---
_id: '31847'
abstract:
- lang: eng
  text: "The famous $k$-Server Problem covers plenty of resource allocation scenarios,
    and several variations have been studied extensively for decades. However, to
    the best of our knowledge, no research has considered the problem if the servers
    are not identical and requests can express which specific servers should serve
    them. Therefore, we present a new model generalizing the $k$-Server Problem by
    *preferences* of the requests and proceed to study it in a uniform metric space
    for deterministic online algorithms (the special case of paging).\r\n\r\nIn our
    model, requests can either demand to be answered by any server (*general requests*)
    or by a specific one (*specific requests*). If only general requests appear, the
    instance is one of the original $k$-Server Problem, and a lower bound for the
    competitive ratio of $k$ applies. If only specific requests appear, a solution
    with a competitive ratio of $1$ becomes trivial since there is no freedom regarding
    the servers' movements. Perhaps counter-intuitively, we show that if both kinds
    of requests appear, the lower bound raises to $2k-1$.\r\n\r\nWe study deterministic
    online algorithms in uniform metrics and present two algorithms. The first one
    has an adaptive competitive ratio dependent on the frequency of specific requests.
    It achieves a worst-case competitive ratio of $3k-2$ while it is optimal when
    only general or only specific requests appear (competitive ratio of $k$ and $1$,
    respectively). The second has a fixed close-to-optimal worst-case competitive
    ratio of $2k+14$. For the first algorithm, we show a lower bound of $3k-2$, while
    the second algorithm has a lower bound of $2k-1$ when only general requests appear.\r\n
    \   \r\nThe two algorithms differ in only one behavioral rule for each server
    that significantly influences the competitive ratio. Each server acting according
    to the rule allows approaching the worst-case lower bound, while it implies an
    increased lower bound for $k$-Server instances. In other words, there is a trade-off
    between performing well against instances of the $k$-Server Problem and instances
    containing specific requests. We also show that no deterministic online algorithm
    can be optimal for both kinds of instances simultaneously."
author:
- first_name: Jannik
  full_name: Castenow, Jannik
  id: '38705'
  last_name: Castenow
- first_name: Björn
  full_name: Feldkord, Björn
  id: '22704'
  last_name: Feldkord
- first_name: Till
  full_name: Knollmann, Till
  id: '39241'
  last_name: Knollmann
  orcid: 0000-0003-2014-4696
- first_name: Manuel
  full_name: Malatyali, Manuel
  id: '41265'
  last_name: Malatyali
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
citation:
  ama: 'Castenow J, Feldkord B, Knollmann T, Malatyali M, Meyer auf der Heide F. The
    k-Server with Preferences Problem. In: <i>Proceedings of the 34th ACM Symposium
    on Parallelism in Algorithms and Architectures</i>. Association for Computing
    Machinery; 2022:345-356. doi:<a href="https://doi.org/10.1145/3490148.3538595">10.1145/3490148.3538595</a>'
  apa: Castenow, J., Feldkord, B., Knollmann, T., Malatyali, M., &#38; Meyer auf der
    Heide, F. (2022). The k-Server with Preferences Problem. <i>Proceedings of the
    34th ACM Symposium on Parallelism in Algorithms and Architectures</i>, 345–356.
    <a href="https://doi.org/10.1145/3490148.3538595">https://doi.org/10.1145/3490148.3538595</a>
  bibtex: '@inproceedings{Castenow_Feldkord_Knollmann_Malatyali_Meyer auf der Heide_2022,
    title={The k-Server with Preferences Problem}, DOI={<a href="https://doi.org/10.1145/3490148.3538595">10.1145/3490148.3538595</a>},
    booktitle={Proceedings of the 34th ACM Symposium on Parallelism in Algorithms
    and Architectures}, publisher={Association for Computing Machinery}, author={Castenow,
    Jannik and Feldkord, Björn and Knollmann, Till and Malatyali, Manuel and Meyer
    auf der Heide, Friedhelm}, year={2022}, pages={345–356} }'
  chicago: Castenow, Jannik, Björn Feldkord, Till Knollmann, Manuel Malatyali, and
    Friedhelm Meyer auf der Heide. “The K-Server with Preferences Problem.” In <i>Proceedings
    of the 34th ACM Symposium on Parallelism in Algorithms and Architectures</i>,
    345–56. Association for Computing Machinery, 2022. <a href="https://doi.org/10.1145/3490148.3538595">https://doi.org/10.1145/3490148.3538595</a>.
  ieee: 'J. Castenow, B. Feldkord, T. Knollmann, M. Malatyali, and F. Meyer auf der
    Heide, “The k-Server with Preferences Problem,” in <i>Proceedings of the 34th
    ACM Symposium on Parallelism in Algorithms and Architectures</i>, 2022, pp. 345–356,
    doi: <a href="https://doi.org/10.1145/3490148.3538595">10.1145/3490148.3538595</a>.'
  mla: Castenow, Jannik, et al. “The K-Server with Preferences Problem.” <i>Proceedings
    of the 34th ACM Symposium on Parallelism in Algorithms and Architectures</i>,
    Association for Computing Machinery, 2022, pp. 345–56, doi:<a href="https://doi.org/10.1145/3490148.3538595">10.1145/3490148.3538595</a>.
  short: 'J. Castenow, B. Feldkord, T. Knollmann, M. Malatyali, F. Meyer auf der Heide,
    in: Proceedings of the 34th ACM Symposium on Parallelism in Algorithms and Architectures,
    Association for Computing Machinery, 2022, pp. 345–356.'
date_created: 2022-06-10T09:06:42Z
date_updated: 2022-08-02T08:07:30Z
department:
- _id: '63'
doi: 10.1145/3490148.3538595
external_id:
  arxiv:
  - '2205.11102'
keyword:
- K-Server Problem
- Heterogeneity
- Online Caching
language:
- iso: eng
page: 345-356
project:
- _id: '1'
  name: 'SFB 901: SFB 901'
- _id: '2'
  name: 'SFB 901 - A: SFB 901 - Project Area A'
- _id: '5'
  name: 'SFB 901 - A1: SFB 901 - Subproject A1'
publication: Proceedings of the 34th ACM Symposium on Parallelism in Algorithms and
  Architectures
publication_identifier:
  isbn:
  - '9781450391467'
publisher: Association for Computing Machinery
status: public
title: The k-Server with Preferences Problem
type: conference
user_id: '39241'
year: '2022'
...
---
_id: '34040'
abstract:
- lang: eng
  text: "<jats:p>Consider the practical goal of making a desired action profile played,\r\n\r\nwhen
    the planner can only change the payoffs, bound by \r\n\r\nstringent constraints.\r\n\r\nApplications
    include motivating people\r\n\r\nto choose the closest school, the closest subway
    station, or to coordinate\r\n\r\non a communication protocol or an investment
    strategy.\r\n\r\nEmploying subsidies and tolls, we adjust the game so that choosing
    this predefined action profile\r\n\r\nbecomes strictly dominant. \r\n\r\nInspired
    mainly by the work of Monderer and Tennenholtz,\r\n\r\nwhere the promised subsidies
    do not materialise in the not played\r\n\r\nprofiles, we provide a fair and individually
    rational game\r\n\r\nadjustment, such that the total outside investments sum up\r\n\r\nto
    zero at any profile, thereby facilitating easy and frequent\r\n\r\nusage of our
    adjustment without bearing costs, even if some\r\n\r\nplayers behave unexpectedly.
    The resultant action profile itself needs no\r\n\r\nadjustment. Importantly, we
    also prove that our adjustment minimises \r\n\r\nthe general transfer among all
    such adjustments, counting the total subsidising and taxation.</jats:p>"
author:
- first_name: Gleb
  full_name: Polevoy, Gleb
  id: '83983'
  last_name: Polevoy
- first_name: Marcin
  full_name: Dziubiński, Marcin
  last_name: Dziubiński
citation:
  ama: 'Polevoy G, Dziubiński M. Fair, Individually Rational and Cheap Adjustment.
    In: De Raedt L, ed. <i>Proceedings of the Thirty-First International Joint Conference
    on Artificial Intelligence</i>. International Joint Conferences on Artificial
    Intelligence Organization; 2022. doi:<a href="https://doi.org/10.24963/ijcai.2022/64">10.24963/ijcai.2022/64</a>'
  apa: Polevoy, G., &#38; Dziubiński, M. (2022). Fair, Individually Rational and Cheap
    Adjustment. In L. De Raedt (Ed.), <i>Proceedings of the Thirty-First International
    Joint Conference on Artificial Intelligence</i>. International Joint Conferences
    on Artificial Intelligence Organization. <a href="https://doi.org/10.24963/ijcai.2022/64">https://doi.org/10.24963/ijcai.2022/64</a>
  bibtex: '@inproceedings{Polevoy_Dziubiński_2022, title={Fair, Individually Rational
    and Cheap Adjustment}, DOI={<a href="https://doi.org/10.24963/ijcai.2022/64">10.24963/ijcai.2022/64</a>},
    booktitle={Proceedings of the Thirty-First International Joint Conference on Artificial
    Intelligence}, publisher={International Joint Conferences on Artificial Intelligence
    Organization}, author={Polevoy, Gleb and Dziubiński, Marcin}, editor={De Raedt,
    Luc}, year={2022} }'
  chicago: Polevoy, Gleb, and Marcin Dziubiński. “Fair, Individually Rational and
    Cheap Adjustment.” In <i>Proceedings of the Thirty-First International Joint Conference
    on Artificial Intelligence</i>, edited by Luc De Raedt. International Joint Conferences
    on Artificial Intelligence Organization, 2022. <a href="https://doi.org/10.24963/ijcai.2022/64">https://doi.org/10.24963/ijcai.2022/64</a>.
  ieee: 'G. Polevoy and M. Dziubiński, “Fair, Individually Rational and Cheap Adjustment,”
    in <i>Proceedings of the Thirty-First International Joint Conference on Artificial
    Intelligence</i>, Vienna, 2022, doi: <a href="https://doi.org/10.24963/ijcai.2022/64">10.24963/ijcai.2022/64</a>.'
  mla: Polevoy, Gleb, and Marcin Dziubiński. “Fair, Individually Rational and Cheap
    Adjustment.” <i>Proceedings of the Thirty-First International Joint Conference
    on Artificial Intelligence</i>, edited by Luc De Raedt, International Joint Conferences
    on Artificial Intelligence Organization, 2022, doi:<a href="https://doi.org/10.24963/ijcai.2022/64">10.24963/ijcai.2022/64</a>.
  short: 'G. Polevoy, M. Dziubiński, in: L. De Raedt (Ed.), Proceedings of the Thirty-First
    International Joint Conference on Artificial Intelligence, International Joint
    Conferences on Artificial Intelligence Organization, 2022.'
conference:
  end_date: 2022-07-29
  location: Vienna
  name: THE 31ST INTERNATIONAL JOINT CONFERENCE ON ARTIFICIAL INTELLIGENCE
  start_date: 2022-07-23
date_created: 2022-11-08T16:53:31Z
date_updated: 2022-11-08T17:34:36Z
department:
- _id: '63'
- _id: '541'
doi: 10.24963/ijcai.2022/64
editor:
- first_name: Luc
  full_name: De Raedt, Luc
  last_name: De Raedt
keyword:
- adjustment
- strictly dominant
- fairness
- individually rational
- transfer
- tax
- subsidy
language:
- iso: eng
main_file_link:
- url: https://www.ijcai.org/proceedings/2022/64
publication: Proceedings of the Thirty-First International Joint Conference on Artificial
  Intelligence
publication_status: published
publisher: International Joint Conferences on Artificial Intelligence Organization
status: public
title: Fair, Individually Rational and Cheap Adjustment
type: conference
user_id: '83983'
year: '2022'
...
---
_id: '33085'
author:
- first_name: Leah
  full_name: Epstein, Leah
  last_name: Epstein
- first_name: Alexandra
  full_name: Lassota, Alexandra
  last_name: Lassota
- first_name: Asaf
  full_name: Levin, Asaf
  last_name: Levin
- first_name: Marten
  full_name: Maack, Marten
  id: '88252'
  last_name: Maack
- first_name: Lars
  full_name: Rohwedder, Lars
  last_name: Rohwedder
citation:
  ama: 'Epstein L, Lassota A, Levin A, Maack M, Rohwedder L. Cardinality Constrained
    Scheduling in Online Models. In: Berenbrink P, Monmege B, eds. <i>39th International
    Symposium on Theoretical Aspects of Computer Science, STACS 2022, March 15-18,
    2022, Marseille, France (Virtual Conference)</i>. Vol 219. LIPIcs. Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik; 2022:28:1–28:15. doi:<a href="https://doi.org/10.4230/LIPIcs.STACS.2022.28">10.4230/LIPIcs.STACS.2022.28</a>'
  apa: Epstein, L., Lassota, A., Levin, A., Maack, M., &#38; Rohwedder, L. (2022).
    Cardinality Constrained Scheduling in Online Models. In P. Berenbrink &#38; B.
    Monmege (Eds.), <i>39th International Symposium on Theoretical Aspects of Computer
    Science, STACS 2022, March 15-18, 2022, Marseille, France (Virtual Conference)</i>
    (Vol. 219, p. 28:1–28:15). Schloss Dagstuhl - Leibniz-Zentrum für Informatik.
    <a href="https://doi.org/10.4230/LIPIcs.STACS.2022.28">https://doi.org/10.4230/LIPIcs.STACS.2022.28</a>
  bibtex: '@inproceedings{Epstein_Lassota_Levin_Maack_Rohwedder_2022, series={LIPIcs},
    title={Cardinality Constrained Scheduling in Online Models}, volume={219}, DOI={<a
    href="https://doi.org/10.4230/LIPIcs.STACS.2022.28">10.4230/LIPIcs.STACS.2022.28</a>},
    booktitle={39th International Symposium on Theoretical Aspects of Computer Science,
    STACS 2022, March 15-18, 2022, Marseille, France (Virtual Conference)}, publisher={Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik}, author={Epstein, Leah and Lassota,
    Alexandra and Levin, Asaf and Maack, Marten and Rohwedder, Lars}, editor={Berenbrink,
    Petra and Monmege, Benjamin}, year={2022}, pages={28:1–28:15}, collection={LIPIcs}
    }'
  chicago: Epstein, Leah, Alexandra Lassota, Asaf Levin, Marten Maack, and Lars Rohwedder.
    “Cardinality Constrained Scheduling in Online Models.” In <i>39th International
    Symposium on Theoretical Aspects of Computer Science, STACS 2022, March 15-18,
    2022, Marseille, France (Virtual Conference)</i>, edited by Petra Berenbrink and
    Benjamin Monmege, 219:28:1–28:15. LIPIcs. Schloss Dagstuhl - Leibniz-Zentrum für
    Informatik, 2022. <a href="https://doi.org/10.4230/LIPIcs.STACS.2022.28">https://doi.org/10.4230/LIPIcs.STACS.2022.28</a>.
  ieee: 'L. Epstein, A. Lassota, A. Levin, M. Maack, and L. Rohwedder, “Cardinality
    Constrained Scheduling in Online Models,” in <i>39th International Symposium on
    Theoretical Aspects of Computer Science, STACS 2022, March 15-18, 2022, Marseille,
    France (Virtual Conference)</i>, 2022, vol. 219, p. 28:1–28:15, doi: <a href="https://doi.org/10.4230/LIPIcs.STACS.2022.28">10.4230/LIPIcs.STACS.2022.28</a>.'
  mla: Epstein, Leah, et al. “Cardinality Constrained Scheduling in Online Models.”
    <i>39th International Symposium on Theoretical Aspects of Computer Science, STACS
    2022, March 15-18, 2022, Marseille, France (Virtual Conference)</i>, edited by
    Petra Berenbrink and Benjamin Monmege, vol. 219, Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, 2022, p. 28:1–28:15, doi:<a href="https://doi.org/10.4230/LIPIcs.STACS.2022.28">10.4230/LIPIcs.STACS.2022.28</a>.
  short: 'L. Epstein, A. Lassota, A. Levin, M. Maack, L. Rohwedder, in: P. Berenbrink,
    B. Monmege (Eds.), 39th International Symposium on Theoretical Aspects of Computer
    Science, STACS 2022, March 15-18, 2022, Marseille, France (Virtual Conference),
    Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022, p. 28:1–28:15.'
date_created: 2022-08-23T08:10:36Z
date_updated: 2022-11-08T16:34:32Z
department:
- _id: '63'
doi: 10.4230/LIPIcs.STACS.2022.28
editor:
- first_name: Petra
  full_name: Berenbrink, Petra
  last_name: Berenbrink
- first_name: Benjamin
  full_name: Monmege, Benjamin
  last_name: Monmege
intvolume: '       219'
language:
- iso: eng
page: 28:1–28:15
project:
- _id: '16'
  name: 'SFB 901 - C4: SFB 901 - Subproject C4'
- _id: '1'
  name: 'SFB 901: SFB 901'
- _id: '4'
  name: 'SFB 901 - C: SFB 901 - Project Area C'
publication: 39th International Symposium on Theoretical Aspects of Computer Science,
  STACS 2022, March 15-18, 2022, Marseille, France (Virtual Conference)
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
series_title: LIPIcs
status: public
title: Cardinality Constrained Scheduling in Online Models
type: conference
user_id: '88252'
volume: 219
year: '2022'
...
---
_id: '33491'
author:
- first_name: Marten
  full_name: Maack, Marten
  id: '88252'
  last_name: Maack
- first_name: Simon
  full_name: Pukrop, Simon
  id: '44428'
  last_name: Pukrop
- first_name: Anna Rodriguez
  full_name: Rasmussen, Anna Rodriguez
  last_name: Rasmussen
citation:
  ama: 'Maack M, Pukrop S, Rasmussen AR. (In-)Approximability Results for Interval,
    Resource Restricted, and Low Rank Scheduling. In: Chechik S, Navarro G, Rotenberg
    E, Herman G, eds. <i>30th Annual European Symposium on Algorithms, ESA 2022, September
    5-9, 2022, Berlin/Potsdam, Germany</i>. Vol 244. LIPIcs. Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik; 2022:77:1–77:13. doi:<a href="https://doi.org/10.4230/LIPIcs.ESA.2022.77">10.4230/LIPIcs.ESA.2022.77</a>'
  apa: Maack, M., Pukrop, S., &#38; Rasmussen, A. R. (2022). (In-)Approximability
    Results for Interval, Resource Restricted, and Low Rank Scheduling. In S. Chechik,
    G. Navarro, E. Rotenberg, &#38; G. Herman (Eds.), <i>30th Annual European Symposium
    on Algorithms, ESA 2022, September 5-9, 2022, Berlin/Potsdam, Germany</i> (Vol.
    244, p. 77:1–77:13). Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.ESA.2022.77">https://doi.org/10.4230/LIPIcs.ESA.2022.77</a>
  bibtex: '@inproceedings{Maack_Pukrop_Rasmussen_2022, series={LIPIcs}, title={(In-)Approximability
    Results for Interval, Resource Restricted, and Low Rank Scheduling}, volume={244},
    DOI={<a href="https://doi.org/10.4230/LIPIcs.ESA.2022.77">10.4230/LIPIcs.ESA.2022.77</a>},
    booktitle={30th Annual European Symposium on Algorithms, ESA 2022, September 5-9,
    2022, Berlin/Potsdam, Germany}, publisher={Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik}, author={Maack, Marten and Pukrop, Simon and Rasmussen, Anna Rodriguez},
    editor={Chechik, Shiri and Navarro, Gonzalo and Rotenberg, Eva and Herman, Grzegorz},
    year={2022}, pages={77:1–77:13}, collection={LIPIcs} }'
  chicago: Maack, Marten, Simon Pukrop, and Anna Rodriguez Rasmussen. “(In-)Approximability
    Results for Interval, Resource Restricted, and Low Rank Scheduling.” In <i>30th
    Annual European Symposium on Algorithms, ESA 2022, September 5-9, 2022, Berlin/Potsdam,
    Germany</i>, edited by Shiri Chechik, Gonzalo Navarro, Eva Rotenberg, and Grzegorz
    Herman, 244:77:1–77:13. LIPIcs. Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2022. <a href="https://doi.org/10.4230/LIPIcs.ESA.2022.77">https://doi.org/10.4230/LIPIcs.ESA.2022.77</a>.
  ieee: 'M. Maack, S. Pukrop, and A. R. Rasmussen, “(In-)Approximability Results for
    Interval, Resource Restricted, and Low Rank Scheduling,” in <i>30th Annual European
    Symposium on Algorithms, ESA 2022, September 5-9, 2022, Berlin/Potsdam, Germany</i>,
    2022, vol. 244, p. 77:1–77:13, doi: <a href="https://doi.org/10.4230/LIPIcs.ESA.2022.77">10.4230/LIPIcs.ESA.2022.77</a>.'
  mla: Maack, Marten, et al. “(In-)Approximability Results for Interval, Resource
    Restricted, and Low Rank Scheduling.” <i>30th Annual European Symposium on Algorithms,
    ESA 2022, September 5-9, 2022, Berlin/Potsdam, Germany</i>, edited by Shiri Chechik
    et al., vol. 244, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022, p.
    77:1–77:13, doi:<a href="https://doi.org/10.4230/LIPIcs.ESA.2022.77">10.4230/LIPIcs.ESA.2022.77</a>.
  short: 'M. Maack, S. Pukrop, A.R. Rasmussen, in: S. Chechik, G. Navarro, E. Rotenberg,
    G. Herman (Eds.), 30th Annual European Symposium on Algorithms, ESA 2022, September
    5-9, 2022, Berlin/Potsdam, Germany, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
    2022, p. 77:1–77:13.'
date_created: 2022-09-27T13:06:05Z
date_updated: 2022-11-18T10:14:14Z
department:
- _id: '63'
doi: 10.4230/LIPIcs.ESA.2022.77
editor:
- first_name: Shiri
  full_name: Chechik, Shiri
  last_name: Chechik
- first_name: Gonzalo
  full_name: Navarro, Gonzalo
  last_name: Navarro
- first_name: Eva
  full_name: Rotenberg, Eva
  last_name: Rotenberg
- first_name: Grzegorz
  full_name: Herman, Grzegorz
  last_name: Herman
intvolume: '       244'
language:
- iso: eng
page: 77:1–77:13
project:
- _id: '1'
  name: 'SFB 901: SFB 901'
- _id: '16'
  name: 'SFB 901 - C4: SFB 901 - Subproject C4'
- _id: '4'
  name: 'SFB 901 - C: SFB 901 - Project Area C'
publication: 30th Annual European Symposium on Algorithms, ESA 2022, September 5-9,
  2022, Berlin/Potsdam, Germany
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
series_title: LIPIcs
status: public
title: (In-)Approximability Results for Interval, Resource Restricted, and Low Rank
  Scheduling
type: conference
user_id: '477'
volume: 244
year: '2022'
...
---
_id: '31479'
author:
- first_name: Surender
  full_name: Baswana, Surender
  last_name: Baswana
- first_name: Shiv
  full_name: Gupta, Shiv
  last_name: Gupta
- first_name: Till
  full_name: Knollmann, Till
  id: '39241'
  last_name: Knollmann
  orcid: 0000-0003-2014-4696
citation:
  ama: Baswana S, Gupta S, Knollmann T. Mincut Sensitivity Data Structures for the
    Insertion of an Edge. <i>Algorithmica</i>. Published online 2022. doi:<a href="https://doi.org/10.1007/s00453-022-00978-0">10.1007/s00453-022-00978-0</a>
  apa: Baswana, S., Gupta, S., &#38; Knollmann, T. (2022). Mincut Sensitivity Data
    Structures for the Insertion of an Edge. <i>Algorithmica</i>. <a href="https://doi.org/10.1007/s00453-022-00978-0">https://doi.org/10.1007/s00453-022-00978-0</a>
  bibtex: '@article{Baswana_Gupta_Knollmann_2022, title={Mincut Sensitivity Data Structures
    for the Insertion of an Edge}, DOI={<a href="https://doi.org/10.1007/s00453-022-00978-0">10.1007/s00453-022-00978-0</a>},
    journal={Algorithmica}, publisher={Springer Science and Business Media LLC}, author={Baswana,
    Surender and Gupta, Shiv and Knollmann, Till}, year={2022} }'
  chicago: Baswana, Surender, Shiv Gupta, and Till Knollmann. “Mincut Sensitivity
    Data Structures for the Insertion of an Edge.” <i>Algorithmica</i>, 2022. <a href="https://doi.org/10.1007/s00453-022-00978-0">https://doi.org/10.1007/s00453-022-00978-0</a>.
  ieee: 'S. Baswana, S. Gupta, and T. Knollmann, “Mincut Sensitivity Data Structures
    for the Insertion of an Edge,” <i>Algorithmica</i>, 2022, doi: <a href="https://doi.org/10.1007/s00453-022-00978-0">10.1007/s00453-022-00978-0</a>.'
  mla: Baswana, Surender, et al. “Mincut Sensitivity Data Structures for the Insertion
    of an Edge.” <i>Algorithmica</i>, Springer Science and Business Media LLC, 2022,
    doi:<a href="https://doi.org/10.1007/s00453-022-00978-0">10.1007/s00453-022-00978-0</a>.
  short: S. Baswana, S. Gupta, T. Knollmann, Algorithmica (2022).
date_created: 2022-05-27T10:09:24Z
date_updated: 2022-05-27T10:14:27Z
department:
- _id: '63'
doi: 10.1007/s00453-022-00978-0
genbank:
- tillk
keyword:
- Applied Mathematics
- Computer Science Applications
- General Computer Science
language:
- iso: eng
project:
- _id: '1'
  name: 'SFB 901: SFB 901'
- _id: '2'
  name: 'SFB 901 - A: SFB 901 - Project Area A'
- _id: '5'
  name: 'SFB 901 - A1: SFB 901 - Subproject A1'
publication: Algorithmica
publication_identifier:
  issn:
  - 0178-4617
  - 1432-0541
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Mincut Sensitivity Data Structures for the Insertion of an Edge
type: journal_article
user_id: '39241'
year: '2022'
...
---
_id: '29872'
author:
- first_name: Marten
  full_name: Maack, Marten
  id: '88252'
  last_name: Maack
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
- first_name: Simon
  full_name: Pukrop, Simon
  id: '44428'
  last_name: Pukrop
citation:
  ama: 'Maack M, Meyer auf der Heide F, Pukrop S. Server Cloud Scheduling. In: <i>Approximation
    and Online Algorithms</i>. Springer International Publishing; 2022. doi:<a href="https://doi.org/10.1007/978-3-030-92702-8_10">10.1007/978-3-030-92702-8_10</a>'
  apa: Maack, M., Meyer auf der Heide, F., &#38; Pukrop, S. (2022). Server Cloud Scheduling.
    In <i>Approximation and Online Algorithms</i>. Springer International Publishing.
    <a href="https://doi.org/10.1007/978-3-030-92702-8_10">https://doi.org/10.1007/978-3-030-92702-8_10</a>
  bibtex: '@inbook{Maack_Meyer auf der Heide_Pukrop_2022, place={Cham}, title={Server
    Cloud Scheduling}, DOI={<a href="https://doi.org/10.1007/978-3-030-92702-8_10">10.1007/978-3-030-92702-8_10</a>},
    booktitle={Approximation and Online Algorithms}, publisher={Springer International
    Publishing}, author={Maack, Marten and Meyer auf der Heide, Friedhelm and Pukrop,
    Simon}, year={2022} }'
  chicago: 'Maack, Marten, Friedhelm Meyer auf der Heide, and Simon Pukrop. “Server
    Cloud Scheduling.” In <i>Approximation and Online Algorithms</i>. Cham: Springer
    International Publishing, 2022. <a href="https://doi.org/10.1007/978-3-030-92702-8_10">https://doi.org/10.1007/978-3-030-92702-8_10</a>.'
  ieee: 'M. Maack, F. Meyer auf der Heide, and S. Pukrop, “Server Cloud Scheduling,”
    in <i>Approximation and Online Algorithms</i>, Cham: Springer International Publishing,
    2022.'
  mla: Maack, Marten, et al. “Server Cloud Scheduling.” <i>Approximation and Online
    Algorithms</i>, Springer International Publishing, 2022, doi:<a href="https://doi.org/10.1007/978-3-030-92702-8_10">10.1007/978-3-030-92702-8_10</a>.
  short: 'M. Maack, F. Meyer auf der Heide, S. Pukrop, in: Approximation and Online
    Algorithms, Springer International Publishing, Cham, 2022.'
date_created: 2022-02-18T09:31:54Z
date_updated: 2022-09-27T15:03:13Z
department:
- _id: '63'
doi: 10.1007/978-3-030-92702-8_10
language:
- iso: eng
place: Cham
project:
- _id: '1'
  name: 'SFB 901: SFB 901'
- _id: '4'
  name: 'SFB 901 - C: SFB 901 - Project Area C'
- _id: '16'
  name: 'SFB 901 - C4: SFB 901 - Subproject C4'
publication: Approximation and Online Algorithms
publication_identifier:
  isbn:
  - '9783030927011'
  - '9783030927028'
  issn:
  - 0302-9743
  - 1611-3349
publication_status: published
publisher: Springer International Publishing
status: public
title: Server Cloud Scheduling
type: book_chapter
user_id: '44428'
year: '2022'
...
---
_id: '21096'
abstract:
- lang: eng
  text: While many research in distributed computing has covered solutions for self-stabilizing
    computing and topologies, there is far less work on self-stabilization for distributed
    data structures. However, when peers in peer-to-peer networks crash, a distributed
    data structure may not remain intact. We present a self-stabilizing protocol for
    a distributed data structure called the Hashed Patricia Trie (Kniesburges and
    Scheideler WALCOM'11) that enables efficient prefix search on a set of keys. The
    data structure has many applications while offering low overhead and efficient
    operations when embedded on top of a Distributed Hash Table. Especially, longest
    prefix matching for x can be done in O(log |x|) hash table read accesses. We show
    how to maintain the structure in a self-stabilizing way, while assuring a low
    overhead in a legal state and an asymptotically optimal memory demand of O(d)
    bits, where d is the number of bits needed for storing all keys.
article_number: '104697'
author:
- first_name: Till
  full_name: Knollmann, Till
  id: '39241'
  last_name: Knollmann
  orcid: 0000-0003-2014-4696
- first_name: Christian
  full_name: Scheideler, Christian
  id: '20792'
  last_name: Scheideler
citation:
  ama: Knollmann T, Scheideler C. A self-stabilizing Hashed Patricia Trie. <i>Information
    and Computation</i>. Published online 2022. doi:<a href="https://doi.org/10.1016/j.ic.2021.104697">10.1016/j.ic.2021.104697</a>
  apa: Knollmann, T., &#38; Scheideler, C. (2022). A self-stabilizing Hashed Patricia
    Trie. <i>Information and Computation</i>, Article 104697. <a href="https://doi.org/10.1016/j.ic.2021.104697">https://doi.org/10.1016/j.ic.2021.104697</a>
  bibtex: '@article{Knollmann_Scheideler_2022, title={A self-stabilizing Hashed Patricia
    Trie}, DOI={<a href="https://doi.org/10.1016/j.ic.2021.104697">10.1016/j.ic.2021.104697</a>},
    number={104697}, journal={Information and Computation}, author={Knollmann, Till
    and Scheideler, Christian}, year={2022} }'
  chicago: Knollmann, Till, and Christian Scheideler. “A Self-Stabilizing Hashed Patricia
    Trie.” <i>Information and Computation</i>, 2022. <a href="https://doi.org/10.1016/j.ic.2021.104697">https://doi.org/10.1016/j.ic.2021.104697</a>.
  ieee: 'T. Knollmann and C. Scheideler, “A self-stabilizing Hashed Patricia Trie,”
    <i>Information and Computation</i>, Art. no. 104697, 2022, doi: <a href="https://doi.org/10.1016/j.ic.2021.104697">10.1016/j.ic.2021.104697</a>.'
  mla: Knollmann, Till, and Christian Scheideler. “A Self-Stabilizing Hashed Patricia
    Trie.” <i>Information and Computation</i>, 104697, 2022, doi:<a href="https://doi.org/10.1016/j.ic.2021.104697">10.1016/j.ic.2021.104697</a>.
  short: T. Knollmann, C. Scheideler, Information and Computation (2022).
date_created: 2021-01-29T09:39:40Z
date_updated: 2023-03-27T07:56:48Z
department:
- _id: '63'
- _id: '79'
doi: 10.1016/j.ic.2021.104697
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '5'
  name: SFB 901 - Subproject A1
publication: Information and Computation
publication_identifier:
  issn:
  - 0890-5401
publication_status: published
status: public
title: A self-stabilizing Hashed Patricia Trie
type: journal_article
user_id: '15504'
year: '2022'
...
---
_id: '23730'
author:
- first_name: Jannik
  full_name: Castenow, Jannik
  id: '38705'
  last_name: Castenow
- first_name: Jonas
  full_name: Harbig, Jonas
  id: '47213'
  last_name: Harbig
- first_name: Daniel
  full_name: Jung, Daniel
  id: '37827'
  last_name: Jung
- first_name: Till
  full_name: Knollmann, Till
  id: '39241'
  last_name: Knollmann
  orcid: 0000-0003-2014-4696
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
citation:
  ama: 'Castenow J, Harbig J, Jung D, Knollmann T, Meyer auf der Heide F. Gathering
    a Euclidean Closed Chain of Robots in Linear Time. In: Gasieniec L, Klasing R,
    Radzik T, eds. <i>Proceedings of the 17th International Symposium on Algorithms
    and Experiments for Wireless Sensor Networks (ALGOSENSORS)</i>. Vol 12961. LNCS.
    Springer; 2021:29-44. doi:<a href="https://doi.org/10.1007/978-3-030-89240-1_3">10.1007/978-3-030-89240-1_3</a>'
  apa: Castenow, J., Harbig, J., Jung, D., Knollmann, T., &#38; Meyer auf der Heide,
    F. (2021). Gathering a Euclidean Closed Chain of Robots in Linear Time. In L.
    Gasieniec, R. Klasing, &#38; T. Radzik (Eds.), <i>Proceedings of the 17th International
    Symposium on Algorithms and Experiments for Wireless Sensor Networks (ALGOSENSORS)</i>
    (Vol. 12961, pp. 29–44). Springer. <a href="https://doi.org/10.1007/978-3-030-89240-1_3">https://doi.org/10.1007/978-3-030-89240-1_3</a>
  bibtex: '@inproceedings{Castenow_Harbig_Jung_Knollmann_Meyer auf der Heide_2021,
    series={LNCS}, title={Gathering a Euclidean Closed Chain of Robots in Linear Time},
    volume={12961}, DOI={<a href="https://doi.org/10.1007/978-3-030-89240-1_3">10.1007/978-3-030-89240-1_3</a>},
    booktitle={Proceedings of the 17th International Symposium on Algorithms and Experiments
    for Wireless Sensor Networks (ALGOSENSORS)}, publisher={Springer}, author={Castenow,
    Jannik and Harbig, Jonas and Jung, Daniel and Knollmann, Till and Meyer auf der
    Heide, Friedhelm}, editor={Gasieniec, Leszek and Klasing, Ralf and Radzik, Tomasz},
    year={2021}, pages={29–44}, collection={LNCS} }'
  chicago: Castenow, Jannik, Jonas Harbig, Daniel Jung, Till Knollmann, and Friedhelm
    Meyer auf der Heide. “Gathering a Euclidean Closed Chain of Robots in Linear Time.”
    In <i>Proceedings of the 17th International Symposium on Algorithms and Experiments
    for Wireless Sensor Networks (ALGOSENSORS)</i>, edited by Leszek Gasieniec, Ralf
    Klasing, and Tomasz Radzik, 12961:29–44. LNCS. Springer, 2021. <a href="https://doi.org/10.1007/978-3-030-89240-1_3">https://doi.org/10.1007/978-3-030-89240-1_3</a>.
  ieee: 'J. Castenow, J. Harbig, D. Jung, T. Knollmann, and F. Meyer auf der Heide,
    “Gathering a Euclidean Closed Chain of Robots in Linear Time,” in <i>Proceedings
    of the 17th International Symposium on Algorithms and Experiments for Wireless
    Sensor Networks (ALGOSENSORS)</i>, Lissabon, 2021, vol. 12961, pp. 29–44, doi:
    <a href="https://doi.org/10.1007/978-3-030-89240-1_3">10.1007/978-3-030-89240-1_3</a>.'
  mla: Castenow, Jannik, et al. “Gathering a Euclidean Closed Chain of Robots in Linear
    Time.” <i>Proceedings of the 17th International Symposium on Algorithms and Experiments
    for Wireless Sensor Networks (ALGOSENSORS)</i>, edited by Leszek Gasieniec et
    al., vol. 12961, Springer, 2021, pp. 29–44, doi:<a href="https://doi.org/10.1007/978-3-030-89240-1_3">10.1007/978-3-030-89240-1_3</a>.
  short: 'J. Castenow, J. Harbig, D. Jung, T. Knollmann, F. Meyer auf der Heide, in:
    L. Gasieniec, R. Klasing, T. Radzik (Eds.), Proceedings of the 17th International
    Symposium on Algorithms and Experiments for Wireless Sensor Networks (ALGOSENSORS),
    Springer, 2021, pp. 29–44.'
conference:
  end_date: 2021-09-10
  location: Lissabon
  name: 17th International Symposium on Algorithms and Experiments for Wireless Sensor
    Networks (ALGOSENSORS) 2021
  start_date: 2021-09-09
date_created: 2021-09-03T09:01:25Z
date_updated: 2022-01-06T06:55:58Z
department:
- _id: '63'
doi: 10.1007/978-3-030-89240-1_3
editor:
- first_name: Leszek
  full_name: Gasieniec, Leszek
  last_name: Gasieniec
- first_name: Ralf
  full_name: Klasing, Ralf
  last_name: Klasing
- first_name: Tomasz
  full_name: Radzik, Tomasz
  last_name: Radzik
external_id:
  arxiv:
  - '2010.04424'
intvolume: '     12961'
language:
- iso: eng
page: 29 - 44
project:
- _id: '106'
  name: 'Algorithmen für Schwarmrobotik: Verteiltes Rechnen trifft Dynamische Systeme'
publication: Proceedings of the 17th International Symposium on Algorithms and Experiments
  for Wireless Sensor Networks (ALGOSENSORS)
publication_status: published
publisher: Springer
series_title: LNCS
status: public
title: Gathering a Euclidean Closed Chain of Robots in Linear Time
type: conference
user_id: '38705'
volume: 12961
year: '2021'
...
---
_id: '23779'
abstract:
- lang: ger
  text: "Produktentstehung (PE) bezieht sich auf den Prozess der Planung und Entwicklung
    eines Produkts sowie der damit verbundenen Dienstleistungen von der ersten Idee
    bis zur Herstellung und zum Vertrieb. Während dieses Prozesses gibt es zahlreiche
    Aufgaben, die von menschlichem Fachwissen abhängen und typischerweise von erfahrenen
    Experten übernommen werden. Da sich das Feld der Künstlichen Intelligenz (KI)
    immer weiterentwickelt und seinen Weg in den Fertigungssektor findet, gibt es
    viele Möglichkeiten für eine Anwendung von KI, um bei der Lösung der oben genannten
    Aufgaben zu helfen. In diesem Paper geben wir einen umfassenden Überblick über
    den aktuellen Stand der Technik des Einsatzes von KI in der PE. \r\nIm Detail
    analysieren wir 40 bestehende Surveys zu KI in der PE und 94 Case Studies, um
    herauszufinden, welche Bereiche der PE von der aktuellen Forschung in diesem Bereich
    vorrangig adressiert werden, wie ausgereift die diskutierten KI-Methoden sind
    und inwieweit datenzentrierte Ansätze in der aktuellen Forschung genutzt werden."
- lang: eng
  text: "Product Creation (PC) refers to the process of planning and developing a
    product as well as related services from the initial idea until manufacturing
    and distribution. Throughout this process, there are numerous tasks that depend
    on human expertise and are typically undertaken by experienced practitioners.
    As the field of Artificial Intelligence (AI) continues to evolve and finds its
    way into the manufacturing sector, there exist many possibilities for an application
    of AI in order to assist in solving aforementioned tasks. In this work, we provide
    a comprehensive overview of the current state of the art of the use of AI in PC.
    \r\nIn detail, we analyze 40 existing surveys on AI in PC and 94 case studies
    in order to find out which areas of PC are primarily addressed by current research
    in this field, how mature the discussed AI methods are, and to which extent data-centric
    approaches are utilized in current research."
author:
- first_name: Ruslan
  full_name: Bernijazov, Ruslan
  last_name: Bernijazov
- first_name: Alexander
  full_name: Dicks, Alexander
  last_name: Dicks
- first_name: Roman
  full_name: Dumitrescu, Roman
  id: '16190'
  last_name: Dumitrescu
- first_name: Marc
  full_name: Foullois, Marc
  last_name: Foullois
- first_name: Jonas Manuel
  full_name: Hanselle, Jonas Manuel
  id: '43980'
  last_name: Hanselle
  orcid: 0000-0002-1231-4985
- first_name: Eyke
  full_name: Hüllermeier, Eyke
  id: '48129'
  last_name: Hüllermeier
- first_name: Gökce
  full_name: Karakaya, Gökce
  last_name: Karakaya
- first_name: Patrick
  full_name: Ködding, Patrick
  id: '45402'
  last_name: Ködding
- first_name: Volker
  full_name: Lohweg, Volker
  last_name: Lohweg
- first_name: Manuel
  full_name: Malatyali, Manuel
  id: '41265'
  last_name: Malatyali
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
- first_name: Melina
  full_name: Panzner, Melina
  last_name: Panzner
- first_name: Christian
  full_name: Soltenborn, Christian
  id: '1737'
  last_name: Soltenborn
  orcid: 0000-0002-0342-8227
citation:
  ama: 'Bernijazov R, Dicks A, Dumitrescu R, et al. A Meta-Review on Artiﬁcial Intelligence
    in Product Creation. In: <i>Proceedings of the 30th International Joint Conference
    on Artificial Intelligence (IJCAI-21)</i>. ; 2021.'
  apa: Bernijazov, R., Dicks, A., Dumitrescu, R., Foullois, M., Hanselle, J. M., Hüllermeier,
    E., Karakaya, G., Ködding, P., Lohweg, V., Malatyali, M., Meyer auf der Heide,
    F., Panzner, M., &#38; Soltenborn, C. (2021). A Meta-Review on Artiﬁcial Intelligence
    in Product Creation. <i>Proceedings of the 30th International Joint Conference
    on Artificial Intelligence (IJCAI-21)</i>. 30th International Joint Conference
    on Artificial Intelligence (IJCAI 2021) - Workshop “AI and Product Design,” Montreal,
    Kanada.
  bibtex: '@inproceedings{Bernijazov_Dicks_Dumitrescu_Foullois_Hanselle_Hüllermeier_Karakaya_Ködding_Lohweg_Malatyali_et
    al._2021, title={A Meta-Review on Artiﬁcial Intelligence in Product Creation},
    booktitle={Proceedings of the 30th International Joint Conference on Artificial
    Intelligence (IJCAI-21)}, author={Bernijazov, Ruslan and Dicks, Alexander and
    Dumitrescu, Roman and Foullois, Marc and Hanselle, Jonas Manuel and Hüllermeier,
    Eyke and Karakaya, Gökce and Ködding, Patrick and Lohweg, Volker and Malatyali,
    Manuel and et al.}, year={2021} }'
  chicago: Bernijazov, Ruslan, Alexander Dicks, Roman Dumitrescu, Marc Foullois, Jonas
    Manuel Hanselle, Eyke Hüllermeier, Gökce Karakaya, et al. “A Meta-Review on Artiﬁcial
    Intelligence in Product Creation.” In <i>Proceedings of the 30th International
    Joint Conference on Artificial Intelligence (IJCAI-21)</i>, 2021.
  ieee: R. Bernijazov <i>et al.</i>, “A Meta-Review on Artiﬁcial Intelligence in Product
    Creation,” presented at the 30th International Joint Conference on Artificial
    Intelligence (IJCAI 2021) - Workshop “AI and Product Design,” Montreal, Kanada,
    2021.
  mla: Bernijazov, Ruslan, et al. “A Meta-Review on Artiﬁcial Intelligence in Product
    Creation.” <i>Proceedings of the 30th International Joint Conference on Artificial
    Intelligence (IJCAI-21)</i>, 2021.
  short: 'R. Bernijazov, A. Dicks, R. Dumitrescu, M. Foullois, J.M. Hanselle, E. Hüllermeier,
    G. Karakaya, P. Ködding, V. Lohweg, M. Malatyali, F. Meyer auf der Heide, M. Panzner,
    C. Soltenborn, in: Proceedings of the 30th International Joint Conference on Artificial
    Intelligence (IJCAI-21), 2021.'
conference:
  end_date: 2021-08-26
  location: Montreal, Kanada
  name: 30th International Joint Conference on Artificial Intelligence (IJCAI 2021)
    - Workshop "AI and Product Design"
  start_date: 2021-08-19
date_created: 2021-09-06T08:23:45Z
date_updated: 2022-01-06T06:55:59Z
department:
- _id: '63'
- _id: '563'
- _id: '355'
- _id: '241'
keyword:
- Artificial Intelligence Product Creation Literature Review
language:
- iso: eng
main_file_link:
- url: https://www.hsu-hh.de/imb/wp-content/uploads/sites/677/2021/08/A-Meta-Review-on-Artificial-Intelligence-in-Product-Creation.pdf
publication: Proceedings of the 30th International Joint Conference on Artificial
  Intelligence (IJCAI-21)
publication_status: epub_ahead
quality_controlled: '1'
status: public
title: A Meta-Review on Artiﬁcial Intelligence in Product Creation
type: conference
user_id: '15415'
year: '2021'
...
---
_id: '20683'
author:
- first_name: Björn
  full_name: Feldkord, Björn
  id: '22704'
  last_name: Feldkord
- first_name: Till
  full_name: Knollmann, Till
  id: '39241'
  last_name: Knollmann
  orcid: 0000-0003-2014-4696
- first_name: Manuel
  full_name: Malatyali, Manuel
  id: '41265'
  last_name: Malatyali
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
citation:
  ama: Feldkord B, Knollmann T, Malatyali M, Meyer auf der Heide F. Managing Multiple
    Mobile Resources. <i>Theory of Computing Systems</i>. 2021;65:943–984. doi:<a
    href="https://doi.org/10.1007/s00224-020-10023-8">10.1007/s00224-020-10023-8</a>
  apa: Feldkord, B., Knollmann, T., Malatyali, M., &#38; Meyer auf der Heide, F. (2021).
    Managing Multiple Mobile Resources. <i>Theory of Computing Systems</i>, <i>65</i>,
    943–984. <a href="https://doi.org/10.1007/s00224-020-10023-8">https://doi.org/10.1007/s00224-020-10023-8</a>
  bibtex: '@article{Feldkord_Knollmann_Malatyali_Meyer auf der Heide_2021, title={Managing
    Multiple Mobile Resources}, volume={65}, DOI={<a href="https://doi.org/10.1007/s00224-020-10023-8">10.1007/s00224-020-10023-8</a>},
    journal={Theory of Computing Systems}, author={Feldkord, Björn and Knollmann,
    Till and Malatyali, Manuel and Meyer auf der Heide, Friedhelm}, year={2021}, pages={943–984}
    }'
  chicago: 'Feldkord, Björn, Till Knollmann, Manuel Malatyali, and Friedhelm Meyer
    auf der Heide. “Managing Multiple Mobile Resources.” <i>Theory of Computing Systems</i>
    65 (2021): 943–984. <a href="https://doi.org/10.1007/s00224-020-10023-8">https://doi.org/10.1007/s00224-020-10023-8</a>.'
  ieee: 'B. Feldkord, T. Knollmann, M. Malatyali, and F. Meyer auf der Heide, “Managing
    Multiple Mobile Resources,” <i>Theory of Computing Systems</i>, vol. 65, pp. 943–984,
    2021, doi: <a href="https://doi.org/10.1007/s00224-020-10023-8">10.1007/s00224-020-10023-8</a>.'
  mla: Feldkord, Björn, et al. “Managing Multiple Mobile Resources.” <i>Theory of
    Computing Systems</i>, vol. 65, 2021, pp. 943–984, doi:<a href="https://doi.org/10.1007/s00224-020-10023-8">10.1007/s00224-020-10023-8</a>.
  short: B. Feldkord, T. Knollmann, M. Malatyali, F. Meyer auf der Heide, Theory of
    Computing Systems 65 (2021) 943–984.
date_created: 2020-12-08T08:40:10Z
date_updated: 2022-01-06T06:54:31Z
department:
- _id: '63'
doi: 10.1007/s00224-020-10023-8
intvolume: '        65'
language:
- iso: eng
page: 943–984
project:
- _id: '1'
  name: SFB 901
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '5'
  name: SFB 901 - Subproject A1
publication: Theory of Computing Systems
publication_status: published
status: public
title: Managing Multiple Mobile Resources
type: journal_article
user_id: '15415'
volume: 65
year: '2021'
...
---
_id: '20817'
author:
- first_name: Marcin
  full_name: Bienkowski, Marcin
  last_name: Bienkowski
- first_name: Björn
  full_name: Feldkord, Björn
  id: '22704'
  last_name: Feldkord
- first_name: Pawel
  full_name: Schmidt, Pawel
  last_name: Schmidt
citation:
  ama: 'Bienkowski M, Feldkord B, Schmidt P. A Nearly Optimal Deterministic Online
    Algorithm for Non-Metric Facility Location. In: <i>Proceedings of the 38th Symposium
    on Theoretical Aspects of Computer Science (STACS)</i>. ; 2021:14:1-14:17. doi:<a
    href="https://doi.org/10.4230/LIPIcs.STACS.2021.14">10.4230/LIPIcs.STACS.2021.14</a>'
  apa: Bienkowski, M., Feldkord, B., &#38; Schmidt, P. (2021). A Nearly Optimal Deterministic
    Online Algorithm for Non-Metric Facility Location. In <i>Proceedings of the 38th
    Symposium on Theoretical Aspects of Computer Science (STACS)</i> (pp. 14:1-14:17).
    <a href="https://doi.org/10.4230/LIPIcs.STACS.2021.14">https://doi.org/10.4230/LIPIcs.STACS.2021.14</a>
  bibtex: '@inproceedings{Bienkowski_Feldkord_Schmidt_2021, title={A Nearly Optimal
    Deterministic Online Algorithm for Non-Metric Facility Location}, DOI={<a href="https://doi.org/10.4230/LIPIcs.STACS.2021.14">10.4230/LIPIcs.STACS.2021.14</a>},
    booktitle={Proceedings of the 38th Symposium on Theoretical Aspects of Computer
    Science (STACS)}, author={Bienkowski, Marcin and Feldkord, Björn and Schmidt,
    Pawel}, year={2021}, pages={14:1-14:17} }'
  chicago: Bienkowski, Marcin, Björn Feldkord, and Pawel Schmidt. “A Nearly Optimal
    Deterministic Online Algorithm for Non-Metric Facility Location.” In <i>Proceedings
    of the 38th Symposium on Theoretical Aspects of Computer Science (STACS)</i>,
    14:1-14:17, 2021. <a href="https://doi.org/10.4230/LIPIcs.STACS.2021.14">https://doi.org/10.4230/LIPIcs.STACS.2021.14</a>.
  ieee: M. Bienkowski, B. Feldkord, and P. Schmidt, “A Nearly Optimal Deterministic
    Online Algorithm for Non-Metric Facility Location,” in <i>Proceedings of the 38th
    Symposium on Theoretical Aspects of Computer Science (STACS)</i>, 2021, pp. 14:1-14:17.
  mla: Bienkowski, Marcin, et al. “A Nearly Optimal Deterministic Online Algorithm
    for Non-Metric Facility Location.” <i>Proceedings of the 38th Symposium on Theoretical
    Aspects of Computer Science (STACS)</i>, 2021, pp. 14:1-14:17, doi:<a href="https://doi.org/10.4230/LIPIcs.STACS.2021.14">10.4230/LIPIcs.STACS.2021.14</a>.
  short: 'M. Bienkowski, B. Feldkord, P. Schmidt, in: Proceedings of the 38th Symposium
    on Theoretical Aspects of Computer Science (STACS), 2021, pp. 14:1-14:17.'
date_created: 2020-12-21T13:46:16Z
date_updated: 2022-01-06T06:54:40Z
department:
- _id: '63'
doi: 10.4230/LIPIcs.STACS.2021.14
language:
- iso: eng
page: 14:1 - 14:17
project:
- _id: '1'
  name: SFB 901
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '5'
  name: SFB 901 - Subproject A1
publication: Proceedings of the 38th Symposium on Theoretical Aspects of Computer
  Science (STACS)
publication_status: published
status: public
title: A Nearly Optimal Deterministic Online Algorithm for Non-Metric Facility Location
type: conference
user_id: '22704'
year: '2021'
...
---
_id: '22510'
abstract:
- lang: eng
  text: 'Over the past decades, the Gathering problem, which asks to gather a group
    of robots in finite time given some restrictions, has been intensively studied.
    In this paper, we are given a group of n autonomous, dimensionless, deterministic,
    and anonymous robots, with bounded viewing range. Assuming a continuous time model,
    the goal is to gather these robots into one point in finite time. We introduce
    a simple convergence criterion that defines a new class of algorithms which perform
    gathering in O(nd) time, where d is the diameter of the initial robot configuration.
    We show that some gathering algorithms in the literature belong to this class
    and propose two new algorithms that belong to this class and have quadratic running
    time, namely, Go-To-The-Relative-Center algorithm (GTRC) and Safe-Go-To-The-Relative-Center
    algorithm (S-GTRC). We prove that the latter can perform gathering without collision
    by using a slightly more complex robot model: non oblivious, chiral, and luminous
    (i.e. robots have observable external memory, as in [8]). We also consider a variant
    of the Gathering problem, the Near-Gathering problem, in which robots must get
    close to each other without colliding. We show that S-GTRC solves the Near-Gathering
    problem in quadratic time and assumes a weaker robot model than the one assumed
    in the current state-of-the-art.'
author:
- first_name: Shouwei
  full_name: Li, Shouwei
  last_name: Li
- first_name: Christine
  full_name: Markarian, Christine
  last_name: Markarian
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
- first_name: Pavel
  full_name: Podlipyan, Pavel
  last_name: Podlipyan
citation:
  ama: Li S, Markarian C, Meyer auf der Heide F, Podlipyan P. A continuous strategy
    for collisionless gathering. <i>Theoretical Computer Science</i>. 2021;852:41-60.
    doi:<a href="https://doi.org/10.1016/j.tcs.2020.10.037">10.1016/j.tcs.2020.10.037</a>
  apa: Li, S., Markarian, C., Meyer auf der Heide, F., &#38; Podlipyan, P. (2021).
    A continuous strategy for collisionless gathering. <i>Theoretical Computer Science</i>,
    <i>852</i>, 41–60. <a href="https://doi.org/10.1016/j.tcs.2020.10.037">https://doi.org/10.1016/j.tcs.2020.10.037</a>
  bibtex: '@article{Li_Markarian_Meyer auf der Heide_Podlipyan_2021, title={A continuous
    strategy for collisionless gathering}, volume={852}, DOI={<a href="https://doi.org/10.1016/j.tcs.2020.10.037">10.1016/j.tcs.2020.10.037</a>},
    journal={Theoretical Computer Science}, author={Li, Shouwei and Markarian, Christine
    and Meyer auf der Heide, Friedhelm and Podlipyan, Pavel}, year={2021}, pages={41–60}
    }'
  chicago: 'Li, Shouwei, Christine Markarian, Friedhelm Meyer auf der Heide, and Pavel
    Podlipyan. “A Continuous Strategy for Collisionless Gathering.” <i>Theoretical
    Computer Science</i> 852 (2021): 41–60. <a href="https://doi.org/10.1016/j.tcs.2020.10.037">https://doi.org/10.1016/j.tcs.2020.10.037</a>.'
  ieee: S. Li, C. Markarian, F. Meyer auf der Heide, and P. Podlipyan, “A continuous
    strategy for collisionless gathering,” <i>Theoretical Computer Science</i>, vol.
    852, pp. 41–60, 2021.
  mla: Li, Shouwei, et al. “A Continuous Strategy for Collisionless Gathering.” <i>Theoretical
    Computer Science</i>, vol. 852, 2021, pp. 41–60, doi:<a href="https://doi.org/10.1016/j.tcs.2020.10.037">10.1016/j.tcs.2020.10.037</a>.
  short: S. Li, C. Markarian, F. Meyer auf der Heide, P. Podlipyan, Theoretical Computer
    Science 852 (2021) 41–60.
date_created: 2021-06-28T09:24:15Z
date_updated: 2022-01-06T06:55:35Z
department:
- _id: '63'
doi: 10.1016/j.tcs.2020.10.037
intvolume: '       852'
keyword:
- Local algorithms
- Distributed algorithms
- Collisionless gathering
- Mobile robots
- Multiagent system
language:
- iso: eng
page: 41-60
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
status: public
title: A continuous strategy for collisionless gathering
type: journal_article
user_id: '15415'
volume: 852
year: '2021'
...
---
_id: '22511'
abstract:
- lang: eng
  text: "In this paper, we reconsider the well-known discrete, round-based Go-To-The-Center
    algorithm due to Ando, Suzuki, and Yamashita [2] for gathering n autonomous mobile
    robots with limited viewing range in the plane. Remarquably, this algorithm exploits
    the fact that during its execution, many collisions of robots occur. Such collisions
    are interpreted as a success because it is assumed that such collided robots behave
    the same from now on. This is acceptable under the assumption that each robot
    is represented by a single point. Otherwise, collisions should be avoided. In
    this paper, we consider a continuous Go-To-The-Center algorithm in which the robots
    continuously observe the positions of their neighbors and adapt their speed (assuming
    a speed limit) and direction. Our first results are time bounds of O(n2) for gathering
    in two dimensions Euclidean space, and Θ(n) for the one dimension. Our main contribution
    is the introduction and evaluation of a continuous algorithm which performs Go-To-The-Center
    considering only the neighbors of a robot with respect to the Gabriel subgraph
    of the visibility graph, i.e. Go-To-The-Gabriel-Center algorithm. We show that
    this modification still correctly executes gathering in one and two dimensions,
    with the same time bounds as above. Simulations exhibit a severe difference of
    the behavior of the Go-To-The-Center and the Go-To-The-Gabriel-Center algorithms:
    Whereas lots of collisions occur during a run of the Go-To-The-Center algorithm,
    typically only one, namely the final collision occurs during a run of the Go-To-The-Gabriel-Center
    algorithm. We can prove this “collisionless property” of the Go-To-The-Gabriel-Center
    algorithm for one dimension. In two-dimensional Euclidean space, we conjecture
    that the “collisionless property” holds for almost every initial configuration.
    We support our conjecture with measurements obtained from the simulation where
    robots execute both continuous Go-To-The-Center and Go-To-The-Gabriel-Center algorithms.\r\n"
author:
- first_name: Shouwei
  full_name: Li, Shouwei
  last_name: Li
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
- first_name: Pavel
  full_name: Podlipyan, Pavel
  last_name: Podlipyan
citation:
  ama: Li S, Meyer auf der Heide F, Podlipyan P. The impact of the Gabriel subgraph
    of the visibility graph on the gathering of mobile autonomous robots. <i>Theoretical
    Computer Science</i>. 2021;852:29-40. doi:<a href="https://doi.org/10.1016/j.tcs.2020.11.009">10.1016/j.tcs.2020.11.009</a>
  apa: Li, S., Meyer auf der Heide, F., &#38; Podlipyan, P. (2021). The impact of
    the Gabriel subgraph of the visibility graph on the gathering of mobile autonomous
    robots. <i>Theoretical Computer Science</i>, <i>852</i>, 29–40. <a href="https://doi.org/10.1016/j.tcs.2020.11.009">https://doi.org/10.1016/j.tcs.2020.11.009</a>
  bibtex: '@article{Li_Meyer auf der Heide_Podlipyan_2021, title={The impact of the
    Gabriel subgraph of the visibility graph on the gathering of mobile autonomous
    robots}, volume={852}, DOI={<a href="https://doi.org/10.1016/j.tcs.2020.11.009">10.1016/j.tcs.2020.11.009</a>},
    journal={Theoretical Computer Science}, author={Li, Shouwei and Meyer auf der
    Heide, Friedhelm and Podlipyan, Pavel}, year={2021}, pages={29–40} }'
  chicago: 'Li, Shouwei, Friedhelm Meyer auf der Heide, and Pavel Podlipyan. “The
    Impact of the Gabriel Subgraph of the Visibility Graph on the Gathering of Mobile
    Autonomous Robots.” <i>Theoretical Computer Science</i> 852 (2021): 29–40. <a
    href="https://doi.org/10.1016/j.tcs.2020.11.009">https://doi.org/10.1016/j.tcs.2020.11.009</a>.'
  ieee: S. Li, F. Meyer auf der Heide, and P. Podlipyan, “The impact of the Gabriel
    subgraph of the visibility graph on the gathering of mobile autonomous robots,”
    <i>Theoretical Computer Science</i>, vol. 852, pp. 29–40, 2021.
  mla: Li, Shouwei, et al. “The Impact of the Gabriel Subgraph of the Visibility Graph
    on the Gathering of Mobile Autonomous Robots.” <i>Theoretical Computer Science</i>,
    vol. 852, 2021, pp. 29–40, doi:<a href="https://doi.org/10.1016/j.tcs.2020.11.009">10.1016/j.tcs.2020.11.009</a>.
  short: S. Li, F. Meyer auf der Heide, P. Podlipyan, Theoretical Computer Science
    852 (2021) 29–40.
date_created: 2021-06-28T09:34:45Z
date_updated: 2022-01-06T06:55:35Z
department:
- _id: '63'
doi: 10.1016/j.tcs.2020.11.009
intvolume: '       852'
keyword:
- Local algorithms
- Distributed algorithms
- Collisionless gathering
- Mobile robots
- Multiagent system
language:
- iso: eng
page: 29-40
publication: Theoretical Computer Science
publication_identifier:
  issn:
  - 0304-3975
publication_status: published
status: public
title: The impact of the Gabriel subgraph of the visibility graph on the gathering
  of mobile autonomous robots
type: journal_article
user_id: '15415'
volume: 852
year: '2021'
...
---
_id: '26986'
author:
- first_name: Jannik
  full_name: Castenow, Jannik
  id: '38705'
  last_name: Castenow
- first_name: Thorsten
  full_name: Götte, Thorsten
  id: '34727'
  last_name: Götte
- first_name: Till
  full_name: Knollmann, Till
  id: '39241'
  last_name: Knollmann
  orcid: 0000-0003-2014-4696
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
citation:
  ama: 'Castenow J, Götte T, Knollmann T, Meyer auf der Heide F. The Max-Line-Formation
    Problem – And New Insights for Gathering and Chain-Formation. In: Johnen C, Schiller
    EM, Schmid S, eds. <i>Proceedings of the 23rd International Symposium on Stabilization,
    Safety, and Security of Distributed Systems, SSS 2021</i>. Vol 13046. LNCS. Springer;
    2021:289-304. doi:<a href="https://doi.org/10.1007/978-3-030-91081-5_19">10.1007/978-3-030-91081-5_19</a>'
  apa: Castenow, J., Götte, T., Knollmann, T., &#38; Meyer auf der Heide, F. (2021).
    The Max-Line-Formation Problem – And New Insights for Gathering and Chain-Formation.
    In C. Johnen, E. M. Schiller, &#38; S. Schmid (Eds.), <i>Proceedings of the 23rd
    International Symposium on Stabilization, Safety, and Security of Distributed
    Systems, SSS 2021</i> (Vol. 13046, pp. 289–304). Springer. <a href="https://doi.org/10.1007/978-3-030-91081-5_19">https://doi.org/10.1007/978-3-030-91081-5_19</a>
  bibtex: '@inproceedings{Castenow_Götte_Knollmann_Meyer auf der Heide_2021, series={LNCS},
    title={The Max-Line-Formation Problem – And New Insights for Gathering and Chain-Formation},
    volume={13046}, DOI={<a href="https://doi.org/10.1007/978-3-030-91081-5_19">10.1007/978-3-030-91081-5_19</a>},
    booktitle={Proceedings of the 23rd International Symposium on Stabilization, Safety,
    and Security of Distributed Systems, SSS 2021}, publisher={Springer}, author={Castenow,
    Jannik and Götte, Thorsten and Knollmann, Till and Meyer auf der Heide, Friedhelm},
    editor={Johnen, C. and Schiller, E.M. and Schmid, S.}, year={2021}, pages={289–304},
    collection={LNCS} }'
  chicago: Castenow, Jannik, Thorsten Götte, Till Knollmann, and Friedhelm Meyer auf
    der Heide. “The Max-Line-Formation Problem – And New Insights for Gathering and
    Chain-Formation.” In <i>Proceedings of the 23rd International Symposium on Stabilization,
    Safety, and Security of Distributed Systems, SSS 2021</i>, edited by C. Johnen,
    E.M. Schiller, and S. Schmid, 13046:289–304. LNCS. Springer, 2021. <a href="https://doi.org/10.1007/978-3-030-91081-5_19">https://doi.org/10.1007/978-3-030-91081-5_19</a>.
  ieee: 'J. Castenow, T. Götte, T. Knollmann, and F. Meyer auf der Heide, “The Max-Line-Formation
    Problem – And New Insights for Gathering and Chain-Formation,” in <i>Proceedings
    of the 23rd International Symposium on Stabilization, Safety, and Security of
    Distributed Systems, SSS 2021</i>, Online, 2021, vol. 13046, pp. 289–304, doi:
    <a href="https://doi.org/10.1007/978-3-030-91081-5_19">10.1007/978-3-030-91081-5_19</a>.'
  mla: Castenow, Jannik, et al. “The Max-Line-Formation Problem – And New Insights
    for Gathering and Chain-Formation.” <i>Proceedings of the 23rd International Symposium
    on Stabilization, Safety, and Security of Distributed Systems, SSS 2021</i>, edited
    by C. Johnen et al., vol. 13046, Springer, 2021, pp. 289–304, doi:<a href="https://doi.org/10.1007/978-3-030-91081-5_19">10.1007/978-3-030-91081-5_19</a>.
  short: 'J. Castenow, T. Götte, T. Knollmann, F. Meyer auf der Heide, in: C. Johnen,
    E.M. Schiller, S. Schmid (Eds.), Proceedings of the 23rd International Symposium
    on Stabilization, Safety, and Security of Distributed Systems, SSS 2021, Springer,
    2021, pp. 289–304.'
conference:
  end_date: 2021-11-20
  location: Online
  name: 23rd International Symposium on Stabilization, Safety, and Security of Distributed
    Systems
  start_date: 2021-11-17
date_created: 2021-10-28T07:01:30Z
date_updated: 2022-01-07T15:24:10Z
department:
- _id: '63'
doi: 10.1007/978-3-030-91081-5_19
editor:
- first_name: C.
  full_name: Johnen, C.
  last_name: Johnen
- first_name: E.M.
  full_name: Schiller, E.M.
  last_name: Schiller
- first_name: S.
  full_name: Schmid, S.
  last_name: Schmid
external_id:
  arxiv:
  - '2109.11856'
intvolume: '     13046'
language:
- iso: eng
page: '289-304 '
project:
- _id: '106'
  name: 'Algorithmen für Schwarmrobotik: Verteiltes Rechnen trifft Dynamische Systeme'
publication: Proceedings of the 23rd International Symposium on Stabilization, Safety,
  and Security of Distributed Systems, SSS 2021
publication_status: published
publisher: Springer
series_title: LNCS
status: public
title: The Max-Line-Formation Problem – And New Insights for Gathering and Chain-Formation
type: conference
user_id: '38705'
volume: 13046
year: '2021'
...
---
_id: '27778'
abstract:
- lang: eng
  text: "Consider a set of jobs connected to a directed acyclic task graph with a\r\nfixed
    source and sink. The edges of this graph model precedence constraints and\r\nthe
    jobs have to be scheduled with respect to those. We introduce the Server\r\nCloud
    Scheduling problem, in which the jobs have to be processed either on a\r\nsingle
    local machine or on one of many cloud machines. Both the source and the\r\nsink
    have to be scheduled on the local machine. For each job, processing times\r\nboth
    on the server and in the cloud are given. Furthermore, for each edge in\r\nthe
    task graph, a communication delay is included in the input and has to be\r\ntaken
    into account if one of the two jobs is scheduled on the server, the other\r\nin
    the cloud. The server can process jobs sequentially, whereas the cloud can\r\nserve
    as many as needed in parallel, but induces costs. We consider both\r\nmakespan
    and cost minimization. The main results are an FPTAS with respect for\r\nthe makespan
    objective for a fairly general case and strong hardness for the\r\ncase with unit
    processing times and delays."
author:
- first_name: Marten
  full_name: Maack, Marten
  id: '88252'
  last_name: Maack
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
- first_name: Simon
  full_name: Pukrop, Simon
  id: '44428'
  last_name: Pukrop
citation:
  ama: Maack M, Meyer auf der Heide F, Pukrop S. Full Version -- Server Cloud Scheduling.
    <i>arXiv:210802109</i>. Published online 2021.
  apa: Maack, M., Meyer auf der Heide, F., &#38; Pukrop, S. (2021). Full Version --
    Server Cloud Scheduling. In <i>arXiv:2108.02109</i>.
  bibtex: '@article{Maack_Meyer auf der Heide_Pukrop_2021, title={Full Version --
    Server Cloud Scheduling}, journal={arXiv:2108.02109}, author={Maack, Marten and
    Meyer auf der Heide, Friedhelm and Pukrop, Simon}, year={2021} }'
  chicago: Maack, Marten, Friedhelm Meyer auf der Heide, and Simon Pukrop. “Full Version
    -- Server Cloud Scheduling.” <i>ArXiv:2108.02109</i>, 2021.
  ieee: M. Maack, F. Meyer auf der Heide, and S. Pukrop, “Full Version -- Server Cloud
    Scheduling,” <i>arXiv:2108.02109</i>. 2021.
  mla: Maack, Marten, et al. “Full Version -- Server Cloud Scheduling.” <i>ArXiv:2108.02109</i>,
    2021.
  short: M. Maack, F. Meyer auf der Heide, S. Pukrop, ArXiv:2108.02109 (2021).
date_created: 2021-11-24T13:23:58Z
date_updated: 2022-09-27T15:03:19Z
department:
- _id: '63'
- _id: '26'
language:
- iso: eng
publication: arXiv:2108.02109
status: public
title: Full Version -- Server Cloud Scheduling
type: preprint
user_id: '44428'
year: '2021'
...
---
_id: '44234'
author:
- first_name: Thilo Frederik
  full_name: Berger, Thilo Frederik
  last_name: Berger
citation:
  ama: Berger TF. <i>Combining Mobility, Heterogeneity, and Leasing Approaches for
    Online Resource Allocation</i>.; 2021.
  apa: Berger, T. F. (2021). <i>Combining Mobility, Heterogeneity, and Leasing Approaches
    for Online Resource Allocation</i>.
  bibtex: '@book{Berger_2021, title={Combining Mobility, Heterogeneity, and Leasing
    Approaches for Online Resource Allocation}, author={Berger, Thilo Frederik}, year={2021}
    }'
  chicago: Berger, Thilo Frederik. <i>Combining Mobility, Heterogeneity, and Leasing
    Approaches for Online Resource Allocation</i>, 2021.
  ieee: T. F. Berger, <i>Combining Mobility, Heterogeneity, and Leasing Approaches
    for Online Resource Allocation</i>. 2021.
  mla: Berger, Thilo Frederik. <i>Combining Mobility, Heterogeneity, and Leasing Approaches
    for Online Resource Allocation</i>. 2021.
  short: T.F. Berger, Combining Mobility, Heterogeneity, and Leasing Approaches for
    Online Resource Allocation, 2021.
date_created: 2023-04-27T15:34:07Z
date_updated: 2023-04-27T15:34:17Z
department:
- _id: '63'
language:
- iso: eng
project:
- _id: '1'
  name: 'SFB 901: SFB 901'
- _id: '2'
  name: 'SFB 901 - A: SFB 901 - Project Area A'
- _id: '5'
  name: 'SFB 901 - A1: SFB 901 - Subproject A1'
status: public
supervisor:
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
title: Combining Mobility, Heterogeneity, and Leasing Approaches for Online Resource
  Allocation
type: bachelorsthesis
user_id: '39241'
year: '2021'
...
---
_id: '44233'
author:
- first_name: Sebastian
  full_name: Pranger, Sebastian
  last_name: Pranger
citation:
  ama: Pranger S. <i>Online K-Facility Reallocation Using k-Server Algorithms</i>.;
    2021.
  apa: Pranger, S. (2021). <i>Online k-Facility Reallocation using k-Server Algorithms</i>.
  bibtex: '@book{Pranger_2021, title={Online k-Facility Reallocation using k-Server
    Algorithms}, author={Pranger, Sebastian}, year={2021} }'
  chicago: Pranger, Sebastian. <i>Online K-Facility Reallocation Using k-Server Algorithms</i>,
    2021.
  ieee: S. Pranger, <i>Online k-Facility Reallocation using k-Server Algorithms</i>.
    2021.
  mla: Pranger, Sebastian. <i>Online K-Facility Reallocation Using k-Server Algorithms</i>.
    2021.
  short: S. Pranger, Online K-Facility Reallocation Using k-Server Algorithms, 2021.
date_created: 2023-04-27T15:31:26Z
date_updated: 2023-04-27T15:31:57Z
department:
- _id: '63'
language:
- iso: eng
project:
- _id: '1'
  name: 'SFB 901: SFB 901'
- _id: '2'
  name: 'SFB 901 - A: SFB 901 - Project Area A'
- _id: '5'
  name: 'SFB 901 - A1: SFB 901 - Subproject A1'
status: public
supervisor:
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
title: Online k-Facility Reallocation using k-Server Algorithms
type: bachelorsthesis
user_id: '39241'
year: '2021'
...
---
_id: '19899'
abstract:
- lang: eng
  text: "Most existing robot formation problems seek a target formation of a certain\r\nminimal
    and, thus, efficient structure. Examples include the Gathering\r\nand the Chain-Formation
    problem. In this work, we study formation problems that\r\ntry to reach a maximal
    structure, supporting for example an efficient\r\ncoverage in exploration scenarios.
    A recent example is the NASA Shapeshifter\r\nproject, which describes how the
    robots form a relay chain along which gathered\r\ndata from extraterrestrial cave
    explorations may be sent to a home base.\r\n  As a first step towards understanding
    such maximization tasks, we introduce\r\nand study the Max-Chain-Formation problem,
    where $n$ robots are ordered along a\r\nwinding, potentially self-intersecting
    chain and must form a connected,\r\nstraight line of maximal length connecting
    its two endpoints. We propose and\r\nanalyze strategies in a discrete and in a
    continuous time model. In the\r\ndiscrete case, we give a complete analysis if
    all robots are initially\r\ncollinear, showing that the worst-case time to reach
    an\r\n$\\varepsilon$-approximation is upper bounded by $\\mathcal{O}(n^2 \\cdot
    \\log\r\n(n/\\varepsilon))$ and lower bounded by $\\Omega(n^2 \\cdot~\\log\r\n(1/\\varepsilon))$.
    If one endpoint of the chain remains stationary, this result\r\ncan be extended
    to the non-collinear case. If both endpoints move, we identify\r\na family of
    instances whose runtime is unbounded. For the continuous model, we\r\ngive a strategy
    with an optimal runtime bound of $\\Theta(n)$. Avoiding an\r\nunbounded runtime
    similar to the discrete case relies crucially on a\r\ncounter-intuitive aspect
    of the strategy: slowing down the endpoints while all\r\nother robots move at
    full speed. Surprisingly, we can show that a similar trick\r\ndoes not work in
    the discrete model."
author:
- first_name: Jannik
  full_name: Castenow, Jannik
  id: '38705'
  last_name: Castenow
- first_name: Peter
  full_name: Kling, Peter
  last_name: Kling
- first_name: Till
  full_name: Knollmann, Till
  id: '39241'
  last_name: Knollmann
  orcid: 0000-0003-2014-4696
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
citation:
  ama: 'Castenow J, Kling P, Knollmann T, Meyer auf der Heide F. A Discrete and Continuous
    Study of the Max-Chain-Formation Problem – Slow Down to Speed Up. In: Devismes  S,
    Mittal N, eds. <i>Stabilization, Safety, and Security of Distributed Systems -
    22nd International Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020,
    Proceedings</i>. Vol 12514. Lecture Notes in Computer Science (LNCS). Springer;
    2020:65-80. doi:<a href="https://doi.org/10.1007/978-3-030-64348-5_6">10.1007/978-3-030-64348-5_6</a>'
  apa: Castenow, J., Kling, P., Knollmann, T., &#38; Meyer auf der Heide, F. (2020).
    A Discrete and Continuous Study of the Max-Chain-Formation Problem – Slow Down
    to Speed Up. In S. Devismes  &#38; N. Mittal (Eds.), <i>Stabilization, Safety,
    and Security of Distributed Systems - 22nd International Symposium, SSS 2020,
    Austin, Texas, USA, November 18-21, 2020, Proceedings</i> (Vol. 12514, pp. 65–80).
    Springer. <a href="https://doi.org/10.1007/978-3-030-64348-5_6">https://doi.org/10.1007/978-3-030-64348-5_6</a>
  bibtex: '@inproceedings{Castenow_Kling_Knollmann_Meyer auf der Heide_2020, series={Lecture
    Notes in Computer Science (LNCS)}, title={A Discrete and Continuous Study of the
    Max-Chain-Formation Problem – Slow Down to Speed Up}, volume={12514}, DOI={<a
    href="https://doi.org/10.1007/978-3-030-64348-5_6">10.1007/978-3-030-64348-5_6</a>},
    booktitle={Stabilization, Safety, and Security of Distributed Systems - 22nd International
    Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020, Proceedings}, publisher={Springer},
    author={Castenow, Jannik and Kling, Peter and Knollmann, Till and Meyer auf der
    Heide, Friedhelm}, editor={Devismes , Stéphane  and Mittal, Neeraj Editors}, year={2020},
    pages={65–80}, collection={Lecture Notes in Computer Science (LNCS)} }'
  chicago: Castenow, Jannik, Peter Kling, Till Knollmann, and Friedhelm Meyer auf
    der Heide. “A Discrete and Continuous Study of the Max-Chain-Formation Problem
    – Slow Down to Speed Up.” In <i>Stabilization, Safety, and Security of Distributed
    Systems - 22nd International Symposium, SSS 2020, Austin, Texas, USA, November
    18-21, 2020, Proceedings</i>, edited by Stéphane  Devismes  and Neeraj  Mittal,
    12514:65–80. Lecture Notes in Computer Science (LNCS). Springer, 2020. <a href="https://doi.org/10.1007/978-3-030-64348-5_6">https://doi.org/10.1007/978-3-030-64348-5_6</a>.
  ieee: J. Castenow, P. Kling, T. Knollmann, and F. Meyer auf der Heide, “A Discrete
    and Continuous Study of the Max-Chain-Formation Problem – Slow Down to Speed Up,”
    in <i>Stabilization, Safety, and Security of Distributed Systems - 22nd International
    Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020, Proceedings</i>,
    2020, vol. 12514, pp. 65–80.
  mla: Castenow, Jannik, et al. “A Discrete and Continuous Study of the Max-Chain-Formation
    Problem – Slow Down to Speed Up.” <i>Stabilization, Safety, and Security of Distributed
    Systems - 22nd International Symposium, SSS 2020, Austin, Texas, USA, November
    18-21, 2020, Proceedings</i>, edited by Stéphane  Devismes  and Neeraj  Mittal,
    vol. 12514, Springer, 2020, pp. 65–80, doi:<a href="https://doi.org/10.1007/978-3-030-64348-5_6">10.1007/978-3-030-64348-5_6</a>.
  short: 'J. Castenow, P. Kling, T. Knollmann, F. Meyer auf der Heide, in: S. Devismes
    , N. Mittal (Eds.), Stabilization, Safety, and Security of Distributed Systems
    - 22nd International Symposium, SSS 2020, Austin, Texas, USA, November 18-21,
    2020, Proceedings, Springer, 2020, pp. 65–80.'
date_created: 2020-10-06T07:27:10Z
date_updated: 2022-01-06T06:54:14Z
department:
- _id: '63'
doi: 10.1007/978-3-030-64348-5_6
editor:
- first_name: 'Stéphane '
  full_name: 'Devismes , Stéphane '
  last_name: 'Devismes '
- first_name: 'Neeraj '
  full_name: 'Mittal, Neeraj '
  last_name: Mittal
external_id:
  arxiv:
  - '2010.02043 '
intvolume: '     12514'
language:
- iso: eng
page: 65-80
publication: Stabilization, Safety, and Security of Distributed Systems - 22nd International
  Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020, Proceedings
publication_identifier:
  isbn:
  - 978-3-030-64347-8
publication_status: published
publisher: Springer
series_title: Lecture Notes in Computer Science (LNCS)
status: public
title: A Discrete and Continuous Study of the Max-Chain-Formation Problem – Slow Down
  to Speed Up
type: conference
user_id: '38705'
volume: 12514
year: '2020'
...
---
_id: '20159'
abstract:
- lang: eng
  text: "Let G = (V,E) be an undirected graph on n vertices with non-negative capacities
    on its edges. The mincut sensitivity problem for the insertion of an edge is defined
    as follows. Build a compact data structure for G and a given set S ⊆ V of vertices
    that, on receiving any edge (x,y) ∈ S×S of positive capacity as query input, can
    efficiently report the set of all pairs from S× S whose mincut value increases
    upon insertion of the edge (x,y) to G. The only result that exists for this problem
    is for a single pair of vertices (Picard and Queyranne, Mathematical Programming
    Study, 13 (1980), 8-16). We present the following results for the single source
    and the all-pairs versions of this problem. \r\n1) Single source: Given any designated
    source vertex s, there exists a data structure of size \U0001D4AA(|S|) that can
    output all those vertices from S whose mincut value to s increases upon insertion
    of any given edge. The time taken by the data structure to answer any query is
    \U0001D4AA(|S|). \r\n2) All-pairs: There exists an \U0001D4AA(|S|²) size data
    structure that can output all those pairs of vertices from S× S whose mincut value
    gets increased upon insertion of any given edge. The time taken by the data structure
    to answer any query is \U0001D4AA(k), where k is the number of pairs of vertices
    whose mincut increases. \r\nFor both these versions, we also address the problem
    of reporting the values of the mincuts upon insertion of any given edge. To derive
    our results, we use interesting insights into the nearest and the farthest mincuts
    for a pair of vertices. In addition, a crucial result, that we establish and use
    in our data structures, is that there exists a directed acyclic graph of \U0001D4AA(n)
    size that compactly stores the farthest mincuts from all vertices of V to a designated
    vertex s in the graph. We believe that this result is of independent interest,
    especially, because it also complements a previously existing result by Hariharan
    et al. (STOC 2007) that the nearest mincuts from all vertices of V to s is a laminar
    family, and hence, can be stored compactly in a tree of \U0001D4AA(n) size."
author:
- first_name: Surender
  full_name: Baswana, Surender
  last_name: Baswana
- first_name: Shiv
  full_name: Gupta, Shiv
  last_name: Gupta
- first_name: Till
  full_name: Knollmann, Till
  id: '39241'
  last_name: Knollmann
  orcid: 0000-0003-2014-4696
citation:
  ama: 'Baswana S, Gupta S, Knollmann T. Mincut Sensitivity Data Structures for the
    Insertion of an Edge. In: Grandoni F, Herman G, Sanders P, eds. <i>28th Annual
    European Symposium on Algorithms (ESA 2020)</i>. Vol 173. Leibniz International
    Proceedings in Informatics (LIPIcs). Dagstuhl, Germany: Schloss Dagstuhl -- Leibniz-Zentrum
    für Informatik; 2020:12:1-12:14. doi:<a href="https://doi.org/10.4230/LIPIcs.ESA.2020.12">10.4230/LIPIcs.ESA.2020.12</a>'
  apa: 'Baswana, S., Gupta, S., &#38; Knollmann, T. (2020). Mincut Sensitivity Data
    Structures for the Insertion of an Edge. In F. Grandoni, G. Herman, &#38; P. Sanders
    (Eds.), <i>28th Annual European Symposium on Algorithms (ESA 2020)</i> (Vol. 173,
    pp. 12:1-12:14). Dagstuhl, Germany: Schloss Dagstuhl -- Leibniz-Zentrum für Informatik.
    <a href="https://doi.org/10.4230/LIPIcs.ESA.2020.12">https://doi.org/10.4230/LIPIcs.ESA.2020.12</a>'
  bibtex: '@inproceedings{Baswana_Gupta_Knollmann_2020, place={Dagstuhl, Germany},
    series={Leibniz International Proceedings in Informatics (LIPIcs)}, title={Mincut
    Sensitivity Data Structures for the Insertion of an Edge}, volume={173}, DOI={<a
    href="https://doi.org/10.4230/LIPIcs.ESA.2020.12">10.4230/LIPIcs.ESA.2020.12</a>},
    booktitle={28th Annual European Symposium on Algorithms (ESA 2020)}, publisher={Schloss
    Dagstuhl -- Leibniz-Zentrum für Informatik}, author={Baswana, Surender and Gupta,
    Shiv and Knollmann, Till}, editor={Grandoni, Fabrizio and Herman, Grzegorz and
    Sanders, PeterEditors}, year={2020}, pages={12:1-12:14}, collection={Leibniz International
    Proceedings in Informatics (LIPIcs)} }'
  chicago: 'Baswana, Surender, Shiv Gupta, and Till Knollmann. “Mincut Sensitivity
    Data Structures for the Insertion of an Edge.” In <i>28th Annual European Symposium
    on Algorithms (ESA 2020)</i>, edited by Fabrizio Grandoni, Grzegorz Herman, and
    Peter Sanders, 173:12:1-12:14. Leibniz International Proceedings in Informatics
    (LIPIcs). Dagstuhl, Germany: Schloss Dagstuhl -- Leibniz-Zentrum für Informatik,
    2020. <a href="https://doi.org/10.4230/LIPIcs.ESA.2020.12">https://doi.org/10.4230/LIPIcs.ESA.2020.12</a>.'
  ieee: S. Baswana, S. Gupta, and T. Knollmann, “Mincut Sensitivity Data Structures
    for the Insertion of an Edge,” in <i>28th Annual European Symposium on Algorithms
    (ESA 2020)</i>, 2020, vol. 173, pp. 12:1-12:14.
  mla: Baswana, Surender, et al. “Mincut Sensitivity Data Structures for the Insertion
    of an Edge.” <i>28th Annual European Symposium on Algorithms (ESA 2020)</i>, edited
    by Fabrizio Grandoni et al., vol. 173, Schloss Dagstuhl -- Leibniz-Zentrum für
    Informatik, 2020, pp. 12:1-12:14, doi:<a href="https://doi.org/10.4230/LIPIcs.ESA.2020.12">10.4230/LIPIcs.ESA.2020.12</a>.
  short: 'S. Baswana, S. Gupta, T. Knollmann, in: F. Grandoni, G. Herman, P. Sanders
    (Eds.), 28th Annual European Symposium on Algorithms (ESA 2020), Schloss Dagstuhl
    -- Leibniz-Zentrum für Informatik, Dagstuhl, Germany, 2020, pp. 12:1-12:14.'
date_created: 2020-10-21T12:00:20Z
date_updated: 2022-01-06T06:54:20Z
department:
- _id: '63'
doi: 10.4230/LIPIcs.ESA.2020.12
editor:
- first_name: Fabrizio
  full_name: Grandoni, Fabrizio
  last_name: Grandoni
- first_name: Grzegorz
  full_name: Herman, Grzegorz
  last_name: Herman
- first_name: Peter
  full_name: Sanders, Peter
  last_name: Sanders
intvolume: '       173'
keyword:
- Mincut
- Sensitivity
- Data Structure
language:
- iso: eng
page: 12:1-12:14
place: Dagstuhl, Germany
publication: 28th Annual European Symposium on Algorithms (ESA 2020)
publication_identifier:
  isbn:
  - 978-3-95977-162-7
  issn:
  - 1868-8969
publisher: Schloss Dagstuhl -- Leibniz-Zentrum für Informatik
series_title: Leibniz International Proceedings in Informatics (LIPIcs)
status: public
title: Mincut Sensitivity Data Structures for the Insertion of an Edge
type: conference
user_id: '39241'
volume: 173
year: '2020'
...
---
_id: '20185'
author:
- first_name: Jannik
  full_name: Castenow, Jannik
  id: '38705'
  last_name: Castenow
- first_name: Jonas
  full_name: Harbig, Jonas
  id: '47213'
  last_name: Harbig
- first_name: Daniel
  full_name: Jung, Daniel
  id: '37827'
  last_name: Jung
- first_name: Till
  full_name: Knollmann, Till
  id: '39241'
  last_name: Knollmann
  orcid: 0000-0003-2014-4696
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
citation:
  ama: 'Castenow J, Harbig J, Jung D, Knollmann T, Meyer auf der Heide F. Brief Announcement:
    Gathering in Linear Time: A Closed Chain of Disoriented &#38; Luminous Robots
    with Limited Visibility . In: Devismes S,  Mittal N, eds. <i>Stabilization, Safety,
    and Security of Distributed Systems - 22nd International Symposium, SSS 2020,
    Austin, Texas, USA, November 18-21, 2020, Proceedings </i>. Vol 12514. Lecture
    Notes in Computer Science (LNCS). Springer; 2020:60-64. doi:<a href="https://doi.org/10.1007/978-3-030-64348-5_5">10.1007/978-3-030-64348-5_5</a>'
  apa: 'Castenow, J., Harbig, J., Jung, D., Knollmann, T., &#38; Meyer auf der Heide,
    F. (2020). Brief Announcement: Gathering in Linear Time: A Closed Chain of Disoriented
    &#38; Luminous Robots with Limited Visibility . In S. Devismes &#38; N.  Mittal
    (Eds.), <i>Stabilization, Safety, and Security of Distributed Systems - 22nd International
    Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020, Proceedings </i>
    (Vol. 12514, pp. 60–64). Springer. <a href="https://doi.org/10.1007/978-3-030-64348-5_5">https://doi.org/10.1007/978-3-030-64348-5_5</a>'
  bibtex: '@inproceedings{Castenow_Harbig_Jung_Knollmann_Meyer auf der Heide_2020,
    series={Lecture Notes in Computer Science (LNCS)}, title={Brief Announcement:
    Gathering in Linear Time: A Closed Chain of Disoriented &#38; Luminous Robots
    with Limited Visibility }, volume={12514}, DOI={<a href="https://doi.org/10.1007/978-3-030-64348-5_5">10.1007/978-3-030-64348-5_5</a>},
    booktitle={Stabilization, Safety, and Security of Distributed Systems - 22nd International
    Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020, Proceedings },
    publisher={Springer}, author={Castenow, Jannik and Harbig, Jonas and Jung, Daniel
    and Knollmann, Till and Meyer auf der Heide, Friedhelm}, editor={Devismes, Stéphane  and  Mittal,
    NeerajEditors}, year={2020}, pages={60–64}, collection={Lecture Notes in Computer
    Science (LNCS)} }'
  chicago: 'Castenow, Jannik, Jonas Harbig, Daniel Jung, Till Knollmann, and Friedhelm
    Meyer auf der Heide. “Brief Announcement: Gathering in Linear Time: A Closed Chain
    of Disoriented &#38; Luminous Robots with Limited Visibility .” In <i>Stabilization,
    Safety, and Security of Distributed Systems - 22nd International Symposium, SSS
    2020, Austin, Texas, USA, November 18-21, 2020, Proceedings </i>, edited by Stéphane  Devismes
    and Neeraj  Mittal, 12514:60–64. Lecture Notes in Computer Science (LNCS). Springer,
    2020. <a href="https://doi.org/10.1007/978-3-030-64348-5_5">https://doi.org/10.1007/978-3-030-64348-5_5</a>.'
  ieee: 'J. Castenow, J. Harbig, D. Jung, T. Knollmann, and F. Meyer auf der Heide,
    “Brief Announcement: Gathering in Linear Time: A Closed Chain of Disoriented &#38;
    Luminous Robots with Limited Visibility ,” in <i>Stabilization, Safety, and Security
    of Distributed Systems - 22nd International Symposium, SSS 2020, Austin, Texas,
    USA, November 18-21, 2020, Proceedings </i>, 2020, vol. 12514, pp. 60–64.'
  mla: 'Castenow, Jannik, et al. “Brief Announcement: Gathering in Linear Time: A
    Closed Chain of Disoriented &#38; Luminous Robots with Limited Visibility .” <i>Stabilization,
    Safety, and Security of Distributed Systems - 22nd International Symposium, SSS
    2020, Austin, Texas, USA, November 18-21, 2020, Proceedings </i>, edited by Stéphane  Devismes
    and Neeraj  Mittal, vol. 12514, Springer, 2020, pp. 60–64, doi:<a href="https://doi.org/10.1007/978-3-030-64348-5_5">10.1007/978-3-030-64348-5_5</a>.'
  short: 'J. Castenow, J. Harbig, D. Jung, T. Knollmann, F. Meyer auf der Heide, in:
    S. Devismes, N.  Mittal (Eds.), Stabilization, Safety, and Security of Distributed
    Systems - 22nd International Symposium, SSS 2020, Austin, Texas, USA, November
    18-21, 2020, Proceedings , Springer, 2020, pp. 60–64.'
date_created: 2020-10-23T08:50:28Z
date_updated: 2022-01-06T06:54:21Z
department:
- _id: '63'
doi: 10.1007/978-3-030-64348-5_5
editor:
- first_name: 'Stéphane '
  full_name: 'Devismes, Stéphane '
  last_name: Devismes
- first_name: Neeraj
  full_name: ' Mittal, Neeraj'
  last_name: ' Mittal'
external_id:
  arxiv:
  - '2010.04424 '
intvolume: '     12514'
language:
- iso: eng
page: 60-64
publication: 'Stabilization, Safety, and Security of Distributed Systems - 22nd International
  Symposium, SSS 2020, Austin, Texas, USA, November 18-21, 2020, Proceedings '
publication_identifier:
  isbn:
  - 978-3-030-64347-8
publication_status: published
publisher: Springer
series_title: Lecture Notes in Computer Science (LNCS)
status: public
title: 'Brief Announcement: Gathering in Linear Time: A Closed Chain of Disoriented
  & Luminous Robots with Limited Visibility '
type: conference
user_id: '38705'
volume: 12514
year: '2020'
...
