linearizability
    Proofs of Concurrent Objects with Cooperating Updates. In <i>Computer Aided Verification</i>
    (Vol. 8044, pp. 174–190). Berlin, Heidelberg: Springer Berlin Heidelberg. <a href="https://doi.org/10.1007/978-3-642-39799-8_11">https://doi.org/10.1007/978-3-642-39799-8_11</a>'
  chicago: 'Dragoi, Cezara, Ashutosh Gupta, and Thomas A Henzinger. “Automatic Linearizability
    Proofs of Concurrent Objects with Cooperating Updates.” In <i>Computer Aided Verification</i>,
    8044:174–90. CAV. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. <a href="https://doi.org/10.1007/978-3-642-39799-8_11">https://doi.org/10.1007/978-3-642-39799-8_11</a>.'
  ieee: 'C. Dragoi, A. Gupta, and T. A. Henzinger, “Automatic Linearizability Proofs
    of Concurrent Objects with Cooperating Updates,” in <i>Computer Aided Verification</i>,
    vol. 8044, Berlin, Heidelberg: Springer Berlin Heidelberg, 2013, pp. 174–190.'
  ista: 'Dragoi C, Gupta A, Henzinger TA. 2013.Automatic Linearizability Proofs of
    Concurrent Objects with Cooperating Updates. In: Computer Aided Verification.
    vol. 8044, 174–190.'
  mla: Dragoi, Cezara, et al. “Automatic Linearizability Proofs of Concurrent Objects
    with Cooperating Updates.” <i>Computer Aided Verification</i>, vol. 8044, Springer
    Berlin Heidelberg, 2013, pp. 174–90, doi:<a href="https://doi.org/10.1007/978-3-642-39799-8_11">10.1007/978-3-642-39799-8_11</a>.
  short: C. Dragoi, A. Gupta, T.A. Henzinger, in:, Computer Aided Verification, Springer
    Berlin Heidelberg, Berlin, Heidelberg, 2013, pp. 174–190.
conference:
  end_date: 2013-07-19
  location: Saint Petersburg, Russia
  name: CAV 2013
  start_date: 2013-07-13
date_created: 2018-12-18T13:10:21Z
date_published: 2013-01-01T00:00:00Z
date_updated: 2023-09-05T14:16:07Z
ddc:
- '005'
department:
- _id: ToHe
doi: 10.1007/978-3-642-39799-8_11
ec_funded: 1
file:
- access_level: open_access
  checksum: a901cc6b71db08b61c0d4c0cbacc6287
  content_type: application/pdf
  creator: dernst
  date_created: 2018-12-18T13:13:33Z
  date_updated: 2020-07-14T12:47:10Z
  file_id: '5748'
  file_name: 2013_CAV_Dragoi.pdf
  file_size: 236480
  relation: main_file
file_date_updated: 2020-07-14T12:47:10Z
has_accepted_license: '1'
intvolume: '      8044'
language:
- iso: eng
oa: 1
oa_version: None
page: 174-190
place: Berlin, Heidelberg
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
publication: Computer Aided Verification
publication_identifier:
  eissn:
  - 1611-3349
  isbn:
  - '9783642397981'
  - '9783642397998'
  issn:
  - 0302-9743
publication_status: published
publisher: Springer Berlin Heidelberg
pubrep_id: '195'
quality_controlled: '1'
scopus_import: '1'
series_title: CAV
status: public
title: Automatic Linearizability Proofs of Concurrent Objects with Cooperating Updates
type: book_chapter
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 8044
year: '2013'
...
---
_id: '6440'
abstract:
- lang: eng
  text: In order to guarantee that each method of a data structure updates the logical
    state exactly once, al-most all non-blocking implementations employ Compare-And-Swap
    (CAS) based synchronization. For FIFO  queue  implementations  this  translates  into  concurrent  enqueue  or  dequeue  methods
    competing among themselves to update the same variable, the tail or the head,
    respectively, leading to high contention and poor scalability. Recent non-blocking
    queue implementations try to alleviate high contentionby increasing the number
    of contention points, all the while using CAS-based synchronization. Furthermore,
    obtaining a wait-free implementation with competition is achieved by additional
    synchronization which leads to further degradation of performance.In this paper
    we formalize the notion of competitiveness of a synchronizing statement which
    can beused as a measure for the scalability of concurrent implementations.  We
    present a new queue implementation, the Speculative Pairing (SP) queue, which,
    as we show, decreases competitiveness by using Fetch-And-Increment (FAI) instead
    of CAS. We prove that the SP queue is linearizable and lock-free.We also show
    that replacing CAS with FAI leads to wait-freedom for dequeue methods without
    an adverse effect on performance.  In fact, our experiments suggest that the SP
    queue can perform and scale better than the state-of-the-art queue implementations.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Hannes
  full_name: Payer, Hannes
  last_name: Payer
- first_name: Ali
  full_name: Sezgin, Ali
  id: 4C7638DA-F248-11E8-B48F-1D18A9856A87
  last_name: Sezgin
citation:
  ama: Henzinger TA, Payer H, Sezgin A. <i>Replacing Competition with Cooperation
    to Achieve Scalable Lock-Free FIFO Queues </i>. IST Austria; 2013. doi:<a href="https://doi.org/10.15479/AT:IST-2013-124-v1-1">10.15479/AT:IST-2013-124-v1-1</a>
  apa: Henzinger, T. A., Payer, H., &#38; Sezgin, A. (2013). <i>Replacing competition
    with cooperation to achieve scalable lock-free FIFO queues </i>. IST Austria.
    <a href="https://doi.org/10.15479/AT:IST-2013-124-v1-1">https://doi.org/10.15479/AT:IST-2013-124-v1-1</a>
  chicago: Henzinger, Thomas A, Hannes Payer, and Ali Sezgin. <i>Replacing Competition
    with Cooperation to Achieve Scalable Lock-Free FIFO Queues </i>. IST Austria,
    2013. <a href="https://doi.org/10.15479/AT:IST-2013-124-v1-1">https://doi.org/10.15479/AT:IST-2013-124-v1-1</a>.
  ieee: T. A. Henzinger, H. Payer, and A. Sezgin, <i>Replacing competition with cooperation
    to achieve scalable lock-free FIFO queues </i>. IST Austria, 2013.
  ista: Henzinger TA, Payer H, Sezgin A. 2013. Replacing competition with cooperation
    to achieve scalable lock-free FIFO queues , IST Austria, 23p.
  mla: Henzinger, Thomas A., et al. <i>Replacing Competition with Cooperation to Achieve
    Scalable Lock-Free FIFO Queues </i>. IST Austria, 2013, doi:<a href="https://doi.org/10.15479/AT:IST-2013-124-v1-1">10.15479/AT:IST-2013-124-v1-1</a>.
  short: T.A. Henzinger, H. Payer, A. Sezgin, Replacing Competition with Cooperation
    to Achieve Scalable Lock-Free FIFO Queues , IST Austria, 2013.
date_created: 2019-05-13T14:13:27Z
date_published: 2013-06-13T00:00:00Z
date_updated: 2020-07-14T23:06:19Z
day: '13'
ddc:
- '000'
- '005'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2013-124-v1-1
file:
- access_level: open_access
  checksum: a219ba4eada6cd62befed52262ee15d4
  content_type: application/pdf
  creator: dernst
  date_created: 2019-05-13T14:11:39Z
  date_updated: 2020-07-14T12:47:30Z
  file_id: '6441'
  file_name: 2013_TechRep_Henzinger.pdf
  file_size: 549684
  relation: main_file
file_date_updated: 2020-07-14T12:47:30Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '23'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '124'
status: public
title: 'Replacing competition with cooperation to achieve scalable lock-free FIFO
  queues '
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '1374'
abstract:
- lang: eng
  text: 'We study two-player zero-sum games over infinite-state graphs equipped with
    ωB and finitary conditions. Our first contribution is about the strategy complexity,
    i.e the memory required for winning strategies: we prove that over general infinite-state
    graphs, memoryless strategies are sufficient for finitary Büchi, and finite-memory
    suffices for finitary parity games. We then study pushdown games with boundedness
    conditions, with two contributions. First we prove a collapse result for pushdown
    games with ωB-conditions, implying the decidability of solving these games. Second
    we consider pushdown games with finitary parity along with stack boundedness conditions,
    and show that solving these games is EXPTIME-complete.'
alternative_title:
- LIPIcs
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. Infinite-state games with finitary conditions. In:
    <i>22nd EACSL Annual Conference on Computer Science Logic</i>. Vol 23. Leibniz
    International Proceedings in Informatics. Schloss Dagstuhl - Leibniz-Zentrum für
    Informatik; 2013:181-196. doi:<a href="https://doi.org/10.4230/LIPIcs.CSL.2013.181">10.4230/LIPIcs.CSL.2013.181</a>'
  apa: 'Chatterjee, K., &#38; Fijalkow, N. (2013). Infinite-state games with finitary
    conditions. In <i>22nd EACSL Annual Conference on Computer Science Logic</i> (Vol.
    23, pp. 181–196). Torino, Italy: Schloss Dagstuhl - Leibniz-Zentrum für Informatik.
    <a href="https://doi.org/10.4230/LIPIcs.CSL.2013.181">https://doi.org/10.4230/LIPIcs.CSL.2013.181</a>'
  chicago: Chatterjee, Krishnendu, and Nathanaël Fijalkow. “Infinite-State Games with
    Finitary Conditions.” In <i>22nd EACSL Annual Conference on Computer Science Logic</i>,
    23:181–96. Leibniz International Proceedings in Informatics. Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik, 2013. <a href="https://doi.org/10.4230/LIPIcs.CSL.2013.181">https://doi.org/10.4230/LIPIcs.CSL.2013.181</a>.
  ieee: K. Chatterjee and N. Fijalkow, “Infinite-state games with finitary conditions,”
    in <i>22nd EACSL Annual Conference on Computer Science Logic</i>, Torino, Italy,
    2013, vol. 23, pp. 181–196.
  ista: 'Chatterjee K, Fijalkow N. 2013. Infinite-state games with finitary conditions.
    22nd EACSL Annual Conference on Computer Science Logic. CSL: Computer Science
    LogicLeibniz International Proceedings in Informatics, LIPIcs, vol. 23, 181–196.'
  mla: Chatterjee, Krishnendu, and Nathanaël Fijalkow. “Infinite-State Games with
    Finitary Conditions.” <i>22nd EACSL Annual Conference on Computer Science Logic</i>,
    vol. 23, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2013, pp. 181–96,
    doi:<a href="https://doi.org/10.4230/LIPIcs.CSL.2013.181">10.4230/LIPIcs.CSL.2013.181</a>.
  short: K. Chatterjee, N. Fijalkow, in:, 22nd EACSL Annual Conference on Computer
    Science Logic, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2013, pp. 181–196.
conference:
  end_date: 2013-09-05
  location: Torino, Italy
  name: 'CSL: Computer Science Logic'
  start_date: 203-09-02
date_created: 2018-12-11T11:51:39Z
date_published: 2013-09-01T00:00:00Z
date_updated: 2021-01-12T06:50:14Z
day: '01'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.4230/LIPIcs.CSL.2013.181
ec_funded: 1
file:
- access_level: open_access
  checksum: b7091a3866db573c0db5ec486952255e
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:13:38Z
  date_updated: 2020-07-14T12:44:47Z
  file_id: '5023'
  file_name: IST-2016-624-v1+1_ChKr_Infinite-state_games_2013_17.pdf
  file_size: 547296
  relation: main_file
file_date_updated: 2020-07-14T12:44:47Z
has_accepted_license: '1'
intvolume: '        23'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 181 - 196
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P 23499-N23
  name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11407
  name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
  name: Microsoft Research Faculty Fellowship
publication: 22nd EACSL Annual Conference on Computer Science Logic
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '5837'
pubrep_id: '624'
quality_controlled: '1'
scopus_import: 1
series_title: Leibniz International Proceedings in Informatics
status: public
title: Infinite-state games with finitary conditions
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 23
year: '2013'
...
---
_id: '1376'
abstract:
- lang: eng
  text: 'We consider the distributed synthesis problem for temporal logic specifications.
    Traditionally, the problem has been studied for LTL, and the previous results
    show that the problem is decidable iff there is no information fork in the architecture.
    We consider the problem for fragments of LTL and our main results are as follows:
    (1) We show that the problem is undecidable for architectures with information
    forks even for the fragment of LTL with temporal operators restricted to next
    and eventually. (2) For specifications restricted to globally along with non-nested
    next operators, we establish decidability (in EXPSPACE) for star architectures
    where the processes receive disjoint inputs, whereas we establish undecidability
    for architectures containing an information fork-meet structure. (3) Finally,
    we consider LTL without the next operator, and establish decidability (NEXPTIME-complete)
    for all architectures for a fragment that consists of a set of safety assumptions,
    and a set of guarantees where each guarantee is a safety, reachability, or liveness
    condition.'
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Jan
  full_name: Otop, Jan
  id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
  last_name: Otop
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
citation:
  ama: 'Chatterjee K, Henzinger TA, Otop J, Pavlogiannis A. Distributed synthesis
    for LTL fragments. In: <i>13th International Conference on Formal Methods in Computer-Aided
    Design</i>. IEEE; 2013:18-25. doi:<a href="https://doi.org/10.1109/FMCAD.2013.6679386">10.1109/FMCAD.2013.6679386</a>'
  apa: 'Chatterjee, K., Henzinger, T. A., Otop, J., &#38; Pavlogiannis, A. (2013).
    Distributed synthesis for LTL fragments. In <i>13th International Conference on
    Formal Methods in Computer-Aided Design</i> (pp. 18–25). Portland, OR, United
    States: IEEE. <a href="https://doi.org/10.1109/FMCAD.2013.6679386">https://doi.org/10.1109/FMCAD.2013.6679386</a>'
  chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Jan Otop, and Andreas Pavlogiannis.
    “Distributed Synthesis for LTL Fragments.” In <i>13th International Conference
    on Formal Methods in Computer-Aided Design</i>, 18–25. IEEE, 2013. <a href="https://doi.org/10.1109/FMCAD.2013.6679386">https://doi.org/10.1109/FMCAD.2013.6679386</a>.
  ieee: K. Chatterjee, T. A. Henzinger, J. Otop, and A. Pavlogiannis, “Distributed
    synthesis for LTL fragments,” in <i>13th International Conference on Formal Methods
    in Computer-Aided Design</i>, Portland, OR, United States, 2013, pp. 18–25.
  ista: 'Chatterjee K, Henzinger TA, Otop J, Pavlogiannis A. 2013. Distributed synthesis
    for LTL fragments. 13th International Conference on Formal Methods in Computer-Aided
    Design. FMCAD: Formal Methods in Computer-Aided Design, 18–25.'
  mla: Chatterjee, Krishnendu, et al. “Distributed Synthesis for LTL Fragments.” <i>13th
    International Conference on Formal Methods in Computer-Aided Design</i>, IEEE,
    2013, pp. 18–25, doi:<a href="https://doi.org/10.1109/FMCAD.2013.6679386">10.1109/FMCAD.2013.6679386</a>.
  short: K. Chatterjee, T.A. Henzinger, J. Otop, A. Pavlogiannis, in:, 13th International
    Conference on Formal Methods in Computer-Aided Design, IEEE, 2013, pp. 18–25.
conference:
  end_date: 2013-10-23
  location: Portland, OR, United States
  name: 'FMCAD: Formal Methods in Computer-Aided Design'
  start_date: 2013-10-20
date_created: 2018-12-11T11:51:40Z
date_published: 2013-12-11T00:00:00Z
date_updated: 2023-02-23T12:24:53Z
day: '11'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1109/FMCAD.2013.6679386
ec_funded: 1
language:
- iso: eng
month: '12'
oa_version: None
page: 18 - 25
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P 23499-N23
  name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
- _id: 2587B514-B435-11E9-9278-68D0E5697425
  name: Microsoft Research Faculty Fellowship
publication: 13th International Conference on Formal Methods in Computer-Aided Design
publication_status: published
publisher: IEEE
publist_id: '5835'
quality_controlled: '1'
related_material:
  record:
  - id: '5406'
    relation: earlier_version
    status: public
status: public
title: Distributed synthesis for LTL fragments
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '1385'
abstract:
- lang: eng
  text: It is often difficult to correctly implement a Boolean controller for a complex
    system, especially when concurrency is involved. Yet, it may be easy to formally
    specify a controller. For instance, for a pipelined processor it suffices to state
    that the visible behavior of the pipelined system should be identical to a non-pipelined
    reference system (Burch-Dill paradigm). We present a novel procedure to efficiently
    synthesize multiple Boolean control signals from a specification given as a quantified
    first-order formula (with a specific quantifier structure). Our approach uses
    uninterpreted functions to abstract details of the design. We construct an unsatisfiable
    SMT formula from the given specification. Then, from just one proof of unsatisfiability,
    we use a variant of Craig interpolation to compute multiple coordinated interpolants
    that implement the Boolean control signals. Our method avoids iterative learning
    and back-substitution of the control functions. We applied our approach to synthesize
    a controller for a simple two-stage pipelined processor, and present first experimental
    results.
acknowledgement: "This research was supported by the European Commission through project\r\nDIAMOND
  \ (FP7-2009-IST-4-248613), and  QUAINT  (I774-N23),  "
arxiv: 1
author:
- first_name: Georg
  full_name: Hofferek, Georg
  last_name: Hofferek
- first_name: Ashutosh
  full_name: Gupta, Ashutosh
  id: 335E5684-F248-11E8-B48F-1D18A9856A87
  last_name: Gupta
- first_name: Bettina
  full_name: Könighofer, Bettina
  last_name: Könighofer
- first_name: Jie
  full_name: Jiang, Jie
  last_name: Jiang
- first_name: Roderick
  full_name: Bloem, Roderick
  last_name: Bloem
citation:
  ama: 'Hofferek G, Gupta A, Könighofer B, Jiang J, Bloem R. Synthesizing multiple
    boolean functions using interpolation on a single proof. In: <i>2013 Formal Methods
    in Computer-Aided Design</i>. IEEE; 2013:77-84. doi:<a href="https://doi.org/10.1109/FMCAD.2013.6679394">10.1109/FMCAD.2013.6679394</a>'
  apa: 'Hofferek, G., Gupta, A., Könighofer, B., Jiang, J., &#38; Bloem, R. (2013).
    Synthesizing multiple boolean functions using interpolation on a single proof.
    In <i>2013 Formal Methods in Computer-Aided Design</i> (pp. 77–84). Portland,
    OR, United States: IEEE. <a href="https://doi.org/10.1109/FMCAD.2013.6679394">https://doi.org/10.1109/FMCAD.2013.6679394</a>'
  chicago: Hofferek, Georg, Ashutosh Gupta, Bettina Könighofer, Jie Jiang, and Roderick
    Bloem. “Synthesizing Multiple Boolean Functions Using Interpolation on a Single
    Proof.” In <i>2013 Formal Methods in Computer-Aided Design</i>, 77–84. IEEE, 2013.
    <a href="https://doi.org/10.1109/FMCAD.2013.6679394">https://doi.org/10.1109/FMCAD.2013.6679394</a>.
  ieee: G. Hofferek, A. Gupta, B. Könighofer, J. Jiang, and R. Bloem, “Synthesizing
    multiple boolean functions using interpolation on a single proof,” in <i>2013
    Formal Methods in Computer-Aided Design</i>, Portland, OR, United States, 2013,
    pp. 77–84.
  ista: 'Hofferek G, Gupta A, Könighofer B, Jiang J, Bloem R. 2013. Synthesizing multiple
    boolean functions using interpolation on a single proof. 2013 Formal Methods in
    Computer-Aided Design. FMCAD: Formal Methods in Computer-Aided Design, 77–84.'
  mla: Hofferek, Georg, et al. “Synthesizing Multiple Boolean Functions Using Interpolation
    on a Single Proof.” <i>2013 Formal Methods in Computer-Aided Design</i>, IEEE,
    2013, pp. 77–84, doi:<a href="https://doi.org/10.1109/FMCAD.2013.6679394">10.1109/FMCAD.2013.6679394</a>.
  short: G. Hofferek, A. Gupta, B. Könighofer, J. Jiang, R. Bloem, in:, 2013 Formal
    Methods in Computer-Aided Design, IEEE, 2013, pp. 77–84.
conference:
  end_date: 2013-10-23
  location: Portland, OR, United States
  name: 'FMCAD: Formal Methods in Computer-Aided Design'
  start_date: 2013-10-20
date_created: 2018-12-11T11:51:43Z
date_published: 2013-12-11T00:00:00Z
date_updated: 2021-01-12T06:50:19Z
day: '11'
department:
- _id: ToHe
doi: 10.1109/FMCAD.2013.6679394
ec_funded: 1
external_id:
  arxiv:
  - '1308.4767'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1308.4767
month: '12'
oa: 1
oa_version: Preprint
page: 77 - 84
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
publication: 2013 Formal Methods in Computer-Aided Design
publication_status: published
publisher: IEEE
publist_id: '5825'
quality_controlled: '1'
status: public
title: Synthesizing multiple boolean functions using interpolation on a single proof
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '1387'
abstract:
- lang: eng
  text: Choices made by nondeterministic word automata depend on both the past (the
    prefix of the word read so far) and the future (the suffix yet to be read). In
    several applications, most notably synthesis, the future is diverse or unknown,
    leading to algorithms that are based on deterministic automata. Hoping to retain
    some of the advantages of nondeterministic automata, researchers have studied
    restricted classes of nondeterministic automata. Three such classes are nondeterministic
    automata that are good for trees (GFT; i.e., ones that can be expanded to tree
    automata accepting the derived tree languages, thus whose choices should satisfy
    diverse futures), good for games (GFG; i.e., ones whose choices depend only on
    the past), and determinizable by pruning (DBP; i.e., ones that embody equivalent
    deterministic automata). The theoretical properties and relative merits of the
    different classes are still open, having vagueness on whether they really differ
    from deterministic automata. In particular, while DBP ⊆ GFG ⊆ GFT, it is not known
    whether every GFT automaton is GFG and whether every GFG automaton is DBP. Also
    open is the possible succinctness of GFG and GFT automata compared to deterministic
    automata. We study these problems for ω-regular automata with all common acceptance
    conditions. We show that GFT=GFG⊃DBP, and describe a determinization construction
    for GFG automata.
acknowledgement: and ERC Grant QUALITY.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Udi
  full_name: Boker, Udi
  id: 31E297B6-F248-11E8-B48F-1D18A9856A87
  last_name: Boker
- first_name: Denis
  full_name: Kuperberg, Denis
  last_name: Kuperberg
- first_name: Orna
  full_name: Kupferman, Orna
  last_name: Kupferman
- first_name: Michał
  full_name: Skrzypczak, Michał
  last_name: Skrzypczak
citation:
  ama: Boker U, Kuperberg D, Kupferman O, Skrzypczak M. Nondeterminism in the presence
    of a diverse or unknown future. 2013;7966(PART 2):89-100. doi:<a href="https://doi.org/10.1007/978-3-642-39212-2_11">10.1007/978-3-642-39212-2_11</a>
  apa: 'Boker, U., Kuperberg, D., Kupferman, O., &#38; Skrzypczak, M. (2013). Nondeterminism
    in the presence of a diverse or unknown future. Presented at the ICALP: Automata,
    Languages and Programming, Riga, Latvia: Springer. <a href="https://doi.org/10.1007/978-3-642-39212-2_11">https://doi.org/10.1007/978-3-642-39212-2_11</a>'
  chicago: Boker, Udi, Denis Kuperberg, Orna Kupferman, and Michał Skrzypczak. “Nondeterminism
    in the Presence of a Diverse or Unknown Future.” Lecture Notes in Computer Science.
    Springer, 2013. <a href="https://doi.org/10.1007/978-3-642-39212-2_11">https://doi.org/10.1007/978-3-642-39212-2_11</a>.
  ieee: U. Boker, D. Kuperberg, O. Kupferman, and M. Skrzypczak, “Nondeterminism in
    the presence of a diverse or unknown future,” vol. 7966, no. PART 2. Springer,
    pp. 89–100, 2013.
  ista: Boker U, Kuperberg D, Kupferman O, Skrzypczak M. 2013. Nondeterminism in the
    presence of a diverse or unknown future. 7966(PART 2), 89–100.
  mla: Boker, Udi, et al. <i>Nondeterminism in the Presence of a Diverse or Unknown
    Future</i>. Vol. 7966, no. PART 2, Springer, 2013, pp. 89–100, doi:<a href="https://doi.org/10.1007/978-3-642-39212-2_11">10.1007/978-3-642-39212-2_11</a>.
  short: U. Boker, D. Kuperberg, O. Kupferman, M. Skrzypczak, 7966 (2013) 89–100.
conference:
  end_date: 2013-07-12
  location: Riga, Latvia
  name: 'ICALP: Automata, Languages and Programming'
  start_date: 2013-07-08
date_created: 2018-12-11T11:51:44Z
date_published: 2013-07-01T00:00:00Z
date_updated: 2020-08-11T10:09:09Z
day: '01'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1007/978-3-642-39212-2_11
ec_funded: 1
file:
- access_level: open_access
  checksum: 98bc02e3793072e279ec8d364b381ff3
  content_type: application/pdf
  creator: dernst
  date_created: 2020-05-15T11:05:50Z
  date_updated: 2020-07-14T12:44:48Z
  file_id: '7857'
  file_name: 2013_ICALP_Boker.pdf
  file_size: 276982
  relation: main_file
file_date_updated: 2020-07-14T12:44:48Z
has_accepted_license: '1'
intvolume: '      7966'
issue: PART 2
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 89 - 100
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
publication_status: published
publisher: Springer
publist_id: '5823'
quality_controlled: '1'
scopus_import: 1
series_title: Lecture Notes in Computer Science
status: public
title: Nondeterminism in the presence of a diverse or unknown future
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7966
year: '2013'
...
---
_id: '1405'
abstract:
- lang: eng
  text: "Motivated by the analysis of highly dynamic message-passing systems, i.e.
    unbounded thread creation, mobility, etc. we present a framework for the analysis
    of depth-bounded systems. Depth-bounded systems are one of the most expressive
    known fragment of the π-calculus for which interesting verification problems are
    still decidable. Even though they are infinite state systems depth-bounded systems
    are well-structured, thus can be analyzed algorithmically. We give an interpretation
    of depth-bounded systems as graph-rewriting systems. This gives more flexibility
    and ease of use to apply depth-bounded systems to other type of systems like shared
    memory concurrency.\r\n\r\nFirst, we develop an adequate domain of limits for
    depth-bounded systems, a prerequisite for the effective representation of downward-closed
    sets. Downward-closed sets are needed by forward saturation-based algorithms to
    represent potentially infinite sets of states. Then, we present an abstract interpretation
    framework to compute the covering set of well-structured transition systems. Because,
    in general, the covering set is not computable, our abstraction over-approximates
    the actual covering set. Our abstraction captures the essence of acceleration
    based-algorithms while giving up enough precision to ensure convergence. We have
    implemented the analysis in the PICASSO tool and show that it is accurate in practice.
    Finally, we build some further analyses like termination using the covering set
    as starting point."
acknowledgement: "This work was supported in part by the Austrian Science Fund NFN
  RiSE (Rigorous Systems Engineering) and by the ERC Advanced Grant QUAREM (Quantitative
  Reactve Modeling).\r\nChapter 2, 3, and 4 are joint work with Thomas A. Henzinger
  and Thomas Wies. Chapter 2 was published in FoSSaCS 2010 as “Forward Analysis of
  Depth-Bounded Processes” [112]. Chapter 3 was published in VMCAI 2012 as “Ideal
  Abstractions for Well-Structured Transition Systems” [114]. Chap- ter 5.1 is joint
  work with Kshitij Bansal, Eric Koskinen, and Thomas Wies. It was published in TACAS
  2013 as “Structural Counter Abstraction” [13]. The author’s contribution in this
  part is mostly related to the implementation. The theory required to understand
  the method and its implementation is quickly recalled to make the thesis self-contained,
  but should not be considered as a contribution. For the details of the methods,
  we refer the reader to the orig- inal publication [13] and the corresponding technical
  report [14]. Chapter 5.2 is ongoing work with Shahram Esmaeilsabzali, Rupak Majumdar,
  and Thomas Wies. I also would like to thank the people who supported over the past
  4 years. My advisor Thomas A. Henzinger who gave me a lot of freedom to work on
  projects I was interested in. My collaborators, especially Thomas Wies with whom
  I worked since the beginning. The members of my thesis committee, Viktor Kun- cak
  and Rupak Majumdar, who also agreed to advise me. Simon Aeschbacher, Pavol Cerny,
  Cezara Dragoi, Arjun Radhakrishna, my family, friends and col- leagues who created
  an enjoyable environment. "
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Damien
  full_name: Zufferey, Damien
  id: 4397AC76-F248-11E8-B48F-1D18A9856A87
  last_name: Zufferey
  orcid: 0000-0002-3197-8736
citation:
  ama: Zufferey D. Analysis of dynamic message passing programs. 2013. doi:<a href="https://doi.org/10.15479/at:ista:1405">10.15479/at:ista:1405</a>
  apa: Zufferey, D. (2013). <i>Analysis of dynamic message passing programs</i>. Institute
    of Science and Technology Austria. <a href="https://doi.org/10.15479/at:ista:1405">https://doi.org/10.15479/at:ista:1405</a>
  chicago: Zufferey, Damien. “Analysis of Dynamic Message Passing Programs.” Institute
    of Science and Technology Austria, 2013. <a href="https://doi.org/10.15479/at:ista:1405">https://doi.org/10.15479/at:ista:1405</a>.
  ieee: D. Zufferey, “Analysis of dynamic message passing programs,” Institute of
    Science and Technology Austria, 2013.
  ista: Zufferey D. 2013. Analysis of dynamic message passing programs. Institute
    of Science and Technology Austria.
  mla: Zufferey, Damien. <i>Analysis of Dynamic Message Passing Programs</i>. Institute
    of Science and Technology Austria, 2013, doi:<a href="https://doi.org/10.15479/at:ista:1405">10.15479/at:ista:1405</a>.
  short: D. Zufferey, Analysis of Dynamic Message Passing Programs, Institute of Science
    and Technology Austria, 2013.
date_created: 2018-12-11T11:51:50Z
date_published: 2013-09-05T00:00:00Z
date_updated: 2023-09-07T11:36:37Z
day: '05'
ddc:
- '000'
degree_awarded: PhD
department:
- _id: ToHe
- _id: GradSch
doi: 10.15479/at:ista:1405
ec_funded: 1
file:
- access_level: open_access
  checksum: ed2d7b52933d134e8dc69d569baa284e
  content_type: application/pdf
  creator: dernst
  date_created: 2021-02-22T11:28:36Z
  date_updated: 2021-02-22T11:28:36Z
  file_id: '9176'
  file_name: 2013_Zufferey_thesis_final.pdf
  file_size: 1514906
  relation: main_file
  success: 1
- access_level: closed
  checksum: cecc4c4b14225bee973d32e3dba91a55
  content_type: application/pdf
  creator: cchlebak
  date_created: 2021-11-16T14:42:52Z
  date_updated: 2021-11-17T13:47:58Z
  file_id: '10298'
  file_name: 2013_Zufferey_thesis_final_pdfa.pdf
  file_size: 1378313
  relation: main_file
file_date_updated: 2021-11-17T13:47:58Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- url: http://dzufferey.github.io/files/2013_thesis.pdf
month: '09'
oa: 1
oa_version: Published Version
page: '134'
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '5802'
related_material:
  record:
  - id: '2847'
    relation: part_of_dissertation
    status: public
  - id: '3251'
    relation: part_of_dissertation
    status: public
  - id: '4361'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
title: Analysis of dynamic message passing programs
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2013'
...
---
_id: '1406'
abstract:
- lang: eng
  text: Epithelial spreading is a critical part of various developmental and wound
    repair processes. Here we use zebrafish epiboly as a model system to study the
    cellular and molecular mechanisms underlying the spreading of epithelial sheets.
    During zebrafish epiboly the enveloping cell layer (EVL), a simple squamous epithelium,
    spreads over the embryo to eventually cover the entire yolk cell by the end of
    gastrulation. The EVL leading edge is anchored through tight junctions to the
    yolk syncytial layer (YSL), where directly adjacent to the EVL margin a contractile
    actomyosin ring is formed that is thought to drive EVL epiboly. The prevalent
    view in the field was that the contractile ring exerts a pulling force on the
    EVL margin, which pulls the EVL towards the vegetal pole. However, how this force
    is generated and how it affects EVL morphology still remains elusive. Moreover,
    the cellular mechanisms mediating the increase in EVL surface area, while maintaining
    tissue integrity and function are still unclear. Here we show that the YSL actomyosin
    ring pulls on the EVL margin by two distinct force-generating mechanisms. One
    mechanism is based on contraction of the ring around its circumference, as previously
    proposed. The second mechanism is based on actomyosin retrogade flows, generating
    force through resistance against the substrate. The latter can function at any
    epiboly stage even in situations where the contraction-based mechanism is unproductive.
    Additionally, we demonstrate that during epiboly the EVL is subjected to anisotropic
    tension, which guides the orientation of EVL cell division along the main axis
    (animal-vegetal) of tension. The influence of tension in cell division orientation
    involves cell elongation and requires myosin-2 activity for proper spindle alignment.
    Strikingly, we reveal that tension-oriented cell divisions release anisotropic
    tension within the EVL and that in the absence of such divisions, EVL cells undergo
    ectopic fusions. We conclude that forces applied to the EVL by the action of the
    YSL actomyosin ring generate a tension anisotropy in the EVL that orients cell
    divisions, which in turn limit tissue tension increase thereby facilitating tissue
    spreading.
acknowledged_ssus:
- _id: Bio
- _id: PreCl
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Pedro
  full_name: Campinho, Pedro
  id: 3AFBBC42-F248-11E8-B48F-1D18A9856A87
  last_name: Campinho
  orcid: 0000-0002-8526-5416
citation:
  ama: 'Campinho P. Mechanics of zebrafish epiboly: Tension-oriented cell divisions
    limit anisotropic tissue tension in epithelial spreading. 2013.'
  apa: 'Campinho, P. (2013). <i>Mechanics of zebrafish epiboly: Tension-oriented cell
    divisions limit anisotropic tissue tension in epithelial spreading</i>. Institute
    of Science and Technology Austria.'
  chicago: 'Campinho, Pedro. “Mechanics of Zebrafish Epiboly: Tension-Oriented Cell
    Divisions Limit Anisotropic Tissue Tension in Epithelial Spreading.” Institute
    of Science and Technology Austria, 2013.'
  ieee: 'P. Campinho, “Mechanics of zebrafish epiboly: Tension-oriented cell divisions
    limit anisotropic tissue tension in epithelial spreading,” Institute of Science
    and Technology Austria, 2013.'
  ista: 'Campinho P. 2013. Mechanics of zebrafish epiboly: Tension-oriented cell divisions
    limit anisotropic tissue tension in epithelial spreading. Institute of Science
    and Technology Austria.'
  mla: 'Campinho, Pedro. <i>Mechanics of Zebrafish Epiboly: Tension-Oriented Cell
    Divisions Limit Anisotropic Tissue Tension in Epithelial Spreading</i>. Institute
    of Science and Technology Austria, 2013.'
  short: 'P. Campinho, Mechanics of Zebrafish Epiboly: Tension-Oriented Cell Divisions
    Limit Anisotropic Tissue Tension in Epithelial Spreading, Institute of Science
    and Technology Austria, 2013.'
date_created: 2018-12-11T11:51:50Z
date_published: 2013-10-01T00:00:00Z
date_updated: 2023-09-07T11:36:07Z
day: '01'
degree_awarded: PhD
department:
- _id: CaHe
language:
- iso: eng
month: '10'
oa_version: None
page: '123'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '5801'
status: public
supervisor:
- first_name: Carl-Philipp J
  full_name: Heisenberg, Carl-Philipp J
  id: 39427864-F248-11E8-B48F-1D18A9856A87
  last_name: Heisenberg
  orcid: 0000-0002-0912-4566
title: 'Mechanics of zebrafish epiboly: Tension-oriented cell divisions limit anisotropic
  tissue tension in epithelial spreading'
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2013'
...
---
_id: '9459'
abstract:
- lang: eng
  text: Nucleosome remodelers of the DDM1/Lsh family are required for DNA methylation
    of transposable elements, but the reason for this is unknown. How DDM1 interacts
    with other methylation pathways, such as small-RNA-directed DNA methylation (RdDM),
    which is thought to mediate plant asymmetric methylation through DRM enzymes,
    is also unclear. Here, we show that most asymmetric methylation is facilitated
    by DDM1 and mediated by the methyltransferase CMT2 separately from RdDM. We find
    that heterochromatic sequences preferentially require DDM1 for DNA methylation
    and that this preference depends on linker histone H1. RdDM is instead inhibited
    by heterochromatin and absolutely requires the nucleosome remodeler DRD1. Together,
    DDM1 and RdDM mediate nearly all transposon methylation and collaborate to repress
    transposition and regulate the methylation and expression of genes. Our results
    indicate that DDM1 provides DNA methyltransferases access to H1-containing heterochromatin
    to allow stable silencing of transposable elements in cooperation with the RdDM
    pathway.
article_processing_charge: No
article_type: original
author:
- first_name: Assaf
  full_name: Zemach, Assaf
  last_name: Zemach
- first_name: M. Yvonne
  full_name: Kim, M. Yvonne
  last_name: Kim
- first_name: Ping-Hung
  full_name: Hsieh, Ping-Hung
  last_name: Hsieh
- first_name: Devin
  full_name: Coleman-Derr, Devin
  last_name: Coleman-Derr
- first_name: Leor
  full_name: Eshed-Williams, Leor
  last_name: Eshed-Williams
- first_name: Ka
  full_name: Thao, Ka
  last_name: Thao
- first_name: Stacey L.
  full_name: Harmer, Stacey L.
  last_name: Harmer
- first_name: Daniel
  full_name: Zilberman, Daniel
  id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
  last_name: Zilberman
  orcid: 0000-0002-0123-8649
citation:
  ama: Zemach A, Kim MY, Hsieh P-H, et al. The Arabidopsis nucleosome remodeler DDM1
    allows DNA methyltransferases to access H1-containing heterochromatin. <i>Cell</i>.
    2013;153(1):193-205. doi:<a href="https://doi.org/10.1016/j.cell.2013.02.033">10.1016/j.cell.2013.02.033</a>
  apa: Zemach, A., Kim, M. Y., Hsieh, P.-H., Coleman-Derr, D., Eshed-Williams, L.,
    Thao, K., … Zilberman, D. (2013). The Arabidopsis nucleosome remodeler DDM1 allows
    DNA methyltransferases to access H1-containing heterochromatin. <i>Cell</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.cell.2013.02.033">https://doi.org/10.1016/j.cell.2013.02.033</a>
  chicago: Zemach, Assaf, M. Yvonne Kim, Ping-Hung Hsieh, Devin Coleman-Derr, Leor
    Eshed-Williams, Ka Thao, Stacey L. Harmer, and Daniel Zilberman. “The Arabidopsis
    Nucleosome Remodeler DDM1 Allows DNA Methyltransferases to Access H1-Containing
    Heterochromatin.” <i>Cell</i>. Elsevier, 2013. <a href="https://doi.org/10.1016/j.cell.2013.02.033">https://doi.org/10.1016/j.cell.2013.02.033</a>.
  ieee: A. Zemach <i>et al.</i>, “The Arabidopsis nucleosome remodeler DDM1 allows
    DNA methyltransferases to access H1-containing heterochromatin,” <i>Cell</i>,
    vol. 153, no. 1. Elsevier, pp. 193–205, 2013.
  ista: Zemach A, Kim MY, Hsieh P-H, Coleman-Derr D, Eshed-Williams L, Thao K, Harmer
    SL, Zilberman D. 2013. The Arabidopsis nucleosome remodeler DDM1 allows DNA methyltransferases
    to access H1-containing heterochromatin. Cell. 153(1), 193–205.
  mla: Zemach, Assaf, et al. “The Arabidopsis Nucleosome Remodeler DDM1 Allows DNA
    Methyltransferases to Access H1-Containing Heterochromatin.” <i>Cell</i>, vol.
    153, no. 1, Elsevier, 2013, pp. 193–205, doi:<a href="https://doi.org/10.1016/j.cell.2013.02.033">10.1016/j.cell.2013.02.033</a>.
  short: A. Zemach, M.Y. Kim, P.-H. Hsieh, D. Coleman-Derr, L. Eshed-Williams, K.
    Thao, S.L. Harmer, D. Zilberman, Cell 153 (2013) 193–205.
date_created: 2021-06-04T12:23:28Z
date_published: 2013-03-28T00:00:00Z
date_updated: 2021-12-14T08:25:35Z
day: '28'
department:
- _id: DaZi
doi: 10.1016/j.cell.2013.02.033
extern: '1'
external_id:
  pmid:
  - '23540698'
intvolume: '       153'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.cell.2013.02.033
month: '03'
oa: 1
oa_version: Published Version
page: 193-205
pmid: 1
publication: Cell
publication_identifier:
  eissn:
  - 1097-4172
  issn:
  - 0092-8674
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: The Arabidopsis nucleosome remodeler DDM1 allows DNA methyltransferases to
  access H1-containing heterochromatin
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 153
year: '2013'
...
