---
_id: '14820'
abstract:
- lang: eng
  text: "We consider a natural problem dealing with weighted packet selection across
    a rechargeable link, which e.g., finds applications in cryptocurrency networks.
    The capacity of a link (u, v) is determined by how many nodes u and v allocate
    for this link. Specifically, the input is a finite ordered sequence of packets
    that arrive in both directions along a link. Given (u, v) and a packet of weight
    x going from u to v, node u can either accept or reject the packet. If u accepts
    the packet, the capacity on link (u, v) decreases by x. Correspondingly, v's capacity
    on \r\n increases by x. If a node rejects the packet, this will entail a cost
    affinely linear in the weight of the packet. A link is “rechargeable” in the sense
    that the total capacity of the link has to remain constant, but the allocation
    of capacity at the ends of the link can depend arbitrarily on the nodes' decisions.
    The goal is to minimise the sum of the capacity injected into the link and the
    cost of rejecting packets. We show that the problem is NP-hard, but can be approximated
    efficiently with a ratio of (1+E) . (1+3)  for some arbitrary E>0."
acknowledgement: We thank Mahsa Bastankhah and Mohammad Ali Maddah-Ali for fruitful
  discussions about different variants of the problem. This work is supported by the
  European Research Council (ERC) Consolidator Project 864228 (AdjustNet), 2020-2025,
  the ERC CoG 863818 (ForM-SMArt), and the German Research Foundation (DFG) grant
  470029389 (FlexNets), 2021-2024.
article_number: '114353'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Stefan
  full_name: Schmid, Stefan
  last_name: Schmid
- first_name: Jakub
  full_name: Svoboda, Jakub
  id: 130759D2-D7DD-11E9-87D2-DE0DE6697425
  last_name: Svoboda
  orcid: 0000-0002-1419-3267
- first_name: Michelle X
  full_name: Yeo, Michelle X
  id: 2D82B818-F248-11E8-B48F-1D18A9856A87
  last_name: Yeo
  orcid: 0009-0001-3676-4809
citation:
  ama: 'Schmid S, Svoboda J, Yeo MX. Weighted packet selection for rechargeable links
    in cryptocurrency networks: Complexity and approximation. <i>Theoretical Computer
    Science</i>. 2024;989. doi:<a href="https://doi.org/10.1016/j.tcs.2023.114353">10.1016/j.tcs.2023.114353</a>'
  apa: 'Schmid, S., Svoboda, J., &#38; Yeo, M. X. (2024). Weighted packet selection
    for rechargeable links in cryptocurrency networks: Complexity and approximation.
    <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/j.tcs.2023.114353">https://doi.org/10.1016/j.tcs.2023.114353</a>'
  chicago: 'Schmid, Stefan, Jakub Svoboda, and Michelle X Yeo. “Weighted Packet Selection
    for Rechargeable Links in Cryptocurrency Networks: Complexity and Approximation.”
    <i>Theoretical Computer Science</i>. Elsevier, 2024. <a href="https://doi.org/10.1016/j.tcs.2023.114353">https://doi.org/10.1016/j.tcs.2023.114353</a>.'
  ieee: 'S. Schmid, J. Svoboda, and M. X. Yeo, “Weighted packet selection for rechargeable
    links in cryptocurrency networks: Complexity and approximation,” <i>Theoretical
    Computer Science</i>, vol. 989. Elsevier, 2024.'
  ista: 'Schmid S, Svoboda J, Yeo MX. 2024. Weighted packet selection for rechargeable
    links in cryptocurrency networks: Complexity and approximation. Theoretical Computer
    Science. 989, 114353.'
  mla: 'Schmid, Stefan, et al. “Weighted Packet Selection for Rechargeable Links in
    Cryptocurrency Networks: Complexity and Approximation.” <i>Theoretical Computer
    Science</i>, vol. 989, 114353, Elsevier, 2024, doi:<a href="https://doi.org/10.1016/j.tcs.2023.114353">10.1016/j.tcs.2023.114353</a>.'
  short: S. Schmid, J. Svoboda, M.X. Yeo, Theoretical Computer Science 989 (2024).
corr_author: '1'
date_created: 2024-01-16T13:40:41Z
date_published: 2024-03-21T00:00:00Z
date_updated: 2025-12-02T14:02:37Z
day: '21'
ddc:
- '000'
department:
- _id: KrCh
- _id: KrPi
doi: 10.1016/j.tcs.2023.114353
ec_funded: 1
external_id:
  isi:
  - '001168211400001'
file:
- access_level: open_access
  checksum: efd5b7e738bf845312ba53889a3e13e4
  content_type: application/pdf
  creator: dernst
  date_created: 2024-07-16T12:02:25Z
  date_updated: 2024-07-16T12:02:25Z
  file_id: '17263'
  file_name: 2024_TheorComputerScience_Schmid.pdf
  file_size: 603570
  relation: main_file
  success: 1
file_date_updated: 2024-07-16T12:02:25Z
has_accepted_license: '1'
intvolume: '       989'
isi: 1
keyword:
- General Computer Science
- Theoretical Computer Science
language:
- iso: eng
month: '03'
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: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  record:
  - id: '19985'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: 'Weighted packet selection for rechargeable links in cryptocurrency networks:
  Complexity and approximation'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 989
year: '2024'
...
---
_id: '14362'
abstract:
- lang: eng
  text: "Motivated by recent applications to entropy theory in dynamical systems,
    we generalise notions introduced by Matthews and define weakly weighted and componentwise
    weakly weighted (generalised) quasi-metrics. We then systematise and extend to
    full generality the correspondences between these objects and other structures
    arising in theoretical computer science and dynamics. In particular, we study
    the correspondences with weak partial metrics and, if the underlying space is
    a semilattice, with invariant (generalised) quasi-metrics satisfying the descending
    path condition, and with strictly monotone semi(-co-)valuations.\r\nWe conclude
    discussing, for endomorphisms of generalised quasi-metric semilattices, a generalisation
    of both the known intrinsic semilattice entropy and the semigroup entropy."
article_number: '114129'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Ilaria
  full_name: Castellano, Ilaria
  last_name: Castellano
- first_name: Anna
  full_name: Giordano Bruno, Anna
  last_name: Giordano Bruno
- first_name: Nicolò
  full_name: Zava, Nicolò
  id: c8b3499c-7a77-11eb-b046-aa368cbbf2ad
  last_name: Zava
  orcid: 0000-0001-8686-1888
citation:
  ama: Castellano I, Giordano Bruno A, Zava N. Weakly weighted generalised quasi-metric
    spaces and semilattices. <i>Theoretical Computer Science</i>. 2023;977. doi:<a
    href="https://doi.org/10.1016/j.tcs.2023.114129">10.1016/j.tcs.2023.114129</a>
  apa: Castellano, I., Giordano Bruno, A., &#38; Zava, N. (2023). Weakly weighted
    generalised quasi-metric spaces and semilattices. <i>Theoretical Computer Science</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.tcs.2023.114129">https://doi.org/10.1016/j.tcs.2023.114129</a>
  chicago: Castellano, Ilaria, Anna Giordano Bruno, and Nicolò Zava. “Weakly Weighted
    Generalised Quasi-Metric Spaces and Semilattices.” <i>Theoretical Computer Science</i>.
    Elsevier, 2023. <a href="https://doi.org/10.1016/j.tcs.2023.114129">https://doi.org/10.1016/j.tcs.2023.114129</a>.
  ieee: I. Castellano, A. Giordano Bruno, and N. Zava, “Weakly weighted generalised
    quasi-metric spaces and semilattices,” <i>Theoretical Computer Science</i>, vol.
    977. Elsevier, 2023.
  ista: Castellano I, Giordano Bruno A, Zava N. 2023. Weakly weighted generalised
    quasi-metric spaces and semilattices. Theoretical Computer Science. 977, 114129.
  mla: Castellano, Ilaria, et al. “Weakly Weighted Generalised Quasi-Metric Spaces
    and Semilattices.” <i>Theoretical Computer Science</i>, vol. 977, 114129, Elsevier,
    2023, doi:<a href="https://doi.org/10.1016/j.tcs.2023.114129">10.1016/j.tcs.2023.114129</a>.
  short: I. Castellano, A. Giordano Bruno, N. Zava, Theoretical Computer Science 977
    (2023).
corr_author: '1'
date_created: 2023-09-24T22:01:11Z
date_published: 2023-10-25T00:00:00Z
date_updated: 2024-10-09T21:07:00Z
day: '25'
department:
- _id: HeEd
doi: 10.1016/j.tcs.2023.114129
external_id:
  arxiv:
  - '2212.08424'
  isi:
  - '001076934000001'
intvolume: '       977'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: 'https://doi.org/10.48550/arXiv.2212.08424 '
month: '10'
oa: 1
oa_version: Preprint
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Weakly weighted generalised quasi-metric spaces and semilattices
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 977
year: '2023'
...
---
_id: '12566'
abstract:
- lang: eng
  text: "Approximate agreement is one of the few variants of consensus that can be
    solved in a wait-free manner in asynchronous systems where processes communicate
    by reading and writing to shared memory. In this work, we consider a natural generalisation
    of approximate agreement on arbitrary undirected connected graphs. Each process
    is given a node of the graph as input and, if non-faulty, must output a node such
    that\r\n– all the outputs are within distance 1 of one another, and\r\n– each
    output value lies on a shortest path between two input values.\r\nFrom prior work,
    it is known that there is no wait-free algorithm among  processes for this problem
    on any cycle of length , by reduction from 2-set agreement (Castañeda et al.,
    2018).\r\n\r\nIn this work, we investigate the solvability of this task on general
    graphs. We give a new, direct proof of the impossibility of approximate agreement
    on cycles of length , via a generalisation of Sperner's Lemma to convex polygons.
    We also extend the reduction from 2-set agreement to a larger class of graphs,
    showing that approximate agreement on these graphs is unsolvable. On the positive
    side, we present a wait-free algorithm for a different class of graphs, which
    properly contains the class of chordal graphs."
acknowledgement: This project has received funding from the European Research Council
  (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (grant agreement No. 805223 ScaleML) and under the Marie Skłodowska-Curie grant
  agreement No. 840605 and from the Natural Sciences and Engineering Research Council
  of Canada grant RGPIN-2020-04178. Part of this work was done while Faith Ellen was
  visiting IST Austria.
article_number: '113733'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: Faith
  full_name: Ellen, Faith
  last_name: Ellen
- first_name: Joel
  full_name: Rybicki, Joel
  id: 334EFD2E-F248-11E8-B48F-1D18A9856A87
  last_name: Rybicki
  orcid: 0000-0002-6432-6646
citation:
  ama: Alistarh D-A, Ellen F, Rybicki J. Wait-free approximate agreement on graphs.
    <i>Theoretical Computer Science</i>. 2023;948(2). doi:<a href="https://doi.org/10.1016/j.tcs.2023.113733">10.1016/j.tcs.2023.113733</a>
  apa: Alistarh, D.-A., Ellen, F., &#38; Rybicki, J. (2023). Wait-free approximate
    agreement on graphs. <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/j.tcs.2023.113733">https://doi.org/10.1016/j.tcs.2023.113733</a>
  chicago: Alistarh, Dan-Adrian, Faith Ellen, and Joel Rybicki. “Wait-Free Approximate
    Agreement on Graphs.” <i>Theoretical Computer Science</i>. Elsevier, 2023. <a
    href="https://doi.org/10.1016/j.tcs.2023.113733">https://doi.org/10.1016/j.tcs.2023.113733</a>.
  ieee: D.-A. Alistarh, F. Ellen, and J. Rybicki, “Wait-free approximate agreement
    on graphs,” <i>Theoretical Computer Science</i>, vol. 948, no. 2. Elsevier, 2023.
  ista: Alistarh D-A, Ellen F, Rybicki J. 2023. Wait-free approximate agreement on
    graphs. Theoretical Computer Science. 948(2), 113733.
  mla: Alistarh, Dan-Adrian, et al. “Wait-Free Approximate Agreement on Graphs.” <i>Theoretical
    Computer Science</i>, vol. 948, no. 2, 113733, Elsevier, 2023, doi:<a href="https://doi.org/10.1016/j.tcs.2023.113733">10.1016/j.tcs.2023.113733</a>.
  short: D.-A. Alistarh, F. Ellen, J. Rybicki, Theoretical Computer Science 948 (2023).
corr_author: '1'
date_created: 2023-02-19T23:00:55Z
date_published: 2023-02-28T00:00:00Z
date_updated: 2025-04-14T07:49:16Z
day: '28'
ddc:
- '000'
department:
- _id: DaAl
doi: 10.1016/j.tcs.2023.113733
ec_funded: 1
external_id:
  isi:
  - '000934262700001'
file:
- access_level: open_access
  checksum: b27c5290f2f1500c403494364ee39c9f
  content_type: application/pdf
  creator: dernst
  date_created: 2023-02-20T07:30:20Z
  date_updated: 2023-02-20T07:30:20Z
  file_id: '12570'
  file_name: 2023_TheoreticalCompScience_Alistarh.pdf
  file_size: 602333
  relation: main_file
  success: 1
file_date_updated: 2023-02-20T07:30:20Z
has_accepted_license: '1'
intvolume: '       948'
isi: 1
issue: '2'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
project:
- _id: 268A44D6-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '805223'
  name: Elastic Coordination for Scalable Machine Learning
- _id: 26A5D39A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '840605'
  name: Coordination in constrained and natural distributed systems
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Wait-free approximate agreement on graphs
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 948
year: '2023'
...
---
_id: '9647'
abstract:
- lang: eng
  text: 'Gene expression is regulated by the set of transcription factors (TFs) that
    bind to the promoter. The ensuing regulating function is often represented as
    a combinational logic circuit, where output (gene expression) is determined by
    current input values (promoter bound TFs) only. However, the simultaneous arrival
    of TFs is a strong assumption, since transcription and translation of genes introduce
    intrinsic time delays and there is no global synchronisation among the arrival
    times of different molecular species at their targets. We present an experimentally
    implementable genetic circuit with two inputs and one output, which in the presence
    of small delays in input arrival, exhibits qualitatively distinct population-level
    phenotypes, over timescales that are longer than typical cell doubling times.
    From a dynamical systems point of view, these phenotypes represent long-lived
    transients: although they converge to the same value eventually, they do so after
    a very long time span. The key feature of this toy model genetic circuit is that,
    despite having only two inputs and one output, it is regulated by twenty-three
    distinct DNA-TF configurations, two of which are more stable than others (DNA
    looped states), one promoting and another blocking the expression of the output
    gene. Small delays in input arrival time result in a majority of cells in the
    population quickly reaching the stable state associated with the first input,
    while exiting of this stable state occurs at a slow timescale. In order to mechanistically
    model the behaviour of this genetic circuit, we used a rule-based modelling language,
    and implemented a grid-search to find parameter combinations giving rise to long-lived
    transients. Our analysis shows that in the absence of feedback, there exist path-dependent
    gene regulatory mechanisms based on the long timescale of transients. The behaviour
    of this toy model circuit suggests that gene regulatory networks can exploit event
    timing to create phenotypes, and it opens the possibility that they could use
    event timing to memorise events, without regulatory feedback. The model reveals
    the importance of (i) mechanistically modelling the transitions between the different
    DNA-TF states, and (ii) employing transient analysis thereof.'
acknowledgement: 'Tatjana Petrov’s research was supported in part by SNSF Advanced
  Postdoctoral Mobility Fellowship grant number P300P2 161067, the Ministry of Science,
  Research and the Arts of the state of Baden-Wurttemberg, and the DFG Centre of Excellence
  2117 ‘Centre for the Advanced Study of Collective Behaviour’ (ID: 422037984). Claudia
  Igler is the recipient of a DOC Fellowship of the Austrian Academy of Sciences.
  Thomas A. Henzinger’s research was supported in part by the Austrian Science Fund
  (FWF) under grant Z211-N23 (Wittgenstein Award).'
article_processing_charge: No
article_type: original
author:
- first_name: Tatjana
  full_name: Petrov, Tatjana
  last_name: Petrov
- first_name: Claudia
  full_name: Igler, Claudia
  id: 46613666-F248-11E8-B48F-1D18A9856A87
  last_name: Igler
- first_name: Ali
  full_name: Sezgin, Ali
  id: 4C7638DA-F248-11E8-B48F-1D18A9856A87
  last_name: Sezgin
- 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: Calin C
  full_name: Guet, Calin C
  id: 47F8433E-F248-11E8-B48F-1D18A9856A87
  last_name: Guet
  orcid: 0000-0001-6220-2052
citation:
  ama: Petrov T, Igler C, Sezgin A, Henzinger TA, Guet CC. Long lived transients in
    gene regulation. <i>Theoretical Computer Science</i>. 2021;893:1-16. doi:<a href="https://doi.org/10.1016/j.tcs.2021.05.023">10.1016/j.tcs.2021.05.023</a>
  apa: Petrov, T., Igler, C., Sezgin, A., Henzinger, T. A., &#38; Guet, C. C. (2021).
    Long lived transients in gene regulation. <i>Theoretical Computer Science</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.tcs.2021.05.023">https://doi.org/10.1016/j.tcs.2021.05.023</a>
  chicago: Petrov, Tatjana, Claudia Igler, Ali Sezgin, Thomas A Henzinger, and Calin
    C Guet. “Long Lived Transients in Gene Regulation.” <i>Theoretical Computer Science</i>.
    Elsevier, 2021. <a href="https://doi.org/10.1016/j.tcs.2021.05.023">https://doi.org/10.1016/j.tcs.2021.05.023</a>.
  ieee: T. Petrov, C. Igler, A. Sezgin, T. A. Henzinger, and C. C. Guet, “Long lived
    transients in gene regulation,” <i>Theoretical Computer Science</i>, vol. 893.
    Elsevier, pp. 1–16, 2021.
  ista: Petrov T, Igler C, Sezgin A, Henzinger TA, Guet CC. 2021. Long lived transients
    in gene regulation. Theoretical Computer Science. 893, 1–16.
  mla: Petrov, Tatjana, et al. “Long Lived Transients in Gene Regulation.” <i>Theoretical
    Computer Science</i>, vol. 893, Elsevier, 2021, pp. 1–16, doi:<a href="https://doi.org/10.1016/j.tcs.2021.05.023">10.1016/j.tcs.2021.05.023</a>.
  short: T. Petrov, C. Igler, A. Sezgin, T.A. Henzinger, C.C. Guet, Theoretical Computer
    Science 893 (2021) 1–16.
corr_author: '1'
date_created: 2021-07-11T22:01:18Z
date_published: 2021-06-04T00:00:00Z
date_updated: 2025-04-15T06:25:56Z
day: '04'
ddc:
- '004'
department:
- _id: ToHe
- _id: CaGu
doi: 10.1016/j.tcs.2021.05.023
external_id:
  isi:
  - '000710180500002'
file:
- access_level: open_access
  checksum: d3aef34cfb13e53bba4cf44d01680793
  content_type: application/pdf
  creator: dernst
  date_created: 2022-05-12T12:13:27Z
  date_updated: 2022-05-12T12:13:27Z
  file_id: '11364'
  file_name: 2021_TheoreticalComputerScience_Petrov.pdf
  file_size: 2566504
  relation: main_file
  success: 1
file_date_updated: 2022-05-12T12:13:27Z
has_accepted_license: '1'
intvolume: '       893'
isi: 1
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 1-16
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: Formal methods for the design and analysis of complex systems
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Long lived transients in gene regulation
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 893
year: '2021'
...
---
_id: '9827'
abstract:
- lang: eng
  text: 'The Nearest neighbour search (NNS) is a fundamental problem in many application
    domains dealing with multidimensional data. In a concurrent setting, where dynamic
    modifications are allowed, a linearizable implementation of the NNS is highly
    desirable.This paper introduces the LockFree-kD-tree (LFkD-tree ): a lock-free
    concurrent kD-tree, which implements an abstract data type (ADT) that provides
    the operations Add, Remove, Contains, and NNS. Our implementation is linearizable.
    The operations in the LFkD-tree use single-word read and compare-and-swap (Image
    1 ) atomic primitives, which are readily supported on available multi-core processors.
    We experimentally evaluate the LFkD-tree using several benchmarks comprising real-world
    and synthetic datasets. The experiments show that the presented design is scalable
    and achieves significant speed-up compared to the implementations of an existing
    sequential kD-tree and a recently proposed multidimensional indexing structure,
    PH-tree.'
article_processing_charge: No
article_type: original
author:
- first_name: Bapi
  full_name: Chatterjee, Bapi
  id: 3C41A08A-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-2742-4028
- first_name: Ivan
  full_name: Walulya, Ivan
  last_name: Walulya
- first_name: Philippas
  full_name: Tsigas, Philippas
  last_name: Tsigas
citation:
  ama: Chatterjee B, Walulya I, Tsigas P. Concurrent linearizable nearest neighbour
    search in LockFree-kD-tree. <i>Theoretical Computer Science</i>. 2021;886:27-48.
    doi:<a href="https://doi.org/10.1016/j.tcs.2021.06.041">10.1016/j.tcs.2021.06.041</a>
  apa: Chatterjee, B., Walulya, I., &#38; Tsigas, P. (2021). Concurrent linearizable
    nearest neighbour search in LockFree-kD-tree. <i>Theoretical Computer Science</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.tcs.2021.06.041">https://doi.org/10.1016/j.tcs.2021.06.041</a>
  chicago: Chatterjee, Bapi, Ivan Walulya, and Philippas Tsigas. “Concurrent Linearizable
    Nearest Neighbour Search in LockFree-KD-Tree.” <i>Theoretical Computer Science</i>.
    Elsevier, 2021. <a href="https://doi.org/10.1016/j.tcs.2021.06.041">https://doi.org/10.1016/j.tcs.2021.06.041</a>.
  ieee: B. Chatterjee, I. Walulya, and P. Tsigas, “Concurrent linearizable nearest
    neighbour search in LockFree-kD-tree,” <i>Theoretical Computer Science</i>, vol.
    886. Elsevier, pp. 27–48, 2021.
  ista: Chatterjee B, Walulya I, Tsigas P. 2021. Concurrent linearizable nearest neighbour
    search in LockFree-kD-tree. Theoretical Computer Science. 886, 27–48.
  mla: Chatterjee, Bapi, et al. “Concurrent Linearizable Nearest Neighbour Search
    in LockFree-KD-Tree.” <i>Theoretical Computer Science</i>, vol. 886, Elsevier,
    2021, pp. 27–48, doi:<a href="https://doi.org/10.1016/j.tcs.2021.06.041">10.1016/j.tcs.2021.06.041</a>.
  short: B. Chatterjee, I. Walulya, P. Tsigas, Theoretical Computer Science 886 (2021)
    27–48.
corr_author: '1'
date_created: 2021-08-08T22:01:31Z
date_published: 2021-09-13T00:00:00Z
date_updated: 2024-10-09T21:00:45Z
day: '13'
department:
- _id: DaAl
doi: 10.1016/j.tcs.2021.06.041
external_id:
  isi:
  - '000694718900004'
intvolume: '       886'
isi: 1
keyword:
- Concurrent data structure
- kD-tree
- Nearest neighbor search
- Similarity search
- Lock-free
- Linearizability
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://publications.lib.chalmers.se/records/fulltext/232185/232185.pdf
month: '09'
oa: 1
oa_version: Submitted Version
page: 27-48
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Concurrent linearizable nearest neighbour search in LockFree-kD-tree
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 886
year: '2021'
...
---
_id: '6761'
abstract:
- lang: eng
  text: In resource allocation games, selfish players share resources that are needed
    in order to fulfill their objectives. The cost of using a resource depends on
    the load on it. In the traditional setting, the players make their choices concurrently
    and in one-shot. That is, a strategy for a player is a subset of the resources.
    We introduce and study dynamic resource allocation games. In this setting, the
    game proceeds in phases. In each phase each player chooses one resource. A scheduler
    dictates the order in which the players proceed in a phase, possibly scheduling
    several players to proceed concurrently. The game ends when each player has collected
    a set of resources that fulfills his objective. The cost for each player then
    depends on this set as well as on the load on the resources in it – we consider
    both congestion and cost-sharing games. We argue that the dynamic setting is the
    suitable setting for many applications in practice. We study the stability of
    dynamic resource allocation games, where the appropriate notion of stability is
    that of subgame perfect equilibrium, study the inefficiency incurred due to selfish
    behavior, and also study problems that are particular to the dynamic setting,
    like constraints on the order in which resources can be chosen or the problem
    of finding a scheduler that achieves stability.
article_processing_charge: No
article_type: original
author:
- first_name: Guy
  full_name: Avni, Guy
  id: 463C8BC2-F248-11E8-B48F-1D18A9856A87
  last_name: Avni
  orcid: 0000-0001-5588-8287
- 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: Avni G, Henzinger TA, Kupferman O. Dynamic resource allocation games. <i>Theoretical
    Computer Science</i>. 2020;807:42-55. doi:<a href="https://doi.org/10.1016/j.tcs.2019.06.031">10.1016/j.tcs.2019.06.031</a>
  apa: Avni, G., Henzinger, T. A., &#38; Kupferman, O. (2020). Dynamic resource allocation
    games. <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/j.tcs.2019.06.031">https://doi.org/10.1016/j.tcs.2019.06.031</a>
  chicago: Avni, Guy, Thomas A Henzinger, and Orna Kupferman. “Dynamic Resource Allocation
    Games.” <i>Theoretical Computer Science</i>. Elsevier, 2020. <a href="https://doi.org/10.1016/j.tcs.2019.06.031">https://doi.org/10.1016/j.tcs.2019.06.031</a>.
  ieee: G. Avni, T. A. Henzinger, and O. Kupferman, “Dynamic resource allocation games,”
    <i>Theoretical Computer Science</i>, vol. 807. Elsevier, pp. 42–55, 2020.
  ista: Avni G, Henzinger TA, Kupferman O. 2020. Dynamic resource allocation games.
    Theoretical Computer Science. 807, 42–55.
  mla: Avni, Guy, et al. “Dynamic Resource Allocation Games.” <i>Theoretical Computer
    Science</i>, vol. 807, Elsevier, 2020, pp. 42–55, doi:<a href="https://doi.org/10.1016/j.tcs.2019.06.031">10.1016/j.tcs.2019.06.031</a>.
  short: G. Avni, T.A. Henzinger, O. Kupferman, Theoretical Computer Science 807 (2020)
    42–55.
date_created: 2019-08-04T21:59:20Z
date_published: 2020-02-06T00:00:00Z
date_updated: 2026-04-16T09:35:15Z
day: '06'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1016/j.tcs.2019.06.031
external_id:
  isi:
  - '000512219400004'
file:
- access_level: open_access
  checksum: e86635417f45eb2cd75778f91382f737
  content_type: application/pdf
  creator: dernst
  date_created: 2020-10-09T06:31:22Z
  date_updated: 2020-10-09T06:31:22Z
  file_id: '8639'
  file_name: 2020_TheoreticalCS_Avni.pdf
  file_size: 1413001
  relation: main_file
  success: 1
file_date_updated: 2020-10-09T06:31:22Z
has_accepted_license: '1'
intvolume: '       807'
isi: 1
language:
- iso: eng
month: '02'
oa: 1
oa_version: Submitted Version
page: 42-55
project:
- _id: 25F2ACDE-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S11402-N23
  name: Rigorous Systems Engineering
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z211
  name: Formal methods for the design and analysis of complex systems
- _id: 264B3912-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: M02369
  name: Formal Methods meets Algorithmic Game Theory
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  record:
  - id: '1341'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Dynamic resource allocation games
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 807
year: '2020'
...
---
_id: '11898'
abstract:
- lang: eng
  text: "We build upon the recent papers by Weinstein and Yu (FOCS'16), Larsen (FOCS'12),
    and Clifford et al. (FOCS'15) to present a general framework that gives amortized
    lower bounds on the update and query times of dynamic data structures. Using our
    framework, we present two concrete results.\r\n(1) For the dynamic polynomial
    evaluation problem, where the polynomial is defined over a finite field of size
    n1+Ω(1) and has degree n, any dynamic data structure must either have an amortized
    update time of Ω((lgn/lglgn)2) or an amortized query time of Ω((lgn/lglgn)2).\r\n(2)
    For the dynamic online matrix vector multiplication problem, where we get an n×n
    matrix whose entires are drawn from a finite field of size nΘ(1), any dynamic
    data structure must either have an amortized update time of Ω((lgn/lglgn)2) or
    an amortized query time of Ω(n⋅(lgn/lglgn)2).\r\nFor these two problems, the previous
    works by Larsen (FOCS'12) and Clifford et al. (FOCS'15) gave the same lower bounds,
    but only for worst case update and query times. Our bounds match the highest unconditional
    lower bounds known till date for any dynamic problem in the cell-probe model."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Sayan
  full_name: Bhattacharya, Sayan
  last_name: Bhattacharya
- 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: Stefan
  full_name: Neumann, Stefan
  last_name: Neumann
citation:
  ama: Bhattacharya S, Henzinger M, Neumann S. New amortized cell-probe lower bounds
    for dynamic problems. <i>Theoretical Computer Science</i>. 2019;779:72-87. doi:<a
    href="https://doi.org/10.1016/j.tcs.2019.01.043">10.1016/j.tcs.2019.01.043</a>
  apa: Bhattacharya, S., Henzinger, M., &#38; Neumann, S. (2019). New amortized cell-probe
    lower bounds for dynamic problems. <i>Theoretical Computer Science</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.tcs.2019.01.043">https://doi.org/10.1016/j.tcs.2019.01.043</a>
  chicago: Bhattacharya, Sayan, Monika Henzinger, and Stefan Neumann. “New Amortized
    Cell-Probe Lower Bounds for Dynamic Problems.” <i>Theoretical Computer Science</i>.
    Elsevier, 2019. <a href="https://doi.org/10.1016/j.tcs.2019.01.043">https://doi.org/10.1016/j.tcs.2019.01.043</a>.
  ieee: S. Bhattacharya, M. Henzinger, and S. Neumann, “New amortized cell-probe lower
    bounds for dynamic problems,” <i>Theoretical Computer Science</i>, vol. 779. Elsevier,
    pp. 72–87, 2019.
  ista: Bhattacharya S, Henzinger M, Neumann S. 2019. New amortized cell-probe lower
    bounds for dynamic problems. Theoretical Computer Science. 779, 72–87.
  mla: Bhattacharya, Sayan, et al. “New Amortized Cell-Probe Lower Bounds for Dynamic
    Problems.” <i>Theoretical Computer Science</i>, vol. 779, Elsevier, 2019, pp.
    72–87, doi:<a href="https://doi.org/10.1016/j.tcs.2019.01.043">10.1016/j.tcs.2019.01.043</a>.
  short: S. Bhattacharya, M. Henzinger, S. Neumann, Theoretical Computer Science 779
    (2019) 72–87.
date_created: 2022-08-17T09:02:15Z
date_published: 2019-08-02T00:00:00Z
date_updated: 2024-11-06T12:23:49Z
day: '02'
doi: 10.1016/j.tcs.2019.01.043
extern: '1'
external_id:
  arxiv:
  - '1902.02304'
intvolume: '       779'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1902.02304
month: '08'
oa: 1
oa_version: Preprint
page: 72-87
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: New amortized cell-probe lower bounds for dynamic problems
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 779
year: '2019'
...
---
_id: '11901'
abstract:
- lang: eng
  text: We consider auctions of indivisible items to unit-demand bidders with budgets.
    This setting was suggested as an expressive model for single sponsored search
    auctions. Prior work presented mechanisms that compute bidder-optimal outcomes
    and are truthful for a restricted set of inputs, i.e., inputs in so-called general
    position. This condition is easily violated. We provide the first mechanism that
    is truthful in expectation for all inputs and achieves for each bidder no worse
    utility than the bidder-optimal outcome. Additionally we give a complete characterization
    for which inputs mechanisms that compute bidder-optimal outcomes are truthful.
article_processing_charge: No
article_type: original
author:
- 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: Veronika
  full_name: Loitzenbauer, Veronika
  last_name: Loitzenbauer
citation:
  ama: Henzinger M, Loitzenbauer V. Truthful unit-demand auctions with budgets revisited.
    <i>Theoretical Computer Science</i>. 2015;573:1-15. doi:<a href="https://doi.org/10.1016/j.tcs.2015.01.033">10.1016/j.tcs.2015.01.033</a>
  apa: Henzinger, M., &#38; Loitzenbauer, V. (2015). Truthful unit-demand auctions
    with budgets revisited. <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/j.tcs.2015.01.033">https://doi.org/10.1016/j.tcs.2015.01.033</a>
  chicago: Henzinger, Monika, and Veronika Loitzenbauer. “Truthful Unit-Demand Auctions
    with Budgets Revisited.” <i>Theoretical Computer Science</i>. Elsevier, 2015.
    <a href="https://doi.org/10.1016/j.tcs.2015.01.033">https://doi.org/10.1016/j.tcs.2015.01.033</a>.
  ieee: M. Henzinger and V. Loitzenbauer, “Truthful unit-demand auctions with budgets
    revisited,” <i>Theoretical Computer Science</i>, vol. 573. Elsevier, pp. 1–15,
    2015.
  ista: Henzinger M, Loitzenbauer V. 2015. Truthful unit-demand auctions with budgets
    revisited. Theoretical Computer Science. 573, 1–15.
  mla: Henzinger, Monika, and Veronika Loitzenbauer. “Truthful Unit-Demand Auctions
    with Budgets Revisited.” <i>Theoretical Computer Science</i>, vol. 573, Elsevier,
    2015, pp. 1–15, doi:<a href="https://doi.org/10.1016/j.tcs.2015.01.033">10.1016/j.tcs.2015.01.033</a>.
  short: M. Henzinger, V. Loitzenbauer, Theoretical Computer Science 573 (2015) 1–15.
date_created: 2022-08-17T09:06:53Z
date_published: 2015-03-30T00:00:00Z
date_updated: 2024-11-06T12:24:01Z
day: '30'
doi: 10.1016/j.tcs.2015.01.033
extern: '1'
intvolume: '       573'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.tcs.2015.01.033
month: '03'
oa: 1
oa_version: None
page: 1-15
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Truthful unit-demand auctions with budgets revisited
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 573
year: '2015'
...
---
_id: '5804'
abstract:
- lang: eng
  text: We present here the first integer-based algorithm for constructing a well-defined
    lattice sphere specified by integer radius and integer center. The algorithm evolves
    from a unique correspondence between the lattice points comprising the sphere
    and the distribution of sum of three square numbers in integer intervals. We characterize
    these intervals to derive a useful set of recurrences, which, in turn, aids in
    efficient computation. Each point of the lattice sphere is determined by resorting
    to only a few primitive operations in the integer domain. The symmetry of its
    quadraginta octants provides an added advantage by confining the computation to
    its prima quadraginta octant. Detailed theoretical analysis and experimental results
    have been furnished to demonstrate its simplicity and elegance.
author:
- first_name: Ranita
  full_name: Biswas, Ranita
  id: 3C2B033E-F248-11E8-B48F-1D18A9856A87
  last_name: Biswas
  orcid: 0000-0002-5372-7890
- first_name: Partha
  full_name: Bhowmick, Partha
  last_name: Bhowmick
citation:
  ama: Biswas R, Bhowmick P. From prima quadraginta octant to lattice sphere through
    primitive integer operations. <i>Theoretical Computer Science</i>. 2015;624(4):56-72.
    doi:<a href="https://doi.org/10.1016/j.tcs.2015.11.018">10.1016/j.tcs.2015.11.018</a>
  apa: Biswas, R., &#38; Bhowmick, P. (2015). From prima quadraginta octant to lattice
    sphere through primitive integer operations. <i>Theoretical Computer Science</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.tcs.2015.11.018">https://doi.org/10.1016/j.tcs.2015.11.018</a>
  chicago: Biswas, Ranita, and Partha Bhowmick. “From Prima Quadraginta Octant to
    Lattice Sphere through Primitive Integer Operations.” <i>Theoretical Computer
    Science</i>. Elsevier, 2015. <a href="https://doi.org/10.1016/j.tcs.2015.11.018">https://doi.org/10.1016/j.tcs.2015.11.018</a>.
  ieee: R. Biswas and P. Bhowmick, “From prima quadraginta octant to lattice sphere
    through primitive integer operations,” <i>Theoretical Computer Science</i>, vol.
    624, no. 4. Elsevier, pp. 56–72, 2015.
  ista: Biswas R, Bhowmick P. 2015. From prima quadraginta octant to lattice sphere
    through primitive integer operations. Theoretical Computer Science. 624(4), 56–72.
  mla: Biswas, Ranita, and Partha Bhowmick. “From Prima Quadraginta Octant to Lattice
    Sphere through Primitive Integer Operations.” <i>Theoretical Computer Science</i>,
    vol. 624, no. 4, Elsevier, 2015, pp. 56–72, doi:<a href="https://doi.org/10.1016/j.tcs.2015.11.018">10.1016/j.tcs.2015.11.018</a>.
  short: R. Biswas, P. Bhowmick, Theoretical Computer Science 624 (2015) 56–72.
date_created: 2019-01-08T20:44:06Z
date_published: 2015-04-18T00:00:00Z
date_updated: 2021-01-12T08:03:36Z
day: '18'
doi: 10.1016/j.tcs.2015.11.018
extern: '1'
intvolume: '       624'
issue: '4'
language:
- iso: eng
month: '04'
oa_version: None
page: 56-72
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: From prima quadraginta octant to lattice sphere through primitive integer operations
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 624
year: '2015'
...
---
_id: '5807'
author:
- first_name: Ranita
  full_name: Biswas, Ranita
  id: 3C2B033E-F248-11E8-B48F-1D18A9856A87
  last_name: Biswas
  orcid: 0000-0002-5372-7890
- first_name: Partha
  full_name: Bhowmick, Partha
  last_name: Bhowmick
citation:
  ama: Biswas R, Bhowmick P. On different topological classes of spherical geodesic
    paths and circles inZ3. <i>Theoretical Computer Science</i>. 2015;605(11):146-163.
    doi:<a href="https://doi.org/10.1016/j.tcs.2015.09.003">10.1016/j.tcs.2015.09.003</a>
  apa: Biswas, R., &#38; Bhowmick, P. (2015). On different topological classes of
    spherical geodesic paths and circles inZ3. <i>Theoretical Computer Science</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.tcs.2015.09.003">https://doi.org/10.1016/j.tcs.2015.09.003</a>
  chicago: Biswas, Ranita, and Partha Bhowmick. “On Different Topological Classes
    of Spherical Geodesic Paths and Circles InZ3.” <i>Theoretical Computer Science</i>.
    Elsevier, 2015. <a href="https://doi.org/10.1016/j.tcs.2015.09.003">https://doi.org/10.1016/j.tcs.2015.09.003</a>.
  ieee: R. Biswas and P. Bhowmick, “On different topological classes of spherical
    geodesic paths and circles inZ3,” <i>Theoretical Computer Science</i>, vol. 605,
    no. 11. Elsevier, pp. 146–163, 2015.
  ista: Biswas R, Bhowmick P. 2015. On different topological classes of spherical
    geodesic paths and circles inZ3. Theoretical Computer Science. 605(11), 146–163.
  mla: Biswas, Ranita, and Partha Bhowmick. “On Different Topological Classes of Spherical
    Geodesic Paths and Circles InZ3.” <i>Theoretical Computer Science</i>, vol. 605,
    no. 11, Elsevier, 2015, pp. 146–63, doi:<a href="https://doi.org/10.1016/j.tcs.2015.09.003">10.1016/j.tcs.2015.09.003</a>.
  short: R. Biswas, P. Bhowmick, Theoretical Computer Science 605 (2015) 146–163.
date_created: 2019-01-08T20:44:52Z
date_published: 2015-11-09T00:00:00Z
date_updated: 2021-01-12T08:03:37Z
day: '09'
doi: 10.1016/j.tcs.2015.09.003
extern: '1'
intvolume: '       605'
issue: '11'
language:
- iso: eng
month: '11'
oa_version: None
page: 146-163
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: On different topological classes of spherical geodesic paths and circles inZ3
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 605
year: '2015'
...
---
_id: '2246'
abstract:
- lang: eng
  text: 'Muller games are played by two players moving a token along a graph; the
    winner is determined by the set of vertices that occur infinitely often. The central
    algorithmic problem is to compute the winning regions for the players. Different
    classes and representations of Muller games lead to problems of varying computational
    complexity. One such class are parity games; these are of particular significance
    in computational complexity, as they remain one of the few combinatorial problems
    known to be in NP ∩ co-NP but not known to be in P. We show that winning regions
    for a Muller game can be determined from the alternating structure of its traps.
    To every Muller game we then associate a natural number that we call its trap
    depth; this parameter measures how complicated the trap structure is. We present
    algorithms for parity games that run in polynomial time for graphs of bounded
    trap depth, and in general run in time exponential in the trap depth. '
article_processing_charge: No
arxiv: 1
author:
- first_name: Andrey
  full_name: Grinshpun, Andrey
  last_name: Grinshpun
- first_name: Pakawat
  full_name: Phalitnonkiat, Pakawat
  last_name: Phalitnonkiat
- first_name: Sasha
  full_name: Rubin, Sasha
  id: 2EC51194-F248-11E8-B48F-1D18A9856A87
  last_name: Rubin
- first_name: Andrei
  full_name: Tarfulea, Andrei
  last_name: Tarfulea
citation:
  ama: Grinshpun A, Phalitnonkiat P, Rubin S, Tarfulea A. Alternating traps in Muller
    and parity games. <i>Theoretical Computer Science</i>. 2014;521:73-91. doi:<a
    href="https://doi.org/10.1016/j.tcs.2013.11.032">10.1016/j.tcs.2013.11.032</a>
  apa: Grinshpun, A., Phalitnonkiat, P., Rubin, S., &#38; Tarfulea, A. (2014). Alternating
    traps in Muller and parity games. <i>Theoretical Computer Science</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.tcs.2013.11.032">https://doi.org/10.1016/j.tcs.2013.11.032</a>
  chicago: Grinshpun, Andrey, Pakawat Phalitnonkiat, Sasha Rubin, and Andrei Tarfulea.
    “Alternating Traps in Muller and Parity Games.” <i>Theoretical Computer Science</i>.
    Elsevier, 2014. <a href="https://doi.org/10.1016/j.tcs.2013.11.032">https://doi.org/10.1016/j.tcs.2013.11.032</a>.
  ieee: A. Grinshpun, P. Phalitnonkiat, S. Rubin, and A. Tarfulea, “Alternating traps
    in Muller and parity games,” <i>Theoretical Computer Science</i>, vol. 521. Elsevier,
    pp. 73–91, 2014.
  ista: Grinshpun A, Phalitnonkiat P, Rubin S, Tarfulea A. 2014. Alternating traps
    in Muller and parity games. Theoretical Computer Science. 521, 73–91.
  mla: Grinshpun, Andrey, et al. “Alternating Traps in Muller and Parity Games.” <i>Theoretical
    Computer Science</i>, vol. 521, Elsevier, 2014, pp. 73–91, doi:<a href="https://doi.org/10.1016/j.tcs.2013.11.032">10.1016/j.tcs.2013.11.032</a>.
  short: A. Grinshpun, P. Phalitnonkiat, S. Rubin, A. Tarfulea, Theoretical Computer
    Science 521 (2014) 73–91.
corr_author: '1'
date_created: 2018-12-11T11:56:33Z
date_published: 2014-02-13T00:00:00Z
date_updated: 2026-04-16T10:08:15Z
day: '13'
department:
- _id: KrCh
doi: 10.1016/j.tcs.2013.11.032
external_id:
  arxiv:
  - '1303.3777'
  isi:
  - '000331433100007'
intvolume: '       521'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1303.3777
month: '02'
oa: 1
oa_version: Submitted Version
page: 73 - 91
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
publist_id: '4703'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Alternating traps in Muller and parity games
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 521
year: '2014'
...
---
_id: '11902'
abstract:
- lang: eng
  text: "We study the problem of matching bidders to items where each bidder i has
    general, strictly monotonic utility functions ui,j(pj) expressing his utility
    of being matched to item j at price pj. For this setting we prove that a bidder
    optimal outcome always exists, even when the utility functions are non-linear
    and non-continuous. We give sufficient conditions under\r\nwhich every mechanism
    that finds a bidder optimal outcome is incentive compatible. We also give a mechanism
    that finds a bidder optimal outcome if the conditions for incentive compatibility
    are satisfied. The running time of this mechanism is exponential in the number
    of items, but polynomial in the number of bidders."
article_processing_charge: No
article_type: original
author:
- first_name: Paul
  full_name: Dütting, Paul
  last_name: Dütting
- 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: Ingmar
  full_name: Weber, Ingmar
  last_name: Weber
citation:
  ama: Dütting P, Henzinger M, Weber I. Bidder optimal assignments for general utilities.
    <i>Theoretical Computer Science</i>. 2013;478(3):22-32. doi:<a href="https://doi.org/10.1016/j.tcs.2013.01.030">10.1016/j.tcs.2013.01.030</a>
  apa: Dütting, P., Henzinger, M., &#38; Weber, I. (2013). Bidder optimal assignments
    for general utilities. <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/j.tcs.2013.01.030">https://doi.org/10.1016/j.tcs.2013.01.030</a>
  chicago: Dütting, Paul, Monika Henzinger, and Ingmar Weber. “Bidder Optimal Assignments
    for General Utilities.” <i>Theoretical Computer Science</i>. Elsevier, 2013. <a
    href="https://doi.org/10.1016/j.tcs.2013.01.030">https://doi.org/10.1016/j.tcs.2013.01.030</a>.
  ieee: P. Dütting, M. Henzinger, and I. Weber, “Bidder optimal assignments for general
    utilities,” <i>Theoretical Computer Science</i>, vol. 478, no. 3. Elsevier, pp.
    22–32, 2013.
  ista: Dütting P, Henzinger M, Weber I. 2013. Bidder optimal assignments for general
    utilities. Theoretical Computer Science. 478(3), 22–32.
  mla: Dütting, Paul, et al. “Bidder Optimal Assignments for General Utilities.” <i>Theoretical
    Computer Science</i>, vol. 478, no. 3, Elsevier, 2013, pp. 22–32, doi:<a href="https://doi.org/10.1016/j.tcs.2013.01.030">10.1016/j.tcs.2013.01.030</a>.
  short: P. Dütting, M. Henzinger, I. Weber, Theoretical Computer Science 478 (2013)
    22–32.
date_created: 2022-08-17T11:11:04Z
date_published: 2013-03-25T00:00:00Z
date_updated: 2024-11-06T12:24:12Z
day: '25'
doi: 10.1016/j.tcs.2013.01.030
extern: '1'
intvolume: '       478'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
page: 22-32
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  record:
  - id: '11799'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Bidder optimal assignments for general utilities
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 478
year: '2013'
...
---
_id: '4407'
abstract:
- lang: eng
  text: 'This paper presents a complete axiomatization of two decidable propositional
    real-time linear temporal logics: Event Clock Logic (EventClockTL) and Metric
    Interval Temporal Logic with past (MetricIntervalTL). The completeness proof consists
    of an effective proof building procedure for EventClockTL. From this result we
    obtain a complete axiomatization of MetricIntervalTL by providing axioms translating
    MetricIntervalTL formulae into EventClockTL formulae, the two logics being equally
    expressive. Our proof is structured to yield axiomatizations also for interesting
    fragments of these logics, such as the linear temporal logic of the real numbers
    (TLR).'
article_processing_charge: No
article_type: original
author:
- first_name: Jean
  full_name: Raskin, Jean
  last_name: Raskin
- first_name: Pierre
  full_name: Schobbens, Pierre
  last_name: Schobbens
- 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: Raskin J, Schobbens P, Henzinger TA. Axioms for real-time logics. <i>Theoretical
    Computer Science</i>. 2002;274(1-2):151-182. doi:<a href="https://doi.org/10.1016/S0304-3975(00)00308-X">10.1016/S0304-3975(00)00308-X</a>
  apa: Raskin, J., Schobbens, P., &#38; Henzinger, T. A. (2002). Axioms for real-time
    logics. <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/S0304-3975(00)00308-X">https://doi.org/10.1016/S0304-3975(00)00308-X</a>
  chicago: Raskin, Jean, Pierre Schobbens, and Thomas A Henzinger. “Axioms for Real-Time
    Logics.” <i>Theoretical Computer Science</i>. Elsevier, 2002. <a href="https://doi.org/10.1016/S0304-3975(00)00308-X">https://doi.org/10.1016/S0304-3975(00)00308-X</a>.
  ieee: J. Raskin, P. Schobbens, and T. A. Henzinger, “Axioms for real-time logics,”
    <i>Theoretical Computer Science</i>, vol. 274, no. 1–2. Elsevier, pp. 151–182,
    2002.
  ista: Raskin J, Schobbens P, Henzinger TA. 2002. Axioms for real-time logics. Theoretical
    Computer Science. 274(1–2), 151–182.
  mla: Raskin, Jean, et al. “Axioms for Real-Time Logics.” <i>Theoretical Computer
    Science</i>, vol. 274, no. 1–2, Elsevier, 2002, pp. 151–82, doi:<a href="https://doi.org/10.1016/S0304-3975(00)00308-X">10.1016/S0304-3975(00)00308-X</a>.
  short: J. Raskin, P. Schobbens, T.A. Henzinger, Theoretical Computer Science 274
    (2002) 151–182.
date_created: 2018-12-11T12:08:42Z
date_published: 2002-03-01T00:00:00Z
date_updated: 2023-06-06T09:10:56Z
day: '01'
doi: 10.1016/S0304-3975(00)00308-X
extern: '1'
intvolume: '       274'
issue: 1-2
language:
- iso: eng
month: '03'
oa_version: None
page: 151 - 182
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
publist_id: '324'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Axioms for real-time logics
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 274
year: '2002'
...
---
_id: '4442'
abstract:
- lang: eng
  text: Rectangular hybrid automata model digital control programs of analog plant
    environments. We study rectangular hybrid automata where the plant state evolves
    continuously in real-numbered time, and the controller samples the plant state
    and changes the control state discretely, only at the integer points in time.
    We prove that rectangular hybrid automata have finite bisimilarity quotients when
    all control transitions happen at integer times, even if the constraints on the
    derivatives of the variables vary between control states. This is in contrast
    with the conventional model where control transitions may happen at any real time,
    and already the reachability problem is undecidable. Based on the finite bisimilarity
    quotients, we give an exponential algorithm for the symbolic sampling-controller
    synthesis of rectangular automata. We show our algorithm to be optimal by proving
    the problem to be EXPTIME-hard. We also show that rectangular automata form a
    maximal class of systems for which the sampling-controller synthesis problem can
    be solved algorithmically.
article_processing_charge: No
article_type: original
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: Peter
  full_name: Kopke, Peter
  last_name: Kopke
citation:
  ama: Henzinger TA, Kopke P. Discrete-time control for rectangular hybrid automata.
    <i>Theoretical Computer Science</i>. 1999;221(1-2):369-392. doi:<a href="https://doi.org/10.1016/S0304-3975(99)00038-9">10.1016/S0304-3975(99)00038-9</a>
  apa: Henzinger, T. A., &#38; Kopke, P. (1999). Discrete-time control for rectangular
    hybrid automata. <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/S0304-3975(99)00038-9">https://doi.org/10.1016/S0304-3975(99)00038-9</a>
  chicago: Henzinger, Thomas A, and Peter Kopke. “Discrete-Time Control for Rectangular
    Hybrid Automata.” <i>Theoretical Computer Science</i>. Elsevier, 1999. <a href="https://doi.org/10.1016/S0304-3975(99)00038-9">https://doi.org/10.1016/S0304-3975(99)00038-9</a>.
  ieee: T. A. Henzinger and P. Kopke, “Discrete-time control for rectangular hybrid
    automata,” <i>Theoretical Computer Science</i>, vol. 221, no. 1–2. Elsevier, pp.
    369–392, 1999.
  ista: Henzinger TA, Kopke P. 1999. Discrete-time control for rectangular hybrid
    automata. Theoretical Computer Science. 221(1–2), 369–392.
  mla: Henzinger, Thomas A., and Peter Kopke. “Discrete-Time Control for Rectangular
    Hybrid Automata.” <i>Theoretical Computer Science</i>, vol. 221, no. 1–2, Elsevier,
    1999, pp. 369–92, doi:<a href="https://doi.org/10.1016/S0304-3975(99)00038-9">10.1016/S0304-3975(99)00038-9</a>.
  short: T.A. Henzinger, P. Kopke, Theoretical Computer Science 221 (1999) 369–392.
date_created: 2018-12-11T12:08:52Z
date_published: 1999-01-01T00:00:00Z
date_updated: 2022-09-06T08:03:48Z
day: '01'
doi: 10.1016/S0304-3975(99)00038-9
extern: '1'
intvolume: '       221'
issue: 1-2
language:
- iso: eng
month: '01'
oa_version: None
page: 369 - 392
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
publist_id: '290'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Discrete-time control for rectangular hybrid automata
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 221
year: '1999'
...
---
_id: '4613'
abstract:
- lang: eng
  text: We present a general framework for the formal specification and algorithmic
    analysis of hybrid systems. A hybrid system consists of a discrete program with
    an analog environment. We model hybrid systems as finite automata equipped with
    variables that evolve continuously with time according to dynamical laws. For
    verification purposes, we restrict ourselves to linear hybrid systems, where all
    variables follow piecewise-linear trajectories. We provide decidability and undecidability
    results for classes of linear hybrid systems, and we show that standard program-analysis
    techniques can be adapted to linear hybrid systems. In particular, we consider
    symbolic model-checking and minimization procedures that are based on the reachability
    analysis of an infinite state space. The procedures iteratively compute state
    sets that are definable as unions of convex polyhedra in multidimensional real
    space. We also present approximation techniques for dealing with systems for which
    the iterative procedures do not converge.
article_processing_charge: No
article_type: original
author:
- first_name: Rajeev
  full_name: Alur, Rajeev
  last_name: Alur
- first_name: Costas
  full_name: Courcoubetis, Costas
  last_name: Courcoubetis
- first_name: Nicolas
  full_name: Halbwachs, Nicolas
  last_name: Halbwachs
- 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: Pei
  full_name: Ho, Pei
  last_name: Ho
- first_name: Xavier
  full_name: Nicollin, Xavier
  last_name: Nicollin
- first_name: Alfredo
  full_name: Olivero, Alfredo
  last_name: Olivero
- first_name: Joseph
  full_name: Sifakis, Joseph
  last_name: Sifakis
- first_name: Sergio
  full_name: Yovine, Sergio
  last_name: Yovine
citation:
  ama: Alur R, Courcoubetis C, Halbwachs N, et al. The algorithmic analysis of hybrid
    systems. <i>Theoretical Computer Science</i>. 1995;138(1):3-34. doi:<a href="https://doi.org/10.1016/0304-3975(94)00202-T">10.1016/0304-3975(94)00202-T</a>
  apa: Alur, R., Courcoubetis, C., Halbwachs, N., Henzinger, T. A., Ho, P., Nicollin,
    X., … Yovine, S. (1995). The algorithmic analysis of hybrid systems. <i>Theoretical
    Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/0304-3975(94)00202-T">https://doi.org/10.1016/0304-3975(94)00202-T</a>
  chicago: Alur, Rajeev, Costas Courcoubetis, Nicolas Halbwachs, Thomas A Henzinger,
    Pei Ho, Xavier Nicollin, Alfredo Olivero, Joseph Sifakis, and Sergio Yovine. “The
    Algorithmic Analysis of Hybrid Systems.” <i>Theoretical Computer Science</i>.
    Elsevier, 1995. <a href="https://doi.org/10.1016/0304-3975(94)00202-T">https://doi.org/10.1016/0304-3975(94)00202-T</a>.
  ieee: R. Alur <i>et al.</i>, “The algorithmic analysis of hybrid systems,” <i>Theoretical
    Computer Science</i>, vol. 138, no. 1. Elsevier, pp. 3–34, 1995.
  ista: Alur R, Courcoubetis C, Halbwachs N, Henzinger TA, Ho P, Nicollin X, Olivero
    A, Sifakis J, Yovine S. 1995. The algorithmic analysis of hybrid systems. Theoretical
    Computer Science. 138(1), 3–34.
  mla: Alur, Rajeev, et al. “The Algorithmic Analysis of Hybrid Systems.” <i>Theoretical
    Computer Science</i>, vol. 138, no. 1, Elsevier, 1995, pp. 3–34, doi:<a href="https://doi.org/10.1016/0304-3975(94)00202-T">10.1016/0304-3975(94)00202-T</a>.
  short: R. Alur, C. Courcoubetis, N. Halbwachs, T.A. Henzinger, P. Ho, X. Nicollin,
    A. Olivero, J. Sifakis, S. Yovine, Theoretical Computer Science 138 (1995) 3–34.
date_created: 2018-12-11T12:09:45Z
date_published: 1995-02-06T00:00:00Z
date_updated: 2022-06-09T13:40:48Z
day: '06'
doi: 10.1016/0304-3975(94)00202-T
extern: '1'
intvolume: '       138'
issue: '1'
language:
- iso: eng
main_file_link:
- url: https://www.sciencedirect.com/science/article/pii/030439759400202T?via%3Dihub
month: '02'
oa_version: None
page: 3 - 34
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
publist_id: '94'
quality_controlled: '1'
status: public
title: The algorithmic analysis of hybrid systems
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 138
year: '1995'
...
---
_id: '4047'
abstract:
- lang: eng
  text: Arrangements of curves in the plane are fundamental to many problems in computational
    and combinatorial geometry (e.g. motion planning, algebraic cell decomposition,
    etc.). In this paper we study various topological and combinatorial properties
    of such arrangements under some mild assumptions on the shape of the curves, and
    develop basic tools for the construction, manipulation, and analysis of these
    arrangements. Our main results include a generalization of the zone theorem of
    Edelsbrunner (1986) and Chazelle (1985) to arrangements of curves (in which we
    show that the combinatorial complexity of the zone of a curve is nearly linear
    in the number of curves) and an application of that theorem to obtain a nearly
    quadratic incremental algorithm for the construction of such arrangements.
acknowledgement: 'Work on this paper by the first author has been supported by the
  National Science Foundation under grant CCR-8714565. Work by the third and sixth
  authors has been supported by Office of Naval Research Grant NOOOl4-82-K-0381, by
  National Science Foundation Grant No. NSF-DCR-83-20085, by grants from the Digital
  Equipment Corporation, and the IBM Corporation. Work by the sixth author has also
  been supported by a research grant from the NCRD- the Israeli National Council for
  Research and Development. Work by the fourth author has been supported by National
  Science Foundation Grant DMS-8501947. '
article_processing_charge: No
article_type: original
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Leonidas
  full_name: Guibas, Leonidas
  last_name: Guibas
- first_name: János
  full_name: Pach, János
  last_name: Pach
- first_name: Richard
  full_name: Pollack, Richard
  last_name: Pollack
- first_name: Raimund
  full_name: Seidel, Raimund
  last_name: Seidel
- first_name: Micha
  full_name: Sharir, Micha
  last_name: Sharir
citation:
  ama: Edelsbrunner H, Guibas L, Pach J, Pollack R, Seidel R, Sharir M. Arrangements
    of curves in the plane - topology, combinatorics, and algorithms. <i>Theoretical
    Computer Science</i>. 1992;92(2):319-336. doi:<a href="https://doi.org/10.1016/0304-3975(92)90319-B">10.1016/0304-3975(92)90319-B</a>
  apa: Edelsbrunner, H., Guibas, L., Pach, J., Pollack, R., Seidel, R., &#38; Sharir,
    M. (1992). Arrangements of curves in the plane - topology, combinatorics, and
    algorithms. <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/0304-3975(92)90319-B">https://doi.org/10.1016/0304-3975(92)90319-B</a>
  chicago: Edelsbrunner, Herbert, Leonidas Guibas, János Pach, Richard Pollack, Raimund
    Seidel, and Micha Sharir. “Arrangements of Curves in the Plane - Topology, Combinatorics,
    and Algorithms.” <i>Theoretical Computer Science</i>. Elsevier, 1992. <a href="https://doi.org/10.1016/0304-3975(92)90319-B">https://doi.org/10.1016/0304-3975(92)90319-B</a>.
  ieee: H. Edelsbrunner, L. Guibas, J. Pach, R. Pollack, R. Seidel, and M. Sharir,
    “Arrangements of curves in the plane - topology, combinatorics, and algorithms,”
    <i>Theoretical Computer Science</i>, vol. 92, no. 2. Elsevier, pp. 319–336, 1992.
  ista: Edelsbrunner H, Guibas L, Pach J, Pollack R, Seidel R, Sharir M. 1992. Arrangements
    of curves in the plane - topology, combinatorics, and algorithms. Theoretical
    Computer Science. 92(2), 319–336.
  mla: Edelsbrunner, Herbert, et al. “Arrangements of Curves in the Plane - Topology,
    Combinatorics, and Algorithms.” <i>Theoretical Computer Science</i>, vol. 92,
    no. 2, Elsevier, 1992, pp. 319–36, doi:<a href="https://doi.org/10.1016/0304-3975(92)90319-B">10.1016/0304-3975(92)90319-B</a>.
  short: H. Edelsbrunner, L. Guibas, J. Pach, R. Pollack, R. Seidel, M. Sharir, Theoretical
    Computer Science 92 (1992) 319–336.
date_created: 2018-12-11T12:06:37Z
date_published: 1992-01-20T00:00:00Z
date_updated: 2022-03-16T09:04:37Z
day: '20'
doi: 10.1016/0304-3975(92)90319-B
extern: '1'
intvolume: '        92'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.sciencedirect.com/science/article/pii/030439759290319B?via%3Dihub
month: '01'
oa: 1
oa_version: Published Version
page: 319 - 336
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
publist_id: '2079'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Arrangements of curves in the plane - topology, combinatorics, and algorithms
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 92
year: '1992'
...
---
_id: '4052'
abstract:
- lang: eng
  text: This paper describes an effective procedure for stratifying a real semi-algebraic
    set into cells of constant description size. The attractive feature of our method
    is that the number of cells produced is singly exponential in the number of input
    variables. This compares favorably with the doubly exponential size of Collins'
    decomposition. Unlike Collins' construction, however, our scheme does not produce
    a cell complex but only a smooth stratification. Nevertheless, we are able to
    apply our results in interesting ways to problems of point location and geometric
    optimization.
acknowledgement: The authors wish to thank DEC/Systems Research Center and DEC/Paris
  Research Laboratory, where part of this research was conducted. For individual support,
  Bernard Chazelle acknowledges the National Science Foundation for supporting this
  research in part under Grant CCR-8700917. Herbert Edelsbrunner acknowledges the
  support of the National Science Foundation under Grant CCR-8714565. Micha Sharir
  acknowledges the Office of Naval Research under Grant N00014-87-K-0129, the National
  Science Foundation under Grant No. NSF-DCR-83-20085, grants from the Digital Equipment
  Corporation and the IBM Corporation, and a research grant from the US-Israeli Binational
  Science Foundation.
article_processing_charge: No
article_type: original
author:
- first_name: Bernard
  full_name: Chazelle, Bernard
  last_name: Chazelle
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Leonidas
  full_name: Guibas, Leonidas
  last_name: Guibas
- first_name: Micha
  full_name: Sharir, Micha
  last_name: Sharir
citation:
  ama: Chazelle B, Edelsbrunner H, Guibas L, Sharir M. A singly exponential stratification
    scheme for real semi-algebraic varieties and its applications. <i>Theoretical
    Computer Science</i>. 1991;84(1):77-105. doi:<a href="https://doi.org/10.1016/0304-3975(91)90261-Y">10.1016/0304-3975(91)90261-Y</a>
  apa: Chazelle, B., Edelsbrunner, H., Guibas, L., &#38; Sharir, M. (1991). A singly
    exponential stratification scheme for real semi-algebraic varieties and its applications.
    <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/0304-3975(91)90261-Y">https://doi.org/10.1016/0304-3975(91)90261-Y</a>
  chicago: Chazelle, Bernard, Herbert Edelsbrunner, Leonidas Guibas, and Micha Sharir.
    “A Singly Exponential Stratification Scheme for Real Semi-Algebraic Varieties
    and Its Applications.” <i>Theoretical Computer Science</i>. Elsevier, 1991. <a
    href="https://doi.org/10.1016/0304-3975(91)90261-Y">https://doi.org/10.1016/0304-3975(91)90261-Y</a>.
  ieee: B. Chazelle, H. Edelsbrunner, L. Guibas, and M. Sharir, “A singly exponential
    stratification scheme for real semi-algebraic varieties and its applications,”
    <i>Theoretical Computer Science</i>, vol. 84, no. 1. Elsevier, pp. 77–105, 1991.
  ista: Chazelle B, Edelsbrunner H, Guibas L, Sharir M. 1991. A singly exponential
    stratification scheme for real semi-algebraic varieties and its applications.
    Theoretical Computer Science. 84(1), 77–105.
  mla: Chazelle, Bernard, et al. “A Singly Exponential Stratification Scheme for Real
    Semi-Algebraic Varieties and Its Applications.” <i>Theoretical Computer Science</i>,
    vol. 84, no. 1, Elsevier, 1991, pp. 77–105, doi:<a href="https://doi.org/10.1016/0304-3975(91)90261-Y">10.1016/0304-3975(91)90261-Y</a>.
  short: B. Chazelle, H. Edelsbrunner, L. Guibas, M. Sharir, Theoretical Computer
    Science 84 (1991) 77–105.
date_created: 2018-12-11T12:06:39Z
date_published: 1991-07-22T00:00:00Z
date_updated: 2022-03-02T10:23:58Z
day: '22'
doi: 10.1016/0304-3975(91)90261-Y
extern: '1'
intvolume: '        84'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.sciencedirect.com/science/article/pii/030439759190261Y?via%3Dihub
month: '07'
oa: 1
oa_version: Published Version
page: 77 - 105
publication: Theoretical Computer Science
publication_identifier:
  eissn:
  - 1879-2294
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
publist_id: '2073'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A singly exponential stratification scheme for real semi-algebraic varieties
  and its applications
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 84
year: '1991'
...
---
_id: '4084'
abstract:
- lang: eng
  text: "A tour  of a finite set P of points is a necklace-tour if there are disks
    with the points in P as centers such that two disks intersect if and only if their
    centers are adjacent in . It has been observed by Sanders that a necklace-tour
    is an optimal traveling salesman tour.\r\n\r\nIn this paper, we present an algorithm
    that either reports that no necklace-tour exists or outputs a necklace-tour of
    a given set of n points in O(n2 log n) time. If a tour is given, then we can test
    in O(n2) time whether or not this tour is a necklace-tour. Both algorithms can
    be generalized to ƒ-factors of point sets in the plane. The complexity results
    rely on a combinatorial analysis of certain intersection graphs of disks defined
    for finite sets of points in the plane."
article_processing_charge: No
article_type: original
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Günter
  full_name: Rote, Günter
  last_name: Rote
- first_name: Emo
  full_name: Welzl, Emo
  last_name: Welzl
citation:
  ama: Edelsbrunner H, Rote G, Welzl E. Testing the necklace condition for shortest
    tours and optimal factors in the plane. <i>Theoretical Computer Science</i>. 1989;66(2):157-180.
    doi:<a href="https://doi.org/10.1016/0304-3975(89)90133-3">10.1016/0304-3975(89)90133-3</a>
  apa: Edelsbrunner, H., Rote, G., &#38; Welzl, E. (1989). Testing the necklace condition
    for shortest tours and optimal factors in the plane. <i>Theoretical Computer Science</i>.
    Elsevier. <a href="https://doi.org/10.1016/0304-3975(89)90133-3">https://doi.org/10.1016/0304-3975(89)90133-3</a>
  chicago: Edelsbrunner, Herbert, Günter Rote, and Emo Welzl. “Testing the Necklace
    Condition for Shortest Tours and Optimal Factors in the Plane.” <i>Theoretical
    Computer Science</i>. Elsevier, 1989. <a href="https://doi.org/10.1016/0304-3975(89)90133-3">https://doi.org/10.1016/0304-3975(89)90133-3</a>.
  ieee: H. Edelsbrunner, G. Rote, and E. Welzl, “Testing the necklace condition for
    shortest tours and optimal factors in the plane,” <i>Theoretical Computer Science</i>,
    vol. 66, no. 2. Elsevier, pp. 157–180, 1989.
  ista: Edelsbrunner H, Rote G, Welzl E. 1989. Testing the necklace condition for
    shortest tours and optimal factors in the plane. Theoretical Computer Science.
    66(2), 157–180.
  mla: Edelsbrunner, Herbert, et al. “Testing the Necklace Condition for Shortest
    Tours and Optimal Factors in the Plane.” <i>Theoretical Computer Science</i>,
    vol. 66, no. 2, Elsevier, 1989, pp. 157–80, doi:<a href="https://doi.org/10.1016/0304-3975(89)90133-3">10.1016/0304-3975(89)90133-3</a>.
  short: H. Edelsbrunner, G. Rote, E. Welzl, Theoretical Computer Science 66 (1989)
    157–180.
date_created: 2018-12-11T12:06:51Z
date_published: 1989-08-01T00:00:00Z
date_updated: 2022-02-11T11:15:43Z
day: '01'
doi: 10.1016/0304-3975(89)90133-3
extern: '1'
intvolume: '        66'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.sciencedirect.com/science/article/pii/0304397589901333?via%3Dihub
month: '08'
oa: 1
oa_version: Published Version
page: 157 - 180
publication: Theoretical Computer Science
publication_identifier:
  eissn:
  - 1879-2294
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
publist_id: '2041'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Testing the necklace condition for shortest tours and optimal factors in the
  plane
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 66
year: '1989'
...
---
_id: '4116'
abstract:
- lang: eng
  text: 'A straight line that intersects all members of a set S of objects in the
    real plane is called a transversal of S. Geometric transforms are described that
    reduce transversal problems for various types of objects to convex hull problems
    for points. These reductions lead to efficient algorithms for finding transversals
    which are also described. Applications of the algorithms are found in computer
    graphics: “Reproduce the line displayed by a collection of pixels”, and in statistics:
    “Find the line that minimizes the maximum distance from a collection of (weighted)
    points in the plane”.'
acknowledgement: 'The author gratefully acknowledges the criticism of an anonymous
  referee who discovered a serious flaw in an earlier version of this paper. '
article_processing_charge: No
article_type: original
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
citation:
  ama: Edelsbrunner H. Finding Transversals for Sets of Simple Geometric-Figures.
    <i>Theoretical Computer Science</i>. 1985;35(1):55-69. doi:<a href="https://doi.org/10.1016/0304-3975(85)90005-2">10.1016/0304-3975(85)90005-2</a>
  apa: Edelsbrunner, H. (1985). Finding Transversals for Sets of Simple Geometric-Figures.
    <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/0304-3975(85)90005-2">https://doi.org/10.1016/0304-3975(85)90005-2</a>
  chicago: Edelsbrunner, Herbert. “Finding Transversals for Sets of Simple Geometric-Figures.”
    <i>Theoretical Computer Science</i>. Elsevier, 1985. <a href="https://doi.org/10.1016/0304-3975(85)90005-2">https://doi.org/10.1016/0304-3975(85)90005-2</a>.
  ieee: H. Edelsbrunner, “Finding Transversals for Sets of Simple Geometric-Figures,”
    <i>Theoretical Computer Science</i>, vol. 35, no. 1. Elsevier, pp. 55–69, 1985.
  ista: Edelsbrunner H. 1985. Finding Transversals for Sets of Simple Geometric-Figures.
    Theoretical Computer Science. 35(1), 55–69.
  mla: Edelsbrunner, Herbert. “Finding Transversals for Sets of Simple Geometric-Figures.”
    <i>Theoretical Computer Science</i>, vol. 35, no. 1, Elsevier, 1985, pp. 55–69,
    doi:<a href="https://doi.org/10.1016/0304-3975(85)90005-2">10.1016/0304-3975(85)90005-2</a>.
  short: H. Edelsbrunner, Theoretical Computer Science 35 (1985) 55–69.
date_created: 2018-12-11T12:07:02Z
date_published: 1985-01-01T00:00:00Z
date_updated: 2022-01-31T11:09:26Z
day: '01'
doi: 10.1016/0304-3975(85)90005-2
extern: '1'
intvolume: '        35'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.sciencedirect.com/science/article/pii/0304397585900052?via%3Dihub
month: '01'
oa: 1
oa_version: Published Version
page: 55 - 69
publication: Theoretical Computer Science
publication_identifier:
  eissn:
  - 0304-3975
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
publist_id: '2008'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Finding Transversals for Sets of Simple Geometric-Figures
type: journal_article
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 35
year: '1985'
...
---
OA_place: publisher
OA_type: hybrid
_id: '4133'
abstract:
- lang: eng
  text: In 1979 Kirpatrick obtained a practically feasible algorithm for planar regionlocation
    working in linear space and logarithmic time, provided the regions are bounded
    by straight line segments. No algorithm requiring only linear space and log-polynomial
    time was known, so far, for general planar regionlocation, i.e. for the case where
    regions are bounded by curves more complicated than straight line segments. As
    main result of this paper such an algorithm is presented.
article_processing_charge: No
article_type: original
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Hermann
  full_name: Maurer, Hermann
  last_name: Maurer
citation:
  ama: Edelsbrunner H, Maurer H. A space-optimal solution of general region location.
    <i>Theoretical Computer Science</i>. 1981;16(3):329-336. doi:<a href="https://doi.org/10.1016/0304-3975(81)90103-1">10.1016/0304-3975(81)90103-1</a>
  apa: Edelsbrunner, H., &#38; Maurer, H. (1981). A space-optimal solution of general
    region location. <i>Theoretical Computer Science</i>. Elsevier. <a href="https://doi.org/10.1016/0304-3975(81)90103-1">https://doi.org/10.1016/0304-3975(81)90103-1</a>
  chicago: Edelsbrunner, Herbert, and Hermann Maurer. “A Space-Optimal Solution of
    General Region Location.” <i>Theoretical Computer Science</i>. Elsevier, 1981.
    <a href="https://doi.org/10.1016/0304-3975(81)90103-1">https://doi.org/10.1016/0304-3975(81)90103-1</a>.
  ieee: H. Edelsbrunner and H. Maurer, “A space-optimal solution of general region
    location,” <i>Theoretical Computer Science</i>, vol. 16, no. 3. Elsevier, pp.
    329–336, 1981.
  ista: Edelsbrunner H, Maurer H. 1981. A space-optimal solution of general region
    location. Theoretical Computer Science. 16(3), 329–336.
  mla: Edelsbrunner, Herbert, and Hermann Maurer. “A Space-Optimal Solution of General
    Region Location.” <i>Theoretical Computer Science</i>, vol. 16, no. 3, Elsevier,
    1981, pp. 329–36, doi:<a href="https://doi.org/10.1016/0304-3975(81)90103-1">10.1016/0304-3975(81)90103-1</a>.
  short: H. Edelsbrunner, H. Maurer, Theoretical Computer Science 16 (1981) 329–336.
date_created: 2018-12-11T12:07:08Z
date_published: 1981-01-01T00:00:00Z
date_updated: 2024-10-16T14:45:11Z
day: '01'
doi: 10.1016/0304-3975(81)90103-1
extern: '1'
intvolume: '        16'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.sciencedirect.com/science/article/pii/0304397581901031
month: '01'
oa: 1
oa_version: Published Version
page: 329 - 336
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
publisher: Elsevier
publist_id: '1989'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A space-optimal solution of general region location
type: journal_article
user_id: 0043cee0-e5fc-11ee-9736-f83bc23afbf0
volume: 16
year: '1981'
...
