---
_id: '5423'
abstract:
- lang: eng
text: 'We present a flexible framework for the automated competitive analysis of
on-line scheduling algorithms for firm- deadline real-time tasks based on multi-objective
graphs: Given a taskset and an on-line scheduling algorithm specified as a labeled
transition system, along with some optional safety, liveness, and/or limit-average
constraints for the adversary, we automatically compute the competitive ratio
of the algorithm w.r.t. a clairvoyant scheduler. We demonstrate the flexibility
and power of our approach by comparing the competitive ratio of several on-line
algorithms, including D(over), that have been proposed in the past, for various
tasksets. Our experimental results reveal that none of these algorithms is universally
optimal, in the sense that there are tasksets where other schedulers provide better
performance. Our framework is hence a very useful design tool for selecting optimal
algorithms for a given application. '
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Alexander
full_name: Kössler, Alexander
last_name: Kössler
- first_name: Andreas
full_name: Pavlogiannis, Andreas
id: 49704004-F248-11E8-B48F-1D18A9856A87
last_name: Pavlogiannis
orcid: 0000-0002-8943-0722
- first_name: Ulrich
full_name: Schmid, Ulrich
last_name: Schmid
citation:
ama: Chatterjee K, Kössler A, Pavlogiannis A, Schmid U. A Framework for Automated
Competitive Analysis of On-Line Scheduling of Firm-Deadline Tasks. IST Austria;
2014. doi:10.15479/AT:IST-2014-300-v1-1
apa: Chatterjee, K., Kössler, A., Pavlogiannis, A., & Schmid, U. (2014). A
framework for automated competitive analysis of on-line scheduling of firm-deadline
tasks. IST Austria. https://doi.org/10.15479/AT:IST-2014-300-v1-1
chicago: Chatterjee, Krishnendu, Alexander Kössler, Andreas Pavlogiannis, and Ulrich
Schmid. A Framework for Automated Competitive Analysis of On-Line Scheduling
of Firm-Deadline Tasks. IST Austria, 2014. https://doi.org/10.15479/AT:IST-2014-300-v1-1.
ieee: K. Chatterjee, A. Kössler, A. Pavlogiannis, and U. Schmid, A framework
for automated competitive analysis of on-line scheduling of firm-deadline tasks.
IST Austria, 2014.
ista: Chatterjee K, Kössler A, Pavlogiannis A, Schmid U. 2014. A framework for automated
competitive analysis of on-line scheduling of firm-deadline tasks, IST Austria,
14p.
mla: Chatterjee, Krishnendu, et al. A Framework for Automated Competitive Analysis
of On-Line Scheduling of Firm-Deadline Tasks. IST Austria, 2014, doi:10.15479/AT:IST-2014-300-v1-1.
short: K. Chatterjee, A. Kössler, A. Pavlogiannis, U. Schmid, A Framework for Automated
Competitive Analysis of On-Line Scheduling of Firm-Deadline Tasks, IST Austria,
2014.
date_created: 2018-12-12T11:39:15Z
date_published: 2014-07-29T00:00:00Z
date_updated: 2023-02-23T10:11:15Z
day: '29'
ddc:
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-300-v1-1
file:
- access_level: open_access
checksum: 4b8fde4d9ef6653837f6803921d83032
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:53Z
date_updated: 2020-07-14T12:46:50Z
file_id: '5514'
file_name: IST-2014-300-v1+1_main.pdf
file_size: 1270021
relation: main_file
file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '14'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '300'
related_material:
record:
- id: '1714'
relation: later_version
status: public
status: public
title: A framework for automated competitive analysis of on-line scheduling of firm-deadline
tasks
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5427'
abstract:
- lang: eng
text: 'We consider graphs with n nodes together with their tree-decomposition that
has b = O ( n ) bags and width t , on the standard RAM computational model with
wordsize W = Θ (log n ) . Our contributions are two-fold: Our first contribution
is an algorithm that given a graph and its tree-decomposition as input, computes
a binary and balanced tree-decomposition of width at most 4 · t + 3 of the graph
in O ( b ) time and space, improving a long-standing (from 1992) bound of O (
n · log n ) time for constant treewidth graphs. Our second contribution is on
reachability queries for low treewidth graphs. We build on our tree-balancing
algorithm and present a data-structure for graph reachability that requires O
( n · t 2 ) preprocessing time, O ( n · t ) space, and O ( d t/ log n e ) time
for pair queries, and O ( n · t · log t/ log n ) time for single-source queries.
For constant t our data-structure uses O ( n ) time for preprocessing, O (1) time
for pair queries, and O ( n/ log n ) time for single-source queries. This is (asymptotically)
optimal and is faster than DFS/BFS when answering more than a constant number
of single-source queries.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Rasmus
full_name: Ibsen-Jensen, Rasmus
id: 3B699956-F248-11E8-B48F-1D18A9856A87
last_name: Ibsen-Jensen
orcid: 0000-0003-4783-0389
- first_name: Andreas
full_name: Pavlogiannis, Andreas
id: 49704004-F248-11E8-B48F-1D18A9856A87
last_name: Pavlogiannis
orcid: 0000-0002-8943-0722
citation:
ama: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. Optimal Tree-Decomposition
Balancing and Reachability on Low Treewidth Graphs. IST Austria; 2014. doi:10.15479/AT:IST-2014-314-v1-1
apa: Chatterjee, K., Ibsen-Jensen, R., & Pavlogiannis, A. (2014). Optimal
tree-decomposition balancing and reachability on low treewidth graphs. IST
Austria. https://doi.org/10.15479/AT:IST-2014-314-v1-1
chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis.
Optimal Tree-Decomposition Balancing and Reachability on Low Treewidth Graphs.
IST Austria, 2014. https://doi.org/10.15479/AT:IST-2014-314-v1-1.
ieee: K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, Optimal tree-decomposition
balancing and reachability on low treewidth graphs. IST Austria, 2014.
ista: Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2014. Optimal tree-decomposition
balancing and reachability on low treewidth graphs, IST Austria, 24p.
mla: Chatterjee, Krishnendu, et al. Optimal Tree-Decomposition Balancing and
Reachability on Low Treewidth Graphs. IST Austria, 2014, doi:10.15479/AT:IST-2014-314-v1-1.
short: K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, Optimal Tree-Decomposition
Balancing and Reachability on Low Treewidth Graphs, IST Austria, 2014.
date_created: 2018-12-12T11:39:16Z
date_published: 2014-11-05T00:00:00Z
date_updated: 2021-01-12T08:02:09Z
day: '05'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-314-v1-1
file:
- access_level: open_access
checksum: 9d3b90bf4fff74664f182f2d95ef727a
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:10Z
date_updated: 2020-07-14T12:46:52Z
file_id: '5471'
file_name: IST-2014-314-v1+1_long.pdf
file_size: 405561
relation: main_file
file_date_updated: 2020-07-14T12:46:52Z
has_accepted_license: '1'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: '24'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '314'
status: public
title: Optimal tree-decomposition balancing and reachability on low treewidth graphs
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5425'
abstract:
- lang: eng
text: ' We consider partially observable Markov decision processes (POMDPs) with
a set of target states and every transition is associated with an integer cost.
The optimization objective we study asks to minimize the expected total cost till
the target set is reached, while ensuring that the target set is reached almost-surely
(with probability 1). We show that for integer costs approximating the optimal
cost is undecidable. For positive costs, our results are as follows: (i) we establish
matching lower and upper bounds for the optimal cost and the bound is double exponential;
(ii) we show that the problem of approximating the optimal cost is decidable and
present approximation algorithms developing on the existing algorithms for POMDPs
with finite-horizon objectives. While the worst-case running time of our algorithm
is double exponential, we also present efficient stopping criteria for the algorithm
and show experimentally that it performs well in many examples of interest.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: '1'
full_name: Anonymous, 1
last_name: Anonymous
- first_name: '2'
full_name: Anonymous, 2
last_name: Anonymous
- first_name: '3'
full_name: Anonymous, 3
last_name: Anonymous
- first_name: '4'
full_name: Anonymous, 4
last_name: Anonymous
citation:
ama: Anonymous 1, Anonymous 2, Anonymous 3, Anonymous 4. Optimal Cost Almost-Sure
Reachability in POMDPs. IST Austria; 2014.
apa: Anonymous, 1, Anonymous, 2, Anonymous, 3, & Anonymous, 4. (2014). Optimal
cost almost-sure reachability in POMDPs. IST Austria.
chicago: Anonymous, 1, 2 Anonymous, 3 Anonymous, and 4 Anonymous. Optimal Cost
Almost-Sure Reachability in POMDPs. IST Austria, 2014.
ieee: 1 Anonymous, 2 Anonymous, 3 Anonymous, and 4 Anonymous, Optimal cost almost-sure
reachability in POMDPs. IST Austria, 2014.
ista: Anonymous 1, Anonymous 2, Anonymous 3, Anonymous 4. 2014. Optimal cost almost-sure
reachability in POMDPs, IST Austria, 22p.
mla: Anonymous, 1, et al. Optimal Cost Almost-Sure Reachability in POMDPs.
IST Austria, 2014.
short: 1 Anonymous, 2 Anonymous, 3 Anonymous, 4 Anonymous, Optimal Cost Almost-Sure
Reachability in POMDPs, IST Austria, 2014.
date_created: 2018-12-12T11:39:15Z
date_published: 2014-09-09T00:00:00Z
date_updated: 2023-02-23T10:02:57Z
day: '09'
ddc:
- '000'
file:
- access_level: open_access
checksum: b9668a70d53c550b3cd64f0c77451c3d
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:17Z
date_updated: 2020-07-14T12:46:51Z
file_id: '5478'
file_name: IST-2014-307-v1+1_main.pdf
file_size: 2725429
relation: main_file
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checksum: 808ada1dddecc48ca041526fcc6a9efd
content_type: text/plain
creator: dernst
date_created: 2019-04-16T14:16:12Z
date_updated: 2020-07-14T12:46:51Z
file_id: '6322'
file_name: IST-2014-307-v1+2_authors.txt
file_size: 117
relation: main_file
file_date_updated: 2020-07-14T12:46:51Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '22'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '307'
related_material:
record:
- id: '1529'
relation: later_version
status: public
scopus_import: 1
status: public
title: Optimal cost almost-sure reachability in POMDPs
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5415'
abstract:
- lang: eng
text: 'Recently there has been a significant effort to add quantitative properties
in formal verification and synthesis. While weighted automata over finite and
infinite words provide a natural and flexible framework to express quantitative
properties, perhaps surprisingly, several basic system properties such as average
response time cannot be expressed with weighted automata. In this work, we introduce
nested weighted automata as a new formalism for expressing important quantitative
properties such as average response time. We establish an almost complete decidability
picture for the basic decision problems for nested weighted automata, and illustrate
its applicability in several domains. '
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Jan
full_name: Otop, Jan
id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
last_name: Otop
citation:
ama: Chatterjee K, Henzinger TA, Otop J. Nested Weighted Automata. IST Austria;
2014. doi:10.15479/AT:IST-2014-170-v1-1
apa: Chatterjee, K., Henzinger, T. A., & Otop, J. (2014). Nested weighted
automata. IST Austria. https://doi.org/10.15479/AT:IST-2014-170-v1-1
chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. Nested Weighted
Automata. IST Austria, 2014. https://doi.org/10.15479/AT:IST-2014-170-v1-1.
ieee: K. Chatterjee, T. A. Henzinger, and J. Otop, Nested weighted automata.
IST Austria, 2014.
ista: Chatterjee K, Henzinger TA, Otop J. 2014. Nested weighted automata, IST Austria,
27p.
mla: Chatterjee, Krishnendu, et al. Nested Weighted Automata. IST Austria,
2014, doi:10.15479/AT:IST-2014-170-v1-1.
short: K. Chatterjee, T.A. Henzinger, J. Otop, Nested Weighted Automata, IST Austria,
2014.
date_created: 2018-12-12T11:39:12Z
date_published: 2014-02-19T00:00:00Z
date_updated: 2023-02-23T12:26:19Z
day: '19'
ddc:
- '004'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2014-170-v1-1
file:
- access_level: open_access
checksum: 31f90dcf2cf899c3f8c6427cfcc2b3c7
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:36Z
date_updated: 2020-07-14T12:46:48Z
file_id: '5497'
file_name: IST-2014-170-v1+1_main.pdf
file_size: 573457
relation: main_file
file_date_updated: 2020-07-14T12:46:48Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '27'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '170'
related_material:
record:
- id: '1656'
relation: later_version
status: public
- id: '467'
relation: later_version
status: public
- id: '5436'
relation: later_version
status: public
status: public
title: Nested weighted automata
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5421'
abstract:
- lang: eng
text: 'Evolution occurs in populations of reproducing individuals. The structure
of the population affects the outcome of the evolutionary process. Evolutionary
graph theory is a powerful approach to study this phenomenon. There are two graphs.
The interaction graph specifies who interacts with whom in the context of evolution.
The replacement graph specifies who competes with whom for reproduction. The vertices
of the two graphs are the same, and each vertex corresponds to an individual.
A key quantity is the fixation probability of a new mutant. It is defined as the
probability that a newly introduced mutant (on a single vertex) generates a lineage
of offspring which eventually takes over the entire population of resident individuals.
The basic computational questions are as follows: (i) the qualitative question
asks whether the fixation probability is positive; and (ii) the quantitative approximation
question asks for an approximation of the fixation probability. Our main results
are: (1) We show that the qualitative question is NP-complete and the quantitative
approximation question is #P-hard in the special case when the interaction and
the replacement graphs coincide and even with the restriction that the resident
individuals do not reproduce (which corresponds to an invading population taking
over an empty structure). (2) We show that in general the qualitative question
is PSPACE-complete and the quantitative approximation question is PSPACE-hard
and can be solved in exponential time.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Rasmus
full_name: Ibsen-Jensen, Rasmus
id: 3B699956-F248-11E8-B48F-1D18A9856A87
last_name: Ibsen-Jensen
orcid: 0000-0003-4783-0389
- first_name: Martin
full_name: Nowak, Martin
last_name: Nowak
citation:
ama: Chatterjee K, Ibsen-Jensen R, Nowak M. The Complexity of Evolution on Graphs.
IST Austria; 2014. doi:10.15479/AT:IST-2014-190-v2-2
apa: Chatterjee, K., Ibsen-Jensen, R., & Nowak, M. (2014). The complexity
of evolution on graphs. IST Austria. https://doi.org/10.15479/AT:IST-2014-190-v2-2
chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Martin Nowak. The Complexity
of Evolution on Graphs. IST Austria, 2014. https://doi.org/10.15479/AT:IST-2014-190-v2-2.
ieee: K. Chatterjee, R. Ibsen-Jensen, and M. Nowak, The complexity of evolution
on graphs. IST Austria, 2014.
ista: Chatterjee K, Ibsen-Jensen R, Nowak M. 2014. The complexity of evolution on
graphs, IST Austria, 27p.
mla: Chatterjee, Krishnendu, et al. The Complexity of Evolution on Graphs.
IST Austria, 2014, doi:10.15479/AT:IST-2014-190-v2-2.
short: K. Chatterjee, R. Ibsen-Jensen, M. Nowak, The Complexity of Evolution on
Graphs, IST Austria, 2014.
date_created: 2018-12-12T11:39:14Z
date_published: 2014-04-18T00:00:00Z
date_updated: 2023-02-23T12:26:33Z
day: '18'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2014-190-v2-2
file:
- access_level: open_access
checksum: 42f3d8b563286eb0d903832bd9a848d3
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:16Z
date_updated: 2020-07-14T12:46:50Z
file_id: '5538'
file_name: IST-2014-190-v2+2_main_full.pdf
file_size: 443529
relation: main_file
- access_level: open_access
checksum: 0c9a2fd822309719634495a35957e34d
content_type: application/pdf
creator: kschuh
date_created: 2019-09-06T07:30:20Z
date_updated: 2020-07-14T12:46:50Z
file_id: '6852'
file_name: IST-2014-190-v1+1_main_full.pdf
file_size: 440911
relation: main_file
file_date_updated: 2020-07-14T12:46:50Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '27'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '190'
related_material:
record:
- id: '5432'
relation: later_version
status: public
- id: '5440'
relation: later_version
status: public
status: public
title: The complexity of evolution on graphs
type: technical_report
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5428'
abstract:
- lang: eng
text: "Simulation is an attractive alternative for language inclusion for automata
as it is an under-approximation of language inclusion, but usually has much lower
complexity. For non-deterministic automata, while language inclusion is PSPACE-complete,
simulation can be computed in polynomial time. Simulation has also been extended
in two orthogonal directions, namely, (1) fair simulation, for simulation over
specified set of infinite runs; and (2) quantitative simulation, for simulation
between weighted automata. Again, while fair trace inclusion is PSPACE-complete,
fair simulation can be computed in polynomial time. For weighted automata, the
(quantitative) language inclusion problem is undecidable for mean-payoff automata
and the decidability is open for discounted-sum automata, whereas the (quantitative)
simulation reduce to mean-payoff games and discounted-sum games, which admit pseudo-polynomial
time algorithms.\r\n\r\nIn this work, we study (quantitative) simulation for weighted
automata with Büchi acceptance conditions, i.e., we generalize fair simulation
from non-weighted automata to weighted automata. We show that imposing Büchi acceptance
conditions on weighted automata changes many fundamental properties of the simulation
games. For example, whereas for mean-payoff and discounted-sum games, the players
do not need memory to play optimally; we show in contrast that for simulation
games with Büchi acceptance conditions, (i) for mean-payoff objectives, optimal
strategies for both players require infinite memory in general, and (ii) for discounted-sum
objectives, optimal strategies need not exist for both players. While the simulation
games with Büchi acceptance conditions are more complicated (e.g., due to infinite-memory
requirements for mean-payoff objectives) as compared to their counterpart without
Büchi acceptance conditions, we still present pseudo-polynomial time algorithms
to solve simulation games with Büchi acceptance conditions for both weighted mean-payoff
and weighted discounted-sum automata."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Jan
full_name: Otop, Jan
id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
last_name: Otop
- first_name: Yaron
full_name: Velner, Yaron
last_name: Velner
citation:
ama: Chatterjee K, Henzinger TA, Otop J, Velner Y. Quantitative Fair Simulation
Games. IST Austria; 2014. doi:10.15479/AT:IST-2014-315-v1-1
apa: Chatterjee, K., Henzinger, T. A., Otop, J., & Velner, Y. (2014). Quantitative
fair simulation games. IST Austria. https://doi.org/10.15479/AT:IST-2014-315-v1-1
chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Jan Otop, and Yaron Velner.
Quantitative Fair Simulation Games. IST Austria, 2014. https://doi.org/10.15479/AT:IST-2014-315-v1-1.
ieee: K. Chatterjee, T. A. Henzinger, J. Otop, and Y. Velner, Quantitative fair
simulation games. IST Austria, 2014.
ista: Chatterjee K, Henzinger TA, Otop J, Velner Y. 2014. Quantitative fair simulation
games, IST Austria, 26p.
mla: Chatterjee, Krishnendu, et al. Quantitative Fair Simulation Games. IST
Austria, 2014, doi:10.15479/AT:IST-2014-315-v1-1.
short: K. Chatterjee, T.A. Henzinger, J. Otop, Y. Velner, Quantitative Fair Simulation
Games, IST Austria, 2014.
date_created: 2018-12-12T11:39:16Z
date_published: 2014-12-05T00:00:00Z
date_updated: 2023-09-20T12:07:48Z
day: '05'
ddc:
- '004'
department:
- _id: ToHe
- _id: KrCh
doi: 10.15479/AT:IST-2014-315-v1-1
file:
- access_level: open_access
checksum: b1d573bc04365625ff9974880c0aa807
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:59Z
date_updated: 2020-07-14T12:46:52Z
file_id: '5521'
file_name: IST-2014-315-v1+1_report.pdf
file_size: 531046
relation: main_file
file_date_updated: 2020-07-14T12:46:52Z
has_accepted_license: '1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: '26'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '315'
related_material:
record:
- id: '1066'
relation: later_version
status: public
status: public
title: Quantitative fair simulation games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '5399'
abstract:
- lang: eng
text: In this work we present a flexible tool for tumor progression, which simulates
the evolutionary dynamics of cancer. Tumor progression implements a multi-type
branching process where the key parameters are the fitness landscape, the mutation
rate, and the average time of cell division. The fitness of a cancer cell depends
on the mutations it has accumulated. The input to our tool could be any fitness
landscape, mutation rate, and cell division time, and the tool produces the growth
dynamics and all relevant statistics.
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: 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: Martin
full_name: Nowak, Martin
last_name: Nowak
citation:
ama: 'Reiter J, Bozic I, Chatterjee K, Nowak M. TTP: Tool for Tumor Progression.
IST Austria; 2013. doi:10.15479/AT:IST-2013-104-v1-1'
apa: 'Reiter, J., Bozic, I., Chatterjee, K., & Nowak, M. (2013). TTP: Tool
for Tumor Progression. IST Austria. https://doi.org/10.15479/AT:IST-2013-104-v1-1'
chicago: 'Reiter, Johannes, Ivana Bozic, Krishnendu Chatterjee, and Martin Nowak.
TTP: Tool for Tumor Progression. IST Austria, 2013. https://doi.org/10.15479/AT:IST-2013-104-v1-1.'
ieee: 'J. Reiter, I. Bozic, K. Chatterjee, and M. Nowak, TTP: Tool for Tumor
Progression. IST Austria, 2013.'
ista: 'Reiter J, Bozic I, Chatterjee K, Nowak M. 2013. TTP: Tool for Tumor Progression,
IST Austria, 17p.'
mla: 'Reiter, Johannes, et al. TTP: Tool for Tumor Progression. IST Austria,
2013, doi:10.15479/AT:IST-2013-104-v1-1.'
short: 'J. Reiter, I. Bozic, K. Chatterjee, M. Nowak, TTP: Tool for Tumor Progression,
IST Austria, 2013.'
date_created: 2018-12-12T11:39:07Z
date_published: 2013-01-11T00:00:00Z
date_updated: 2023-02-23T10:23:57Z
day: '11'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-104-v1-1
file:
- access_level: open_access
checksum: 2cc8c6e157eca1271128db80bb3dec80
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:20Z
date_updated: 2020-07-14T12:46:44Z
file_id: '5542'
file_name: IST-2013-104-v1+1_tumortool.pdf
file_size: 1471954
relation: main_file
file_date_updated: 2020-07-14T12:46:44Z
has_accepted_license: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: '17'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '104'
related_material:
record:
- id: '2000'
relation: later_version
status: public
status: public
title: 'TTP: Tool for Tumor Progression'
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5403'
abstract:
- lang: eng
text: 'We consider concurrent games played by two-players on a finite state graph,
where in every round the players simultaneously choose a move, and the current
state along with the joint moves determine the successor state. We study the most
fundamental objective for concurrent games, namely, mean-payoff or limit-average
objective, where a reward is associated to every transition, and the goal of player
1 is to maximize the long-run average of the rewards, and the objective of player
2 is strictly the opposite (i.e., the games are zero-sum). The path constraint
for player 1 could be qualitative, i.e., the mean-payoff is the maximal reward,
or arbitrarily close to it; or quantitative, i.e., a given threshold between the
minimal and maximal reward. We consider the computation of the almost-sure (resp.
positive) winning sets, where player 1 can ensure that the path constraint is
satisfied with probability 1 (resp. positive probability). Almost-sure winning
with qualitative constraint exactly corresponds to the question whether there
exists a strategy to ensure that the payoff is the maximal reward of the game.
Our main results for qualitative path constraints are as follows: (1) we establish
qualitative determinacy results that show for every state either player 1 has
a strategy to ensure almost-sure (resp. positive) winning against all player-2
strategies or player 2 has a spoiling strategy to falsify almost-sure (resp. positive)
winning against all player-1 strategies; (2) we present optimal strategy complexity
results that precisely characterize the classes of strategies required for almost-sure
and positive winning for both players; and (3) we present quadratic time algorithms
to compute the almost-sure and the positive winning sets, matching the best known
bound of the algorithms for much simpler problems (such as reachability objectives).
For quantitative constraints we show that a polynomial time solution for the almost-sure
or the positive winning set would imply a solution to a long-standing open problem
(of solving the value problem of mean-payoff games) that is not known to be in
polynomial time.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Rasmus
full_name: Ibsen-Jensen, Rasmus
id: 3B699956-F248-11E8-B48F-1D18A9856A87
last_name: Ibsen-Jensen
orcid: 0000-0003-4783-0389
citation:
ama: Chatterjee K, Ibsen-Jensen R. Qualitative Analysis of Concurrent Mean-Payoff
Games. IST Austria; 2013. doi:10.15479/AT:IST-2013-126-v1-1
apa: Chatterjee, K., & Ibsen-Jensen, R. (2013). Qualitative analysis of concurrent
mean-payoff games. IST Austria. https://doi.org/10.15479/AT:IST-2013-126-v1-1
chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. Qualitative Analysis
of Concurrent Mean-Payoff Games. IST Austria, 2013. https://doi.org/10.15479/AT:IST-2013-126-v1-1.
ieee: K. Chatterjee and R. Ibsen-Jensen, Qualitative analysis of concurrent mean-payoff
games. IST Austria, 2013.
ista: Chatterjee K, Ibsen-Jensen R. 2013. Qualitative analysis of concurrent mean-payoff
games, IST Austria, 33p.
mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. Qualitative Analysis of
Concurrent Mean-Payoff Games. IST Austria, 2013, doi:10.15479/AT:IST-2013-126-v1-1.
short: K. Chatterjee, R. Ibsen-Jensen, Qualitative Analysis of Concurrent Mean-Payoff
Games, IST Austria, 2013.
date_created: 2018-12-12T11:39:08Z
date_published: 2013-07-03T00:00:00Z
date_updated: 2023-02-23T12:22:53Z
day: '03'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-126-v1-1
file:
- access_level: open_access
checksum: 063868c665beec37bf28160e2a695746
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:49Z
date_updated: 2020-07-14T12:46:45Z
file_id: '5510'
file_name: IST-2013-126-v1+1_soda_full.pdf
file_size: 434523
relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '33'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '126'
related_material:
record:
- id: '524'
relation: later_version
status: public
status: public
title: Qualitative analysis of concurrent mean-payoff games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5402'
abstract:
- lang: eng
text: "Linearizability requires that the outcome of calls by competing threads to
a concurrent data structure is the same as some sequential execution where each
thread has exclusive access to the data structure. In an ordered data structure,
such as a queue or a stack, linearizability is ensured by requiring threads commit
in the order dictated by the sequential semantics of the data structure; e.g.,
in a concurrent queue implementation a dequeue can only remove the oldest element.
\r\nIn this paper, we investigate the impact of this strict ordering, by comparing
what linearizability allows to what existing implementations do. We first give
an operational definition for linearizability which allows us to build the most
general linearizable implementation as a transition system for any given sequential
specification. We then use this operational definition to categorize linearizable
implementations based on whether they are bound or free. In a bound implementation,
whenever all threads observe the same logical state, the updates to the logical
state and the temporal order of commits coincide. All existing queue implementations
we know of are bound. We then proceed to present, to the best of our knowledge,
the first ever free queue implementation. Our experiments show that free implementations
have the potential for better performance by suffering less from contention."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Ali
full_name: Sezgin, Ali
id: 4C7638DA-F248-11E8-B48F-1D18A9856A87
last_name: Sezgin
citation:
ama: Henzinger TA, Sezgin A. How Free Is Your Linearizable Concurrent Data Structure?
IST Austria; 2013. doi:10.15479/AT:IST-2013-123-v1-1
apa: Henzinger, T. A., & Sezgin, A. (2013). How free is your linearizable
concurrent data structure? IST Austria. https://doi.org/10.15479/AT:IST-2013-123-v1-1
chicago: Henzinger, Thomas A, and Ali Sezgin. How Free Is Your Linearizable Concurrent
Data Structure? IST Austria, 2013. https://doi.org/10.15479/AT:IST-2013-123-v1-1.
ieee: T. A. Henzinger and A. Sezgin, How free is your linearizable concurrent
data structure? IST Austria, 2013.
ista: Henzinger TA, Sezgin A. 2013. How free is your linearizable concurrent data
structure?, IST Austria, 16p.
mla: Henzinger, Thomas A., and Ali Sezgin. How Free Is Your Linearizable Concurrent
Data Structure? IST Austria, 2013, doi:10.15479/AT:IST-2013-123-v1-1.
short: T.A. Henzinger, A. Sezgin, How Free Is Your Linearizable Concurrent Data
Structure?, IST Austria, 2013.
date_created: 2018-12-12T11:39:07Z
date_published: 2013-06-12T00:00:00Z
date_updated: 2020-07-14T23:04:47Z
day: '12'
ddc:
- '000'
- '004'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2013-123-v1-1
file:
- access_level: open_access
checksum: ce580605ae9756a8c99d7b403ebb8eed
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:19Z
date_updated: 2020-07-14T12:46:45Z
file_id: '5480'
file_name: IST-2013-123-v1+1_main-concur2013.pdf
file_size: 249790
relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '16'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '123'
status: public
title: How free is your linearizable concurrent data structure?
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5400'
abstract:
- lang: eng
text: We consider partially observable Markov decision processes (POMDPs) with ω-regular
conditions specified as parity objectives. The class of ω-regular languages extends
regular languages to infinite strings and provides a robust specification language
to express all properties used in verification, and parity objectives are canonical
forms to express ω-regular conditions. The qualitative analysis problem given
a POMDP and a parity objective asks whether there is a strategy to ensure that
the objective is satis- fied with probability 1 (resp. positive probability).
While the qualitative analysis problems are known to be undecidable even for very
special cases of parity objectives, we establish decidability (with optimal complexity)
of the qualitative analysis problems for POMDPs with all parity objectives under
finite- memory strategies. We establish asymptotically optimal (exponential) memory
bounds and EXPTIME- completeness of the qualitative analysis problems under finite-memory
strategies for POMDPs with parity objectives.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Martin
full_name: Chmelik, Martin
id: 3624234E-F248-11E8-B48F-1D18A9856A87
last_name: Chmelik
- first_name: Mathieu
full_name: Tracol, Mathieu
id: 3F54FA38-F248-11E8-B48F-1D18A9856A87
last_name: Tracol
citation:
ama: Chatterjee K, Chmelik M, Tracol M. What Is Decidable about Partially Observable
Markov Decision Processes with ω-Regular Objectives. IST Austria; 2013. doi:10.15479/AT:IST-2013-109-v1-1
apa: Chatterjee, K., Chmelik, M., & Tracol, M. (2013). What is decidable
about partially observable Markov decision processes with ω-regular objectives.
IST Austria. https://doi.org/10.15479/AT:IST-2013-109-v1-1
chicago: Chatterjee, Krishnendu, Martin Chmelik, and Mathieu Tracol. What Is
Decidable about Partially Observable Markov Decision Processes with ω-Regular
Objectives. IST Austria, 2013. https://doi.org/10.15479/AT:IST-2013-109-v1-1.
ieee: K. Chatterjee, M. Chmelik, and M. Tracol, What is decidable about partially
observable Markov decision processes with ω-regular objectives. IST Austria,
2013.
ista: Chatterjee K, Chmelik M, Tracol M. 2013. What is decidable about partially
observable Markov decision processes with ω-regular objectives, IST Austria, 41p.
mla: Chatterjee, Krishnendu, et al. What Is Decidable about Partially Observable
Markov Decision Processes with ω-Regular Objectives. IST Austria, 2013, doi:10.15479/AT:IST-2013-109-v1-1.
short: K. Chatterjee, M. Chmelik, M. Tracol, What Is Decidable about Partially Observable
Markov Decision Processes with ω-Regular Objectives, IST Austria, 2013.
date_created: 2018-12-12T11:39:07Z
date_published: 2013-02-20T00:00:00Z
date_updated: 2023-02-23T10:36:45Z
day: '20'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-109-v1-1
file:
- access_level: open_access
checksum: cbba40210788a1b22c6cf06433b5ed6f
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:06Z
date_updated: 2020-07-14T12:46:44Z
file_id: '5467'
file_name: IST-2013-109-v1+1_What_is_Decidable_about_Partially_Observable_Markov_Decision_Processes_with_ω-Regular_Objectives.pdf
file_size: 483407
relation: main_file
file_date_updated: 2020-07-14T12:46:44Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '41'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '109'
related_material:
record:
- id: '1477'
relation: later_version
status: public
- id: '2295'
relation: later_version
status: public
status: public
title: What is decidable about partially observable Markov decision processes with
ω-regular objectives
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5404'
abstract:
- lang: eng
text: 'We study finite-state two-player (zero-sum) concurrent mean-payoff games
played on a graph. We focus on the important sub-class of ergodic games where
all states are visited infinitely often with probability 1. The algorithmic study
of ergodic games was initiated in a seminal work of Hoffman and Karp in 1966,
but all basic complexity questions have remained unresolved. Our main results
for ergodic games are as follows: We establish (1) an optimal exponential bound
on the patience of stationary strategies (where patience of a distribution is
the inverse of the smallest positive probability and represents a complexity measure
of a stationary strategy); (2) the approximation problem lie in FNP; (3) the approximation
problem is at least as hard as the decision problem for simple stochastic games
(for which NP and coNP is the long-standing best known bound). We show that the
exact value can be expressed in the existential theory of the reals, and also
establish square-root sum hardness for a related class of games.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Rasmus
full_name: Ibsen-Jensen, Rasmus
id: 3B699956-F248-11E8-B48F-1D18A9856A87
last_name: Ibsen-Jensen
orcid: 0000-0003-4783-0389
citation:
ama: Chatterjee K, Ibsen-Jensen R. The Complexity of Ergodic Games. IST Austria;
2013. doi:10.15479/AT:IST-2013-127-v1-1
apa: Chatterjee, K., & Ibsen-Jensen, R. (2013). The complexity of ergodic
games. IST Austria. https://doi.org/10.15479/AT:IST-2013-127-v1-1
chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. The Complexity of Ergodic
Games. IST Austria, 2013. https://doi.org/10.15479/AT:IST-2013-127-v1-1.
ieee: K. Chatterjee and R. Ibsen-Jensen, The complexity of ergodic games.
IST Austria, 2013.
ista: Chatterjee K, Ibsen-Jensen R. 2013. The complexity of ergodic games, IST Austria,
29p.
mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. The Complexity of Ergodic
Games. IST Austria, 2013, doi:10.15479/AT:IST-2013-127-v1-1.
short: K. Chatterjee, R. Ibsen-Jensen, The Complexity of Ergodic Games, IST Austria,
2013.
date_created: 2018-12-12T11:39:08Z
date_published: 2013-07-03T00:00:00Z
date_updated: 2023-02-23T10:30:55Z
day: '03'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-127-v1-1
file:
- access_level: open_access
checksum: 79ee5e677a82611ce06e0360c69d494a
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:35Z
date_updated: 2020-07-14T12:46:45Z
file_id: '5496'
file_name: IST-2013-127-v1+1_ergodic.pdf
file_size: 517275
relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '29'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '127'
related_material:
record:
- id: '2162'
relation: later_version
status: public
status: public
title: The complexity of ergodic games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5405'
abstract:
- lang: eng
text: "The theory of graph games is the foundation for modeling and synthesizing
reactive processes. In the synthesis of stochastic processes, we use 2-1/2-player
games where some transitions of the game graph are controlled by two adversarial
players, the System and the Environment, and the other transitions are determined
probabilistically. We consider 2-1/2-player games where the objective of the System
is the conjunction of a qualitative objective (specified as a parity condition)
and a quantitative objective (specified as a mean-payoff condition). We establish
that the problem of deciding whether the System can ensure that the probability
to satisfy the mean-payoff parity objective is at least a given threshold is in
NP ∩ coNP, matching the best known bound in the special case of 2-player games
(where all transitions are deterministic) with only parity objectives, or with
only mean-payoff objectives. We present an algorithm running\r\nin time O(d ·
n^{2d}·MeanGame) to compute the set of almost-sure winning states from which the
objective\r\ncan be ensured with probability 1, where n is the number of states
of the game, d the number of priorities\r\nof the parity objective, and MeanGame
is the complexity to compute the set of almost-sure winning states\r\nin 2-1/2-player
mean-payoff games. Our results are useful in the synthesis of stochastic reactive
systems\r\nwith both functional requirement (given as a qualitative objective)
and performance requirement (given\r\nas a quantitative objective)."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Laurent
full_name: Doyen, Laurent
last_name: Doyen
- first_name: Hugo
full_name: Gimbert, Hugo
last_name: Gimbert
- first_name: Youssouf
full_name: Oualhadj, Youssouf
last_name: Oualhadj
citation:
ama: Chatterjee K, Doyen L, Gimbert H, Oualhadj Y. Perfect-Information Stochastic
Mean-Payoff Parity Games. IST Austria; 2013. doi:10.15479/AT:IST-2013-128-v1-1
apa: Chatterjee, K., Doyen, L., Gimbert, H., & Oualhadj, Y. (2013). Perfect-information
stochastic mean-payoff parity games. IST Austria. https://doi.org/10.15479/AT:IST-2013-128-v1-1
chicago: Chatterjee, Krishnendu, Laurent Doyen, Hugo Gimbert, and Youssouf Oualhadj.
Perfect-Information Stochastic Mean-Payoff Parity Games. IST Austria, 2013.
https://doi.org/10.15479/AT:IST-2013-128-v1-1.
ieee: K. Chatterjee, L. Doyen, H. Gimbert, and Y. Oualhadj, Perfect-information
stochastic mean-payoff parity games. IST Austria, 2013.
ista: Chatterjee K, Doyen L, Gimbert H, Oualhadj Y. 2013. Perfect-information stochastic
mean-payoff parity games, IST Austria, 22p.
mla: Chatterjee, Krishnendu, et al. Perfect-Information Stochastic Mean-Payoff
Parity Games. IST Austria, 2013, doi:10.15479/AT:IST-2013-128-v1-1.
short: K. Chatterjee, L. Doyen, H. Gimbert, Y. Oualhadj, Perfect-Information Stochastic
Mean-Payoff Parity Games, IST Austria, 2013.
date_created: 2018-12-12T11:39:09Z
date_published: 2013-07-08T00:00:00Z
date_updated: 2023-02-23T10:33:08Z
day: '08'
ddc:
- '000'
- '005'
- '510'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-128-v1-1
file:
- access_level: open_access
checksum: ede787a10e74e4f7db302fab8f12f3ca
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:54Z
date_updated: 2020-07-14T12:46:45Z
file_id: '5516'
file_name: IST-2013-128-v1+1_full_stoch_mpp.pdf
file_size: 387467
relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '22'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '128'
related_material:
record:
- id: '2212'
relation: later_version
status: public
status: public
title: Perfect-information stochastic mean-payoff parity games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5409'
abstract:
- lang: eng
text: "The edit distance between two (untimed) traces is the minimum cost of a sequence
of edit operations (insertion, deletion, or substitution) needed to transform
one trace to the other. Edit distances have been extensively studied in the untimed
setting, and form the basis for approximate matching of sequences in different
domains such as coding theory, parsing, and speech recognition. \r\nIn this paper,
we lift the study of edit distances from untimed languages to the timed setting.
We define an edit distance between timed words which incorporates both the edit
distance between the untimed words and the absolute difference in timestamps.
Our edit distance between two timed words is computable in polynomial time. Further,
we show that the edit distance between a timed word and a timed language generated
by a timed automaton, defined as the edit distance between the word and the closest
word in the language, is PSPACE-complete. While computing the edit distance between
two timed automata is undecidable, we show that the approximate version, where
we decide if the edit distance between two timed automata is either less than
a given parameter or more than delta away from the parameter, for delta>0, can
be solved in exponential space and is EXPSPACE-hard. Our definitions and techniques
can be generalized to the setting of hybrid systems, and we show analogous decidability
results for rectangular automata."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Rasmus
full_name: Ibsen-Jensen, Rasmus
id: 3B699956-F248-11E8-B48F-1D18A9856A87
last_name: Ibsen-Jensen
orcid: 0000-0003-4783-0389
- first_name: Rupak
full_name: Majumdar, Rupak
last_name: Majumdar
citation:
ama: Chatterjee K, Ibsen-Jensen R, Majumdar R. Edit Distance for Timed Automata.
IST Austria; 2013. doi:10.15479/AT:IST-2013-144-v1-1
apa: Chatterjee, K., Ibsen-Jensen, R., & Majumdar, R. (2013). Edit distance
for timed automata. IST Austria. https://doi.org/10.15479/AT:IST-2013-144-v1-1
chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Rupak Majumdar. Edit
Distance for Timed Automata. IST Austria, 2013. https://doi.org/10.15479/AT:IST-2013-144-v1-1.
ieee: K. Chatterjee, R. Ibsen-Jensen, and R. Majumdar, Edit distance for timed
automata. IST Austria, 2013.
ista: Chatterjee K, Ibsen-Jensen R, Majumdar R. 2013. Edit distance for timed automata,
IST Austria, 12p.
mla: Chatterjee, Krishnendu, et al. Edit Distance for Timed Automata. IST
Austria, 2013, doi:10.15479/AT:IST-2013-144-v1-1.
short: K. Chatterjee, R. Ibsen-Jensen, R. Majumdar, Edit Distance for Timed Automata,
IST Austria, 2013.
date_created: 2018-12-12T11:39:10Z
date_published: 2013-10-30T00:00:00Z
date_updated: 2023-02-23T10:33:18Z
day: '30'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-144-v1-1
file:
- access_level: open_access
checksum: 0f7633081ba8299c543322f0ad08571f
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:08Z
date_updated: 2020-07-14T12:46:46Z
file_id: '5469'
file_name: IST-2013-144-v1+1_main.pdf
file_size: 336377
relation: main_file
file_date_updated: 2020-07-14T12:46:46Z
has_accepted_license: '1'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: '12'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '144'
related_material:
record:
- id: '2216'
relation: later_version
status: public
status: public
title: Edit distance for timed automata
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5406'
abstract:
- lang: eng
text: 'We consider the distributed synthesis problem fortemporal logic specifications.
Traditionally, the problem has been studied for LTL, and the previous results
show that the problem is decidable iff there is no information fork in the architecture.
We consider the problem for fragments of LTLand our main results are as follows:
(1) We show that the problem is undecidable for architectures with information
forks even for the fragment of LTL with temporal operators restricted to next
and eventually. (2) For specifications restricted to globally along with non-nested
next operators, we establish decidability (in EXPSPACE) for star architectures
where the processes receive disjoint inputs, whereas we establish undecidability
for architectures containing an information fork-meet structure. (3)Finally, we
consider LTL without the next operator, and establish decidability (NEXPTIME-complete)
for all architectures for a fragment that consists of a set of safety assumptions,
and a set of guarantees where each guarantee is a safety, reachability, or liveness
condition.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Jan
full_name: Otop, Jan
id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
last_name: Otop
- first_name: Andreas
full_name: Pavlogiannis, Andreas
id: 49704004-F248-11E8-B48F-1D18A9856A87
last_name: Pavlogiannis
orcid: 0000-0002-8943-0722
citation:
ama: Chatterjee K, Henzinger TA, Otop J, Pavlogiannis A. Distributed Synthesis
for LTL Fragments. IST Austria; 2013. doi:10.15479/AT:IST-2013-130-v1-1
apa: Chatterjee, K., Henzinger, T. A., Otop, J., & Pavlogiannis, A. (2013).
Distributed synthesis for LTL Fragments. IST Austria. https://doi.org/10.15479/AT:IST-2013-130-v1-1
chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Jan Otop, and Andreas Pavlogiannis.
Distributed Synthesis for LTL Fragments. IST Austria, 2013. https://doi.org/10.15479/AT:IST-2013-130-v1-1.
ieee: K. Chatterjee, T. A. Henzinger, J. Otop, and A. Pavlogiannis, Distributed
synthesis for LTL Fragments. IST Austria, 2013.
ista: Chatterjee K, Henzinger TA, Otop J, Pavlogiannis A. 2013. Distributed synthesis
for LTL Fragments, IST Austria, 11p.
mla: Chatterjee, Krishnendu, et al. Distributed Synthesis for LTL Fragments.
IST Austria, 2013, doi:10.15479/AT:IST-2013-130-v1-1.
short: K. Chatterjee, T.A. Henzinger, J. Otop, A. Pavlogiannis, Distributed Synthesis
for LTL Fragments, IST Austria, 2013.
date_created: 2018-12-12T11:39:09Z
date_published: 2013-07-08T00:00:00Z
date_updated: 2023-02-21T17:01:26Z
day: '08'
ddc:
- '005'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2013-130-v1-1
file:
- access_level: open_access
checksum: 855513ebaf6f72228800c5fdb522f93c
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:18Z
date_updated: 2020-07-14T12:46:45Z
file_id: '5540'
file_name: IST-2013-130-v1+1_Distributed_Synthesis.pdf
file_size: 467895
relation: main_file
file_date_updated: 2020-07-14T12:46:45Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '11'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '130'
related_material:
record:
- id: '1376'
relation: later_version
status: public
status: public
title: Distributed synthesis for LTL Fragments
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5408'
abstract:
- lang: eng
text: "We consider two-player partial-observation stochastic games where player
1 has partial observation and player 2 has perfect observation. The winning condition
we study are omega-regular conditions specified as parity objectives. The qualitative
analysis problem given a partial-observation stochastic game and a parity objective
asks whether there is a strategy to ensure that the objective is satisfied with
probability 1 (resp. positive probability). While the qualitative analysis problems
are known to be undecidable even for very special cases of parity objectives,
they were shown to be decidable in 2EXPTIME under finite-memory strategies. We
improve the complexity and show that the qualitative analysis problems for partial-observation
stochastic parity games under finite-memory strategies are \r\nEXPTIME-complete;
and also establish optimal (exponential) memory bounds for finite-memory strategies
required for qualitative analysis. "
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Laurent
full_name: Doyen, Laurent
last_name: Doyen
- first_name: Sumit
full_name: Nain, Sumit
last_name: Nain
- first_name: Moshe
full_name: Vardi, Moshe
last_name: Vardi
citation:
ama: Chatterjee K, Doyen L, Nain S, Vardi M. The Complexity of Partial-Observation
Stochastic Parity Games with Finite-Memory Strategies. IST Austria; 2013.
doi:10.15479/AT:IST-2013-141-v1-1
apa: Chatterjee, K., Doyen, L., Nain, S., & Vardi, M. (2013). The complexity
of partial-observation stochastic parity games with finite-memory strategies.
IST Austria. https://doi.org/10.15479/AT:IST-2013-141-v1-1
chicago: Chatterjee, Krishnendu, Laurent Doyen, Sumit Nain, and Moshe Vardi. The
Complexity of Partial-Observation Stochastic Parity Games with Finite-Memory Strategies.
IST Austria, 2013. https://doi.org/10.15479/AT:IST-2013-141-v1-1.
ieee: K. Chatterjee, L. Doyen, S. Nain, and M. Vardi, The complexity of partial-observation
stochastic parity games with finite-memory strategies. IST Austria, 2013.
ista: Chatterjee K, Doyen L, Nain S, Vardi M. 2013. The complexity of partial-observation
stochastic parity games with finite-memory strategies, IST Austria, 17p.
mla: Chatterjee, Krishnendu, et al. The Complexity of Partial-Observation Stochastic
Parity Games with Finite-Memory Strategies. IST Austria, 2013, doi:10.15479/AT:IST-2013-141-v1-1.
short: K. Chatterjee, L. Doyen, S. Nain, M. Vardi, The Complexity of Partial-Observation
Stochastic Parity Games with Finite-Memory Strategies, IST Austria, 2013.
date_created: 2018-12-12T11:39:10Z
date_published: 2013-09-12T00:00:00Z
date_updated: 2023-02-23T10:33:11Z
day: '12'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-141-v1-1
file:
- access_level: open_access
checksum: 226bc791124f8d3138379778ce834e86
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:16Z
date_updated: 2020-07-14T12:46:46Z
file_id: '5477'
file_name: IST-2013-141-v1+1_main-tech-rpt.pdf
file_size: 300481
relation: main_file
file_date_updated: 2020-07-14T12:46:46Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '17'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '141'
related_material:
record:
- id: '2213'
relation: later_version
status: public
status: public
title: The complexity of partial-observation stochastic parity games with finite-memory
strategies
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5410'
abstract:
- lang: eng
text: "Board games, like Tic-Tac-Toe and CONNECT-4, play an important role not only
in development of mathematical and logical skills, but also in emotional and social
development. In this paper, we address the problem of generating targeted starting
positions for such games. This can facilitate new approaches for bringing novice
players to mastery, and also leads to discovery of interesting game variants.
\r\nOur approach generates starting states of varying hardness levels for player
1 in a two-player board game, given rules of the board game, the desired number
of steps required for player 1 to win, and the expertise levels of the two players.
Our approach leverages symbolic methods and iterative simulation to efficiently
search the extremely large state space. We present experimental results that include
discovery of states of varying hardness levels for several simple grid-based board
games. Also, the presence of such states for standard game variants like Tic-Tac-Toe
on board size 4x4 opens up new games to be played that have not been played for
ages since the default start state is heavily biased. "
alternative_title:
- IST Austria Technical Report
author:
- first_name: Umair
full_name: Ahmed, Umair
last_name: Ahmed
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Sumit
full_name: Gulwani, Sumit
last_name: Gulwani
citation:
ama: Ahmed U, Chatterjee K, Gulwani S. Automatic Generation of Alternative Starting
Positions for Traditional Board Games. IST Austria; 2013. doi:10.15479/AT:IST-2013-146-v1-1
apa: Ahmed, U., Chatterjee, K., & Gulwani, S. (2013). Automatic generation
of alternative starting positions for traditional board games. IST Austria.
https://doi.org/10.15479/AT:IST-2013-146-v1-1
chicago: Ahmed, Umair, Krishnendu Chatterjee, and Sumit Gulwani. Automatic Generation
of Alternative Starting Positions for Traditional Board Games. IST Austria,
2013. https://doi.org/10.15479/AT:IST-2013-146-v1-1.
ieee: U. Ahmed, K. Chatterjee, and S. Gulwani, Automatic generation of alternative
starting positions for traditional board games. IST Austria, 2013.
ista: Ahmed U, Chatterjee K, Gulwani S. 2013. Automatic generation of alternative
starting positions for traditional board games, IST Austria, 13p.
mla: Ahmed, Umair, et al. Automatic Generation of Alternative Starting Positions
for Traditional Board Games. IST Austria, 2013, doi:10.15479/AT:IST-2013-146-v1-1.
short: U. Ahmed, K. Chatterjee, S. Gulwani, Automatic Generation of Alternative
Starting Positions for Traditional Board Games, IST Austria, 2013.
date_created: 2018-12-12T11:39:10Z
date_published: 2013-12-03T00:00:00Z
date_updated: 2023-02-23T10:00:50Z
day: '03'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2013-146-v1-1
file:
- access_level: open_access
checksum: 409f3aaaf1184e4057b89cbb449dac80
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:06Z
date_updated: 2020-07-14T12:46:46Z
file_id: '5528'
file_name: IST-2013-146-v1+1_main.pdf
file_size: 818189
relation: main_file
file_date_updated: 2020-07-14T12:46:46Z
has_accepted_license: '1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: '13'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '146'
related_material:
record:
- id: '1481'
relation: later_version
status: public
status: public
title: Automatic generation of alternative starting positions for traditional board
games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '6440'
abstract:
- lang: eng
text: In order to guarantee that each method of a data structure updates the logical
state exactly once, al-most all non-blocking implementations employ Compare-And-Swap
(CAS) based synchronization. For FIFO queue implementations this translates into concurrent enqueue or dequeue methods
competing among themselves to update the same variable, the tail or the head,
respectively, leading to high contention and poor scalability. Recent non-blocking
queue implementations try to alleviate high contentionby increasing the number
of contention points, all the while using CAS-based synchronization. Furthermore,
obtaining a wait-free implementation with competition is achieved by additional
synchronization which leads to further degradation of performance.In this paper
we formalize the notion of competitiveness of a synchronizing statement which
can beused as a measure for the scalability of concurrent implementations. We
present a new queue implementation, the Speculative Pairing (SP) queue, which,
as we show, decreases competitiveness by using Fetch-And-Increment (FAI) instead
of CAS. We prove that the SP queue is linearizable and lock-free.We also show
that replacing CAS with FAI leads to wait-freedom for dequeue methods without
an adverse effect on performance. In fact, our experiments suggest that the SP
queue can perform and scale better than the state-of-the-art queue implementations.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Hannes
full_name: Payer, Hannes
last_name: Payer
- first_name: Ali
full_name: Sezgin, Ali
id: 4C7638DA-F248-11E8-B48F-1D18A9856A87
last_name: Sezgin
citation:
ama: Henzinger TA, Payer H, Sezgin A. Replacing Competition with Cooperation
to Achieve Scalable Lock-Free FIFO Queues . IST Austria; 2013. doi:10.15479/AT:IST-2013-124-v1-1
apa: Henzinger, T. A., Payer, H., & Sezgin, A. (2013). Replacing competition
with cooperation to achieve scalable lock-free FIFO queues . IST Austria.
https://doi.org/10.15479/AT:IST-2013-124-v1-1
chicago: Henzinger, Thomas A, Hannes Payer, and Ali Sezgin. Replacing Competition
with Cooperation to Achieve Scalable Lock-Free FIFO Queues . IST Austria,
2013. https://doi.org/10.15479/AT:IST-2013-124-v1-1.
ieee: T. A. Henzinger, H. Payer, and A. Sezgin, Replacing competition with cooperation
to achieve scalable lock-free FIFO queues . IST Austria, 2013.
ista: Henzinger TA, Payer H, Sezgin A. 2013. Replacing competition with cooperation
to achieve scalable lock-free FIFO queues , IST Austria, 23p.
mla: Henzinger, Thomas A., et al. Replacing Competition with Cooperation to Achieve
Scalable Lock-Free FIFO Queues . IST Austria, 2013, doi:10.15479/AT:IST-2013-124-v1-1.
short: T.A. Henzinger, H. Payer, A. Sezgin, Replacing Competition with Cooperation
to Achieve Scalable Lock-Free FIFO Queues , IST Austria, 2013.
date_created: 2019-05-13T14:13:27Z
date_published: 2013-06-13T00:00:00Z
date_updated: 2020-07-14T23:06:19Z
day: '13'
ddc:
- '000'
- '005'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2013-124-v1-1
file:
- access_level: open_access
checksum: a219ba4eada6cd62befed52262ee15d4
content_type: application/pdf
creator: dernst
date_created: 2019-05-13T14:11:39Z
date_updated: 2020-07-14T12:47:30Z
file_id: '6441'
file_name: 2013_TechRep_Henzinger.pdf
file_size: 549684
relation: main_file
file_date_updated: 2020-07-14T12:47:30Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '23'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '124'
status: public
title: 'Replacing competition with cooperation to achieve scalable lock-free FIFO
queues '
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '5377'
abstract:
- lang: eng
text: 'Two-player games on graphs are central in many problems in formal verification
and program analysis such as synthesis and verification of open systems. In this
work we consider solving recursive game graphs (or pushdown game graphs) that
can model the control flow of sequential programs with recursion. While pushdown
games have been studied before with qualitative objectives, such as reachability
and ω-regular objectives, in this work we study for the first time such games
with the most well-studied quantitative objective, namely, mean-payoff objectives.
In pushdown games two types of strategies are relevant: (1) global strategies,
that depend on the entire global history; and (2) modular strategies, that have
only local memory and thus do not depend on the context of invocation, but only
on the history of the current invocation of the module. Our main results are as
follows: (1) One-player pushdown games with mean-payoff objectives under global
strategies are decidable in polynomial time. (2) Two- player pushdown games with
mean-payoff objectives under global strategies are undecidable. (3) One-player
pushdown games with mean-payoff objectives under modular strategies are NP- hard.
(4) Two-player pushdown games with mean-payoff objectives under modular strategies
can be solved in NP (i.e., both one-player and two-player pushdown games with
mean-payoff objectives under modular strategies are NP-complete). We also establish
the optimal strategy complexity showing that global strategies for mean-payoff
objectives require infinite memory even in one-player pushdown games; and memoryless
modular strategies are sufficient in two- player pushdown games. Finally we also
show that all the problems have the same complexity if the stack boundedness condition
is added, where along with the mean-payoff objective the player must also ensure
that the stack height is bounded.'
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: Yaron
full_name: Velner, Yaron
last_name: Velner
citation:
ama: Chatterjee K, Velner Y. Mean-Payoff Pushdown Games. IST Austria; 2012.
doi:10.15479/AT:IST-2012-0002
apa: Chatterjee, K., & Velner, Y. (2012). Mean-payoff pushdown games.
IST Austria. https://doi.org/10.15479/AT:IST-2012-0002
chicago: Chatterjee, Krishnendu, and Yaron Velner. Mean-Payoff Pushdown Games.
IST Austria, 2012. https://doi.org/10.15479/AT:IST-2012-0002.
ieee: K. Chatterjee and Y. Velner, Mean-payoff pushdown games. IST Austria,
2012.
ista: Chatterjee K, Velner Y. 2012. Mean-payoff pushdown games, IST Austria, 33p.
mla: Chatterjee, Krishnendu, and Yaron Velner. Mean-Payoff Pushdown Games.
IST Austria, 2012, doi:10.15479/AT:IST-2012-0002.
short: K. Chatterjee, Y. Velner, Mean-Payoff Pushdown Games, IST Austria, 2012.
date_created: 2018-12-12T11:38:59Z
date_published: 2012-07-02T00:00:00Z
date_updated: 2023-02-23T11:05:50Z
day: '02'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2012-0002
file:
- access_level: open_access
checksum: a03c08c1589dbb0c96183a8bcf3ab240
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:00Z
date_updated: 2020-07-14T12:46:38Z
file_id: '5522'
file_name: IST-2012-002_IST-2012-0002.pdf
file_size: 592098
relation: main_file
file_date_updated: 2020-07-14T12:46:38Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '33'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '10'
related_material:
record:
- id: '2956'
relation: later_version
status: public
status: public
title: Mean-payoff pushdown games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '5378'
abstract:
- lang: eng
text: 'One central issue in the formal design and analysis of reactive systems is
the notion of refinement that asks whether all behaviors of the implementation
is allowed by the specification. The local interpretation of behavior leads to
the notion of simulation. Alternating transition systems (ATSs) provide a general
model for composite reactive systems, and the simulation relation for ATSs is
known as alternating simulation. The simulation relation for fair transition systems
is called fair simulation. In this work our main contributions are as follows:
(1) We present an improved algorithm for fair simulation with Büchi fairness constraints;
our algorithm requires O(n3 · m) time as compared to the previous known O(n6)-time
algorithm, where n is the number of states and m is the number of transitions.
(2) We present a game based algorithm for alternating simulation that requires
O(m2)-time as compared to the previous known O((n · m)2)-time algorithm, where
n is the number of states and m is the size of transition relation. (3) We present
an iterative algorithm for alternating simulation that matches the time complexity
of the game based algorithm, but is more space efficient than the game based algorithm.'
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: Siddhesh
full_name: Chaubal, Siddhesh
last_name: Chaubal
- first_name: Pritish
full_name: Kamath, Pritish
last_name: Kamath
citation:
ama: Chatterjee K, Chaubal S, Kamath P. Faster Algorithms for Alternating Refinement
Relations. IST Austria; 2012. doi:10.15479/AT:IST-2012-0001
apa: Chatterjee, K., Chaubal, S., & Kamath, P. (2012). Faster algorithms
for alternating refinement relations. IST Austria. https://doi.org/10.15479/AT:IST-2012-0001
chicago: Chatterjee, Krishnendu, Siddhesh Chaubal, and Pritish Kamath. Faster
Algorithms for Alternating Refinement Relations. IST Austria, 2012. https://doi.org/10.15479/AT:IST-2012-0001.
ieee: K. Chatterjee, S. Chaubal, and P. Kamath, Faster algorithms for alternating
refinement relations. IST Austria, 2012.
ista: Chatterjee K, Chaubal S, Kamath P. 2012. Faster algorithms for alternating
refinement relations, IST Austria, 21p.
mla: Chatterjee, Krishnendu, et al. Faster Algorithms for Alternating Refinement
Relations. IST Austria, 2012, doi:10.15479/AT:IST-2012-0001.
short: K. Chatterjee, S. Chaubal, P. Kamath, Faster Algorithms for Alternating Refinement
Relations, IST Austria, 2012.
date_created: 2018-12-12T11:38:59Z
date_published: 2012-07-04T00:00:00Z
date_updated: 2023-02-23T12:21:38Z
day: '04'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2012-0001
file:
- access_level: open_access
checksum: ec8d1857cc7095d3de5107a0162ced37
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:28Z
date_updated: 2020-07-14T12:46:39Z
file_id: '5489'
file_name: IST-2012-0001_IST-2012-0001.pdf
file_size: 394256
relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '21'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '14'
related_material:
record:
- id: '497'
relation: later_version
status: public
status: public
title: Faster algorithms for alternating refinement relations
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '5396'
abstract:
- lang: eng
text: We consider the problem of inference in agraphical model with binary variables.
While in theory it is arguably preferable to compute marginal probabilities, in
practice researchers often use MAP inference due to the availability of efficient
discrete optimization algorithms. We bridge the gap between the two approaches
by introducing the Discrete Marginals technique in which approximate marginals
are obtained by minimizing an objective function with unary and pair-wise terms
over a discretized domain. This allows the use of techniques originally devel-oped
for MAP-MRF inference and learning. We explore two ways to set up the objective
function - by discretizing the Bethe free energy and by learning it from training
data. Experimental results show that for certain types of graphs a learned function
can out-perform the Bethe approximation. We also establish a link between the
Bethe free energy and submodular functions.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Filip
full_name: Korc, Filip
id: 476A2FD6-F248-11E8-B48F-1D18A9856A87
last_name: Korc
- first_name: Vladimir
full_name: Kolmogorov, Vladimir
id: 3D50B0BA-F248-11E8-B48F-1D18A9856A87
last_name: Kolmogorov
- first_name: Christoph
full_name: Lampert, Christoph
id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
last_name: Lampert
orcid: 0000-0001-8622-7887
citation:
ama: Korc F, Kolmogorov V, Lampert C. Approximating Marginals Using Discrete
Energy Minimization. IST Austria; 2012. doi:10.15479/AT:IST-2012-0003
apa: Korc, F., Kolmogorov, V., & Lampert, C. (2012). Approximating marginals
using discrete energy minimization. IST Austria. https://doi.org/10.15479/AT:IST-2012-0003
chicago: Korc, Filip, Vladimir Kolmogorov, and Christoph Lampert. Approximating
Marginals Using Discrete Energy Minimization. IST Austria, 2012. https://doi.org/10.15479/AT:IST-2012-0003.
ieee: F. Korc, V. Kolmogorov, and C. Lampert, Approximating marginals using discrete
energy minimization. IST Austria, 2012.
ista: Korc F, Kolmogorov V, Lampert C. 2012. Approximating marginals using discrete
energy minimization, IST Austria, 13p.
mla: Korc, Filip, et al. Approximating Marginals Using Discrete Energy Minimization.
IST Austria, 2012, doi:10.15479/AT:IST-2012-0003.
short: F. Korc, V. Kolmogorov, C. Lampert, Approximating Marginals Using Discrete
Energy Minimization, IST Austria, 2012.
date_created: 2018-12-12T11:39:06Z
date_published: 2012-07-23T00:00:00Z
date_updated: 2023-02-23T11:13:22Z
day: '23'
ddc:
- '000'
department:
- _id: VlKo
- _id: ChLa
doi: 10.15479/AT:IST-2012-0003
file:
- access_level: open_access
checksum: 7e0ba85ad123b13223aaf6cdde2d288c
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:29Z
date_updated: 2020-07-14T12:46:44Z
file_id: '5490'
file_name: IST-2012-0003_IST-2012-0003.pdf
file_size: 618744
relation: main_file
file_date_updated: 2020-07-14T12:46:44Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '13'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '36'
related_material:
record:
- id: '3124'
relation: earlier_version
status: public
status: public
title: Approximating marginals using discrete energy minimization
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '5379'
abstract:
- lang: eng
text: Computing the winning set for Büchi objectives in alternating games on graphs
is a central problem in computer aided verification with a large number of applications.
The long standing best known upper bound for solving the problem is ̃O(n·m), where
n is the number of vertices and m is the number of edges in the graph. We are
the first to break the ̃O(n·m) boundary by presenting a new technique that reduces
the running time to O(n2). This bound also leads to O(n2) time algorithms for
computing the set of almost-sure winning vertices for Büchi objectives (1) in
alternating games with probabilistic transitions (improving an earlier bound of
O(n·m)), (2) in concurrent graph games with constant actions (improving an earlier
bound of O(n3)), and (3) in Markov decision processes (improving for m > n4/3
an earlier bound of O(min(m1.5, m·n2/3)). We also show that the same technique
can be used to compute the maximal end-component decomposition of a graph in time
O(n2), which is an improvement over earlier bounds for m > n4/3. Finally, we show
how to maintain the winning set for Büchi objectives in alternating games under
a sequence of edge insertions or a sequence of edge deletions in O(n) amortized
time per operation. This is the first dynamic algorithm for this problem.
alternative_title:
- IST Austria Technical Report
article_processing_charge: No
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Monika H
full_name: Henzinger, Monika H
id: 540c9bbd-f2de-11ec-812d-d04a5be85630
last_name: Henzinger
orcid: 0000-0002-5008-6530
citation:
ama: Chatterjee K, Henzinger MH. An O(N2) Time Algorithm for Alternating Büchi
Games. IST Austria; 2011. doi:10.15479/AT:IST-2011-0009
apa: Chatterjee, K., & Henzinger, M. H. (2011). An O(n2) time algorithm for
alternating Büchi games. IST Austria. https://doi.org/10.15479/AT:IST-2011-0009
chicago: Chatterjee, Krishnendu, and Monika H Henzinger. An O(N2) Time Algorithm
for Alternating Büchi Games. IST Austria, 2011. https://doi.org/10.15479/AT:IST-2011-0009.
ieee: K. Chatterjee and M. H. Henzinger, An O(n2) time algorithm for alternating
Büchi games. IST Austria, 2011.
ista: Chatterjee K, Henzinger MH. 2011. An O(n2) time algorithm for alternating
Büchi games, IST Austria, 20p.
mla: Chatterjee, Krishnendu, and Monika H. Henzinger. An O(N2) Time Algorithm
for Alternating Büchi Games. IST Austria, 2011, doi:10.15479/AT:IST-2011-0009.
short: K. Chatterjee, M.H. Henzinger, An O(N2) Time Algorithm for Alternating Büchi
Games, IST Austria, 2011.
date_created: 2018-12-12T11:38:59Z
date_published: 2011-07-11T00:00:00Z
date_updated: 2023-02-23T11:15:12Z
day: '11'
ddc:
- '000'
- '004'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0009
file:
- access_level: open_access
checksum: 0b354264229045d982332fd2cb5b9a26
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:43Z
date_updated: 2020-07-14T12:46:39Z
file_id: '5504'
file_name: IST-2011-0009_IST-2011-0009.pdf
file_size: 388665
relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '20'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '15'
related_material:
record:
- id: '3165'
relation: later_version
status: public
status: public
title: An O(n2) time algorithm for alternating Büchi games
type: technical_report
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2011'
...
---
_id: '5381'
abstract:
- lang: eng
text: "In two-player finite-state stochastic games of partial obser- vation on graphs,
in every state of the graph, the players simultaneously choose an action, and
their joint actions determine a probability distri- bution over the successor
states. The game is played for infinitely many rounds and thus the players construct
an infinite path in the graph. We consider reachability objectives where the first
player tries to ensure a target state to be visited almost-surely (i.e., with
probability 1) or pos- itively (i.e., with positive probability), no matter the
strategy of the second player.\r\n\r\nWe classify such games according to the
information and to the power of randomization available to the players. On the
basis of information, the game can be one-sided with either (a) player 1, or (b)
player 2 having partial observation (and the other player has perfect observation),
or two- sided with (c) both players having partial observation. On the basis of
randomization, (a) the players may not be allowed to use randomization (pure strategies),
or (b) they may choose a probability distribution over actions but the actual
random choice is external and not visible to the player (actions invisible), or
(c) they may use full randomization.\r\n\r\nOur main results for pure strategies
are as follows: (1) For one-sided games with player 2 perfect observation we show
that (in contrast to full randomized strategies) belief-based (subset-construction
based) strate- gies are not sufficient, and present an exponential upper bound
on mem- ory both for almost-sure and positive winning strategies; we show that
the problem of deciding the existence of almost-sure and positive winning strategies
for player 1 is EXPTIME-complete and present symbolic algo- rithms that avoid
the explicit exponential construction. (2) For one-sided games with player 1 perfect
observation we show that non-elementary memory is both necessary and sufficient
for both almost-sure and posi- tive winning strategies. (3) We show that for the
general (two-sided) case finite-memory strategies are sufficient for both positive
and almost-sure winning, and at least non-elementary memory is required. We establish
the equivalence of the almost-sure winning problems for pure strategies and for
randomized strategies with actions invisible. Our equivalence re- sult exhibit
serious flaws in previous results in the literature: we show a non-elementary
memory lower bound for almost-sure winning whereas an exponential upper bound
was previously claimed."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Laurent
full_name: Doyen, Laurent
last_name: Doyen
citation:
ama: 'Chatterjee K, Doyen L. Partial-Observation Stochastic Games: How to Win
When Belief Fails. IST Austria; 2011. doi:10.15479/AT:IST-2011-0007'
apa: 'Chatterjee, K., & Doyen, L. (2011). Partial-observation stochastic
games: How to win when belief fails. IST Austria. https://doi.org/10.15479/AT:IST-2011-0007'
chicago: 'Chatterjee, Krishnendu, and Laurent Doyen. Partial-Observation Stochastic
Games: How to Win When Belief Fails. IST Austria, 2011. https://doi.org/10.15479/AT:IST-2011-0007.'
ieee: 'K. Chatterjee and L. Doyen, Partial-observation stochastic games: How
to win when belief fails. IST Austria, 2011.'
ista: 'Chatterjee K, Doyen L. 2011. Partial-observation stochastic games: How to
win when belief fails, IST Austria, 43p.'
mla: 'Chatterjee, Krishnendu, and Laurent Doyen. Partial-Observation Stochastic
Games: How to Win When Belief Fails. IST Austria, 2011, doi:10.15479/AT:IST-2011-0007.'
short: 'K. Chatterjee, L. Doyen, Partial-Observation Stochastic Games: How to Win
When Belief Fails, IST Austria, 2011.'
date_created: 2018-12-12T11:39:00Z
date_published: 2011-07-05T00:00:00Z
date_updated: 2023-02-23T11:05:48Z
day: '05'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0007
file:
- access_level: open_access
checksum: 06bf6dfc97f6006e3fd0e9a3f31bc961
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:27Z
date_updated: 2020-07-14T12:46:39Z
file_id: '5488'
file_name: IST-2011-0007_IST-2011-0007.pdf
file_size: 574055
relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '43'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '17'
related_material:
record:
- id: '1903'
relation: later_version
status: public
- id: '2211'
relation: later_version
status: public
- id: '2955'
relation: later_version
status: public
status: public
title: 'Partial-observation stochastic games: How to win when belief fails'
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5380'
abstract:
- lang: eng
text: 'We consider 2-player games played on a finite state space for an infinite
number of rounds. The games are concurrent: in each round, the two players (player
1 and player 2) choose their moves independently and simultaneously; the current
state and the two moves determine the successor state. We study concurrent games
with ω-regular winning conditions specified as parity objectives. We consider
the qualitative analysis problems: the computation of the almost-sure and limit-sure
winning set of states, where player 1 can ensure to win with probability 1 and
with probability arbitrarily close to 1, respectively. In general the almost-sure
and limit-sure winning strategies require both infinite-memory as well as infinite-precision
(to describe probabilities). We study the bounded-rationality problem for qualitative
analysis of concurrent parity games, where the strategy set for player 1 is restricted
to bounded-resource strategies. In terms of precision, strategies can be deterministic,
uniform, finite-precision or infinite-precision; and in terms of memory, strategies
can be memoryless, finite-memory or infinite-memory. We present a precise and
complete characterization of the qualitative winning sets for all combinations
of classes of strategies. In particular, we show that uniform memoryless strategies
are as powerful as finite-precision infinite-memory strategies, and infinite-precision
memoryless strategies are as powerful as infinite-precision finite-memory strategies. We
show that the winning sets can be computed in O(n2d+3) time, where n is the size
of the game structure and 2d is the number of priorities (or colors), and our
algorithms are symbolic. The membership problem of whether a state belongs to
a winning set can be decided in NP ∩ coNP. While this complexity is the same as
for the simpler class of turn-based parity games, where in each state only one
of the two players has a choice of moves, our algorithms,that are obtained by
characterization of the winning sets as μ-calculus formulas, are considerably
more involved than those for turn-based games.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
citation:
ama: Chatterjee K. Bounded Rationality in Concurrent Parity Games. IST Austria;
2011. doi:10.15479/AT:IST-2011-0008
apa: Chatterjee, K. (2011). Bounded rationality in concurrent parity games.
IST Austria. https://doi.org/10.15479/AT:IST-2011-0008
chicago: Chatterjee, Krishnendu. Bounded Rationality in Concurrent Parity Games.
IST Austria, 2011. https://doi.org/10.15479/AT:IST-2011-0008.
ieee: K. Chatterjee, Bounded rationality in concurrent parity games. IST
Austria, 2011.
ista: Chatterjee K. 2011. Bounded rationality in concurrent parity games, IST Austria,
53p.
mla: Chatterjee, Krishnendu. Bounded Rationality in Concurrent Parity Games.
IST Austria, 2011, doi:10.15479/AT:IST-2011-0008.
short: K. Chatterjee, Bounded Rationality in Concurrent Parity Games, IST Austria,
2011.
date_created: 2018-12-12T11:39:00Z
date_published: 2011-07-11T00:00:00Z
date_updated: 2023-02-23T11:22:53Z
day: '11'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0008
file:
- access_level: open_access
checksum: 0fd38186409be819a911c4990fa79d1f
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:22Z
date_updated: 2020-07-14T12:46:39Z
file_id: '5544'
file_name: IST-2011-0008_IST-2011-0008.pdf
file_size: 500399
relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '53'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '16'
related_material:
record:
- id: '3338'
relation: later_version
status: public
status: public
title: Bounded rationality in concurrent parity games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5382'
abstract:
- lang: eng
text: 'We consider two-player stochastic games played on a finite state space for
an infinite num- ber of rounds. The games are concurrent: in each round, the two
players (player 1 and player 2) choose their moves independently and simultaneously;
the current state and the two moves determine a probability distribution over
the successor states. We also consider the important special case of turn-based
stochastic games where players make moves in turns, rather than concurrently.
We study concurrent games with ω-regular winning conditions specified as parity
objectives. The value for player 1 for a parity objective is the maximal probability
with which the player can guarantee the satisfaction of the objective against
all strategies of the opponent. We study the problem of continuity and robustness
of the value function in concurrent and turn-based stochastic parity games with
respect to imprecision in the transition probabilities. We present quantitative
bounds on the difference of the value function (in terms of the imprecision of
the transition probabilities) and show the value continuity for structurally equivalent
concurrent games (two games are structurally equivalent if the support of the
transition func- tion is same and the probabilities differ). We also show robustness
of optimal strategies for structurally equivalent turn-based stochastic parity
games. Finally we show that the value continuity property breaks without the structurally
equivalent assumption (even for Markov chains) and show that our quantitative
bound is asymptotically optimal. Hence our results are tight (the assumption is
both necessary and sufficient) and optimal (our quantitative bound is asymptotically
optimal).'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
citation:
ama: Chatterjee K. Robustness of Structurally Equivalent Concurrent Parity Games.
IST Austria; 2011. doi:10.15479/AT:IST-2011-0006
apa: Chatterjee, K. (2011). Robustness of structurally equivalent concurrent
parity games. IST Austria. https://doi.org/10.15479/AT:IST-2011-0006
chicago: Chatterjee, Krishnendu. Robustness of Structurally Equivalent Concurrent
Parity Games. IST Austria, 2011. https://doi.org/10.15479/AT:IST-2011-0006.
ieee: K. Chatterjee, Robustness of structurally equivalent concurrent parity
games. IST Austria, 2011.
ista: Chatterjee K. 2011. Robustness of structurally equivalent concurrent parity
games, IST Austria, 18p.
mla: Chatterjee, Krishnendu. Robustness of Structurally Equivalent Concurrent
Parity Games. IST Austria, 2011, doi:10.15479/AT:IST-2011-0006.
short: K. Chatterjee, Robustness of Structurally Equivalent Concurrent Parity Games,
IST Austria, 2011.
date_created: 2018-12-12T11:39:00Z
date_published: 2011-06-27T00:00:00Z
date_updated: 2023-02-23T11:23:01Z
day: '27'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0006
file:
- access_level: open_access
checksum: 1322b652d6ab07eb5248298a3f91c1cf
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:24Z
date_updated: 2020-07-14T12:46:40Z
file_id: '5546'
file_name: IST-2011-0006_IST-2011-0006.pdf
file_size: 335997
relation: main_file
file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '18'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '18'
related_material:
record:
- id: '3341'
relation: later_version
status: public
status: public
title: Robustness of structurally equivalent concurrent parity games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5385'
abstract:
- lang: eng
text: There is recently a significant effort to add quantitative objectives to formal
verification and synthesis. We introduce and investigate the extension of temporal
logics with quantitative atomic assertions, aiming for a general and flexible
framework for quantitative-oriented specifications. In the heart of quantitative
objectives lies the accumulation of values along a computation. It is either the
accumulated summation, as with the energy objectives, or the accumulated average,
as with the mean-payoff objectives. We investigate the extension of temporal logics
with the prefix-accumulation assertions Sum(v) ≥ c and Avg(v) ≥ c, where v is
a numeric variable of the system, c is a constant rational number, and Sum(v)
and Avg(v) denote the accumulated sum and average of the values of v from the
beginning of the computation up to the current point of time. We also allow the
path-accumulation assertions LimInfAvg(v) ≥ c and LimSupAvg(v) ≥ c, referring
to the average value along an entire computation. We study the border of decidability
for extensions of various temporal logics. In particular, we show that extending
the fragment of CTL that has only the EX, EF, AX, and AG temporal modalities by
prefix-accumulation assertions and extending LTL with path-accumulation assertions,
result in temporal logics whose model-checking problem is decidable. The extended
logics allow to significantly extend the currently known energy and mean-payoff
objectives. Moreover, the prefix-accumulation assertions may be refined with “controlled-accumulation”,
allowing, for example, to specify constraints on the average waiting time between
a request and a grant. On the negative side, we show that the fragment we point
to is, in a sense, the maximal logic whose extension with prefix-accumulation
assertions permits a decidable model-checking procedure. Extending a temporal
logic that has the EG or EU modalities, and in particular CTL and LTL, makes the
problem undecidable.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Udi
full_name: Boker, Udi
id: 31E297B6-F248-11E8-B48F-1D18A9856A87
last_name: Boker
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Orna
full_name: Kupferman, Orna
last_name: Kupferman
citation:
ama: Boker U, Chatterjee K, Henzinger TA, Kupferman O. Temporal Specifications
with Accumulative Values. IST Austria; 2011. doi:10.15479/AT:IST-2011-0003
apa: Boker, U., Chatterjee, K., Henzinger, T. A., & Kupferman, O. (2011). Temporal
specifications with accumulative values. IST Austria. https://doi.org/10.15479/AT:IST-2011-0003
chicago: Boker, Udi, Krishnendu Chatterjee, Thomas A Henzinger, and Orna Kupferman.
Temporal Specifications with Accumulative Values. IST Austria, 2011. https://doi.org/10.15479/AT:IST-2011-0003.
ieee: U. Boker, K. Chatterjee, T. A. Henzinger, and O. Kupferman, Temporal specifications
with accumulative values. IST Austria, 2011.
ista: Boker U, Chatterjee K, Henzinger TA, Kupferman O. 2011. Temporal specifications
with accumulative values, IST Austria, 14p.
mla: Boker, Udi, et al. Temporal Specifications with Accumulative Values.
IST Austria, 2011, doi:10.15479/AT:IST-2011-0003.
short: U. Boker, K. Chatterjee, T.A. Henzinger, O. Kupferman, Temporal Specifications
with Accumulative Values, IST Austria, 2011.
date_created: 2018-12-12T11:39:02Z
date_published: 2011-04-04T00:00:00Z
date_updated: 2023-02-23T11:23:41Z
day: '04'
ddc:
- '000'
- '004'
department:
- _id: ToHe
- _id: KrCh
doi: 10.15479/AT:IST-2011-0003
ec_funded: 1
file:
- access_level: open_access
checksum: 8491d0d48c4911620ecd5350b413c11e
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:00Z
date_updated: 2020-07-14T12:46:41Z
file_id: '5461'
file_name: IST-2011-0003_IST-2011-0003.pdf
file_size: 366281
relation: main_file
file_date_updated: 2020-07-14T12:46:41Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '14'
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '215543'
name: COMponent-Based Embedded Systems design Techniques
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '267989'
name: Quantitative Reactive Modeling
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '214373'
name: Design for Embedded Systems
- _id: 2587B514-B435-11E9-9278-68D0E5697425
name: Microsoft Research Faculty Fellowship
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '21'
related_material:
record:
- id: '2038'
relation: later_version
status: public
- id: '3356'
relation: later_version
status: public
status: public
title: Temporal specifications with accumulative values
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5386'
abstract:
- lang: eng
text: 'We introduce TopoCut: a new way to integrate knowledge about topological
properties (TPs) into random field image segmentation model. Instead of including
TPs as additional constraints during minimization of the energy function, we devise
an efficient algorithm for modifying the unary potentials such that the resulting
segmentation is guaranteed with the desired properties. Our method is more flexible
in the sense that it handles more topology constraints than previous methods,
which were only able to enforce pairwise or global connectivity. In particular,
our method is very fast, making it for the first time possible to enforce global
topological properties in practical image segmentation tasks.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Chao
full_name: Chen, Chao
id: 3E92416E-F248-11E8-B48F-1D18A9856A87
last_name: Chen
- first_name: Daniel
full_name: Freedman, Daniel
last_name: Freedman
- first_name: Christoph
full_name: Lampert, Christoph
id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
last_name: Lampert
orcid: 0000-0001-8622-7887
citation:
ama: Chen C, Freedman D, Lampert C. Enforcing Topological Constraints in Random
Field Image Segmentation. IST Austria; 2011. doi:10.15479/AT:IST-2011-0002
apa: Chen, C., Freedman, D., & Lampert, C. (2011). Enforcing topological
constraints in random field image segmentation. IST Austria. https://doi.org/10.15479/AT:IST-2011-0002
chicago: Chen, Chao, Daniel Freedman, and Christoph Lampert. Enforcing Topological
Constraints in Random Field Image Segmentation. IST Austria, 2011. https://doi.org/10.15479/AT:IST-2011-0002.
ieee: C. Chen, D. Freedman, and C. Lampert, Enforcing topological constraints
in random field image segmentation. IST Austria, 2011.
ista: Chen C, Freedman D, Lampert C. 2011. Enforcing topological constraints in
random field image segmentation, IST Austria, 69p.
mla: Chen, Chao, et al. Enforcing Topological Constraints in Random Field Image
Segmentation. IST Austria, 2011, doi:10.15479/AT:IST-2011-0002.
short: C. Chen, D. Freedman, C. Lampert, Enforcing Topological Constraints in Random
Field Image Segmentation, IST Austria, 2011.
date_created: 2018-12-12T11:39:02Z
date_published: 2011-03-28T00:00:00Z
date_updated: 2023-02-23T11:22:48Z
day: '28'
ddc:
- '000'
department:
- _id: ChLa
doi: 10.15479/AT:IST-2011-0002
file:
- access_level: open_access
checksum: ad64c2add5fe2ad10e9d5c669f3f9526
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:34Z
date_updated: 2020-07-14T12:46:41Z
file_id: '5495'
file_name: IST-2011-0002_IST-2011-0002.pdf
file_size: 26390601
relation: main_file
file_date_updated: 2020-07-14T12:46:41Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: '69'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '22'
related_material:
record:
- id: '3336'
relation: later_version
status: public
status: public
title: Enforcing topological constraints in random field image segmentation
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5383'
abstract:
- lang: eng
text: We present a new decidable logic called TREX for expressing constraints about
imperative tree data structures. In particular, TREX supports a transitive closure
operator that can express reachability constraints, which often appear in data
structure invariants. We show that our logic is closed under weakest precondition
computation, which enables its use for automated software verification. We further
show that satisfiability of formulas in TREX is decidable in NP. The low complexity
makes it an attractive alternative to more expensive logics such as monadic second-order
logic (MSOL) over trees, which have been traditionally used for reasoning about
tree data structures.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Thomas
full_name: Wies, Thomas
id: 447BFB88-F248-11E8-B48F-1D18A9856A87
last_name: Wies
- first_name: Marco
full_name: Muñiz, Marco
last_name: Muñiz
- first_name: Viktor
full_name: Kuncak, Viktor
last_name: Kuncak
citation:
ama: Wies T, Muñiz M, Kuncak V. On an Efficient Decision Procedure for Imperative
Tree Data Structures. IST Austria; 2011. doi:10.15479/AT:IST-2011-0005
apa: Wies, T., Muñiz, M., & Kuncak, V. (2011). On an efficient decision procedure
for imperative tree data structures. IST Austria. https://doi.org/10.15479/AT:IST-2011-0005
chicago: Wies, Thomas, Marco Muñiz, and Viktor Kuncak. On an Efficient Decision
Procedure for Imperative Tree Data Structures. IST Austria, 2011. https://doi.org/10.15479/AT:IST-2011-0005.
ieee: T. Wies, M. Muñiz, and V. Kuncak, On an efficient decision procedure for
imperative tree data structures. IST Austria, 2011.
ista: Wies T, Muñiz M, Kuncak V. 2011. On an efficient decision procedure for imperative
tree data structures, IST Austria, 25p.
mla: Wies, Thomas, et al. On an Efficient Decision Procedure for Imperative Tree
Data Structures. IST Austria, 2011, doi:10.15479/AT:IST-2011-0005.
short: T. Wies, M. Muñiz, V. Kuncak, On an Efficient Decision Procedure for Imperative
Tree Data Structures, IST Austria, 2011.
date_created: 2018-12-12T11:39:01Z
date_published: 2011-04-26T00:00:00Z
date_updated: 2023-02-23T11:22:16Z
day: '26'
ddc:
- '000'
- '006'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2011-0005
file:
- access_level: open_access
checksum: b20029184c4a819c5f4466a4a3d238b5
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:01Z
date_updated: 2020-07-14T12:46:40Z
file_id: '5462'
file_name: IST-2011-0005_IST-2011-0005.pdf
file_size: 619053
relation: main_file
file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '25'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '19'
related_material:
record:
- id: '3323'
relation: later_version
status: public
status: public
title: On an efficient decision procedure for imperative tree data structures
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5384'
abstract:
- lang: eng
text: 'We consider probabilistic automata on infinite words with acceptance defined
by parity conditions. We consider three qualitative decision problems: (i) the
positive decision problem asks whether there is a word that is accepted with positive
probability; (ii) the almost decision problem asks whether there is a word that
is accepted with probability 1; and (iii) the limit decision problem asks whether
for every ε > 0 there is a word that is accepted with probability at least 1 −
ε. We unify and generalize several decidability results for probabilistic automata
over infinite words, and identify a robust (closed under union and intersection)
subclass of probabilistic automata for which all the qualitative decision problems
are decidable for parity conditions. We also show that if the input words are
restricted to lasso shape words, then the positive and almost problems are decidable
for all probabilistic automata with parity conditions.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Mathieu
full_name: Tracol, Mathieu
id: 3F54FA38-F248-11E8-B48F-1D18A9856A87
last_name: Tracol
citation:
ama: Chatterjee K, Tracol M. Decidable Problems for Probabilistic Automata on
Infinite Words. IST Austria; 2011. doi:10.15479/AT:IST-2011-0004
apa: Chatterjee, K., & Tracol, M. (2011). Decidable problems for probabilistic
automata on infinite words. IST Austria. https://doi.org/10.15479/AT:IST-2011-0004
chicago: Chatterjee, Krishnendu, and Mathieu Tracol. Decidable Problems for Probabilistic
Automata on Infinite Words. IST Austria, 2011. https://doi.org/10.15479/AT:IST-2011-0004.
ieee: K. Chatterjee and M. Tracol, Decidable problems for probabilistic automata
on infinite words. IST Austria, 2011.
ista: Chatterjee K, Tracol M. 2011. Decidable problems for probabilistic automata
on infinite words, IST Austria, 30p.
mla: Chatterjee, Krishnendu, and Mathieu Tracol. Decidable Problems for Probabilistic
Automata on Infinite Words. IST Austria, 2011, doi:10.15479/AT:IST-2011-0004.
short: K. Chatterjee, M. Tracol, Decidable Problems for Probabilistic Automata on
Infinite Words, IST Austria, 2011.
date_created: 2018-12-12T11:39:01Z
date_published: 2011-04-11T00:00:00Z
date_updated: 2023-02-23T11:05:53Z
day: '11'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0004
file:
- access_level: open_access
checksum: f5a0f664fadc335990f5fcf138df19f1
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:23Z
date_updated: 2020-07-14T12:46:40Z
file_id: '5545'
file_name: IST-2011-004_IST-2011-0004.pdf
file_size: 570827
relation: main_file
file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '30'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '20'
related_material:
record:
- id: '2957'
relation: later_version
status: public
status: public
title: Decidable problems for probabilistic automata on infinite words
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5387'
abstract:
- lang: eng
text: We consider Markov Decision Processes (MDPs) with mean-payoff parity and energy
parity objectives. In system design, the parity objective is used to encode ω-regular
specifications, and the mean-payoff and energy objectives can be used to model
quantitative resource constraints. The energy condition re- quires that the resource
level never drops below 0, and the mean-payoff condi- tion requires that the limit-average
value of the resource consumption is within a threshold. While these two (energy
and mean-payoff) classical conditions are equivalent for two-player games, we
show that they differ for MDPs. We show that the problem of deciding whether a
state is almost-sure winning (i.e., winning with probability 1) in energy parity
MDPs is in NP ∩ coNP, while for mean- payoff parity MDPs, the problem is solvable
in polynomial time, improving a recent PSPACE bound.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Laurent
full_name: Doyen, Laurent
last_name: Doyen
citation:
ama: Chatterjee K, Doyen L. Energy and Mean-Payoff Parity Markov Decision Processes.
IST Austria; 2011. doi:10.15479/AT:IST-2011-0001
apa: Chatterjee, K., & Doyen, L. (2011). Energy and mean-payoff parity Markov
decision processes. IST Austria. https://doi.org/10.15479/AT:IST-2011-0001
chicago: Chatterjee, Krishnendu, and Laurent Doyen. Energy and Mean-Payoff Parity
Markov Decision Processes. IST Austria, 2011. https://doi.org/10.15479/AT:IST-2011-0001.
ieee: K. Chatterjee and L. Doyen, Energy and mean-payoff parity Markov decision
processes. IST Austria, 2011.
ista: Chatterjee K, Doyen L. 2011. Energy and mean-payoff parity Markov decision
processes, IST Austria, 20p.
mla: Chatterjee, Krishnendu, and Laurent Doyen. Energy and Mean-Payoff Parity
Markov Decision Processes. IST Austria, 2011, doi:10.15479/AT:IST-2011-0001.
short: K. Chatterjee, L. Doyen, Energy and Mean-Payoff Parity Markov Decision Processes,
IST Austria, 2011.
date_created: 2018-12-12T11:39:02Z
date_published: 2011-02-16T00:00:00Z
date_updated: 2023-02-23T11:23:11Z
day: '16'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0001
file:
- access_level: open_access
checksum: 824d6c70e6d3feb3e836b009e0b3cf73
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:52:57Z
date_updated: 2020-07-14T12:46:41Z
file_id: '5458'
file_name: IST-2011-0001_IST-2011-0001.pdf
file_size: 329976
relation: main_file
file_date_updated: 2020-07-14T12:46:41Z
has_accepted_license: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '20'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '23'
related_material:
record:
- id: '3345'
relation: later_version
status: public
status: public
title: Energy and mean-payoff parity Markov decision processes
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5388'
abstract:
- lang: eng
text: "We present an algorithmic method for the synthesis of concurrent programs
that are optimal with respect to quantitative performance measures. The input
consists of a sequential sketch, that is, a program that does not contain synchronization
constructs, and of a parametric performance model that assigns costs to actions
such as locking, context switching, and idling. The quantitative synthesis problem
is to automatically introduce synchronization constructs into the sequential sketch
so that both correctness is guaranteed and worst-case (or average-case) performance
is optimized. Correctness is formalized as race freedom or linearizability.\r\n\r\nWe
show that for worst-case performance, the problem can be modeled\r\nas a 2-player
graph game with quantitative (limit-average) objectives, and\r\nfor average-case
performance, as a 2 1/2 -player graph game (with probabilistic transitions). In
both cases, the optimal correct program is derived from an optimal strategy in
the corresponding quantitative game. We prove that the respective game problems
are computationally expensive (NP-complete), and present several techniques that
overcome the theoretical difficulty in cases of concurrent programs of practical
interest.\r\n\r\nWe have implemented a prototype tool and used it for the automatic
syn- thesis of programs that access a concurrent list. For certain parameter val-
ues, our method automatically synthesizes various classical synchronization schemes
for implementing a concurrent list, such as fine-grained locking or a lazy algorithm.
For other parameter values, a new, hybrid synchronization style is synthesized,
which uses both the lazy approach and coarse-grained locks (instead of standard
fine-grained locks). The trade-off occurs because while fine-grained locking tends
to decrease the cost that is due to waiting for locks, it increases cache size
requirements."
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Pavol
full_name: Cerny, Pavol
id: 4DCBEFFE-F248-11E8-B48F-1D18A9856A87
last_name: Cerny
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Arjun
full_name: Radhakrishna, Arjun
id: 3B51CAC4-F248-11E8-B48F-1D18A9856A87
last_name: Radhakrishna
- first_name: Rohit
full_name: Singh, Rohit
last_name: Singh
citation:
ama: Chatterjee K, Cerny P, Henzinger TA, Radhakrishna A, Singh R. Quantitative
Synthesis for Concurrent Programs. IST Austria; 2010. doi:10.15479/AT:IST-2010-0004
apa: Chatterjee, K., Cerny, P., Henzinger, T. A., Radhakrishna, A., & Singh,
R. (2010). Quantitative synthesis for concurrent programs. IST Austria.
https://doi.org/10.15479/AT:IST-2010-0004
chicago: Chatterjee, Krishnendu, Pavol Cerny, Thomas A Henzinger, Arjun Radhakrishna,
and Rohit Singh. Quantitative Synthesis for Concurrent Programs. IST Austria,
2010. https://doi.org/10.15479/AT:IST-2010-0004.
ieee: K. Chatterjee, P. Cerny, T. A. Henzinger, A. Radhakrishna, and R. Singh, Quantitative
synthesis for concurrent programs. IST Austria, 2010.
ista: Chatterjee K, Cerny P, Henzinger TA, Radhakrishna A, Singh R. 2010. Quantitative
synthesis for concurrent programs, IST Austria, 17p.
mla: Chatterjee, Krishnendu, et al. Quantitative Synthesis for Concurrent Programs.
IST Austria, 2010, doi:10.15479/AT:IST-2010-0004.
short: K. Chatterjee, P. Cerny, T.A. Henzinger, A. Radhakrishna, R. Singh, Quantitative
Synthesis for Concurrent Programs, IST Austria, 2010.
date_created: 2018-12-12T11:39:03Z
date_published: 2010-10-07T00:00:00Z
date_updated: 2023-02-23T11:24:08Z
day: '07'
ddc:
- '000'
- '005'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2010-0004
file:
- access_level: open_access
checksum: da38782d2388a6fa32109d10bb9bad67
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:53Z
date_updated: 2020-07-14T12:46:42Z
file_id: '5515'
file_name: IST-2010-0004_IST-2010-0004.pdf
file_size: 429101
relation: main_file
file_date_updated: 2020-07-14T12:46:42Z
has_accepted_license: '1'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: '17'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '24'
related_material:
record:
- id: '3366'
relation: later_version
status: public
status: public
title: Quantitative synthesis for concurrent programs
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2010'
...
---
_id: '5389'
abstract:
- lang: eng
text: Boolean notions of correctness are formalized by preorders on systems. Quantitative
measures of correctness can be formalized by real-valued distance functions between
systems, where the distance between implementation and specification provides
a measure of “fit” or “desirability.” We extend the simulation preorder to the
quantitative setting, by making each player of a simulation game pay a certain
price for her choices. We use the resulting games with quantitative objectives
to define three different simulation distances. The correctness distance measures
how much the specification must be changed in order to be satisfied by the implementation.
The coverage distance measures how much the im- plementation restricts the degrees
of freedom offered by the specification. The robustness distance measures how
much a system can deviate from the implementation description without violating
the specification. We consider these distances for safety as well as liveness
specifications. The distances can be computed in polynomial time for safety specifications,
and for liveness specifications given by weak fairness constraints. We show that
the distance functions satisfy the triangle inequality, that the distance between
two systems does not increase under parallel composition with a third system,
and that the distance between two systems can be bounded from above and below
by distances between abstractions of the two systems. These properties suggest
that our simulation distances provide an appropriate basis for a quantitative
theory of discrete systems. We also demonstrate how the robustness distance can
be used to measure how many transmission errors are tolerated by error correcting
codes.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Pavol
full_name: Cerny, Pavol
id: 4DCBEFFE-F248-11E8-B48F-1D18A9856A87
last_name: Cerny
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Arjun
full_name: Radhakrishna, Arjun
id: 3B51CAC4-F248-11E8-B48F-1D18A9856A87
last_name: Radhakrishna
citation:
ama: Cerny P, Henzinger TA, Radhakrishna A. Simulation Distances. IST Austria;
2010. doi:10.15479/AT:IST-2010-0003
apa: Cerny, P., Henzinger, T. A., & Radhakrishna, A. (2010). Simulation distances.
IST Austria. https://doi.org/10.15479/AT:IST-2010-0003
chicago: Cerny, Pavol, Thomas A Henzinger, and Arjun Radhakrishna. Simulation
Distances. IST Austria, 2010. https://doi.org/10.15479/AT:IST-2010-0003.
ieee: P. Cerny, T. A. Henzinger, and A. Radhakrishna, Simulation distances.
IST Austria, 2010.
ista: Cerny P, Henzinger TA, Radhakrishna A. 2010. Simulation distances, IST Austria,
24p.
mla: Cerny, Pavol, et al. Simulation Distances. IST Austria, 2010, doi:10.15479/AT:IST-2010-0003.
short: P. Cerny, T.A. Henzinger, A. Radhakrishna, Simulation Distances, IST Austria,
2010.
date_created: 2018-12-12T11:39:03Z
date_published: 2010-06-04T00:00:00Z
date_updated: 2023-02-23T12:09:16Z
day: '04'
ddc:
- '005'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2010-0003
file:
- access_level: open_access
checksum: 284ded99764e32a583a8ea83fcea254b
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:25Z
date_updated: 2020-07-14T12:46:42Z
file_id: '5547'
file_name: IST-2010-0003_IST-2010-0003.pdf
file_size: 367246
relation: main_file
file_date_updated: 2020-07-14T12:46:42Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '24'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '25'
related_material:
record:
- id: '3249'
relation: later_version
status: public
- id: '4393'
relation: later_version
status: public
status: public
title: Simulation distances
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2010'
...
---
_id: '5391'
abstract:
- lang: eng
text: Concurrent data structures with fine-grained synchronization are notoriously
difficult to implement correctly. The difficulty of reasoning about these implementations
does not stem from the number of variables or the program size, but rather from
the large number of possible interleavings. These implementations are therefore
prime candidates for model checking. We introduce an algorithm for verifying linearizability
of singly-linked heap-based concurrent data structures. We consider a model consisting
of an unbounded heap where each node consists an element from an unbounded data
domain, with a restricted set of operations for testing and updating pointers
and data elements. Our main result is that linearizability is decidable for programs
that invoke a fixed number of methods, possibly in parallel. This decidable fragment
covers many of the common implementation techniques — fine-grained locking, lazy
synchronization, and lock-free synchronization. We also show how the technique
can be used to verify optimistic implementations with the help of programmer annotations.
We developed a verification tool CoLT and evaluated it on a representative sample
of Java implementations of the concurrent set data structure. The tool verified
linearizability of a number of implementations, found a known error in a lock-free
imple- mentation and proved that the corrected version is linearizable.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Pavol
full_name: Cerny, Pavol
id: 4DCBEFFE-F248-11E8-B48F-1D18A9856A87
last_name: Cerny
- first_name: Arjun
full_name: Radhakrishna, Arjun
id: 3B51CAC4-F248-11E8-B48F-1D18A9856A87
last_name: Radhakrishna
- first_name: Damien
full_name: Zufferey, Damien
id: 4397AC76-F248-11E8-B48F-1D18A9856A87
last_name: Zufferey
orcid: 0000-0002-3197-8736
- first_name: Swarat
full_name: Chaudhuri, Swarat
last_name: Chaudhuri
- first_name: Rajeev
full_name: Alur, Rajeev
last_name: Alur
citation:
ama: Cerny P, Radhakrishna A, Zufferey D, Chaudhuri S, Alur R. Model Checking
of Linearizability of Concurrent List Implementations. IST Austria; 2010.
doi:10.15479/AT:IST-2010-0001
apa: Cerny, P., Radhakrishna, A., Zufferey, D., Chaudhuri, S., & Alur, R. (2010).
Model checking of linearizability of concurrent list implementations. IST
Austria. https://doi.org/10.15479/AT:IST-2010-0001
chicago: Cerny, Pavol, Arjun Radhakrishna, Damien Zufferey, Swarat Chaudhuri, and
Rajeev Alur. Model Checking of Linearizability of Concurrent List Implementations.
IST Austria, 2010. https://doi.org/10.15479/AT:IST-2010-0001.
ieee: P. Cerny, A. Radhakrishna, D. Zufferey, S. Chaudhuri, and R. Alur, Model
checking of linearizability of concurrent list implementations. IST Austria,
2010.
ista: Cerny P, Radhakrishna A, Zufferey D, Chaudhuri S, Alur R. 2010. Model checking
of linearizability of concurrent list implementations, IST Austria, 27p.
mla: Cerny, Pavol, et al. Model Checking of Linearizability of Concurrent List
Implementations. IST Austria, 2010, doi:10.15479/AT:IST-2010-0001.
short: P. Cerny, A. Radhakrishna, D. Zufferey, S. Chaudhuri, R. Alur, Model Checking
of Linearizability of Concurrent List Implementations, IST Austria, 2010.
date_created: 2018-12-12T11:39:04Z
date_published: 2010-04-19T00:00:00Z
date_updated: 2023-02-23T12:09:09Z
day: '19'
ddc:
- '004'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2010-0001
file:
- access_level: open_access
checksum: 986645caad7dd85a6a091488f6c646dc
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:44Z
date_updated: 2020-07-14T12:46:43Z
file_id: '5505'
file_name: IST-2010-0001_IST-2010-0001.pdf
file_size: 372286
relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '27'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '27'
related_material:
record:
- id: '4390'
relation: later_version
status: public
status: public
title: Model checking of linearizability of concurrent list implementations
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2010'
...
---
_id: '5390'
abstract:
- lang: eng
text: The class of ω regular languages provide a robust specification language in
verification. Every ω-regular condition can be decomposed into a safety part and
a liveness part. The liveness part ensures that something good happens “eventually.”
Two main strengths of the classical, infinite-limit formulation of liveness are
robustness (independence from the granularity of transitions) and simplicity (abstraction
of complicated time bounds). However, the classical liveness formulation suffers
from the drawback that the time until something good happens may be unbounded.
A stronger formulation of liveness, so-called finitary liveness, overcomes this
drawback, while still retaining robustness and simplicity. Finitary liveness requires
that there exists an unknown, fixed bound b such that something good happens within
b transitions. In this work we consider the finitary parity and Streett (fairness)
conditions. We present the topological, automata-theoretic and logical characterization
of finitary languages defined by finitary parity and Streett conditions. We (a)
show that the finitary parity and Streett languages are Σ2-complete; (b) present
a complete characterization of the expressive power of various classes of automata
with finitary and infinitary conditions (in particular we show that non-deterministic
finitary parity and Streett automata cannot be determinized to deterministic finitary
parity or Streett automata); and (c) show that the languages defined by non-deterministic
finitary parity automata exactly characterize the star-free fragment of ωB-regular
languages.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Nathanaël
full_name: Fijalkow, Nathanaël
last_name: Fijalkow
citation:
ama: Chatterjee K, Fijalkow N. Topological, Automata-Theoretic and Logical Characterization
of Finitary Languages. IST Austria; 2010. doi:10.15479/AT:IST-2010-0002
apa: Chatterjee, K., & Fijalkow, N. (2010). Topological, automata-theoretic
and logical characterization of finitary languages. IST Austria. https://doi.org/10.15479/AT:IST-2010-0002
chicago: Chatterjee, Krishnendu, and Nathanaël Fijalkow. Topological, Automata-Theoretic
and Logical Characterization of Finitary Languages. IST Austria, 2010. https://doi.org/10.15479/AT:IST-2010-0002.
ieee: K. Chatterjee and N. Fijalkow, Topological, automata-theoretic and logical
characterization of finitary languages. IST Austria, 2010.
ista: Chatterjee K, Fijalkow N. 2010. Topological, automata-theoretic and logical
characterization of finitary languages, IST Austria, 21p.
mla: Chatterjee, Krishnendu, and Nathanaël Fijalkow. Topological, Automata-Theoretic
and Logical Characterization of Finitary Languages. IST Austria, 2010, doi:10.15479/AT:IST-2010-0002.
short: K. Chatterjee, N. Fijalkow, Topological, Automata-Theoretic and Logical Characterization
of Finitary Languages, IST Austria, 2010.
date_created: 2018-12-12T11:39:03Z
date_published: 2010-06-04T00:00:00Z
date_updated: 2020-07-14T23:04:41Z
day: '04'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2010-0002
file:
- access_level: open_access
checksum: 283d3604d76dd4d5161585d4c8625fbe
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:10Z
date_updated: 2020-07-14T12:46:43Z
file_id: '5532'
file_name: IST-2010-0002_IST-2010-0002.pdf
file_size: 395662
relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '21'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '26'
status: public
title: Topological, automata-theoretic and logical characterization of finitary languages
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2010'
...
---
_id: '5393'
abstract:
- lang: eng
text: Gist is a tool that (a) solves the qualitative analysis problem of turn-based
probabilistic games with ω-regular objectives; and (b) synthesizes reasonable
environment assumptions for synthesis of unrealizable specifications. Our tool
provides efficient implementations of several reduction based techniques to solve
turn-based probabilistic games, and uses the analysis of turn-based probabilistic
games for synthesizing environment assumptions for unrealizable specifications.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Barbara
full_name: Jobstmann, Barbara
last_name: Jobstmann
- first_name: Arjun
full_name: Radhakrishna, Arjun
id: 3B51CAC4-F248-11E8-B48F-1D18A9856A87
last_name: Radhakrishna
citation:
ama: 'Chatterjee K, Henzinger TA, Jobstmann B, Radhakrishna A. Gist: A Solver
for Probabilistic Games. IST Austria; 2009. doi:10.15479/AT:IST-2009-0003'
apa: 'Chatterjee, K., Henzinger, T. A., Jobstmann, B., & Radhakrishna, A. (2009).
Gist: A solver for probabilistic games. IST Austria. https://doi.org/10.15479/AT:IST-2009-0003'
chicago: 'Chatterjee, Krishnendu, Thomas A Henzinger, Barbara Jobstmann, and Arjun
Radhakrishna. Gist: A Solver for Probabilistic Games. IST Austria, 2009.
https://doi.org/10.15479/AT:IST-2009-0003.'
ieee: 'K. Chatterjee, T. A. Henzinger, B. Jobstmann, and A. Radhakrishna, Gist:
A solver for probabilistic games. IST Austria, 2009.'
ista: 'Chatterjee K, Henzinger TA, Jobstmann B, Radhakrishna A. 2009. Gist: A solver
for probabilistic games, IST Austria, 12p.'
mla: 'Chatterjee, Krishnendu, et al. Gist: A Solver for Probabilistic Games.
IST Austria, 2009, doi:10.15479/AT:IST-2009-0003.'
short: 'K. Chatterjee, T.A. Henzinger, B. Jobstmann, A. Radhakrishna, Gist: A Solver
for Probabilistic Games, IST Austria, 2009.'
date_created: 2018-12-12T11:39:05Z
date_published: 2009-10-09T00:00:00Z
date_updated: 2023-02-23T12:09:01Z
day: '09'
ddc:
- '000'
- '005'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2009-0003
file:
- access_level: open_access
checksum: 49551ac552915b17593a14c993845274
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:52:58Z
date_updated: 2020-07-14T12:46:43Z
file_id: '5459'
file_name: IST-2009-0003_IST-2009-0003.pdf
file_size: 386866
relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: '12'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '29'
related_material:
record:
- id: '4388'
relation: later_version
status: public
status: public
title: 'Gist: A solver for probabilistic games'
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2009'
...
---
_id: '5394'
abstract:
- lang: eng
text: We consider two-player games played on graphs with request-response and finitary
Streett objectives. We show these games are PSPACE-hard, improving the previous
known NP-hardness. We also improve the lower bounds on memory required by the
winning strategies for the players.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Florian
full_name: Horn, Florian
id: 37327ACE-F248-11E8-B48F-1D18A9856A87
last_name: Horn
citation:
ama: Chatterjee K, Henzinger TA, Horn F. Improved Lower Bounds for Request-Response
and Finitary Streett Games. IST Austria; 2009. doi:10.15479/AT:IST-2009-0002
apa: Chatterjee, K., Henzinger, T. A., & Horn, F. (2009). Improved lower
bounds for request-response and finitary Streett games. IST Austria. https://doi.org/10.15479/AT:IST-2009-0002
chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Florian Horn. Improved
Lower Bounds for Request-Response and Finitary Streett Games. IST Austria,
2009. https://doi.org/10.15479/AT:IST-2009-0002.
ieee: K. Chatterjee, T. A. Henzinger, and F. Horn, Improved lower bounds for
request-response and finitary Streett games. IST Austria, 2009.
ista: Chatterjee K, Henzinger TA, Horn F. 2009. Improved lower bounds for request-response
and finitary Streett games, IST Austria, 11p.
mla: Chatterjee, Krishnendu, et al. Improved Lower Bounds for Request-Response
and Finitary Streett Games. IST Austria, 2009, doi:10.15479/AT:IST-2009-0002.
short: K. Chatterjee, T.A. Henzinger, F. Horn, Improved Lower Bounds for Request-Response
and Finitary Streett Games, IST Austria, 2009.
date_created: 2018-12-12T11:39:05Z
date_published: 2009-09-09T00:00:00Z
date_updated: 2020-07-14T23:07:47Z
day: '09'
ddc:
- '004'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2009-0002
file:
- access_level: open_access
checksum: 1c50a9723fbae1b2c46d18138968efb3
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:50Z
date_updated: 2020-07-14T12:46:43Z
file_id: '5511'
file_name: IST-2009-0002_IST-2009-0002.pdf
file_size: 238091
relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '11'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '30'
status: public
title: Improved lower bounds for request-response and finitary Streett games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2009'
...
---
_id: '5392'
abstract:
- lang: eng
text: We consider probabilistic automata on infinite words with acceptance defined
by safety, reachability, Büchi, coBüchi and limit-average conditions. We consider
quantitative and qualitative decision problems. We present extensions and adaptations
of proofs of [GO09] and present a precise characterization of the decidability
and undecidability frontier of the quantitative and qualitative decision problems.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
citation:
ama: 'Chatterjee K. Probabilistic Automata on Infinite Words: Decidability and
Undecidability Results. IST Austria; 2009. doi:10.15479/AT:IST-2009-0004'
apa: 'Chatterjee, K. (2009). Probabilistic automata on infinite words: Decidability
and undecidability results. IST Austria. https://doi.org/10.15479/AT:IST-2009-0004'
chicago: 'Chatterjee, Krishnendu. Probabilistic Automata on Infinite Words: Decidability
and Undecidability Results. IST Austria, 2009. https://doi.org/10.15479/AT:IST-2009-0004.'
ieee: 'K. Chatterjee, Probabilistic automata on infinite words: Decidability
and undecidability results. IST Austria, 2009.'
ista: 'Chatterjee K. 2009. Probabilistic automata on infinite words: Decidability
and undecidability results, IST Austria, 17p.'
mla: 'Chatterjee, Krishnendu. Probabilistic Automata on Infinite Words: Decidability
and Undecidability Results. IST Austria, 2009, doi:10.15479/AT:IST-2009-0004.'
short: 'K. Chatterjee, Probabilistic Automata on Infinite Words: Decidability and
Undecidability Results, IST Austria, 2009.'
date_created: 2018-12-12T11:39:04Z
date_published: 2009-11-02T00:00:00Z
date_updated: 2023-02-23T11:45:44Z
day: '02'
ddc:
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2009-0004
file:
- access_level: open_access
checksum: fb7563150231325b00b1718d956f687b
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:54:08Z
date_updated: 2020-07-14T12:46:43Z
file_id: '5530'
file_name: IST-2009-0004_IST-2009-0004.pdf
file_size: 311065
relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: '17'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '28'
related_material:
record:
- id: '3857'
relation: later_version
status: public
status: public
title: 'Probabilistic automata on infinite words: Decidability and undecidability
results'
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2009'
...
---
_id: '5395'
abstract:
- lang: eng
text: 'We study observation-based strategies for partially-observable Markov decision
processes (POMDPs) with omega-regular objectives. An observation-based strategy
relies on partial information about the history of a play, namely, on the past
sequence of observa- tions. We consider the qualitative analysis problem: given
a POMDP with an omega-regular objective, whether there is an observation-based
strategy to achieve the objective with probability 1 (almost-sure winning), or
with positive probability (positive winning). Our main results are twofold. First,
we present a complete picture of the computational complexity of the qualitative
analysis of POMDPs with parity objectives (a canonical form to express omega-regular
objectives) and its subclasses. Our contribution consists in establishing several
upper and lower bounds that were not known in literature. Second, we present optimal
bounds (matching upper and lower bounds) on the memory required by pure and randomized
observation-based strategies for the qualitative analysis of POMDPs with parity
objectives and its subclasses.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Laurent
full_name: Doyen, Laurent
last_name: Doyen
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
citation:
ama: Chatterjee K, Doyen L, Henzinger TA. Qualitative Analysis of Partially-Observable
Markov Decision Processes. IST Austria; 2009. doi:10.15479/AT:IST-2009-0001
apa: Chatterjee, K., Doyen, L., & Henzinger, T. A. (2009). Qualitative analysis
of partially-observable Markov decision processes. IST Austria. https://doi.org/10.15479/AT:IST-2009-0001
chicago: Chatterjee, Krishnendu, Laurent Doyen, and Thomas A Henzinger. Qualitative
Analysis of Partially-Observable Markov Decision Processes. IST Austria, 2009.
https://doi.org/10.15479/AT:IST-2009-0001.
ieee: K. Chatterjee, L. Doyen, and T. A. Henzinger, Qualitative analysis of partially-observable
Markov decision processes. IST Austria, 2009.
ista: Chatterjee K, Doyen L, Henzinger TA. 2009. Qualitative analysis of partially-observable
Markov decision processes, IST Austria, 20p.
mla: Chatterjee, Krishnendu, et al. Qualitative Analysis of Partially-Observable
Markov Decision Processes. IST Austria, 2009, doi:10.15479/AT:IST-2009-0001.
short: K. Chatterjee, L. Doyen, T.A. Henzinger, Qualitative Analysis of Partially-Observable
Markov Decision Processes, IST Austria, 2009.
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title: Qualitative analysis of partially-observable Markov decision processes
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...