---
_id: '14417'
abstract:
- lang: eng
  text: Entropic risk (ERisk) is an established risk measure in finance, quantifying
    risk by an exponential re-weighting of rewards. We study ERisk for the first time
    in the context of turn-based stochastic games with the total reward objective.
    This gives rise to an objective function that demands the control of systems in
    a risk-averse manner. We show that the resulting games are determined and, in
    particular, admit optimal memoryless deterministic strategies. This contrasts
    risk measures that previously have been considered in the special case of Markov
    decision processes and that require randomization and/or memory. We provide several
    results on the decidability and the computational complexity of the threshold
    problem, i.e. whether the optimal value of ERisk exceeds a given threshold. In
    the most general case, the problem is decidable subject to Shanuel’s conjecture.
    If all inputs are rational, the resulting threshold problem can be solved using
    algebraic numbers, leading to decidability via a polynomial-time reduction to
    the existential theory of the reals. Further restrictions on the encoding of the
    input allow the solution of the threshold problem in NP∩coNP. Finally, an approximation
    algorithm for the optimal value of ERisk is provided.
acknowledgement: "This work was partly funded by the ERC CoG 863818 (ForM-SMArt),
  the DFG Grant\r\n389792660 as part of TRR 248 (Foundations of Perspicuous Software
  Systems), the Cluster of\r\nExcellence EXC 2050/1 (CeTI, project ID 390696704, as
  part of Germany’s Excellence Strategy), and the DFG projects BA-1679/11-1 and BA-1679/12-1."
alternative_title:
- LIPIcs
article_number: '15'
article_processing_charge: Yes
arxiv: 1
author:
- first_name: Christel
  full_name: Baier, Christel
  last_name: Baier
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Tobias
  full_name: Meggendorfer, Tobias
  id: b21b0c15-30a2-11eb-80dc-f13ca25802e1
  last_name: Meggendorfer
  orcid: 0000-0002-1712-2165
- first_name: Jakob
  full_name: Piribauer, Jakob
  last_name: Piribauer
citation:
  ama: 'Baier C, Chatterjee K, Meggendorfer T, Piribauer J. Entropic risk for turn-based
    stochastic games. In: <i>48th International Symposium on Mathematical Foundations
    of Computer Science</i>. Vol 272. Schloss Dagstuhl - Leibniz-Zentrum für Informatik;
    2023. doi:<a href="https://doi.org/10.4230/LIPIcs.MFCS.2023.15">10.4230/LIPIcs.MFCS.2023.15</a>'
  apa: 'Baier, C., Chatterjee, K., Meggendorfer, T., &#38; Piribauer, J. (2023). Entropic
    risk for turn-based stochastic games. In <i>48th International Symposium on Mathematical
    Foundations of Computer Science</i> (Vol. 272). Bordeaux, France: Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.MFCS.2023.15">https://doi.org/10.4230/LIPIcs.MFCS.2023.15</a>'
  chicago: Baier, Christel, Krishnendu Chatterjee, Tobias Meggendorfer, and Jakob
    Piribauer. “Entropic Risk for Turn-Based Stochastic Games.” In <i>48th International
    Symposium on Mathematical Foundations of Computer Science</i>, Vol. 272. Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik, 2023. <a href="https://doi.org/10.4230/LIPIcs.MFCS.2023.15">https://doi.org/10.4230/LIPIcs.MFCS.2023.15</a>.
  ieee: C. Baier, K. Chatterjee, T. Meggendorfer, and J. Piribauer, “Entropic risk
    for turn-based stochastic games,” in <i>48th International Symposium on Mathematical
    Foundations of Computer Science</i>, Bordeaux, France, 2023, vol. 272.
  ista: 'Baier C, Chatterjee K, Meggendorfer T, Piribauer J. 2023. Entropic risk for
    turn-based stochastic games. 48th International Symposium on Mathematical Foundations
    of Computer Science. MFCS: Symposium on Mathematical Foundations of Computer Science,
    LIPIcs, vol. 272, 15.'
  mla: Baier, Christel, et al. “Entropic Risk for Turn-Based Stochastic Games.” <i>48th
    International Symposium on Mathematical Foundations of Computer Science</i>, vol.
    272, 15, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2023, doi:<a href="https://doi.org/10.4230/LIPIcs.MFCS.2023.15">10.4230/LIPIcs.MFCS.2023.15</a>.
  short: C. Baier, K. Chatterjee, T. Meggendorfer, J. Piribauer, in:, 48th International
    Symposium on Mathematical Foundations of Computer Science, Schloss Dagstuhl -
    Leibniz-Zentrum für Informatik, 2023.
conference:
  end_date: 2023-09-01
  location: Bordeaux, France
  name: 'MFCS: Symposium on Mathematical Foundations of Computer Science'
  start_date: 2023-08-28
date_created: 2023-10-09T09:21:05Z
date_published: 2023-08-21T00:00:00Z
date_updated: 2025-07-14T09:09:57Z
day: '21'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.4230/LIPIcs.MFCS.2023.15
ec_funded: 1
external_id:
  arxiv:
  - '2307.06611'
file:
- access_level: open_access
  checksum: 402281b17ed669bbf149d0fdf68ac201
  content_type: application/pdf
  creator: dernst
  date_created: 2023-10-09T09:19:11Z
  date_updated: 2023-10-09T09:19:11Z
  file_id: '14418'
  file_name: 2023_LIPIcsMFCS_Baier.pdf
  file_size: 826843
  relation: main_file
  success: 1
file_date_updated: 2023-10-09T09:19:11Z
has_accepted_license: '1'
intvolume: '       272'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '863818'
  name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
publication: 48th International Symposium on Mathematical Foundations of Computer
  Science
publication_identifier:
  eissn:
  - 1868-8969
  isbn:
  - '9783959772921'
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
quality_controlled: '1'
scopus_import: '1'
status: public
title: Entropic risk for turn-based stochastic games
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 272
year: '2023'
...
---
_id: '13120'
abstract:
- lang: eng
  text: 'We formalized general (i.e., type-0) grammars using the Lean 3 proof assistant.
    We defined basic notions of rewrite rules and of words derived by a grammar, and
    used grammars to show closure of the class of type-0 languages under four operations:
    union, reversal, concatenation, and the Kleene star. The literature mostly focuses
    on Turing machine arguments, which are possibly more difficult to formalize. For
    the Kleene star, we could not follow the literature and came up with our own grammar-based
    construction.'
acknowledgement: "Jasmin Blanchette: This research has received funding from the Netherlands
  Organization\r\nfor Scientific Research (NWO) under the Vidi program (project No.
  016.Vidi.189.037, Lean Forward).\r\n__\r\nWe thank Vladimir Kolmogorov for making
  this collaboration possible. We\r\nthank Václav Končický for discussing ideas about
  the Kleene star construction. We thank Patrick Johnson, Floris van Doorn, and Damiano
  Testa for their small yet very valuable contributions to our code. We thank Eric
  Wieser for simplifying one of our proofs. We thank Mark Summerfield for suggesting
  textual improvements. We thank the anonymous reviewers for very helpful comments.
  Finally, we thank the Lean community for helping us with various technical issues
  and answering many questions. "
alternative_title:
- LIPIcs
article_number: '15'
article_processing_charge: No
arxiv: 1
author:
- first_name: Martin
  full_name: Dvorak, Martin
  id: 40ED02A8-C8B4-11E9-A9C0-453BE6697425
  last_name: Dvorak
  orcid: 0000-0001-5293-214X
- first_name: Jasmin
  full_name: Blanchette, Jasmin
  last_name: Blanchette
citation:
  ama: 'Dvorak M, Blanchette J. Closure properties of general grammars - formally
    verified. In: <i>14th International Conference on Interactive Theorem Proving</i>.
    Vol 268. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2023. doi:<a href="https://doi.org/10.4230/LIPIcs.ITP.2023.15">10.4230/LIPIcs.ITP.2023.15</a>'
  apa: 'Dvorak, M., &#38; Blanchette, J. (2023). Closure properties of general grammars
    - formally verified. In <i>14th International Conference on Interactive Theorem
    Proving</i> (Vol. 268). Bialystok, Poland: Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik. <a href="https://doi.org/10.4230/LIPIcs.ITP.2023.15">https://doi.org/10.4230/LIPIcs.ITP.2023.15</a>'
  chicago: Dvorak, Martin, and Jasmin Blanchette. “Closure Properties of General Grammars
    - Formally Verified.” In <i>14th International Conference on Interactive Theorem
    Proving</i>, Vol. 268. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2023.
    <a href="https://doi.org/10.4230/LIPIcs.ITP.2023.15">https://doi.org/10.4230/LIPIcs.ITP.2023.15</a>.
  ieee: M. Dvorak and J. Blanchette, “Closure properties of general grammars - formally
    verified,” in <i>14th International Conference on Interactive Theorem Proving</i>,
    Bialystok, Poland, 2023, vol. 268.
  ista: 'Dvorak M, Blanchette J. 2023. Closure properties of general grammars - formally
    verified. 14th International Conference on Interactive Theorem Proving. ITP: International
    Conference on Interactive Theorem Proving, LIPIcs, vol. 268, 15.'
  mla: Dvorak, Martin, and Jasmin Blanchette. “Closure Properties of General Grammars
    - Formally Verified.” <i>14th International Conference on Interactive Theorem
    Proving</i>, vol. 268, 15, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2023, doi:<a href="https://doi.org/10.4230/LIPIcs.ITP.2023.15">10.4230/LIPIcs.ITP.2023.15</a>.
  short: M. Dvorak, J. Blanchette, in:, 14th International Conference on Interactive
    Theorem Proving, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2023.
conference:
  end_date: 2023-08-04
  location: Bialystok, Poland
  name: 'ITP: International Conference on Interactive Theorem Proving'
  start_date: 2023-07-31
date_created: 2023-06-05T07:29:05Z
date_published: 2023-07-27T00:00:00Z
date_updated: 2023-09-25T11:04:29Z
day: '27'
ddc:
- '000'
department:
- _id: GradSch
- _id: VlKo
doi: 10.4230/LIPIcs.ITP.2023.15
external_id:
  arxiv:
  - '2302.06420'
file:
- access_level: open_access
  checksum: 773a0197f05b67feaa6cb1e17ec3642d
  content_type: application/pdf
  creator: dernst
  date_created: 2023-08-07T11:55:43Z
  date_updated: 2023-08-07T11:55:43Z
  file_id: '13982'
  file_name: 2023_LIPIcS_Dvorak.pdf
  file_size: 715976
  relation: main_file
  success: 1
file_date_updated: 2023-08-07T11:55:43Z
has_accepted_license: '1'
intvolume: '       268'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: 14th International Conference on Interactive Theorem Proving
publication_identifier:
  eissn:
  - 1868-8969
  isbn:
  - '9783959772846'
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/madvorak/grammars/tree/publish
scopus_import: '1'
status: public
title: Closure properties of general grammars - formally verified
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 268
year: '2023'
...
---
_id: '13221'
abstract:
- lang: eng
  text: The safety-liveness dichotomy is a fundamental concept in formal languages
    which plays a key role in verification. Recently, this dichotomy has been lifted
    to quantitative properties, which are arbitrary functions from infinite words
    to partially-ordered domains. We look into harnessing the dichotomy for the specific
    classes of quantitative properties expressed by quantitative automata. These automata
    contain finitely many states and rational-valued transition weights, and their
    common value functions Inf, Sup, LimInf, LimSup, LimInfAvg, LimSupAvg, and DSum
    map infinite words into the totallyordered domain of real numbers. In this automata-theoretic
    setting, we establish a connection between quantitative safety and topological
    continuity and provide an alternative characterization of quantitative safety
    and liveness in terms of their boolean counterparts. For all common value functions,
    we show how the safety closure of a quantitative automaton can be constructed
    in PTime, and we provide PSpace-complete checks of whether a given quantitative
    automaton is safe or live, with the exception of LimInfAvg and LimSupAvg automata,
    for which the safety check is in ExpSpace. Moreover, for deterministic Sup, LimInf,
    and LimSup automata, we give PTime decompositions into safe and live automata.
    These decompositions enable the separation of techniques for safety and liveness
    verification for quantitative specifications.
acknowledgement: We thank Christof Löding for pointing us to some results on PSpace-hardess
  of universality problems and the anonymous reviewers for their helpful comments.
  This work was supported in part by the ERC-2020-AdG 101020093 and the Israel Science
  Foundation grant 2410/22.
alternative_title:
- LIPIcs
article_number: '17'
article_processing_charge: No
arxiv: 1
author:
- first_name: Udi
  full_name: Boker, Udi
  id: 31E297B6-F248-11E8-B48F-1D18A9856A87
  last_name: Boker
- 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: Nicolas Adrien
  full_name: Mazzocchi, Nicolas Adrien
  id: b26baa86-3308-11ec-87b0-8990f34baa85
  last_name: Mazzocchi
- first_name: Naci E
  full_name: Sarac, Naci E
  id: 8C6B42F8-C8E6-11E9-A03A-F2DCE5697425
  last_name: Sarac
citation:
  ama: 'Boker U, Henzinger TA, Mazzocchi NA, Sarac NE. Safety and liveness of quantitative
    automata. In: <i>34th International Conference on Concurrency Theory</i>. Vol
    279. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2023. doi:<a href="https://doi.org/10.4230/LIPIcs.CONCUR.2023.17">10.4230/LIPIcs.CONCUR.2023.17</a>'
  apa: 'Boker, U., Henzinger, T. A., Mazzocchi, N. A., &#38; Sarac, N. E. (2023).
    Safety and liveness of quantitative automata. In <i>34th International Conference
    on Concurrency Theory</i> (Vol. 279). Antwerp, Belgium: Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik. <a href="https://doi.org/10.4230/LIPIcs.CONCUR.2023.17">https://doi.org/10.4230/LIPIcs.CONCUR.2023.17</a>'
  chicago: Boker, Udi, Thomas A Henzinger, Nicolas Adrien Mazzocchi, and Naci E Sarac.
    “Safety and Liveness of Quantitative Automata.” In <i>34th International Conference
    on Concurrency Theory</i>, Vol. 279. Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2023. <a href="https://doi.org/10.4230/LIPIcs.CONCUR.2023.17">https://doi.org/10.4230/LIPIcs.CONCUR.2023.17</a>.
  ieee: U. Boker, T. A. Henzinger, N. A. Mazzocchi, and N. E. Sarac, “Safety and liveness
    of quantitative automata,” in <i>34th International Conference on Concurrency
    Theory</i>, Antwerp, Belgium, 2023, vol. 279.
  ista: 'Boker U, Henzinger TA, Mazzocchi NA, Sarac NE. 2023. Safety and liveness
    of quantitative automata. 34th International Conference on Concurrency Theory.
    CONCUR: Conference on Concurrency Theory, LIPIcs, vol. 279, 17.'
  mla: Boker, Udi, et al. “Safety and Liveness of Quantitative Automata.” <i>34th
    International Conference on Concurrency Theory</i>, vol. 279, 17, Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik, 2023, doi:<a href="https://doi.org/10.4230/LIPIcs.CONCUR.2023.17">10.4230/LIPIcs.CONCUR.2023.17</a>.
  short: U. Boker, T.A. Henzinger, N.A. Mazzocchi, N.E. Sarac, in:, 34th International
    Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2023.
conference:
  end_date: 2023-09-23
  location: Antwerp, Belgium
  name: 'CONCUR: Conference on Concurrency Theory'
  start_date: 2023-09-18
date_created: 2023-07-14T10:00:15Z
date_published: 2023-09-01T00:00:00Z
date_updated: 2023-10-09T07:14:03Z
day: '01'
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
doi: 10.4230/LIPIcs.CONCUR.2023.17
ec_funded: 1
external_id:
  arxiv:
  - '2307.06016'
file:
- access_level: open_access
  checksum: d40e57a04448ea5c77d7e1cfb9590a81
  content_type: application/pdf
  creator: esarac
  date_created: 2023-07-14T12:03:48Z
  date_updated: 2023-07-14T12:03:48Z
  file_id: '13224'
  file_name: CONCUR23.pdf
  file_size: 755529
  relation: main_file
  success: 1
file_date_updated: 2023-07-14T12:03:48Z
has_accepted_license: '1'
intvolume: '       279'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: 62781420-2b32-11ec-9570-8d9b63373d4d
  call_identifier: H2020
  grant_number: '101020093'
  name: Vigilant Algorithmic Monitoring of Software
publication: 34th International Conference on Concurrency Theory
publication_identifier:
  eissn:
  - 1868-8969
  isbn:
  - '9783959772990'
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
quality_controlled: '1'
status: public
title: Safety and liveness of quantitative automata
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 279
year: '2023'
...
---
_id: '13292'
abstract:
- lang: eng
  text: The operator precedence languages (OPLs) represent the largest known subclass
    of the context-free languages which enjoys all desirable closure and decidability
    properties. This includes the decidability of language inclusion, which is the
    ultimate verification problem. Operator precedence grammars, automata, and logics
    have been investigated and used, for example, to verify programs with arithmetic
    expressions and exceptions (both of which are deterministic pushdown but lie outside
    the scope of the visibly pushdown languages). In this paper, we complete the picture
    and give, for the first time, an algebraic characterization of the class of OPLs
    in the form of a syntactic congruence that has finitely many equivalence classes
    exactly for the operator precedence languages. This is a generalization of the
    celebrated Myhill-Nerode theorem for the regular languages to OPLs. As one of
    the consequences, we show that universality and language inclusion for nondeterministic
    operator precedence automata can be solved by an antichain algorithm. Antichain
    algorithms avoid determinization and complementation through an explicit subset
    construction, by leveraging a quasi-order on words, which allows the pruning of
    the search space for counterexample words without sacrificing completeness. Antichain
    algorithms can be implemented symbolically, and these implementations are today
    the best-performing algorithms in practice for the inclusion of finite automata.
    We give a generic construction of the quasi-order needed for antichain algorithms
    from a finite syntactic congruence. This yields the first antichain algorithm
    for OPLs, an algorithm that solves the ExpTime-hard language inclusion problem
    for OPLs in exponential time.
acknowledgement: "This work was supported in part by the ERC-2020-AdG 101020093.\r\nWe
  thank Pierre Ganty for early discussions and the anonymous reviewers for their helpful
  comments.\r\n"
alternative_title:
- LIPIcs
article_processing_charge: Yes
arxiv: 1
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: Pavol
  full_name: Kebis, Pavol
  last_name: Kebis
- first_name: Nicolas Adrien
  full_name: Mazzocchi, Nicolas Adrien
  id: b26baa86-3308-11ec-87b0-8990f34baa85
  last_name: Mazzocchi
- first_name: Naci E
  full_name: Sarac, Naci E
  id: 8C6B42F8-C8E6-11E9-A03A-F2DCE5697425
  last_name: Sarac
citation:
  ama: 'Henzinger TA, Kebis P, Mazzocchi NA, Sarac NE. Regular methods for operator
    precedence languages. In: <i>50th International Colloquium on Automata, Languages,
    and Programming</i>. Vol 261. Schloss Dagstuhl - Leibniz-Zentrum für Informatik;
    2023:129:1--129:20. doi:<a href="https://doi.org/10.4230/LIPIcs.ICALP.2023.129">10.4230/LIPIcs.ICALP.2023.129</a>'
  apa: 'Henzinger, T. A., Kebis, P., Mazzocchi, N. A., &#38; Sarac, N. E. (2023).
    Regular methods for operator precedence languages. In <i>50th International Colloquium
    on Automata, Languages, and Programming</i> (Vol. 261, p. 129:1--129:20). Paderborn,
    Germany: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.ICALP.2023.129">https://doi.org/10.4230/LIPIcs.ICALP.2023.129</a>'
  chicago: Henzinger, Thomas A, Pavol Kebis, Nicolas Adrien Mazzocchi, and Naci E
    Sarac. “Regular Methods for Operator Precedence Languages.” In <i>50th International
    Colloquium on Automata, Languages, and Programming</i>, 261:129:1--129:20. Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik, 2023. <a href="https://doi.org/10.4230/LIPIcs.ICALP.2023.129">https://doi.org/10.4230/LIPIcs.ICALP.2023.129</a>.
  ieee: T. A. Henzinger, P. Kebis, N. A. Mazzocchi, and N. E. Sarac, “Regular methods
    for operator precedence languages,” in <i>50th International Colloquium on Automata,
    Languages, and Programming</i>, Paderborn, Germany, 2023, vol. 261, p. 129:1--129:20.
  ista: 'Henzinger TA, Kebis P, Mazzocchi NA, Sarac NE. 2023. Regular methods for
    operator precedence languages. 50th International Colloquium on Automata, Languages,
    and Programming. ICALP: International Colloquium on Automata, Languages, and Programming,
    LIPIcs, vol. 261, 129:1--129:20.'
  mla: Henzinger, Thomas A., et al. “Regular Methods for Operator Precedence Languages.”
    <i>50th International Colloquium on Automata, Languages, and Programming</i>,
    vol. 261, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2023, p. 129:1--129:20,
    doi:<a href="https://doi.org/10.4230/LIPIcs.ICALP.2023.129">10.4230/LIPIcs.ICALP.2023.129</a>.
  short: T.A. Henzinger, P. Kebis, N.A. Mazzocchi, N.E. Sarac, in:, 50th International
    Colloquium on Automata, Languages, and Programming, Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, 2023, p. 129:1--129:20.
conference:
  end_date: 2023-07-14
  location: Paderborn, Germany
  name: 'ICALP: International Colloquium on Automata, Languages, and Programming'
  start_date: 2023-07-10
date_created: 2023-07-24T15:11:41Z
date_published: 2023-07-05T00:00:00Z
date_updated: 2023-07-31T08:38:38Z
day: '05'
ddc:
- '000'
department:
- _id: GradSch
- _id: ToHe
doi: 10.4230/LIPIcs.ICALP.2023.129
ec_funded: 1
external_id:
  arxiv:
  - '2305.03447'
file:
- access_level: open_access
  checksum: 5d4c8932ef3450615a53b9bb15d92eb2
  content_type: application/pdf
  creator: esarac
  date_created: 2023-07-24T15:11:05Z
  date_updated: 2023-07-24T15:11:05Z
  file_id: '13293'
  file_name: icalp23.pdf
  file_size: 859379
  relation: main_file
  success: 1
file_date_updated: 2023-07-24T15:11:05Z
has_accepted_license: '1'
intvolume: '       261'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 129:1--129:20
project:
- _id: 62781420-2b32-11ec-9570-8d9b63373d4d
  call_identifier: H2020
  grant_number: '101020093'
  name: Vigilant Algorithmic Monitoring of Software
publication: 50th International Colloquium on Automata, Languages, and Programming
publication_identifier:
  eissn:
  - 1868-8969
  isbn:
  - '9783959772785'
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
quality_controlled: '1'
status: public
title: Regular methods for operator precedence languages
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 261
year: '2023'
...
---
_id: '11808'
abstract:
- lang: eng
  text: In recent years, significant advances have been made in the design and analysis
    of fully dynamic algorithms. However, these theoretical results have received
    very little attention from the practical perspective. Few of the algorithms are
    implemented and tested on real datasets, and their practical potential is far
    from understood. Here, we present a quick reference guide to recent engineering
    and theory results in the area of fully dynamic graph algorithms.
alternative_title:
- LIPIcs
article_number: '1'
article_processing_charge: No
arxiv: 1
author:
- first_name: Kathrin
  full_name: Hanauer, Kathrin
  last_name: Hanauer
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
- first_name: Christian
  full_name: Schulz, Christian
  last_name: Schulz
citation:
  ama: 'Hanauer K, Henzinger MH, Schulz C. Recent advances in fully dynamic graph
    algorithms. In: <i>1st Symposium on Algorithmic Foundations of Dynamic Networks</i>.
    Vol 221. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2022. doi:<a href="https://doi.org/10.4230/LIPIcs.SAND.2022.1">10.4230/LIPIcs.SAND.2022.1</a>'
  apa: 'Hanauer, K., Henzinger, M. H., &#38; Schulz, C. (2022). Recent advances in
    fully dynamic graph algorithms. In <i>1st Symposium on Algorithmic Foundations
    of Dynamic Networks</i> (Vol. 221). Virtual: Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik. <a href="https://doi.org/10.4230/LIPIcs.SAND.2022.1">https://doi.org/10.4230/LIPIcs.SAND.2022.1</a>'
  chicago: Hanauer, Kathrin, Monika H Henzinger, and Christian Schulz. “Recent Advances
    in Fully Dynamic Graph Algorithms.” In <i>1st Symposium on Algorithmic Foundations
    of Dynamic Networks</i>, Vol. 221. Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2022. <a href="https://doi.org/10.4230/LIPIcs.SAND.2022.1">https://doi.org/10.4230/LIPIcs.SAND.2022.1</a>.
  ieee: K. Hanauer, M. H. Henzinger, and C. Schulz, “Recent advances in fully dynamic
    graph algorithms,” in <i>1st Symposium on Algorithmic Foundations of Dynamic Networks</i>,
    Virtual, 2022, vol. 221.
  ista: 'Hanauer K, Henzinger MH, Schulz C. 2022. Recent advances in fully dynamic
    graph algorithms. 1st Symposium on Algorithmic Foundations of Dynamic Networks.
    SAND: Symposium on Algorithmic Foundations of Dynamic Networks, LIPIcs, vol. 221,
    1.'
  mla: Hanauer, Kathrin, et al. “Recent Advances in Fully Dynamic Graph Algorithms.”
    <i>1st Symposium on Algorithmic Foundations of Dynamic Networks</i>, vol. 221,
    1, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022, doi:<a href="https://doi.org/10.4230/LIPIcs.SAND.2022.1">10.4230/LIPIcs.SAND.2022.1</a>.
  short: K. Hanauer, M.H. Henzinger, C. Schulz, in:, 1st Symposium on Algorithmic
    Foundations of Dynamic Networks, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2022.
conference:
  end_date: 2022-03-30
  location: Virtual
  name: 'SAND: Symposium on Algorithmic Foundations of Dynamic Networks'
  start_date: 2022-03-28
date_created: 2022-08-11T14:35:52Z
date_published: 2022-04-29T00:00:00Z
date_updated: 2023-02-14T08:14:41Z
day: '29'
doi: 10.4230/LIPIcs.SAND.2022.1
extern: '1'
external_id:
  arxiv:
  - '2102.11169'
intvolume: '       221'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.4230/LIPIcs.SAND.2022.1
month: '04'
oa: 1
oa_version: Published Version
publication: 1st Symposium on Algorithmic Foundations of Dynamic Networks
publication_identifier:
  eissn:
  - 1868-8969
  isbn:
  - '9783959772242'
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
quality_controlled: '1'
scopus_import: '1'
status: public
title: Recent advances in fully dynamic graph algorithms
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 221
year: '2022'
...
---
_id: '12182'
abstract:
- lang: eng
  text: 'Online algorithms make decisions based on past inputs, with the goal of being
    competitive against an algorithm that sees also future inputs. In this work, we
    introduce time-local online algorithms; these are online algorithms in which the
    output at any given time is a function of only T latest inputs. Our main observation
    is that time-local online algorithms are closely connected to local distributed
    graph algorithms: distributed algorithms make decisions based on the local information
    in the spatial dimension, while time-local online algorithms make decisions based
    on the local information in the temporal dimension. We formalize this connection,
    and show how we can directly use the tools developed to study distributed approximability
    of graph optimization problems to prove upper and lower bounds on the competitive
    ratio achieved with time-local online algorithms. Moreover, we show how to use
    computational techniques to synthesize optimal time-local algorithms.'
acknowledgement: "This research has received funding from the German Research Foundation
  (DFG), grant\r\n470029389 (FlexNets), 2021-2024, and the Marie Skłodowska-Curie
  grant agreement No. 840605."
article_number: '52'
article_processing_charge: No
author:
- first_name: Maciej
  full_name: Pacut, Maciej
  last_name: Pacut
- first_name: Mahmoud
  full_name: Parham, Mahmoud
  last_name: Parham
- first_name: Joel
  full_name: Rybicki, Joel
  id: 334EFD2E-F248-11E8-B48F-1D18A9856A87
  last_name: Rybicki
  orcid: 0000-0002-6432-6646
- first_name: Stefan
  full_name: Schmid, Stefan
  last_name: Schmid
- first_name: Jukka
  full_name: Suomela, Jukka
  last_name: Suomela
- first_name: Aleksandr
  full_name: Tereshchenko, Aleksandr
  last_name: Tereshchenko
citation:
  ama: 'Pacut M, Parham M, Rybicki J, Schmid S, Suomela J, Tereshchenko A. Brief announcement:
    Temporal locality in online algorithms. In: <i>36th International Symposium on
    Distributed Computing</i>. Vol 246. Schloss Dagstuhl - Leibniz-Zentrum für Informatik;
    2022. doi:<a href="https://doi.org/10.4230/LIPIcs.DISC.2022.52">10.4230/LIPIcs.DISC.2022.52</a>'
  apa: 'Pacut, M., Parham, M., Rybicki, J., Schmid, S., Suomela, J., &#38; Tereshchenko,
    A. (2022). Brief announcement: Temporal locality in online algorithms. In <i>36th
    International Symposium on Distributed Computing</i> (Vol. 246). Augusta, GA,
    United States: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.DISC.2022.52">https://doi.org/10.4230/LIPIcs.DISC.2022.52</a>'
  chicago: 'Pacut, Maciej, Mahmoud Parham, Joel Rybicki, Stefan Schmid, Jukka Suomela,
    and Aleksandr Tereshchenko. “Brief Announcement: Temporal Locality in Online Algorithms.”
    In <i>36th International Symposium on Distributed Computing</i>, Vol. 246. Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik, 2022. <a href="https://doi.org/10.4230/LIPIcs.DISC.2022.52">https://doi.org/10.4230/LIPIcs.DISC.2022.52</a>.'
  ieee: 'M. Pacut, M. Parham, J. Rybicki, S. Schmid, J. Suomela, and A. Tereshchenko,
    “Brief announcement: Temporal locality in online algorithms,” in <i>36th International
    Symposium on Distributed Computing</i>, Augusta, GA, United States, 2022, vol.
    246.'
  ista: 'Pacut M, Parham M, Rybicki J, Schmid S, Suomela J, Tereshchenko A. 2022.
    Brief announcement: Temporal locality in online algorithms. 36th International
    Symposium on Distributed Computing. DISC: Symposium on Distributed Computing vol.
    246, 52.'
  mla: 'Pacut, Maciej, et al. “Brief Announcement: Temporal Locality in Online Algorithms.”
    <i>36th International Symposium on Distributed Computing</i>, vol. 246, 52, Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik, 2022, doi:<a href="https://doi.org/10.4230/LIPIcs.DISC.2022.52">10.4230/LIPIcs.DISC.2022.52</a>.'
  short: M. Pacut, M. Parham, J. Rybicki, S. Schmid, J. Suomela, A. Tereshchenko,
    in:, 36th International Symposium on Distributed Computing, Schloss Dagstuhl -
    Leibniz-Zentrum für Informatik, 2022.
conference:
  end_date: 2022-10-27
  location: Augusta, GA, United States
  name: 'DISC: Symposium on Distributed Computing'
  start_date: 2022-10-25
date_created: 2023-01-13T11:06:28Z
date_published: 2022-10-17T00:00:00Z
date_updated: 2023-01-27T06:59:29Z
day: '17'
ddc:
- '000'
department:
- _id: DaAl
doi: 10.4230/LIPIcs.DISC.2022.52
ec_funded: 1
file:
- access_level: open_access
  checksum: 11bbb56f68a00f2cf6bcce6cc7f5c5f9
  content_type: application/pdf
  creator: dernst
  date_created: 2023-01-27T06:58:02Z
  date_updated: 2023-01-27T06:58:02Z
  file_id: '12409'
  file_name: 2022_LIPICs_Pacut.pdf
  file_size: 524804
  relation: main_file
  success: 1
file_date_updated: 2023-01-27T06:58:02Z
has_accepted_license: '1'
intvolume: '       246'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 26A5D39A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '840605'
  name: Coordination in constrained and natural distributed systems
publication: 36th International Symposium on Distributed Computing
publication_identifier:
  eisbn:
  - '9783959772556'
  eissn:
  - 1868-8969
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Brief announcement: Temporal locality in online algorithms'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 246
year: '2022'
...
