---
_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.
date_created: 2018-12-12T11:39:05Z
date_published: 2009-09-09T00:00:00Z
date_updated: 2023-02-23T11:45:39Z
day: '09'
ddc:
- '005'
department:
- _id: KrCh
- _id: ToHe
doi: 10.15479/AT:IST-2009-0001
file:
- access_level: open_access
checksum: 04d9cc065cc19598a4e8631c47f1a562
content_type: application/pdf
creator: system
date_created: 2018-12-12T11:53:25Z
date_updated: 2020-07-14T12:46:43Z
file_id: '5486'
file_name: IST-2009-0001_IST-2009-0001.pdf
file_size: 342088
relation: main_file
file_date_updated: 2020-07-14T12:46:43Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '20'
publication_identifier:
issn:
- 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '31'
related_material:
record:
- id: '3855'
relation: later_version
status: public
status: public
title: Qualitative analysis of partially-observable Markov decision processes
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2009'
...