---
_id: '5437'
abstract:
- lang: eng
  text: "We consider the core algorithmic problems related to verification of systems
    with respect to three classical quantitative properties, namely, the mean-payoff
    property, the ratio property, and the minimum initial credit for energy property.
    \r\nThe algorithmic problem given a graph and a quantitative property asks to
    compute the optimal value (the infimum value over all traces) from every node
    of the graph. We consider graphs with constant treewidth, and it is well-known
    that the control-flow graphs of most programs have constant treewidth. Let $n$
    denote the number of nodes of a graph, $m$ the number of edges (for constant treewidth
    graphs $m=O(n)$) and $W$ the largest absolute value of the weights.\r\nOur main
    theoretical results are as follows.\r\nFirst, for constant treewidth graphs we
    present an algorithm that approximates the mean-payoff value within a multiplicative
    factor of $\\epsilon$ in time $O(n \\cdot \\log (n/\\epsilon))$ and linear space,
    as compared to the classical algorithms that require quadratic time. Second, for
    the ratio property we present an algorithm that for constant treewidth graphs
    works in time $O(n \\cdot \\log (|a\\cdot b|))=O(n\\cdot\\log (n\\cdot W))$, when
    the output is $\\frac{a}{b}$, as compared to the previously best known algorithm
    with running time $O(n^2 \\cdot \\log (n\\cdot W))$. Third, for the minimum initial
    credit problem we show that (i)~for general graphs the problem can be solved in
    $O(n^2\\cdot m)$ time and the associated decision problem can be solved in $O(n\\cdot
    m)$ time, improving the previous known $O(n^3\\cdot m\\cdot \\log (n\\cdot W))$
    and $O(n^2 \\cdot m)$ bounds, respectively; and (ii)~for constant treewidth graphs
    we present an algorithm that requires $O(n\\cdot \\log n)$ time, improving the
    previous known $O(n^4 \\cdot \\log (n \\cdot W))$ bound.\r\nWe have implemented
    some of our algorithms and show that they present a significant speedup on standard
    benchmarks. "
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
citation:
  ama: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. <i>Faster Algorithms for Quantitative
    Verification in Constant Treewidth Graphs</i>. IST Austria; 2015. doi:<a href="https://doi.org/10.15479/AT:IST-2015-330-v2-1">10.15479/AT:IST-2015-330-v2-1</a>
  apa: Chatterjee, K., Ibsen-Jensen, R., &#38; Pavlogiannis, A. (2015). <i>Faster
    algorithms for quantitative verification in constant treewidth graphs</i>. IST
    Austria. <a href="https://doi.org/10.15479/AT:IST-2015-330-v2-1">https://doi.org/10.15479/AT:IST-2015-330-v2-1</a>
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis.
    <i>Faster Algorithms for Quantitative Verification in Constant Treewidth Graphs</i>.
    IST Austria, 2015. <a href="https://doi.org/10.15479/AT:IST-2015-330-v2-1">https://doi.org/10.15479/AT:IST-2015-330-v2-1</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, <i>Faster algorithms
    for quantitative verification in constant treewidth graphs</i>. IST Austria, 2015.
  ista: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2015. Faster algorithms for
    quantitative verification in constant treewidth graphs, IST Austria, 27p.
  mla: Chatterjee, Krishnendu, et al. <i>Faster Algorithms for Quantitative Verification
    in Constant Treewidth Graphs</i>. IST Austria, 2015, doi:<a href="https://doi.org/10.15479/AT:IST-2015-330-v2-1">10.15479/AT:IST-2015-330-v2-1</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, Faster Algorithms for Quantitative
    Verification in Constant Treewidth Graphs, IST Austria, 2015.
date_created: 2018-12-12T11:39:19Z
date_published: 2015-04-27T00:00:00Z
date_updated: 2023-02-23T12:26:05Z
day: '27'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2015-330-v2-1
file:
- access_level: open_access
  checksum: f5917c20f84018b362d385c000a2e123
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:12Z
  date_updated: 2020-07-14T12:46:54Z
  file_id: '5473'
  file_name: IST-2015-330-v2+1_main.pdf
  file_size: 1072137
  relation: main_file
file_date_updated: 2020-07-14T12:46:54Z
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: '333'
related_material:
  record:
  - id: '1607'
    relation: later_version
    status: public
  - id: '5430'
    relation: earlier_version
    status: public
status: public
title: Faster algorithms for quantitative verification in constant treewidth graphs
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '5438'
abstract:
- lang: eng
  text: "The edit distance between two words w1, w2 is the minimal number of word
    operations (letter insertions, deletions, and substitutions) necessary to transform
    w1 to w2. The edit distance generalizes to languages L1, L2, where the edit distance
    is the minimal number k such that for every word from L1 there exists a word in
    L2 with edit distance at most k. We study the edit distance computation problem
    between pushdown automata and their subclasses.\r\nThe problem of computing edit
    distance to a pushdown automaton is undecidable, and in practice, the interesting
    question is to compute the edit distance from a pushdown automaton (the implementation,
    a standard model for programs with recursion) to a regular language (the specification).
    In this work, we present a complete picture of decidability and complexity for
    deciding whether, for a given threshold k, the edit distance from a pushdown automaton
    to a finite automaton is at most k. "
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: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Jan
  full_name: Otop, Jan
  id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
  last_name: Otop
citation:
  ama: Chatterjee K, Henzinger TA, Ibsen-Jensen R, Otop J. <i>Edit Distance for Pushdown
    Automata</i>. IST Austria; 2015. doi:<a href="https://doi.org/10.15479/AT:IST-2015-334-v1-1">10.15479/AT:IST-2015-334-v1-1</a>
  apa: Chatterjee, K., Henzinger, T. A., Ibsen-Jensen, R., &#38; Otop, J. (2015).
    <i>Edit distance for pushdown automata</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2015-334-v1-1">https://doi.org/10.15479/AT:IST-2015-334-v1-1</a>
  chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Rasmus Ibsen-Jensen, and Jan
    Otop. <i>Edit Distance for Pushdown Automata</i>. IST Austria, 2015. <a href="https://doi.org/10.15479/AT:IST-2015-334-v1-1">https://doi.org/10.15479/AT:IST-2015-334-v1-1</a>.
  ieee: K. Chatterjee, T. A. Henzinger, R. Ibsen-Jensen, and J. Otop, <i>Edit distance
    for pushdown automata</i>. IST Austria, 2015.
  ista: Chatterjee K, Henzinger TA, Ibsen-Jensen R, Otop J. 2015. Edit distance for
    pushdown automata, IST Austria, 15p.
  mla: Chatterjee, Krishnendu, et al. <i>Edit Distance for Pushdown Automata</i>.
    IST Austria, 2015, doi:<a href="https://doi.org/10.15479/AT:IST-2015-334-v1-1">10.15479/AT:IST-2015-334-v1-1</a>.
  short: K. Chatterjee, T.A. Henzinger, R. Ibsen-Jensen, J. Otop, Edit Distance for
    Pushdown Automata, IST Austria, 2015.
date_created: 2018-12-12T11:39:20Z
date_published: 2015-05-05T00:00:00Z
date_updated: 2023-02-23T12:20:08Z
day: '05'
ddc:
- '004'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2015-334-v1-1
file:
- access_level: open_access
  checksum: 8a5f2d77560e552af87eb1982437a43b
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:56Z
  date_updated: 2020-07-14T12:46:55Z
  file_id: '5518'
  file_name: IST-2015-334-v1+1_report.pdf
  file_size: 422573
  relation: main_file
file_date_updated: 2020-07-14T12:46:55Z
has_accepted_license: '1'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: '15'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '334'
related_material:
  record:
  - id: '1610'
    relation: later_version
    status: public
  - id: '465'
    relation: later_version
    status: public
status: public
title: Edit distance for pushdown automata
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '5440'
abstract:
- lang: eng
  text: 'Evolution occurs in populations of reproducing individuals. The structure
    of the population affects the outcome of the evolutionary process. Evolutionary
    graph theory is a powerful approach to study this phenomenon. There are two graphs.
    The interaction graph specifies who interacts with whom for payoff in the context
    of evolution. The replacement graph specifies who competes with whom for reproduction.
    The vertices of the two graphs are the same, and each vertex corresponds to an
    individual of the population. The fitness (or the reproductive rate) is a non-negative
    number, and depends on the payoff. A key quantity is the fixation probability
    of a new mutant. It is defined as the probability that a newly introduced mutant
    (on a single vertex) generates a lineage of offspring which eventually takes over
    the entire population of resident individuals. The basic computational questions
    are as follows: (i) the qualitative question asks whether the fixation probability
    is positive; and (ii) the quantitative approximation question asks for an approximation
    of the fixation probability. Our main results are as follows: First, we consider
    a special case of the general problem, where the residents do not reproduce. We
    show that the qualitative question is NP-complete, and the quantitative approximation
    question is #P-complete, and the hardness results hold even in the special case
    where the interaction and the replacement graphs coincide. Second, we show that
    in general both the qualitative and the quantitative approximation questions are
    PSPACE-complete. The PSPACE-hardness result for quantitative approximation holds
    even when the fitness is always positive.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Martin
  full_name: Nowak, Martin
  last_name: Nowak
citation:
  ama: Chatterjee K, Ibsen-Jensen R, Nowak M. <i>The Complexity of Evolutionary Games
    on Graphs</i>. IST Austria; 2015. doi:<a href="https://doi.org/10.15479/AT:IST-2015-323-v2-2">10.15479/AT:IST-2015-323-v2-2</a>
  apa: Chatterjee, K., Ibsen-Jensen, R., &#38; Nowak, M. (2015). <i>The complexity
    of evolutionary games on graphs</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2015-323-v2-2">https://doi.org/10.15479/AT:IST-2015-323-v2-2</a>
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Martin Nowak. <i>The Complexity
    of Evolutionary Games on Graphs</i>. IST Austria, 2015. <a href="https://doi.org/10.15479/AT:IST-2015-323-v2-2">https://doi.org/10.15479/AT:IST-2015-323-v2-2</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, and M. Nowak, <i>The complexity of evolutionary
    games on graphs</i>. IST Austria, 2015.
  ista: Chatterjee K, Ibsen-Jensen R, Nowak M. 2015. The complexity of evolutionary
    games on graphs, IST Austria, 18p.
  mla: Chatterjee, Krishnendu, et al. <i>The Complexity of Evolutionary Games on Graphs</i>.
    IST Austria, 2015, doi:<a href="https://doi.org/10.15479/AT:IST-2015-323-v2-2">10.15479/AT:IST-2015-323-v2-2</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, M. Nowak, The Complexity of Evolutionary
    Games on Graphs, IST Austria, 2015.
date_created: 2018-12-12T11:39:21Z
date_published: 2015-06-16T00:00:00Z
date_updated: 2023-02-23T12:26:10Z
day: '16'
ddc:
- '005'
- '576'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2015-323-v2-2
file:
- access_level: open_access
  checksum: 66aace7d367032af97c15e35c9be9636
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:23Z
  date_updated: 2020-07-14T12:46:56Z
  file_id: '5484'
  file_name: IST-2015-323-v2+2_main.pdf
  file_size: 466161
  relation: main_file
file_date_updated: 2020-07-14T12:46:56Z
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: '338'
related_material:
  record:
  - id: '5421'
    relation: earlier_version
    status: public
  - id: '5432'
    relation: earlier_version
    status: public
status: public
title: The complexity of evolutionary games on graphs
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '5441'
abstract:
- lang: eng
  text: We study algorithmic questions for concurrent systems where the transitions
    are labeled from a complete, closed semiring, and path properties are algebraic
    with semiring operations. The algebraic path properties can model dataflow analysis
    problems, the shortest path problem, and many other natural problems that arise
    in program analysis. We consider that each component of the concurrent system
    is a graph with constant treewidth, a property satisfied by the controlflow graphs
    of most programs. We allow for multiple possible queries, which arise naturally
    in demand driven dataflow analysis. The study of multiple queries allows us to
    consider the tradeoff between the resource usage of the one-time preprocessing
    and for each individual query. The traditional approach constructs the product
    graph of all components and applies the best-known graph algorithm on the product.
    In this approach, even the answer to a single query requires the transitive closure
    (i.e., the results of all possible queries), which provides no room for tradeoff
    between preprocessing and query time. Our main contributions are algorithms that
    significantly improve the worst-case running time of the traditional approach,
    and provide various tradeoffs depending on the number of queries. For example,
    in a concurrent system of two components, the traditional approach requires hexic
    time in the worst case for answering one query as well as computing the transitive
    closure, whereas we show that with one-time preprocessing in almost cubic time,
    each subsequent query can be answered in at most linear time, and even the transitive
    closure can be computed in almost quartic time. Furthermore, we establish conditional
    optimality results showing that the worst-case running time of our algorithms
    cannot be improved without achieving major breakthroughs in graph algorithms (i.e.,
    improving the worst-case bound for the shortest path problem in general graphs).
    Preliminary experimental results show that our algorithms perform favorably on
    several benchmarks.
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: Amir
  full_name: Goharshady, Amir
  id: 391365CE-F248-11E8-B48F-1D18A9856A87
  last_name: Goharshady
  orcid: 0000-0003-1702-6584
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
citation:
  ama: Chatterjee K, Ibsen-Jensen R, Goharshady AK, Pavlogiannis A. <i>Algorithms
    for Algebraic Path Properties in Concurrent Systems of Constant Treewidth Components</i>.
    IST Austria; 2015. doi:<a href="https://doi.org/10.15479/AT:IST-2015-340-v1-1">10.15479/AT:IST-2015-340-v1-1</a>
  apa: Chatterjee, K., Ibsen-Jensen, R., Goharshady, A. K., &#38; Pavlogiannis, A.
    (2015). <i>Algorithms for algebraic path properties in concurrent systems of constant
    treewidth components</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2015-340-v1-1">https://doi.org/10.15479/AT:IST-2015-340-v1-1</a>
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, Amir Kafshdar Goharshady,
    and Andreas Pavlogiannis. <i>Algorithms for Algebraic Path Properties in Concurrent
    Systems of Constant Treewidth Components</i>. IST Austria, 2015. <a href="https://doi.org/10.15479/AT:IST-2015-340-v1-1">https://doi.org/10.15479/AT:IST-2015-340-v1-1</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, A. K. Goharshady, and A. Pavlogiannis, <i>Algorithms
    for algebraic path properties in concurrent systems of constant treewidth components</i>.
    IST Austria, 2015.
  ista: Chatterjee K, Ibsen-Jensen R, Goharshady AK, Pavlogiannis A. 2015. Algorithms
    for algebraic path properties in concurrent systems of constant treewidth components,
    IST Austria, 24p.
  mla: Chatterjee, Krishnendu, et al. <i>Algorithms for Algebraic Path Properties
    in Concurrent Systems of Constant Treewidth Components</i>. IST Austria, 2015,
    doi:<a href="https://doi.org/10.15479/AT:IST-2015-340-v1-1">10.15479/AT:IST-2015-340-v1-1</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, A.K. Goharshady, A. Pavlogiannis, Algorithms
    for Algebraic Path Properties in Concurrent Systems of Constant Treewidth Components,
    IST Austria, 2015.
date_created: 2018-12-12T11:39:21Z
date_published: 2015-07-11T00:00:00Z
date_updated: 2023-09-19T14:36:19Z
day: '11'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2015-340-v1-1
file:
- access_level: open_access
  checksum: df383dc62c94d7b2ea639aba088a76c6
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:09Z
  date_updated: 2020-07-14T12:46:56Z
  file_id: '5531'
  file_name: IST-2015-340-v1+1_main.pdf
  file_size: 861396
  relation: main_file
file_date_updated: 2020-07-14T12:46:56Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '24'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '340'
related_material:
  record:
  - id: '1437'
    relation: later_version
    status: public
  - id: '5442'
    relation: earlier_version
    status: public
  - id: '6009'
    relation: later_version
    status: public
status: public
title: Algorithms for algebraic path properties in concurrent systems of constant
  treewidth components
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '5443'
abstract:
- lang: eng
  text: POMDPs are standard models for probabilistic planning problems, where an agent
    interacts with an uncertain environment. We study the problem of almost-sure reachability,
    where given a set of target states, the question is to decide whether there is
    a policy to ensure that the target set is reached with probability 1 (almost-surely).
    While in general the problem is EXPTIME-complete, in many practical cases policies
    with a small amount of memory suffice. Moreover, the existing solution to the
    problem is explicit, which first requires to construct explicitly an exponential
    reduction to a belief-support MDP. In this work, we first study the existence
    of observation-stationary strategies, which is NP-complete, and then small-memory
    strategies. We present a symbolic algorithm by an efficient encoding to SAT and
    using a SAT solver for the problem. We report experimental results demonstrating
    the scalability of our symbolic (SAT-based) approach.
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: Jessica
  full_name: Davies, Jessica
  id: 378E0060-F248-11E8-B48F-1D18A9856A87
  last_name: Davies
citation:
  ama: Chatterjee K, Chmelik M, Davies J. <i>A Symbolic SAT-Based Algorithm for Almost-Sure
    Reachability with Small Strategies in POMDPs</i>. IST Austria; 2015. doi:<a href="https://doi.org/10.15479/AT:IST-2015-325-v2-1">10.15479/AT:IST-2015-325-v2-1</a>
  apa: Chatterjee, K., Chmelik, M., &#38; Davies, J. (2015). <i>A symbolic SAT-based
    algorithm for almost-sure reachability with small strategies in POMDPs</i>. IST
    Austria. <a href="https://doi.org/10.15479/AT:IST-2015-325-v2-1">https://doi.org/10.15479/AT:IST-2015-325-v2-1</a>
  chicago: Chatterjee, Krishnendu, Martin Chmelik, and Jessica Davies. <i>A Symbolic
    SAT-Based Algorithm for Almost-Sure Reachability with Small Strategies in POMDPs</i>.
    IST Austria, 2015. <a href="https://doi.org/10.15479/AT:IST-2015-325-v2-1">https://doi.org/10.15479/AT:IST-2015-325-v2-1</a>.
  ieee: K. Chatterjee, M. Chmelik, and J. Davies, <i>A symbolic SAT-based algorithm
    for almost-sure reachability with small strategies in POMDPs</i>. IST Austria,
    2015.
  ista: Chatterjee K, Chmelik M, Davies J. 2015. A symbolic SAT-based algorithm for
    almost-sure reachability with small strategies in POMDPs, IST Austria, 23p.
  mla: Chatterjee, Krishnendu, et al. <i>A Symbolic SAT-Based Algorithm for Almost-Sure
    Reachability with Small Strategies in POMDPs</i>. IST Austria, 2015, doi:<a href="https://doi.org/10.15479/AT:IST-2015-325-v2-1">10.15479/AT:IST-2015-325-v2-1</a>.
  short: K. Chatterjee, M. Chmelik, J. Davies, A Symbolic SAT-Based Algorithm for
    Almost-Sure Reachability with Small Strategies in POMDPs, IST Austria, 2015.
date_created: 2018-12-12T11:39:22Z
date_published: 2015-11-06T00:00:00Z
date_updated: 2023-02-21T16:24:05Z
day: '06'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2015-325-v2-1
file:
- access_level: open_access
  checksum: f0fa31ad8161ed655137e94012123ef9
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:05Z
  date_updated: 2020-07-14T12:46:57Z
  file_id: '5466'
  file_name: IST-2015-325-v2+1_main.pdf
  file_size: 412379
  relation: main_file
file_date_updated: 2020-07-14T12:46:57Z
has_accepted_license: '1'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: '23'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '362'
related_material:
  record:
  - id: '1166'
    relation: later_version
    status: public
status: public
title: A symbolic SAT-based algorithm for almost-sure reachability with small strategies
  in POMDPs
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '5444'
abstract:
- lang: eng
  text: A comprehensive understanding of the clonal evolution of cancer is critical
    for understanding neoplasia. Genome-wide sequencing data enables evolutionary
    studies at unprecedented depth. However, classical phylogenetic methods often
    struggle with noisy sequencing data of impure DNA samples and fail to detect subclones
    that have different evolutionary trajectories. We have developed a tool, called
    Treeomics, that allows us to reconstruct the phylogeny of a cancer with commonly
    available sequencing technologies. Using Bayesian inference and Integer Linear
    Programming, robust phylogenies consistent with the biological processes underlying
    cancer evolution were obtained for pancreatic, ovarian, and prostate cancers.
    Furthermore, Treeomics correctly identified sequencing artifacts such as those
    resulting from low statistical power; nearly 7% of variants were misclassified
    by conventional statistical methods. These artifacts can skew phylogenies by creating
    illusory tumor heterogeneity among distinct samples. Importantly, we show that
    the evolutionary trees generated with Treeomics are mathematically optimal.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Johannes
  full_name: Reiter, Johannes
  id: 4A918E98-F248-11E8-B48F-1D18A9856A87
  last_name: Reiter
  orcid: 0000-0002-0170-7353
- first_name: Alvin
  full_name: Makohon-Moore, Alvin
  last_name: Makohon-Moore
- first_name: Jeffrey
  full_name: Gerold, Jeffrey
  last_name: Gerold
- first_name: Ivana
  full_name: Bozic, Ivana
  last_name: Bozic
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Christine
  full_name: Iacobuzio-Donahue, Christine
  last_name: Iacobuzio-Donahue
- first_name: Bert
  full_name: Vogelstein, Bert
  last_name: Vogelstein
- first_name: Martin
  full_name: Nowak, Martin
  last_name: Nowak
citation:
  ama: Reiter J, Makohon-Moore A, Gerold J, et al. <i>Reconstructing Robust Phylogenies
    of Metastatic Cancers</i>. IST Austria; 2015. doi:<a href="https://doi.org/10.15479/AT:IST-2015-399-v1-1">10.15479/AT:IST-2015-399-v1-1</a>
  apa: Reiter, J., Makohon-Moore, A., Gerold, J., Bozic, I., Chatterjee, K., Iacobuzio-Donahue,
    C., … Nowak, M. (2015). <i>Reconstructing robust phylogenies of metastatic cancers</i>.
    IST Austria. <a href="https://doi.org/10.15479/AT:IST-2015-399-v1-1">https://doi.org/10.15479/AT:IST-2015-399-v1-1</a>
  chicago: Reiter, Johannes, Alvin Makohon-Moore, Jeffrey Gerold, Ivana Bozic, Krishnendu
    Chatterjee, Christine Iacobuzio-Donahue, Bert Vogelstein, and Martin Nowak. <i>Reconstructing
    Robust Phylogenies of Metastatic Cancers</i>. IST Austria, 2015. <a href="https://doi.org/10.15479/AT:IST-2015-399-v1-1">https://doi.org/10.15479/AT:IST-2015-399-v1-1</a>.
  ieee: J. Reiter <i>et al.</i>, <i>Reconstructing robust phylogenies of metastatic
    cancers</i>. IST Austria, 2015.
  ista: Reiter J, Makohon-Moore A, Gerold J, Bozic I, Chatterjee K, Iacobuzio-Donahue
    C, Vogelstein B, Nowak M. 2015. Reconstructing robust phylogenies of metastatic
    cancers, IST Austria, 25p.
  mla: Reiter, Johannes, et al. <i>Reconstructing Robust Phylogenies of Metastatic
    Cancers</i>. IST Austria, 2015, doi:<a href="https://doi.org/10.15479/AT:IST-2015-399-v1-1">10.15479/AT:IST-2015-399-v1-1</a>.
  short: J. Reiter, A. Makohon-Moore, J. Gerold, I. Bozic, K. Chatterjee, C. Iacobuzio-Donahue,
    B. Vogelstein, M. Nowak, Reconstructing Robust Phylogenies of Metastatic Cancers,
    IST Austria, 2015.
date_created: 2018-12-12T11:39:22Z
date_published: 2015-12-30T00:00:00Z
date_updated: 2020-07-14T23:05:07Z
day: '30'
ddc:
- '000'
- '576'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2015-399-v1-1
file:
- access_level: open_access
  checksum: c47d33bdda06181753c0af36f16e7b5d
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:24Z
  date_updated: 2020-07-14T12:46:58Z
  file_id: '5485'
  file_name: IST-2015-399-v1+1_treeomics.pdf
  file_size: 3533200
  relation: main_file
file_date_updated: 2020-07-14T12:46:58Z
has_accepted_license: '1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: '25'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '399'
status: public
title: Reconstructing robust phylogenies of metastatic cancers
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '5549'
abstract:
- lang: eng
  text: "This repository contains the experimental part of the CAV 2015 publication
    Counterexample Explanation by Learning Small Strategies in Markov Decision Processes.\r\nWe
    extended the probabilistic model checker PRISM to represent strategies of Markov
    Decision Processes as Decision Trees.\r\nThe archive contains a java executable
    version of the extended tool (prism_dectree.jar) together with a few examples
    of the PRISM benchmark library.\r\nTo execute the program, please have a look
    at the README.txt, which provides instructions and further information on the
    archive.\r\nThe archive contains scripts that (if run often enough) reproduces
    the data presented in the publication."
article_processing_charge: No
author:
- first_name: Andreas
  full_name: Fellner, Andreas
  id: 42BABFB4-F248-11E8-B48F-1D18A9856A87
  last_name: Fellner
citation:
  ama: 'Fellner A. Experimental part of CAV 2015 publication: Counterexample Explanation
    by Learning Small Strategies in Markov Decision Processes. 2015. doi:<a href="https://doi.org/10.15479/AT:ISTA:28">10.15479/AT:ISTA:28</a>'
  apa: 'Fellner, A. (2015). Experimental part of CAV 2015 publication: Counterexample
    Explanation by Learning Small Strategies in Markov Decision Processes. Institute
    of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:28">https://doi.org/10.15479/AT:ISTA:28</a>'
  chicago: 'Fellner, Andreas. “Experimental Part of CAV 2015 Publication: Counterexample
    Explanation by Learning Small Strategies in Markov Decision Processes.” Institute
    of Science and Technology Austria, 2015. <a href="https://doi.org/10.15479/AT:ISTA:28">https://doi.org/10.15479/AT:ISTA:28</a>.'
  ieee: 'A. Fellner, “Experimental part of CAV 2015 publication: Counterexample Explanation
    by Learning Small Strategies in Markov Decision Processes.” Institute of Science
    and Technology Austria, 2015.'
  ista: 'Fellner A. 2015. Experimental part of CAV 2015 publication: Counterexample
    Explanation by Learning Small Strategies in Markov Decision Processes, Institute
    of Science and Technology Austria, <a href="https://doi.org/10.15479/AT:ISTA:28">10.15479/AT:ISTA:28</a>.'
  mla: 'Fellner, Andreas. <i>Experimental Part of CAV 2015 Publication: Counterexample
    Explanation by Learning Small Strategies in Markov Decision Processes</i>. Institute
    of Science and Technology Austria, 2015, doi:<a href="https://doi.org/10.15479/AT:ISTA:28">10.15479/AT:ISTA:28</a>.'
  short: A. Fellner, (2015).
contributor:
- first_name: Jan
  id: 44CEF464-F248-11E8-B48F-1D18A9856A87
  last_name: Kretinsky
datarep_id: '28'
date_created: 2018-12-12T12:31:29Z
date_published: 2015-08-13T00:00:00Z
date_updated: 2024-02-21T13:52:07Z
day: '13'
ddc:
- '004'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:ISTA:28
ec_funded: 1
file:
- access_level: open_access
  checksum: b8bcb43c0893023cda66c1b69c16ac62
  content_type: application/zip
  creator: system
  date_created: 2018-12-12T13:02:31Z
  date_updated: 2020-07-14T12:47:00Z
  file_id: '5597'
  file_name: IST-2015-28-v1+2_Fellner_DataRep.zip
  file_size: 49557109
  relation: main_file
file_date_updated: 2020-07-14T12:47:00Z
has_accepted_license: '1'
keyword:
- Markov Decision Process
- Decision Tree
- Probabilistic Verification
- Counterexample Explanation
license: https://creativecommons.org/publicdomain/zero/1.0/
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
publisher: Institute of Science and Technology Austria
publist_id: '5564'
related_material:
  record:
  - id: '1603'
    relation: popular_science
    status: public
status: public
title: 'Experimental part of CAV 2015 publication: Counterexample Explanation by Learning
  Small Strategies in Markov Decision Processes'
tmp:
  image: /images/cc_0.png
  legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
  name: Creative Commons Public Domain Dedication (CC0 1.0)
  short: CC0 (1.0)
type: research_data
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '10796'
abstract:
- lang: eng
  text: 'We consider concurrent mean-payoff games, a very well-studied class of two-player
    (player 1 vs player 2) zero-sum games on finite-state graphs where every transition
    is assigned a reward between 0 and 1, and the payoff function is the long-run
    average of the rewards. The value is the maximal expected payoff that player 1
    can guarantee against all strategies of player 2. We consider the computation
    of the set of states with value 1 under finite-memory strategies for player 1,
    and our main results for the problem are as follows: (1) we present a polynomial-time
    algorithm; (2) we show that whenever there is a finite-memory strategy, there
    is a stationary strategy that does not need memory at all; and (3) we present
    an optimal bound (which is double exponential) on the patience of stationary strategies
    (where patience of a distribution is the inverse of the smallest positive probability
    and represents a complexity measure of a stationary strategy).'
acknowledgement: "The research was partly supported by FWF Grant No P 23499-N23, FWF
  NFN Grant\r\nNo S11407-N23 (RiSE), ERC Start grant (279307: Graph Games), and Microsoft
  faculty fellows award."
article_processing_charge: No
arxiv: 1
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: 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. The value 1 problem under finite-memory strategies
    for concurrent mean-payoff games. In: <i>Proceedings of the Twenty-Sixth Annual
    ACM-SIAM Symposium on Discrete Algorithms</i>. Vol 2015. SIAM; 2015:1018-1029.
    doi:<a href="https://doi.org/10.1137/1.9781611973730.69">10.1137/1.9781611973730.69</a>'
  apa: 'Chatterjee, K., &#38; Ibsen-Jensen, R. (2015). The value 1 problem under finite-memory
    strategies for concurrent mean-payoff games. In <i>Proceedings of the Twenty-Sixth
    Annual ACM-SIAM Symposium on Discrete Algorithms</i> (Vol. 2015, pp. 1018–1029).
    San Diego, CA, United States: SIAM. <a href="https://doi.org/10.1137/1.9781611973730.69">https://doi.org/10.1137/1.9781611973730.69</a>'
  chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “The Value 1 Problem under
    Finite-Memory Strategies for Concurrent Mean-Payoff Games.” In <i>Proceedings
    of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms</i>, 2015:1018–29.
    SIAM, 2015. <a href="https://doi.org/10.1137/1.9781611973730.69">https://doi.org/10.1137/1.9781611973730.69</a>.
  ieee: K. Chatterjee and R. Ibsen-Jensen, “The value 1 problem under finite-memory
    strategies for concurrent mean-payoff games,” in <i>Proceedings of the Twenty-Sixth
    Annual ACM-SIAM Symposium on Discrete Algorithms</i>, San Diego, CA, United States,
    2015, vol. 2015, no. 1, pp. 1018–1029.
  ista: 'Chatterjee K, Ibsen-Jensen R. 2015. The value 1 problem under finite-memory
    strategies for concurrent mean-payoff games. Proceedings of the Twenty-Sixth Annual
    ACM-SIAM Symposium on Discrete Algorithms. SODA: Symposium on Discrete Algorithms
    vol. 2015, 1018–1029.'
  mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “The Value 1 Problem under
    Finite-Memory Strategies for Concurrent Mean-Payoff Games.” <i>Proceedings of
    the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms</i>, vol. 2015,
    no. 1, SIAM, 2015, pp. 1018–29, doi:<a href="https://doi.org/10.1137/1.9781611973730.69">10.1137/1.9781611973730.69</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, in:, Proceedings of the Twenty-Sixth Annual
    ACM-SIAM Symposium on Discrete Algorithms, SIAM, 2015, pp. 1018–1029.
conference:
  end_date: 2015-01-06
  location: San Diego, CA, United States
  name: 'SODA: Symposium on Discrete Algorithms'
  start_date: 2015-01-04
date_created: 2022-02-25T12:18:43Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2022-02-25T12:33:32Z
day: '01'
department:
- _id: KrCh
doi: 10.1137/1.9781611973730.69
ec_funded: 1
external_id:
  arxiv:
  - '1409.6690'
intvolume: '      2015'
issue: '1'
language:
- iso: eng
month: '01'
oa_version: Preprint
page: 1018-1029
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: Proceedings of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete
  Algorithms
publication_identifier:
  isbn:
  - 978-161197374-7
publication_status: published
publisher: SIAM
quality_controlled: '1'
scopus_import: '1'
status: public
title: The value 1 problem under finite-memory strategies for concurrent mean-payoff
  games
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2015
year: '2015'
...
---
_id: '523'
abstract:
- lang: eng
  text: We consider two-player games played on weighted directed graphs with mean-payoff
    and total-payoff objectives, two classical quantitative objectives. While for
    single-dimensional games the complexity and memory bounds for both objectives
    coincide, we show that in contrast to multi-dimensional mean-payoff games that
    are known to be coNP-complete, multi-dimensional total-payoff games are undecidable.
    We introduce conservative approximations of these objectives, where the payoff
    is considered over a local finite window sliding along a play, instead of the
    whole play. For single dimension, we show that (i) if the window size is polynomial,
    deciding the winner takes polynomial time, and (ii) the existence of a bounded
    window can be decided in NP ∩ coNP, and is at least as hard as solving mean-payoff
    games. For multiple dimensions, we show that (i) the problem with fixed window
    size is EXPTIME-complete, and (ii) there is no primitive-recursive algorithm to
    decide the existence of a bounded window.
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: Mickael
  full_name: Randour, Mickael
  last_name: Randour
- first_name: Jean
  full_name: Raskin, Jean
  last_name: Raskin
citation:
  ama: Chatterjee K, Doyen L, Randour M, Raskin J. Looking at mean-payoff and total-payoff
    through windows. <i>Information and Computation</i>. 2015;242(6):25-52. doi:<a
    href="https://doi.org/10.1016/j.ic.2015.03.010">10.1016/j.ic.2015.03.010</a>
  apa: Chatterjee, K., Doyen, L., Randour, M., &#38; Raskin, J. (2015). Looking at
    mean-payoff and total-payoff through windows. <i>Information and Computation</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.ic.2015.03.010">https://doi.org/10.1016/j.ic.2015.03.010</a>
  chicago: Chatterjee, Krishnendu, Laurent Doyen, Mickael Randour, and Jean Raskin.
    “Looking at Mean-Payoff and Total-Payoff through Windows.” <i>Information and
    Computation</i>. Elsevier, 2015. <a href="https://doi.org/10.1016/j.ic.2015.03.010">https://doi.org/10.1016/j.ic.2015.03.010</a>.
  ieee: K. Chatterjee, L. Doyen, M. Randour, and J. Raskin, “Looking at mean-payoff
    and total-payoff through windows,” <i>Information and Computation</i>, vol. 242,
    no. 6. Elsevier, pp. 25–52, 2015.
  ista: Chatterjee K, Doyen L, Randour M, Raskin J. 2015. Looking at mean-payoff and
    total-payoff through windows. Information and Computation. 242(6), 25–52.
  mla: Chatterjee, Krishnendu, et al. “Looking at Mean-Payoff and Total-Payoff through
    Windows.” <i>Information and Computation</i>, vol. 242, no. 6, Elsevier, 2015,
    pp. 25–52, doi:<a href="https://doi.org/10.1016/j.ic.2015.03.010">10.1016/j.ic.2015.03.010</a>.
  short: K. Chatterjee, L. Doyen, M. Randour, J. Raskin, Information and Computation
    242 (2015) 25–52.
date_created: 2018-12-11T11:46:57Z
date_published: 2015-03-24T00:00:00Z
date_updated: 2023-02-23T10:36:02Z
day: '24'
department:
- _id: KrCh
doi: 10.1016/j.ic.2015.03.010
ec_funded: 1
intvolume: '       242'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1302.4248
month: '03'
oa: 1
oa_version: Preprint
page: 25 - 52
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: Information and Computation
publication_status: published
publisher: Elsevier
publist_id: '7296'
quality_controlled: '1'
related_material:
  record:
  - id: '2279'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Looking at mean-payoff and total-payoff through windows
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 242
year: '2015'
...
---
_id: '524'
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 each 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 of 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 that 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 turn-based deterministic mean-payoff
    games) that is not known to be solvable in polynomial time.'
arxiv: 1
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: 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. Qualitative analysis of concurrent mean payoff
    games. <i>Information and Computation</i>. 2015;242(6):2-24. doi:<a href="https://doi.org/10.1016/j.ic.2015.03.009">10.1016/j.ic.2015.03.009</a>
  apa: Chatterjee, K., &#38; Ibsen-Jensen, R. (2015). Qualitative analysis of concurrent
    mean payoff games. <i>Information and Computation</i>. Elsevier. <a href="https://doi.org/10.1016/j.ic.2015.03.009">https://doi.org/10.1016/j.ic.2015.03.009</a>
  chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “Qualitative Analysis
    of Concurrent Mean Payoff Games.” <i>Information and Computation</i>. Elsevier,
    2015. <a href="https://doi.org/10.1016/j.ic.2015.03.009">https://doi.org/10.1016/j.ic.2015.03.009</a>.
  ieee: K. Chatterjee and R. Ibsen-Jensen, “Qualitative analysis of concurrent mean
    payoff games,” <i>Information and Computation</i>, vol. 242, no. 6. Elsevier,
    pp. 2–24, 2015.
  ista: Chatterjee K, Ibsen-Jensen R. 2015. Qualitative analysis of concurrent mean
    payoff games. Information and Computation. 242(6), 2–24.
  mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “Qualitative Analysis of Concurrent
    Mean Payoff Games.” <i>Information and Computation</i>, vol. 242, no. 6, Elsevier,
    2015, pp. 2–24, doi:<a href="https://doi.org/10.1016/j.ic.2015.03.009">10.1016/j.ic.2015.03.009</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, Information and Computation 242 (2015) 2–24.
date_created: 2018-12-11T11:46:57Z
date_published: 2015-10-11T00:00:00Z
date_updated: 2023-02-23T12:24:45Z
day: '11'
department:
- _id: KrCh
doi: 10.1016/j.ic.2015.03.009
external_id:
  arxiv:
  - '1409.5306'
intvolume: '       242'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1409.5306
month: '10'
oa: 1
oa_version: Preprint
page: 2 - 24
publication: Information and Computation
publication_status: published
publisher: Elsevier
publist_id: '7295'
quality_controlled: '1'
related_material:
  record:
  - id: '5403'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Qualitative analysis of concurrent mean payoff games
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 242
year: '2015'
...
---
_id: '1733'
abstract:
- lang: eng
  text: The classical (boolean) notion of refinement for behavioral interfaces of
    system components is the alternating refinement preorder. In this paper, we define
    a distance for interfaces, called interface simulation distance. It makes the
    alternating refinement preorder quantitative by, intuitively, tolerating errors
    (while counting them) in the alternating simulation game. We show that the interface
    simulation distance satisfies the triangle inequality, that the distance between
    two interfaces does not increase under parallel composition with a third interface,
    that the distance between two interfaces can be bounded from above and below by
    distances between abstractions of the two interfaces, and how to synthesize an
    interface from incompatible requirements. We illustrate the framework, and the
    properties of the distances under composition of interfaces, with two case studies.
author:
- first_name: Pavol
  full_name: Cerny, Pavol
  last_name: Cerny
- first_name: Martin
  full_name: Chmelik, Martin
  id: 3624234E-F248-11E8-B48F-1D18A9856A87
  last_name: Chmelik
- 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, Chmelik M, Henzinger TA, Radhakrishna A. Interface simulation distances.
    <i>Theoretical Computer Science</i>. 2014;560(3):348-363. doi:<a href="https://doi.org/10.1016/j.tcs.2014.08.019">10.1016/j.tcs.2014.08.019</a>
  apa: Cerny, P., Chmelik, M., Henzinger, T. A., &#38; Radhakrishna, A. (2014). Interface
    simulation distances. <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/j.tcs.2014.08.019">https://doi.org/10.1016/j.tcs.2014.08.019</a>
  chicago: Cerny, Pavol, Martin Chmelik, Thomas A Henzinger, and Arjun Radhakrishna.
    “Interface Simulation Distances.” <i>Theoretical Computer Science</i>. Elsevier,
    2014. <a href="https://doi.org/10.1016/j.tcs.2014.08.019">https://doi.org/10.1016/j.tcs.2014.08.019</a>.
  ieee: P. Cerny, M. Chmelik, T. A. Henzinger, and A. Radhakrishna, “Interface simulation
    distances,” <i>Theoretical Computer Science</i>, vol. 560, no. 3. Elsevier, pp.
    348–363, 2014.
  ista: Cerny P, Chmelik M, Henzinger TA, Radhakrishna A. 2014. Interface simulation
    distances. Theoretical Computer Science. 560(3), 348–363.
  mla: Cerny, Pavol, et al. “Interface Simulation Distances.” <i>Theoretical Computer
    Science</i>, vol. 560, no. 3, Elsevier, 2014, pp. 348–63, doi:<a href="https://doi.org/10.1016/j.tcs.2014.08.019">10.1016/j.tcs.2014.08.019</a>.
  short: P. Cerny, M. Chmelik, T.A. Henzinger, A. Radhakrishna, Theoretical Computer
    Science 560 (2014) 348–363.
date_created: 2018-12-11T11:53:43Z
date_published: 2014-12-04T00:00:00Z
date_updated: 2023-02-23T11:04:00Z
day: '04'
department:
- _id: ToHe
- _id: KrCh
doi: 10.1016/j.tcs.2014.08.019
ec_funded: 1
intvolume: '       560'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1210.2450
month: '12'
oa: 1
oa_version: Submitted Version
page: 348 - 363
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11402-N23
  name: Moderne Concurrency Paradigms
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11407
  name: Game Theory
- _id: 2584A770-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P 23499-N23
  name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
  name: Microsoft Research Faculty Fellowship
publication: Theoretical Computer Science
publication_status: published
publisher: Elsevier
publist_id: '5392'
quality_controlled: '1'
related_material:
  record:
  - id: '2916'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Interface simulation distances
type: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 560
year: '2014'
...
---
_id: '1853'
abstract:
- lang: eng
  text: Wireless sensor networks (WSNs) composed of low-power, low-cost sensor nodes
    are expected to form the backbone of future intelligent networks for a broad range
    of civil, industrial and military applications. These sensor nodes are often deployed
    through random spreading, and function in dynamic environments. Many applications
    of WSNs such as pollution tracking, forest fire detection, and military surveillance
    require knowledge of the location of constituent nodes. But the use of technologies
    such as GPS on all nodes is prohibitive due to power and cost constraints. So,
    the sensor nodes need to autonomously determine their locations. Most localization
    techniques use anchor nodes with known locations to determine the position of
    remaining nodes. Localization techniques have two conflicting requirements. On
    one hand, an ideal localization technique should be computationally simple and
    on the other hand, it must be resistant to attacks that compromise anchor nodes.
    In this paper, we propose a computationally light-weight game theoretic secure
    localization technique and demonstrate its effectiveness in comparison to existing
    techniques.
author:
- first_name: Susmit
  full_name: Jha, Susmit
  last_name: Jha
- first_name: Stavros
  full_name: Tripakis, Stavros
  last_name: Tripakis
- first_name: Sanjit
  full_name: Seshia, Sanjit
  last_name: Seshia
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
citation:
  ama: 'Jha S, Tripakis S, Seshia S, Chatterjee K. Game theoretic secure localization
    in wireless sensor networks. In: IEEE; 2014:85-90. doi:<a href="https://doi.org/10.1109/IOT.2014.7030120">10.1109/IOT.2014.7030120</a>'
  apa: 'Jha, S., Tripakis, S., Seshia, S., &#38; Chatterjee, K. (2014). Game theoretic
    secure localization in wireless sensor networks (pp. 85–90). Presented at the
    IOT: Internet of Things, Cambridge, USA: IEEE. <a href="https://doi.org/10.1109/IOT.2014.7030120">https://doi.org/10.1109/IOT.2014.7030120</a>'
  chicago: Jha, Susmit, Stavros Tripakis, Sanjit Seshia, and Krishnendu Chatterjee.
    “Game Theoretic Secure Localization in Wireless Sensor Networks,” 85–90. IEEE,
    2014. <a href="https://doi.org/10.1109/IOT.2014.7030120">https://doi.org/10.1109/IOT.2014.7030120</a>.
  ieee: 'S. Jha, S. Tripakis, S. Seshia, and K. Chatterjee, “Game theoretic secure
    localization in wireless sensor networks,” presented at the IOT: Internet of Things,
    Cambridge, USA, 2014, pp. 85–90.'
  ista: 'Jha S, Tripakis S, Seshia S, Chatterjee K. 2014. Game theoretic secure localization
    in wireless sensor networks. IOT: Internet of Things, 85–90.'
  mla: Jha, Susmit, et al. <i>Game Theoretic Secure Localization in Wireless Sensor
    Networks</i>. IEEE, 2014, pp. 85–90, doi:<a href="https://doi.org/10.1109/IOT.2014.7030120">10.1109/IOT.2014.7030120</a>.
  short: S. Jha, S. Tripakis, S. Seshia, K. Chatterjee, in:, IEEE, 2014, pp. 85–90.
conference:
  end_date: 2014-10-08
  location: Cambridge, USA
  name: 'IOT: Internet of Things'
  start_date: 2014-10-06
date_created: 2018-12-11T11:54:22Z
date_published: 2014-02-03T00:00:00Z
date_updated: 2021-01-12T06:53:38Z
day: '03'
department:
- _id: KrCh
doi: 10.1109/IOT.2014.7030120
language:
- iso: eng
month: '02'
oa_version: None
page: 85 - 90
publication_status: published
publisher: IEEE
publist_id: '5247'
quality_controlled: '1'
status: public
title: Game theoretic secure localization in wireless sensor networks
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '1884'
abstract:
- lang: eng
  text: Unbiased high-throughput massively parallel sequencing methods have transformed
    the process of discovery of novel putative driver gene mutations in cancer. In
    chronic lymphocytic leukemia (CLL), these methods have yielded several unexpected
    findings, including the driver genes SF3B1, NOTCH1 and POT1. Recent analysis,
    utilizing down-sampling of existing datasets, has shown that the discovery process
    of putative drivers is far from complete across cancer. In CLL, while driver gene
    mutations affecting >10% of patients were efficiently discovered with previously
    published CLL cohorts of up to 160 samples subjected to whole exome sequencing
    (WES), this sample size has only 0.78 power to detect drivers affecting 5% of
    patients, and only 0.12 power for drivers affecting 2% of patients. These calculations
    emphasize the need to apply unbiased WES to larger patient cohorts.
author:
- first_name: Dan
  full_name: Landau, Dan
  last_name: Landau
- first_name: Chip
  full_name: Stewart, Chip
  last_name: Stewart
- first_name: Johannes
  full_name: Reiter, Johannes
  id: 4A918E98-F248-11E8-B48F-1D18A9856A87
  last_name: Reiter
  orcid: 0000-0002-0170-7353
- first_name: Michael
  full_name: Lawrence, Michael
  last_name: Lawrence
- first_name: Carrie
  full_name: Sougnez, Carrie
  last_name: Sougnez
- first_name: Jennifer
  full_name: Brown, Jennifer
  last_name: Brown
- first_name: Armando
  full_name: Lopez Guillermo, Armando
  last_name: Lopez Guillermo
- first_name: Stacey
  full_name: Gabriel, Stacey
  last_name: Gabriel
- first_name: Eric
  full_name: Lander, Eric
  last_name: Lander
- first_name: Donna
  full_name: Neuberg, Donna
  last_name: Neuberg
- first_name: Carlos
  full_name: López Otín, Carlos
  last_name: López Otín
- first_name: Elias
  full_name: Campo, Elias
  last_name: Campo
- first_name: Gad
  full_name: Getz, Gad
  last_name: Getz
- first_name: Catherine
  full_name: Wu, Catherine
  last_name: Wu
citation:
  ama: 'Landau D, Stewart C, Reiter J, et al. Novel putative driver gene mutations
    in chronic lymphocytic leukemia (CLL): results from a combined analysis of whole
    exome sequencing of 262 primary CLL aamples. <i>Blood</i>. 2014;124(21):1952-1952.'
  apa: 'Landau, D., Stewart, C., Reiter, J., Lawrence, M., Sougnez, C., Brown, J.,
    … Wu, C. (2014). Novel putative driver gene mutations in chronic lymphocytic leukemia
    (CLL): results from a combined analysis of whole exome sequencing of 262 primary
    CLL aamples. <i>Blood</i>. American Society of Hematology.'
  chicago: 'Landau, Dan, Chip Stewart, Johannes Reiter, Michael Lawrence, Carrie Sougnez,
    Jennifer Brown, Armando Lopez Guillermo, et al. “Novel Putative Driver Gene Mutations
    in Chronic Lymphocytic Leukemia (CLL): Results from a Combined Analysis of Whole
    Exome Sequencing of 262 Primary CLL Aamples.” <i>Blood</i>. American Society of
    Hematology, 2014.'
  ieee: 'D. Landau <i>et al.</i>, “Novel putative driver gene mutations in chronic
    lymphocytic leukemia (CLL): results from a combined analysis of whole exome sequencing
    of 262 primary CLL aamples,” <i>Blood</i>, vol. 124, no. 21. American Society
    of Hematology, pp. 1952–1952, 2014.'
  ista: 'Landau D, Stewart C, Reiter J, Lawrence M, Sougnez C, Brown J, Lopez Guillermo
    A, Gabriel S, Lander E, Neuberg D, López Otín C, Campo E, Getz G, Wu C. 2014.
    Novel putative driver gene mutations in chronic lymphocytic leukemia (CLL): results
    from a combined analysis of whole exome sequencing of 262 primary CLL aamples.
    Blood. 124(21), 1952–1952.'
  mla: 'Landau, Dan, et al. “Novel Putative Driver Gene Mutations in Chronic Lymphocytic
    Leukemia (CLL): Results from a Combined Analysis of Whole Exome Sequencing of
    262 Primary CLL Aamples.” <i>Blood</i>, vol. 124, no. 21, American Society of
    Hematology, 2014, pp. 1952–1952.'
  short: D. Landau, C. Stewart, J. Reiter, M. Lawrence, C. Sougnez, J. Brown, A. Lopez
    Guillermo, S. Gabriel, E. Lander, D. Neuberg, C. López Otín, E. Campo, G. Getz,
    C. Wu, Blood 124 (2014) 1952–1952.
date_created: 2018-12-11T11:54:32Z
date_published: 2014-12-04T00:00:00Z
date_updated: 2021-01-12T06:53:50Z
day: '04'
department:
- _id: KrCh
intvolume: '       124'
issue: '21'
language:
- iso: eng
main_file_link:
- url: http://www.bloodjournal.org/content/124/21/1952?sso-checked=true
month: '12'
oa_version: None
page: 1952 - 1952
publication: Blood
publication_status: published
publisher: American Society of Hematology
publist_id: '5211'
status: public
title: 'Novel putative driver gene mutations in chronic lymphocytic leukemia (CLL):
  results from a combined analysis of whole exome sequencing of 262 primary CLL aamples'
type: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 124
year: '2014'
...
---
_id: '1903'
abstract:
- lang: eng
  text: 'We consider two-player zero-sum partial-observation stochastic games on graphs.
    Based on the information available to the players these games can be classified
    as follows: (a) general partial-observation (both players have partial view of
    the game); (b) one-sided partial-observation (one player has partial-observation
    and the other player has complete-observation); and (c) perfect-observation (both
    players have complete view of the game). The one-sided partial-observation games
    subsumes the important special case of one-player partial-observation stochastic
    games (or partial-observation Markov decision processes (POMDPs)). Based on the
    randomization available for the strategies, (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. We consider all these
    classes of games with reachability, and parity objectives that can express all
    ω-regular objectives. The analysis problems are classified into the qualitative
    analysis that asks for the existence of a strategy that ensures the objective
    with probability 1; and the quantitative analysis that asks for the existence
    of a strategy that ensures the objective with probability at least λ (0,1). In
    this talk we will cover a wide range of results: for perfect-observation games;
    for POMDPs; for one-sided partial-observation games; and for general partial-observation
    games.'
alternative_title:
- LNCS
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
citation:
  ama: 'Chatterjee K. Partial-observation stochastic reachability and parity games.
    In: Vol 8634. Springer; 2014:1-4. doi:<a href="https://doi.org/10.1007/978-3-662-44522-8_1">10.1007/978-3-662-44522-8_1</a>'
  apa: 'Chatterjee, K. (2014). Partial-observation stochastic reachability and parity
    games (Vol. 8634, pp. 1–4). Presented at the MFCS: Mathematical Foundations of
    Computer Science, Budapest, Hungary: Springer. <a href="https://doi.org/10.1007/978-3-662-44522-8_1">https://doi.org/10.1007/978-3-662-44522-8_1</a>'
  chicago: Chatterjee, Krishnendu. “Partial-Observation Stochastic Reachability and
    Parity Games,” 8634:1–4. Springer, 2014. <a href="https://doi.org/10.1007/978-3-662-44522-8_1">https://doi.org/10.1007/978-3-662-44522-8_1</a>.
  ieee: 'K. Chatterjee, “Partial-observation stochastic reachability and parity games,”
    presented at the MFCS: Mathematical Foundations of Computer Science, Budapest,
    Hungary, 2014, vol. 8634, no. PART 1, pp. 1–4.'
  ista: 'Chatterjee K. 2014. Partial-observation stochastic reachability and parity
    games. MFCS: Mathematical Foundations of Computer Science, LNCS, vol. 8634, 1–4.'
  mla: Chatterjee, Krishnendu. <i>Partial-Observation Stochastic Reachability and
    Parity Games</i>. Vol. 8634, no. PART 1, Springer, 2014, pp. 1–4, doi:<a href="https://doi.org/10.1007/978-3-662-44522-8_1">10.1007/978-3-662-44522-8_1</a>.
  short: K. Chatterjee, in:, Springer, 2014, pp. 1–4.
conference:
  end_date: 2014-08-29
  location: Budapest, Hungary
  name: 'MFCS: Mathematical Foundations of Computer Science'
  start_date: 2014-08-25
date_created: 2018-12-11T11:54:38Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2023-02-23T12:23:43Z
day: '01'
department:
- _id: KrCh
doi: 10.1007/978-3-662-44522-8_1
ec_funded: 1
intvolume: '      8634'
issue: PART 1
language:
- iso: eng
month: '01'
oa_version: None
page: 1 - 4
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_status: published
publisher: Springer
publist_id: '5192'
pubrep_id: '141'
quality_controlled: '1'
related_material:
  record:
  - id: '2211'
    relation: later_version
    status: public
  - id: '5381'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Partial-observation stochastic reachability and parity games
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8634
year: '2014'
...
---
_id: '2027'
abstract:
- lang: eng
  text: We present a general framework for applying machine-learning algorithms to
    the verification of Markov decision processes (MDPs). The primary goal of these
    techniques is to improve performance by avoiding an exhaustive exploration of
    the state space. Our framework focuses on probabilistic reachability, which is
    a core property for verification, and is illustrated through two distinct instantiations.
    The first assumes that full knowledge of the MDP is available, and performs a
    heuristic-driven partial exploration of the model, yielding precise lower and
    upper bounds on the required probability. The second tackles the case where we
    may only sample the MDP, and yields probabilistic guarantees, again in terms of
    both the lower and upper bounds, which provides efficient stopping criteria for
    the approximation. The latter is the first extension of statistical model checking
    for unbounded properties inMDPs. In contrast with other related techniques, our
    approach is not restricted to time-bounded (finite-horizon) or discounted properties,
    nor does it assume any particular properties of the MDP. We also show how our
    methods extend to LTL objectives. We present experimental results showing the
    performance of our framework on several examples.
acknowledgement: This research was funded in part by the European Research Council
  (ERC) under grant agreement 246967 (VERIWARE), by the EU FP7 project HIERATIC, by
  the Czech Science Foundation grant No P202/12/P612, by EPSRC project EP/K038575/1.
alternative_title:
- LNCS
author:
- first_name: Tomáš
  full_name: Brázdil, Tomáš
  last_name: Brázdil
- 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: Vojtěch
  full_name: Forejt, Vojtěch
  last_name: Forejt
- first_name: Jan
  full_name: Kretinsky, Jan
  id: 44CEF464-F248-11E8-B48F-1D18A9856A87
  last_name: Kretinsky
  orcid: 0000-0002-8122-2881
- first_name: Marta
  full_name: Kwiatkowska, Marta
  last_name: Kwiatkowska
- first_name: David
  full_name: Parker, David
  last_name: Parker
- first_name: Mateusz
  full_name: Ujma, Mateusz
  last_name: Ujma
citation:
  ama: 'Brázdil T, Chatterjee K, Chmelik M, et al. Verification of markov decision
    processes using learning algorithms. In: Cassez F, Raskin J-F, eds. <i> Lecture
    Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence
    and Lecture Notes in Bioinformatics)</i>. Vol 8837. Society of Industrial and
    Applied Mathematics; 2014:98-114. doi:<a href="https://doi.org/10.1007/978-3-319-11936-6_8">10.1007/978-3-319-11936-6_8</a>'
  apa: 'Brázdil, T., Chatterjee, K., Chmelik, M., Forejt, V., Kretinsky, J., Kwiatkowska,
    M., … Ujma, M. (2014). Verification of markov decision processes using learning
    algorithms. In F. Cassez &#38; J.-F. Raskin (Eds.), <i> Lecture Notes in Computer
    Science (including subseries Lecture Notes in Artificial Intelligence and Lecture
    Notes in Bioinformatics)</i> (Vol. 8837, pp. 98–114). Sydney, Australia: Society
    of Industrial and Applied Mathematics. <a href="https://doi.org/10.1007/978-3-319-11936-6_8">https://doi.org/10.1007/978-3-319-11936-6_8</a>'
  chicago: Brázdil, Tomáš, Krishnendu Chatterjee, Martin Chmelik, Vojtěch Forejt,
    Jan Kretinsky, Marta Kwiatkowska, David Parker, and Mateusz Ujma. “Verification
    of Markov Decision Processes Using Learning Algorithms.” In <i> Lecture Notes
    in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence
    and Lecture Notes in Bioinformatics)</i>, edited by Franck Cassez and Jean-François
    Raskin, 8837:98–114. Society of Industrial and Applied Mathematics, 2014. <a href="https://doi.org/10.1007/978-3-319-11936-6_8">https://doi.org/10.1007/978-3-319-11936-6_8</a>.
  ieee: T. Brázdil <i>et al.</i>, “Verification of markov decision processes using
    learning algorithms,” in <i> Lecture Notes in Computer Science (including subseries
    Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)</i>,
    Sydney, Australia, 2014, vol. 8837, pp. 98–114.
  ista: 'Brázdil T, Chatterjee K, Chmelik M, Forejt V, Kretinsky J, Kwiatkowska M,
    Parker D, Ujma M. 2014. Verification of markov decision processes using learning
    algorithms.  Lecture Notes in Computer Science (including subseries Lecture Notes
    in Artificial Intelligence and Lecture Notes in Bioinformatics). ALENEX: Algorithm
    Engineering and Experiments, LNCS, vol. 8837, 98–114.'
  mla: Brázdil, Tomáš, et al. “Verification of Markov Decision Processes Using Learning
    Algorithms.” <i> Lecture Notes in Computer Science (Including Subseries Lecture
    Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)</i>, edited
    by Franck Cassez and Jean-François Raskin, vol. 8837, Society of Industrial and
    Applied Mathematics, 2014, pp. 98–114, doi:<a href="https://doi.org/10.1007/978-3-319-11936-6_8">10.1007/978-3-319-11936-6_8</a>.
  short: T. Brázdil, K. Chatterjee, M. Chmelik, V. Forejt, J. Kretinsky, M. Kwiatkowska,
    D. Parker, M. Ujma, in:, F. Cassez, J.-F. Raskin (Eds.),  Lecture Notes in Computer
    Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture
    Notes in Bioinformatics), Society of Industrial and Applied Mathematics, 2014,
    pp. 98–114.
conference:
  end_date: 2014-11-07
  location: Sydney, Australia
  name: 'ALENEX: Algorithm Engineering and Experiments'
  start_date: 2014-11-03
date_created: 2018-12-11T11:55:17Z
date_published: 2014-11-01T00:00:00Z
date_updated: 2021-01-12T06:54:49Z
day: '01'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1007/978-3-319-11936-6_8
ec_funded: 1
editor:
- first_name: Franck
  full_name: Cassez, Franck
  last_name: Cassez
- first_name: Jean-François
  full_name: Raskin, Jean-François
  last_name: Raskin
intvolume: '      8837'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1402.2967
month: '11'
oa: 1
oa_version: Submitted Version
page: 98 - 114
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
- _id: 26241A12-B435-11E9-9278-68D0E5697425
  grant_number: '24696'
  name: LIGHT-REGULATED LIGAND TRAPS FOR SPATIO-TEMPORAL INHIBITION OF CELL SIGNALING
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11402-N23
  name: Moderne Concurrency Paradigms
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11407
  name: Game Theory
- _id: 2584A770-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P 23499-N23
  name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 2587B514-B435-11E9-9278-68D0E5697425
  name: Microsoft Research Faculty Fellowship
publication: ' Lecture Notes in Computer Science (including subseries Lecture Notes
  in Artificial Intelligence and Lecture Notes in Bioinformatics)'
publication_status: published
publisher: Society of Industrial and Applied Mathematics
publist_id: '5046'
quality_controlled: '1'
status: public
title: Verification of markov decision processes using learning algorithms
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 8837
year: '2014'
...
---
_id: '2038'
abstract:
- lang: eng
  text: Recently, there has been an effort to add quantitative objectives to formal
    verification and synthesis. We introduce and investigate the extension of temporal
    logics with quantitative atomic assertions. At the heart of quantitative objectives
    lies the accumulation of values along a computation. It is often the accumulated
    sum, as with energy objectives, or the accumulated average, as with 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 (or Boolean) 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 in time. We also allow the path-accumulation assertions
    LimInfAvg(v) ≥ c and LimSupAvg(v) ≥ c, referring to the average value along an
    entire infinite computation. We study the border of decidability for such quantitative
    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 with
    both prefix-accumulation assertions, or extending LTL with both path-accumulation
    assertions, results in temporal logics whose model-checking problem is decidable.
    Moreover, the prefix-accumulation assertions may be generalized with &quot;controlled
    accumulation,&quot; allowing, for example, to specify constraints on the average
    waiting time between a request and a grant. On the negative side, we show that
    this branching-time logic is, in a sense, the maximal logic with one or both of
    the prefix-accumulation assertions that permits a decidable model-checking procedure.
    Extending a temporal logic that has the EG or EU modalities, such as CTL or LTL,
    makes the problem undecidable.
acknowledgement: The research was supported in part by ERC Starting grant 278410 (QUALITY).
article_number: '27'
article_processing_charge: No
article_type: original
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. Temporal specifications with
    accumulative values. <i>ACM Transactions on Computational Logic (TOCL)</i>. 2014;15(4).
    doi:<a href="https://doi.org/10.1145/2629686">10.1145/2629686</a>
  apa: Boker, U., Chatterjee, K., Henzinger, T. A., &#38; Kupferman, O. (2014). Temporal
    specifications with accumulative values. <i>ACM Transactions on Computational
    Logic (TOCL)</i>. ACM. <a href="https://doi.org/10.1145/2629686">https://doi.org/10.1145/2629686</a>
  chicago: Boker, Udi, Krishnendu Chatterjee, Thomas A Henzinger, and Orna Kupferman.
    “Temporal Specifications with Accumulative Values.” <i>ACM Transactions on Computational
    Logic (TOCL)</i>. ACM, 2014. <a href="https://doi.org/10.1145/2629686">https://doi.org/10.1145/2629686</a>.
  ieee: U. Boker, K. Chatterjee, T. A. Henzinger, and O. Kupferman, “Temporal specifications
    with accumulative values,” <i>ACM Transactions on Computational Logic (TOCL)</i>,
    vol. 15, no. 4. ACM, 2014.
  ista: Boker U, Chatterjee K, Henzinger TA, Kupferman O. 2014. Temporal specifications
    with accumulative values. ACM Transactions on Computational Logic (TOCL). 15(4),
    27.
  mla: Boker, Udi, et al. “Temporal Specifications with Accumulative Values.” <i>ACM
    Transactions on Computational Logic (TOCL)</i>, vol. 15, no. 4, 27, ACM, 2014,
    doi:<a href="https://doi.org/10.1145/2629686">10.1145/2629686</a>.
  short: U. Boker, K. Chatterjee, T.A. Henzinger, O. Kupferman, ACM Transactions on
    Computational Logic (TOCL) 15 (2014).
date_created: 2018-12-11T11:55:21Z
date_published: 2014-09-16T00:00:00Z
date_updated: 2023-02-23T12:23:54Z
day: '16'
ddc:
- '000'
- '004'
department:
- _id: ToHe
- _id: KrCh
doi: 10.1145/2629686
ec_funded: 1
file:
- access_level: open_access
  checksum: 354c41d37500b56320afce94cf9a99c2
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:10:59Z
  date_updated: 2020-07-14T12:45:26Z
  file_id: '4851'
  file_name: IST-2014-192-v1+1_AccumulativeValues.pdf
  file_size: 346184
  relation: main_file
file_date_updated: 2020-07-14T12:45:26Z
has_accepted_license: '1'
intvolume: '        15'
issue: '4'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Submitted Version
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P 23499-N23
  name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11402-N23
  name: Moderne Concurrency Paradigms
- _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: 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: ACM Transactions on Computational Logic (TOCL)
publication_status: published
publisher: ACM
publist_id: '5013'
pubrep_id: '192'
quality_controlled: '1'
related_material:
  record:
  - id: '3356'
    relation: earlier_version
    status: public
  - id: '5385'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Temporal specifications with accumulative values
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2014'
...
---
_id: '2039'
abstract:
- lang: eng
  text: 'A fundamental question in biology is the following: what is the time scale
    that is needed for evolutionary innovations? There are many results that characterize
    single steps in terms of the fixation time of new mutants arising in populations
    of certain size and structure. But here we ask a different question, which is
    concerned with the much longer time scale of evolutionary trajectories: how long
    does it take for a population exploring a fitness landscape to find target sequences
    that encode new biological functions? Our key variable is the length, (Formula
    presented.) of the genetic sequence that undergoes adaptation. In computer science
    there is a crucial distinction between problems that require algorithms which
    take polynomial or exponential time. The latter are considered to be intractable.
    Here we develop a theoretical approach that allows us to estimate the time of
    evolution as function of (Formula presented.) We show that adaptation on many
    fitness landscapes takes time that is exponential in (Formula presented.) even
    if there are broad selection gradients and many targets uniformly distributed
    in sequence space. These negative results lead us to search for specific mechanisms
    that allow evolution to work on polynomial time scales. We study a regeneration
    process and show that it enables evolution to work in polynomial time.'
article_number: 7p
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
- first_name: Ben
  full_name: Adlam, Ben
  last_name: Adlam
- first_name: Martin
  full_name: Nowak, Martin
  last_name: Nowak
citation:
  ama: Chatterjee K, Pavlogiannis A, Adlam B, Nowak M. The time scale of evolutionary
    innovation. <i>PLoS Computational Biology</i>. 2014;10(9). doi:<a href="https://doi.org/10.1371/journal.pcbi.1003818">10.1371/journal.pcbi.1003818</a>
  apa: Chatterjee, K., Pavlogiannis, A., Adlam, B., &#38; Nowak, M. (2014). The time
    scale of evolutionary innovation. <i>PLoS Computational Biology</i>. Public Library
    of Science. <a href="https://doi.org/10.1371/journal.pcbi.1003818">https://doi.org/10.1371/journal.pcbi.1003818</a>
  chicago: Chatterjee, Krishnendu, Andreas Pavlogiannis, Ben Adlam, and Martin Nowak.
    “The Time Scale of Evolutionary Innovation.” <i>PLoS Computational Biology</i>.
    Public Library of Science, 2014. <a href="https://doi.org/10.1371/journal.pcbi.1003818">https://doi.org/10.1371/journal.pcbi.1003818</a>.
  ieee: K. Chatterjee, A. Pavlogiannis, B. Adlam, and M. Nowak, “The time scale of
    evolutionary innovation,” <i>PLoS Computational Biology</i>, vol. 10, no. 9. Public
    Library of Science, 2014.
  ista: Chatterjee K, Pavlogiannis A, Adlam B, Nowak M. 2014. The time scale of evolutionary
    innovation. PLoS Computational Biology. 10(9), 7p.
  mla: Chatterjee, Krishnendu, et al. “The Time Scale of Evolutionary Innovation.”
    <i>PLoS Computational Biology</i>, vol. 10, no. 9, 7p, Public Library of Science,
    2014, doi:<a href="https://doi.org/10.1371/journal.pcbi.1003818">10.1371/journal.pcbi.1003818</a>.
  short: K. Chatterjee, A. Pavlogiannis, B. Adlam, M. Nowak, PLoS Computational Biology
    10 (2014).
date_created: 2018-12-11T11:55:22Z
date_published: 2014-09-11T00:00:00Z
date_updated: 2023-02-23T14:06:36Z
day: '11'
ddc:
- '510'
department:
- _id: KrCh
doi: 10.1371/journal.pcbi.1003818
ec_funded: 1
file:
- access_level: open_access
  checksum: 712d4c5787ddf97809cfc962507f0738
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:11:35Z
  date_updated: 2020-07-14T12:45:26Z
  file_id: '4890'
  file_name: IST-2016-440-v1+1_journal.pcbi.1003818.pdf
  file_size: 1399093
  relation: main_file
file_date_updated: 2020-07-14T12:45:26Z
has_accepted_license: '1'
intvolume: '        10'
issue: '9'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
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: PLoS Computational Biology
publication_status: published
publisher: Public Library of Science
publist_id: '5012'
pubrep_id: '440'
quality_controlled: '1'
related_material:
  record:
  - id: '9739'
    relation: research_data
    status: public
scopus_import: 1
status: public
title: The time scale of evolutionary innovation
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: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 10
year: '2014'
...
---
_id: '2052'
abstract:
- lang: eng
  text: A standard technique for solving the parameterized model checking problem
    is to reduce it to the classic model checking problem of finitely many finite-state
    systems. This work considers some of the theoretical power and limitations of
    this technique. We focus on concurrent systems in which processes communicate
    via pairwise rendezvous, as well as the special cases of disjunctive guards and
    token passing; specifications are expressed in indexed temporal logic without
    the next operator; and the underlying network topologies are generated by suitable
    Monadic Second Order Logic formulas and graph operations. First, we settle the
    exact computational complexity of the parameterized model checking problem for
    some of our concurrent systems, and establish new decidability results for others.
    Second, we consider the cases that model checking the parameterized system can
    be reduced to model checking some fixed number of processes, the number is known
    as a cutoff. We provide many cases for when such cutoffs can be computed, establish
    lower bounds on the size of such cutoffs, and identify cases where no cutoff exists.
    Third, we consider cases for which the parameterized system is equivalent to a
    single finite-state system (more precisely a Büchi word automaton), and establish
    tight bounds on the sizes of such automata.
acknowledgement: The second, third, fourth and fifth authors were supported by the
  Austrian National Research Network S11403-N23 (RiSE) of the Austrian Science Fund
  (FWF) and by the Vienna Science and Technology Fund (WWTF) through grants PROSEED,
  ICT12-059, and VRG11-005.
alternative_title:
- LNCS
author:
- first_name: Benjamin
  full_name: Aminof, Benjamin
  id: 4A55BD00-F248-11E8-B48F-1D18A9856A87
  last_name: Aminof
- first_name: Tomer
  full_name: Kotek, Tomer
  last_name: Kotek
- first_name: Sacha
  full_name: Rubin, Sacha
  last_name: Rubin
- first_name: Francesco
  full_name: Spegni, Francesco
  last_name: Spegni
- first_name: Helmut
  full_name: Veith, Helmut
  last_name: Veith
citation:
  ama: 'Aminof B, Kotek T, Rubin S, Spegni F, Veith H. Parameterized model checking
    of rendezvous systems. In: Baldan P, Gorla D, eds. <i>Lecture Notes in Computer
    Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture
    Notes in Bioinformatics)</i>. Vol 8704. Schloss Dagstuhl - Leibniz-Zentrum für
    Informatik; 2014:109-124. doi:<a href="https://doi.org/10.1007/978-3-662-44584-6_9">10.1007/978-3-662-44584-6_9</a>'
  apa: 'Aminof, B., Kotek, T., Rubin, S., Spegni, F., &#38; Veith, H. (2014). Parameterized
    model checking of rendezvous systems. In P. Baldan &#38; D. Gorla (Eds.), <i>Lecture
    Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence
    and Lecture Notes in Bioinformatics)</i> (Vol. 8704, pp. 109–124). Rome, Italy:
    Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.1007/978-3-662-44584-6_9">https://doi.org/10.1007/978-3-662-44584-6_9</a>'
  chicago: Aminof, Benjamin, Tomer Kotek, Sacha Rubin, Francesco Spegni, and Helmut
    Veith. “Parameterized Model Checking of Rendezvous Systems.” In <i>Lecture Notes
    in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence
    and Lecture Notes in Bioinformatics)</i>, edited by Paolo Baldan and Daniele Gorla,
    8704:109–24. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014. <a href="https://doi.org/10.1007/978-3-662-44584-6_9">https://doi.org/10.1007/978-3-662-44584-6_9</a>.
  ieee: B. Aminof, T. Kotek, S. Rubin, F. Spegni, and H. Veith, “Parameterized model
    checking of rendezvous systems,” in <i>Lecture Notes in Computer Science (including
    subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)</i>,
    Rome, Italy, 2014, vol. 8704, pp. 109–124.
  ista: 'Aminof B, Kotek T, Rubin S, Spegni F, Veith H. 2014. Parameterized model
    checking of rendezvous systems. Lecture Notes in Computer Science (including subseries
    Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics).
    CONCUR: Concurrency Theory, LNCS, vol. 8704, 109–124.'
  mla: Aminof, Benjamin, et al. “Parameterized Model Checking of Rendezvous Systems.”
    <i>Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial
    Intelligence and Lecture Notes in Bioinformatics)</i>, edited by Paolo Baldan
    and Daniele Gorla, vol. 8704, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2014, pp. 109–24, doi:<a href="https://doi.org/10.1007/978-3-662-44584-6_9">10.1007/978-3-662-44584-6_9</a>.
  short: B. Aminof, T. Kotek, S. Rubin, F. Spegni, H. Veith, in:, P. Baldan, D. Gorla
    (Eds.), Lecture Notes in Computer Science (Including Subseries Lecture Notes in
    Artificial Intelligence and Lecture Notes in Bioinformatics), Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik, 2014, pp. 109–124.
conference:
  end_date: 2014-09-05
  location: Rome, Italy
  name: 'CONCUR: Concurrency Theory'
  start_date: 2014-09-02
date_created: 2018-12-11T11:55:26Z
date_published: 2014-09-01T00:00:00Z
date_updated: 2021-01-12T06:54:59Z
day: '01'
department:
- _id: KrCh
doi: 10.1007/978-3-662-44584-6_9
editor:
- first_name: Paolo
  full_name: Baldan, Paolo
  last_name: Baldan
- first_name: Daniele
  full_name: Gorla, Daniele
  last_name: Gorla
intvolume: '      8704'
language:
- iso: eng
month: '09'
oa_version: None
page: 109 - 124
publication: Lecture Notes in Computer Science (including subseries Lecture Notes
  in Artificial Intelligence and Lecture Notes in Bioinformatics)
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '4994'
quality_controlled: '1'
status: public
title: Parameterized model checking of rendezvous systems
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 8704
year: '2014'
...
---
_id: '2053'
abstract:
- lang: eng
  text: In contrast to the usual understanding of probabilistic systems as stochastic
    processes, recently these systems have also been regarded as transformers of probabilities.
    In this paper, we give a natural definition of strong bisimulation for probabilistic
    systems corresponding to this view that treats probability distributions as first-class
    citizens. Our definition applies in the same way to discrete systems as well as
    to systems with uncountable state and action spaces. Several examples demonstrate
    that our definition refines the understanding of behavioural equivalences of probabilistic
    systems. In particular, it solves a longstanding open problem concerning the representation
    of memoryless continuous time by memoryfull continuous time. Finally, we give
    algorithms for computing this bisimulation not only for finite but also for classes
    of uncountably infinite systems.
acknowledgement: This work is supported by the EU 7th Framework Programme under grant
  agreements 295261 (MEALS) and 318490 (SENSATION), Czech Science Foundation under
  grant agreement P202/12/G061, the DFG Transregional Collaborative Research Centre
  SFB/TR 14 AVACS, and by the CAS/SAFEA International Partnership Program for Creative
  Research Teams.
alternative_title:
- LNCS
author:
- first_name: Holger
  full_name: Hermanns, Holger
  last_name: Hermanns
- first_name: Jan
  full_name: Krčál, Jan
  last_name: Krčál
- first_name: Jan
  full_name: Kretinsky, Jan
  id: 44CEF464-F248-11E8-B48F-1D18A9856A87
  last_name: Kretinsky
  orcid: 0000-0002-8122-2881
citation:
  ama: 'Hermanns H, Krčál J, Kretinsky J. Probabilistic bisimulation: Naturally on
    distributions. In: Baldan P, Gorla D, eds. <i>Lecture Notes in Computer Science
    (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes
    in Bioinformatics)</i>. Vol 8704. Schloss Dagstuhl - Leibniz-Zentrum für Informatik;
    2014:249-265. doi:<a href="https://doi.org/10.1007/978-3-662-44584-6_18">10.1007/978-3-662-44584-6_18</a>'
  apa: 'Hermanns, H., Krčál, J., &#38; Kretinsky, J. (2014). Probabilistic bisimulation:
    Naturally on distributions. In P. Baldan &#38; D. Gorla (Eds.), <i>Lecture Notes
    in Computer Science (including subseries Lecture Notes in Artificial Intelligence
    and Lecture Notes in Bioinformatics)</i> (Vol. 8704, pp. 249–265). Rome, Italy:
    Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.1007/978-3-662-44584-6_18">https://doi.org/10.1007/978-3-662-44584-6_18</a>'
  chicago: 'Hermanns, Holger, Jan Krčál, and Jan Kretinsky. “Probabilistic Bisimulation:
    Naturally on Distributions.” In <i>Lecture Notes in Computer Science (Including
    Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)</i>,
    edited by Paolo Baldan and Daniele Gorla, 8704:249–65. Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, 2014. <a href="https://doi.org/10.1007/978-3-662-44584-6_18">https://doi.org/10.1007/978-3-662-44584-6_18</a>.'
  ieee: 'H. Hermanns, J. Krčál, and J. Kretinsky, “Probabilistic bisimulation: Naturally
    on distributions,” in <i>Lecture Notes in Computer Science (including subseries
    Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)</i>,
    Rome, Italy, 2014, vol. 8704, pp. 249–265.'
  ista: 'Hermanns H, Krčál J, Kretinsky J. 2014. Probabilistic bisimulation: Naturally
    on distributions. Lecture Notes in Computer Science (including subseries Lecture
    Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). CONCUR:
    Concurrency Theory, LNCS, vol. 8704, 249–265.'
  mla: 'Hermanns, Holger, et al. “Probabilistic Bisimulation: Naturally on Distributions.”
    <i>Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial
    Intelligence and Lecture Notes in Bioinformatics)</i>, edited by Paolo Baldan
    and Daniele Gorla, vol. 8704, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2014, pp. 249–65, doi:<a href="https://doi.org/10.1007/978-3-662-44584-6_18">10.1007/978-3-662-44584-6_18</a>.'
  short: H. Hermanns, J. Krčál, J. Kretinsky, in:, P. Baldan, D. Gorla (Eds.), Lecture
    Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence
    and Lecture Notes in Bioinformatics), Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2014, pp. 249–265.
conference:
  end_date: 2014-09-05
  location: Rome, Italy
  name: 'CONCUR: Concurrency Theory'
  start_date: 2014-09-02
date_created: 2018-12-11T11:55:27Z
date_published: 2014-09-01T00:00:00Z
date_updated: 2021-01-12T06:55:00Z
day: '01'
department:
- _id: ToHe
- _id: KrCh
doi: 10.1007/978-3-662-44584-6_18
ec_funded: 1
editor:
- first_name: Paolo
  full_name: Baldan, Paolo
  last_name: Baldan
- first_name: Daniele
  full_name: Gorla, Daniele
  last_name: Gorla
intvolume: '      8704'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1404.5084
month: '09'
oa: 1
oa_version: Submitted Version
page: 249 - 265
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11402-N23
  name: Moderne Concurrency Paradigms
publication: Lecture Notes in Computer Science (including subseries Lecture Notes
  in Artificial Intelligence and Lecture Notes in Bioinformatics)
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '4993'
status: public
title: 'Probabilistic bisimulation: Naturally on distributions'
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 8704
year: '2014'
...
---
_id: '2054'
abstract:
- lang: eng
  text: 'We study two-player concurrent games on finite-state graphs played for an
    infinite number of rounds, where 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. The objectives are 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). While the qualitative analysis problem for concurrent
    parity games with infinite-memory, infinite-precision randomized strategies was
    studied before, 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 (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. Our symbolic algorithms are based
    on a characterization of the winning sets as μ-calculus formulas, however, our
    μ-calculus formulas are crucially different from the ones for concurrent parity
    games (without bounded rationality); and our memoryless witness strategy constructions
    are significantly different from the infinite-memory witness strategy constructions
    for concurrent parity games.'
alternative_title:
- LNCS
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
citation:
  ama: 'Chatterjee K. Qualitative concurrent parity games: Bounded rationality. In:
    Baldan P, Gorla D, eds. <i>Lecture Notes in Computer Science (Including Subseries
    Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)</i>.
    Vol 8704. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2014:544-559. doi:<a
    href="https://doi.org/10.1007/978-3-662-44584-6_37">10.1007/978-3-662-44584-6_37</a>'
  apa: 'Chatterjee, K. (2014). Qualitative concurrent parity games: Bounded rationality.
    In P. Baldan &#38; D. Gorla (Eds.), <i>Lecture Notes in Computer Science (including
    subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)</i>
    (Vol. 8704, pp. 544–559). Rome, Italy: Schloss Dagstuhl - Leibniz-Zentrum für
    Informatik. <a href="https://doi.org/10.1007/978-3-662-44584-6_37">https://doi.org/10.1007/978-3-662-44584-6_37</a>'
  chicago: 'Chatterjee, Krishnendu. “Qualitative Concurrent Parity Games: Bounded
    Rationality.” In <i>Lecture Notes in Computer Science (Including Subseries Lecture
    Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)</i>, edited
    by Paolo Baldan and Daniele Gorla, 8704:544–59. Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, 2014. <a href="https://doi.org/10.1007/978-3-662-44584-6_37">https://doi.org/10.1007/978-3-662-44584-6_37</a>.'
  ieee: 'K. Chatterjee, “Qualitative concurrent parity games: Bounded rationality,”
    in <i>Lecture Notes in Computer Science (including subseries Lecture Notes in
    Artificial Intelligence and Lecture Notes in Bioinformatics)</i>, Rome, Italy,
    2014, vol. 8704, pp. 544–559.'
  ista: 'Chatterjee K. 2014. Qualitative concurrent parity games: Bounded rationality.
    Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial
    Intelligence and Lecture Notes in Bioinformatics). CONCUR: Concurrency Theory,
    LNCS, vol. 8704, 544–559.'
  mla: 'Chatterjee, Krishnendu. “Qualitative Concurrent Parity Games: Bounded Rationality.”
    <i>Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial
    Intelligence and Lecture Notes in Bioinformatics)</i>, edited by Paolo Baldan
    and Daniele Gorla, vol. 8704, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2014, pp. 544–59, doi:<a href="https://doi.org/10.1007/978-3-662-44584-6_37">10.1007/978-3-662-44584-6_37</a>.'
  short: K. Chatterjee, in:, P. Baldan, D. Gorla (Eds.), Lecture Notes in Computer
    Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture
    Notes in Bioinformatics), Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014,
    pp. 544–559.
conference:
  end_date: 2014-09-05
  location: Rome, Italy
  name: 'CONCUR: Concurrency Theory'
  start_date: 2014-09-02
date_created: 2018-12-11T11:55:27Z
date_published: 2014-09-01T00:00:00Z
date_updated: 2023-02-23T11:23:36Z
day: '01'
department:
- _id: KrCh
doi: 10.1007/978-3-662-44584-6_37
ec_funded: 1
editor:
- first_name: Paolo
  full_name: Baldan, Paolo
  last_name: Baldan
- first_name: Daniele
  full_name: Gorla, Daniele
  last_name: Gorla
intvolume: '      8704'
language:
- iso: eng
month: '09'
oa_version: None
page: 544 - 559
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: Lecture Notes in Computer Science (including subseries Lecture Notes
  in Artificial Intelligence and Lecture Notes in Bioinformatics)
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '4992'
quality_controlled: '1'
related_material:
  record:
  - id: '3354'
    relation: earlier_version
    status: public
status: public
title: 'Qualitative concurrent parity games: Bounded rationality'
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 8704
year: '2014'
...
