---
_id: '185'
author:
- first_name: Christopher
  full_name: Schmidt, Christopher
  last_name: Schmidt
citation:
  ama: Schmidt C. <i>Kundenbewertungen im Online-Handel – Alles Betrug?</i> Universität
    Paderborn; 2016.
  apa: Schmidt, C. (2016). <i>Kundenbewertungen im Online-Handel – Alles Betrug?</i>
    Universität Paderborn.
  bibtex: '@book{Schmidt_2016, title={Kundenbewertungen im Online-Handel – Alles Betrug?},
    publisher={Universität Paderborn}, author={Schmidt, Christopher}, year={2016}
    }'
  chicago: Schmidt, Christopher. <i>Kundenbewertungen im Online-Handel – Alles Betrug?</i>
    Universität Paderborn, 2016.
  ieee: C. Schmidt, <i>Kundenbewertungen im Online-Handel – Alles Betrug?</i> Universität
    Paderborn, 2016.
  mla: Schmidt, Christopher. <i>Kundenbewertungen im Online-Handel – Alles Betrug?</i>
    Universität Paderborn, 2016.
  short: C. Schmidt, Kundenbewertungen im Online-Handel – Alles Betrug?, Universität
    Paderborn, 2016.
date_created: 2017-10-17T12:41:28Z
date_updated: 2022-01-06T06:53:36Z
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '8'
  name: SFB 901 - Subprojekt A4
- _id: '2'
  name: SFB 901 - Project Area A
publisher: Universität Paderborn
status: public
title: Kundenbewertungen im Online-Handel – Alles Betrug?
type: bachelorsthesis
user_id: '477'
year: '2016'
...
---
_id: '2271'
author:
- first_name: Aref
  full_name: Hesso, Aref
  last_name: Hesso
citation:
  ama: 'Hesso A. <i>Die Rolle der Reputation: Die Entstehung, der Aufbau, die Messung
    und die Auswirkung der Reputation auf Kunden und Unternehmen</i>. Universität
    Paderborn; 2016.'
  apa: 'Hesso, A. (2016). <i>Die Rolle der Reputation: Die Entstehung, der Aufbau,
    die Messung und die Auswirkung der Reputation auf Kunden und Unternehmen</i>.
    Universität Paderborn.'
  bibtex: '@book{Hesso_2016, title={Die Rolle der Reputation: Die Entstehung, der
    Aufbau, die Messung und die Auswirkung der Reputation auf Kunden und Unternehmen},
    publisher={Universität Paderborn}, author={Hesso, Aref}, year={2016} }'
  chicago: 'Hesso, Aref. <i>Die Rolle der Reputation: Die Entstehung, der Aufbau,
    die Messung und die Auswirkung der Reputation auf Kunden und Unternehmen</i>.
    Universität Paderborn, 2016.'
  ieee: 'A. Hesso, <i>Die Rolle der Reputation: Die Entstehung, der Aufbau, die Messung
    und die Auswirkung der Reputation auf Kunden und Unternehmen</i>. Universität
    Paderborn, 2016.'
  mla: 'Hesso, Aref. <i>Die Rolle der Reputation: Die Entstehung, der Aufbau, die
    Messung und die Auswirkung der Reputation auf Kunden und Unternehmen</i>. Universität
    Paderborn, 2016.'
  short: 'A. Hesso, Die Rolle der Reputation: Die Entstehung, der Aufbau, die Messung
    und die Auswirkung der Reputation auf Kunden und Unternehmen, Universität Paderborn,
    2016.'
date_created: 2018-04-10T09:56:14Z
date_updated: 2022-01-06T06:55:39Z
department:
- _id: '19'
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '8'
  name: SFB 901 - Subproject A4
publisher: Universität Paderborn
status: public
title: 'Die Rolle der Reputation: Die Entstehung, der Aufbau, die Messung und die
  Auswirkung der Reputation auf Kunden und Unternehmen'
type: mastersthesis
user_id: '477'
year: '2016'
...
---
_id: '220'
author:
- first_name: Matthias
  full_name: Keller, Matthias
  last_name: Keller
citation:
  ama: Keller M. <i>Application Deployment at Distributed Clouds</i>. Universität
    Paderborn; 2016.
  apa: Keller, M. (2016). <i>Application Deployment at Distributed Clouds</i>. Universität
    Paderborn.
  bibtex: '@book{Keller_2016, title={Application Deployment at Distributed Clouds},
    publisher={Universität Paderborn}, author={Keller, Matthias}, year={2016} }'
  chicago: Keller, Matthias. <i>Application Deployment at Distributed Clouds</i>.
    Universität Paderborn, 2016.
  ieee: M. Keller, <i>Application Deployment at Distributed Clouds</i>. Universität
    Paderborn, 2016.
  mla: Keller, Matthias. <i>Application Deployment at Distributed Clouds</i>. Universität
    Paderborn, 2016.
  short: M. Keller, Application Deployment at Distributed Clouds, Universität Paderborn,
    2016.
date_created: 2017-10-17T12:41:34Z
date_updated: 2022-01-06T06:55:22Z
ddc:
- '040'
department:
- _id: '75'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T10:37:11Z
  date_updated: 2018-03-21T10:37:11Z
  file_id: '1513'
  file_name: 220-Keller_PhD-Theses_01.pdf
  file_size: 7467820
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T10:37:11Z
has_accepted_license: '1'
project:
- _id: '1'
  name: SFB 901
- _id: '6'
  name: SFB 901 - Subprojekt A2
- _id: '16'
  name: SFB 901 - Subprojekt C4
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
title: Application Deployment at Distributed Clouds
type: dissertation
user_id: '477'
year: '2016'
...
---
_id: '5762'
abstract:
- lang: eng
  text: "This paper introduces the problem of communication pattern adaption for a
    distributed self-adjusting binary search tree. We propose a simple local algorithm
    that is closely related to the over thirty-year-old idea of splay trees and evaluate
    its adaption performance in the distributed scenario if different communication
    patterns are provided. \r\nTo do so, the process of self-adjustment is modeled
    similarly to a basic network creation game in which the nodes want to communicate
    with only a certain subset of all nodes. \r\nWe show that, in general, the game
    (i.e., the process of local adjustments) does not converge, and that convergence
    is related to certain structures of the communication interests, which we call
    conflicts. \r\nWe classify conflicts and show that for two communication scenarios
    in which convergence is guaranteed, the self-adjusting tree performs well. \r\nFurthermore,
    we investigate the different classes of conflicts separately and show that, for
    a certain class of conflicts, the performance of the tree network is asymptotically
    as good as the performance for converging instances.\r\nHowever, for the other
    conflict classes, a distributed self-adjusting binary search tree adapts poorly."
author:
- first_name: Thim Frederik
  full_name: Strothmann, Thim Frederik
  id: '11319'
  last_name: Strothmann
citation:
  ama: Strothmann TF. The Impact of Communication Patterns on Distributed Self-Adjusting
    Binary Search Tree. <i>Journal of Graph Algorithms and Applications</i>. 2016;20(1):79-100.
    doi:<a href="https://doi.org/10.7155/jgaa.00385">10.7155/jgaa.00385</a>
  apa: Strothmann, T. F. (2016). The Impact of Communication Patterns on Distributed
    Self-Adjusting Binary Search Tree. <i>Journal of Graph Algorithms and Applications</i>,
    <i>20</i>(1), 79–100. <a href="https://doi.org/10.7155/jgaa.00385">https://doi.org/10.7155/jgaa.00385</a>
  bibtex: '@article{Strothmann_2016, title={The Impact of Communication Patterns on
    Distributed Self-Adjusting Binary Search Tree}, volume={20}, DOI={<a href="https://doi.org/10.7155/jgaa.00385">10.7155/jgaa.00385</a>},
    number={1}, journal={Journal of Graph Algorithms and Applications}, publisher={Journal
    of Graph Algorithms and Applications}, author={Strothmann, Thim Frederik}, year={2016},
    pages={79–100} }'
  chicago: 'Strothmann, Thim Frederik. “The Impact of Communication Patterns on Distributed
    Self-Adjusting Binary Search Tree.” <i>Journal of Graph Algorithms and Applications</i>
    20, no. 1 (2016): 79–100. <a href="https://doi.org/10.7155/jgaa.00385">https://doi.org/10.7155/jgaa.00385</a>.'
  ieee: T. F. Strothmann, “The Impact of Communication Patterns on Distributed Self-Adjusting
    Binary Search Tree,” <i>Journal of Graph Algorithms and Applications</i>, vol.
    20, no. 1, pp. 79–100, 2016.
  mla: Strothmann, Thim Frederik. “The Impact of Communication Patterns on Distributed
    Self-Adjusting Binary Search Tree.” <i>Journal of Graph Algorithms and Applications</i>,
    vol. 20, no. 1, Journal of Graph Algorithms and Applications, 2016, pp. 79–100,
    doi:<a href="https://doi.org/10.7155/jgaa.00385">10.7155/jgaa.00385</a>.
  short: T.F. Strothmann, Journal of Graph Algorithms and Applications 20 (2016) 79–100.
date_created: 2018-11-19T15:33:50Z
date_updated: 2022-01-06T07:02:38Z
ddc:
- '040'
department:
- _id: '79'
doi: 10.7155/jgaa.00385
file:
- access_level: closed
  content_type: application/pdf
  creator: thim
  date_created: 2018-11-27T11:58:08Z
  date_updated: 2018-11-27T11:58:08Z
  file_id: '5912'
  file_name: Strothmann2016.20.1.pdf
  file_size: 2324066
  relation: main_file
  success: 1
file_date_updated: 2018-11-27T11:58:08Z
has_accepted_license: '1'
intvolume: '        20'
issue: '1'
language:
- iso: eng
page: 79-100
project:
- _id: '1'
  name: SFB 901
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '5'
  name: SFB 901 - Subproject A1
publication: Journal of Graph Algorithms and Applications
publication_identifier:
  issn:
  - 1526-1719
publication_status: published
publisher: Journal of Graph Algorithms and Applications
quality_controlled: '1'
status: public
title: The Impact of Communication Patterns on Distributed Self-Adjusting Binary Search
  Tree
type: journal_article
user_id: '477'
volume: 20
year: '2016'
...
---
_id: '4374'
author:
- first_name: Steffen
  full_name: Zimmermann, Steffen
  last_name: Zimmermann
- first_name: Philipp
  full_name: Herrmann, Philipp
  last_name: Herrmann
- first_name: Dennis
  full_name: Kundisch, Dennis
  id: '21117'
  last_name: Kundisch
- first_name: Barrie
  full_name: Nault, Barrie
  last_name: Nault
citation:
  ama: 'Zimmermann S, Herrmann P, Kundisch D, Nault B. How do different Sources of
    the Variance of Online Consumer Ratings matter? In: <i>Workshop on IS Design and
    Economic Behavior (ISDEB)</i>. ; 2016.'
  apa: Zimmermann, S., Herrmann, P., Kundisch, D., &#38; Nault, B. (2016). How do
    different Sources of the Variance of Online Consumer Ratings matter? In <i>Workshop
    on IS Design and Economic Behavior (ISDEB)</i>. Ilmenau, Germany.
  bibtex: '@inproceedings{Zimmermann_Herrmann_Kundisch_Nault_2016, title={How do different
    Sources of the Variance of Online Consumer Ratings matter?}, booktitle={Workshop
    on IS Design and Economic Behavior (ISDEB)}, author={Zimmermann, Steffen and Herrmann,
    Philipp and Kundisch, Dennis and Nault, Barrie}, year={2016} }'
  chicago: Zimmermann, Steffen, Philipp Herrmann, Dennis Kundisch, and Barrie Nault.
    “How Do Different Sources of the Variance of Online Consumer Ratings Matter?”
    In <i>Workshop on IS Design and Economic Behavior (ISDEB)</i>, 2016.
  ieee: S. Zimmermann, P. Herrmann, D. Kundisch, and B. Nault, “How do different Sources
    of the Variance of Online Consumer Ratings matter?,” in <i>Workshop on IS Design
    and Economic Behavior (ISDEB)</i>, Ilmenau, Germany, 2016.
  mla: Zimmermann, Steffen, et al. “How Do Different Sources of the Variance of Online
    Consumer Ratings Matter?” <i>Workshop on IS Design and Economic Behavior (ISDEB)</i>,
    2016.
  short: 'S. Zimmermann, P. Herrmann, D. Kundisch, B. Nault, in: Workshop on IS Design
    and Economic Behavior (ISDEB), 2016.'
conference:
  location: Ilmenau, Germany
  name: Workshop on IS Design and Economic Behavior (ISDEB)
date_created: 2018-09-10T13:02:44Z
date_updated: 2022-01-06T07:00:59Z
ddc:
- '330'
department:
- _id: '276'
file:
- access_level: closed
  content_type: application/pdf
  creator: abursig
  date_created: 2019-01-29T14:38:25Z
  date_updated: 2019-01-29T14:38:25Z
  file_id: '7242'
  file_name: Rating Variance_CIST_Abstract.pdf
  file_size: 83968
  relation: main_file
  success: 1
file_date_updated: 2019-01-29T14:38:25Z
has_accepted_license: '1'
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '8'
  name: SFB 901 - Subproject A4
publication: Workshop on IS Design and Economic Behavior (ISDEB)
quality_controlled: '1'
status: public
title: How do different Sources of the Variance of Online Consumer Ratings matter?
type: conference_abstract
user_id: '477'
year: '2016'
...
---
_id: '5407'
author:
- first_name: Jörn
  full_name: Koepe, Jörn
  last_name: Koepe
citation:
  ama: Koepe J. <i>Price-Based Allocation Games</i>. Universität Paderborn; 2016.
  apa: Koepe, J. (2016). <i>Price-Based Allocation Games</i>. Universität Paderborn.
  bibtex: '@book{Koepe_2016, title={Price-Based Allocation Games}, publisher={Universität
    Paderborn}, author={Koepe, Jörn}, year={2016} }'
  chicago: Koepe, Jörn. <i>Price-Based Allocation Games</i>. Universität Paderborn,
    2016.
  ieee: J. Koepe, <i>Price-Based Allocation Games</i>. Universität Paderborn, 2016.
  mla: Koepe, Jörn. <i>Price-Based Allocation Games</i>. Universität Paderborn, 2016.
  short: J. Koepe, Price-Based Allocation Games, Universität Paderborn, 2016.
date_created: 2018-11-07T09:45:57Z
date_updated: 2022-01-06T07:01:51Z
department:
- _id: '63'
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '7'
  name: SFB 901 - Subproject A3
publisher: Universität Paderborn
status: public
title: Price-Based Allocation Games
type: bachelorsthesis
user_id: '477'
year: '2016'
...
---
_id: '688'
author:
- first_name: Damian
  full_name: Kutzias, Damian
  last_name: Kutzias
citation:
  ama: Kutzias D. <i>Friendship Processes in Network Creation Games</i>. Universität
    Paderborn; 2016.
  apa: Kutzias, D. (2016). <i>Friendship Processes in Network Creation Games</i>.
    Universität Paderborn.
  bibtex: '@book{Kutzias_2016, title={Friendship Processes in Network Creation Games},
    publisher={Universität Paderborn}, author={Kutzias, Damian}, year={2016} }'
  chicago: Kutzias, Damian. <i>Friendship Processes in Network Creation Games</i>.
    Universität Paderborn, 2016.
  ieee: D. Kutzias, <i>Friendship Processes in Network Creation Games</i>. Universität
    Paderborn, 2016.
  mla: Kutzias, Damian. <i>Friendship Processes in Network Creation Games</i>. Universität
    Paderborn, 2016.
  short: D. Kutzias, Friendship Processes in Network Creation Games, Universität Paderborn,
    2016.
date_created: 2017-11-14T06:50:35Z
date_updated: 2022-01-06T07:03:23Z
department:
- _id: '63'
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '5'
  name: SFB 901 - Subprojekt A1
- _id: '2'
  name: SFB 901 - Project Area A
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
title: Friendship Processes in Network Creation Games
type: mastersthesis
user_id: '477'
year: '2016'
...
---
_id: '689'
author:
- first_name: Johannes Sebastian
  full_name: Schaefer, Johannes Sebastian
  id: '30291'
  last_name: Schaefer
citation:
  ama: Schaefer JS. <i>Routing Algorithms on Delayed Networks for Disaster Management
    Support</i>. Universität Paderborn; 2016.
  apa: Schaefer, J. S. (2016). <i>Routing Algorithms on Delayed Networks for Disaster
    Management Support</i>. Universität Paderborn.
  bibtex: '@book{Schaefer_2016, title={Routing Algorithms on Delayed Networks for
    Disaster Management Support}, publisher={Universität Paderborn}, author={Schaefer,
    Johannes Sebastian}, year={2016} }'
  chicago: Schaefer, Johannes Sebastian. <i>Routing Algorithms on Delayed Networks
    for Disaster Management Support</i>. Universität Paderborn, 2016.
  ieee: J. S. Schaefer, <i>Routing Algorithms on Delayed Networks for Disaster Management
    Support</i>. Universität Paderborn, 2016.
  mla: Schaefer, Johannes Sebastian. <i>Routing Algorithms on Delayed Networks for
    Disaster Management Support</i>. Universität Paderborn, 2016.
  short: J.S. Schaefer, Routing Algorithms on Delayed Networks for Disaster Management
    Support, Universität Paderborn, 2016.
date_created: 2017-11-14T06:51:37Z
date_updated: 2022-01-06T07:03:23Z
department:
- _id: '63'
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '5'
  name: SFB 901 - Subprojekt A1
- _id: '2'
  name: SFB 901 - Project Area A
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
title: Routing Algorithms on Delayed Networks for Disaster Management Support
type: mastersthesis
user_id: '477'
year: '2016'
...
---
_id: '1082'
author:
- first_name: Tobias
  full_name: Handirk, Tobias
  last_name: Handirk
citation:
  ama: Handirk T. <i>Über die Rolle von Informationen in Verkehrsnetzwerken</i>. Universität
    Paderborn; 2016.
  apa: Handirk, T. (2016). <i>Über die Rolle von Informationen in Verkehrsnetzwerken</i>.
    Universität Paderborn.
  bibtex: '@book{Handirk_2016, title={Über die Rolle von Informationen in Verkehrsnetzwerken},
    publisher={Universität Paderborn}, author={Handirk, Tobias}, year={2016} }'
  chicago: Handirk, Tobias. <i>Über die Rolle von Informationen in Verkehrsnetzwerken</i>.
    Universität Paderborn, 2016.
  ieee: T. Handirk, <i>Über die Rolle von Informationen in Verkehrsnetzwerken</i>.
    Universität Paderborn, 2016.
  mla: Handirk, Tobias. <i>Über die Rolle von Informationen in Verkehrsnetzwerken</i>.
    Universität Paderborn, 2016.
  short: T. Handirk, Über die Rolle von Informationen in Verkehrsnetzwerken, Universität
    Paderborn, 2016.
date_created: 2017-12-19T10:10:17Z
date_updated: 2022-01-06T06:50:51Z
department:
- _id: '63'
- _id: '541'
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '7'
  name: SFB 901 - Subproject A3
- _id: '2'
  name: SFB 901 - Project Area A
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Alexander
  full_name: Skopalik, Alexander
  id: '40384'
  last_name: Skopalik
title: Über die Rolle von Informationen in Verkehrsnetzwerken
type: bachelorsthesis
user_id: '14052'
year: '2016'
...
---
_id: '128'
author:
- first_name: Katharina
  full_name: Bernhardt, Katharina
  last_name: Bernhardt
citation:
  ama: Bernhardt K. <i>Zertifikate als Qualitätssignal – Wie die Zertifizierung von
    Produkten und Verkäufern das Vertrauen von Kunden im Onlinehandel beeinflussen</i>.
    Universität Paderborn; 2016.
  apa: Bernhardt, K. (2016). <i>Zertifikate als Qualitätssignal – Wie die Zertifizierung
    von Produkten und Verkäufern das Vertrauen von Kunden im Onlinehandel beeinflussen</i>.
    Universität Paderborn.
  bibtex: '@book{Bernhardt_2016, title={Zertifikate als Qualitätssignal – Wie die
    Zertifizierung von Produkten und Verkäufern das Vertrauen von Kunden im Onlinehandel
    beeinflussen}, publisher={Universität Paderborn}, author={Bernhardt, Katharina},
    year={2016} }'
  chicago: Bernhardt, Katharina. <i>Zertifikate als Qualitätssignal – Wie die Zertifizierung
    von Produkten und Verkäufern das Vertrauen von Kunden im Onlinehandel beeinflussen</i>.
    Universität Paderborn, 2016.
  ieee: K. Bernhardt, <i>Zertifikate als Qualitätssignal – Wie die Zertifizierung
    von Produkten und Verkäufern das Vertrauen von Kunden im Onlinehandel beeinflussen</i>.
    Universität Paderborn, 2016.
  mla: Bernhardt, Katharina. <i>Zertifikate als Qualitätssignal – Wie die Zertifizierung
    von Produkten und Verkäufern das Vertrauen von Kunden im Onlinehandel beeinflussen</i>.
    Universität Paderborn, 2016.
  short: K. Bernhardt, Zertifikate als Qualitätssignal – Wie die Zertifizierung von
    Produkten und Verkäufern das Vertrauen von Kunden im Onlinehandel beeinflussen,
    Universität Paderborn, 2016.
date_created: 2017-10-17T12:41:16Z
date_updated: 2022-01-06T06:51:20Z
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '8'
  name: SFB 901 - Subprojekt A4
- _id: '2'
  name: SFB 901 - Project Area A
publisher: Universität Paderborn
status: public
title: Zertifikate als Qualitätssignal – Wie die Zertifizierung von Produkten und
  Verkäufern das Vertrauen von Kunden im Onlinehandel beeinflussen
type: bachelorsthesis
user_id: '477'
year: '2016'
...
---
_id: '130'
author:
- first_name: Jessica
  full_name: Kaczorkowski, Jessica
  last_name: Kaczorkowski
citation:
  ama: Kaczorkowski J. <i>Wettbewerb im Internet - Eine wettbewerbspolitische Analyse
    des E-Commerce</i>. Universität Paderborn; 2016.
  apa: Kaczorkowski, J. (2016). <i>Wettbewerb im Internet - Eine wettbewerbspolitische
    Analyse des E-Commerce</i>. Universität Paderborn.
  bibtex: '@book{Kaczorkowski_2016, title={Wettbewerb im Internet - Eine wettbewerbspolitische
    Analyse des E-Commerce}, publisher={Universität Paderborn}, author={Kaczorkowski,
    Jessica}, year={2016} }'
  chicago: Kaczorkowski, Jessica. <i>Wettbewerb im Internet - Eine wettbewerbspolitische
    Analyse des E-Commerce</i>. Universität Paderborn, 2016.
  ieee: J. Kaczorkowski, <i>Wettbewerb im Internet - Eine wettbewerbspolitische Analyse
    des E-Commerce</i>. Universität Paderborn, 2016.
  mla: Kaczorkowski, Jessica. <i>Wettbewerb im Internet - Eine wettbewerbspolitische
    Analyse des E-Commerce</i>. Universität Paderborn, 2016.
  short: J. Kaczorkowski, Wettbewerb im Internet - Eine wettbewerbspolitische Analyse
    des E-Commerce, Universität Paderborn, 2016.
date_created: 2017-10-17T12:41:17Z
date_updated: 2022-01-06T06:51:27Z
department:
- _id: '280'
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '7'
  name: SFB 901 - Subprojekt A3
- _id: '2'
  name: SFB 901 - Project Area A
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Burkhard
  full_name: Hehenkamp, Burkhard
  id: '37339'
  last_name: Hehenkamp
title: Wettbewerb im Internet - Eine wettbewerbspolitische Analyse des E-Commerce
type: mastersthesis
user_id: '42447'
year: '2016'
...
---
_id: '154'
author:
- first_name: Andreas
  full_name: Cord-Landwehr, Andreas
  last_name: Cord-Landwehr
citation:
  ama: Cord-Landwehr A. <i>Selfish Network Creation - On Variants of Network Creation
    Games</i>. Vol 353. Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn;
    2016.
  apa: Cord-Landwehr, A. (2016). <i>Selfish Network Creation - On Variants of Network
    Creation Games</i> (Vol. 353). Verlagsschriftenreihe des Heinz Nixdorf Instituts,
    Paderborn.
  bibtex: '@book{Cord-Landwehr_2016, series={Verlagsschriftenreihe des Heinz Nixdorf
    Instituts, Paderborn}, title={Selfish Network Creation - On Variants of Network
    Creation Games}, volume={353}, publisher={Verlagsschriftenreihe des Heinz Nixdorf
    Instituts, Paderborn}, author={Cord-Landwehr, Andreas}, year={2016}, collection={Verlagsschriftenreihe
    des Heinz Nixdorf Instituts, Paderborn} }'
  chicago: Cord-Landwehr, Andreas. <i>Selfish Network Creation - On Variants of Network
    Creation Games</i>. Vol. 353. Verlagsschriftenreihe Des Heinz Nixdorf Instituts,
    Paderborn. Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, 2016.
  ieee: A. Cord-Landwehr, <i>Selfish Network Creation - On Variants of Network Creation
    Games</i>, vol. 353. Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn,
    2016.
  mla: Cord-Landwehr, Andreas. <i>Selfish Network Creation - On Variants of Network
    Creation Games</i>. Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn,
    2016.
  short: A. Cord-Landwehr, Selfish Network Creation - On Variants of Network Creation
    Games, Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, 2016.
date_created: 2017-10-17T12:41:22Z
date_updated: 2022-01-06T06:52:23Z
ddc:
- '040'
department:
- _id: '63'
- _id: '26'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T12:52:03Z
  date_updated: 2018-03-21T12:52:03Z
  file_id: '1551'
  file_name: 154-dissertation.pdf
  file_size: 800101
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T12:52:03Z
has_accepted_license: '1'
intvolume: '       353'
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '5'
  name: SFB 901 - Subprojekt A1
- _id: '2'
  name: SFB 901 - Project Area A
publication_identifier:
  isbn:
  - 978-3-942647-72-4
publisher: Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn
related_material:
  link:
  - relation: confirmation
    url: http://nbn-resolving.de/urn:nbn:de:hbz:466:2-24089
series_title: Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn
status: public
supervisor:
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
title: Selfish Network Creation - On Variants of Network Creation Games
type: dissertation
user_id: '5786'
volume: 353
year: '2016'
...
---
_id: '159'
abstract:
- lang: eng
  text: Abstract—Max-min fairness (MMF) is a widely known approachto a fair allocation
    of bandwidth to each of the usersin a network. This allocation can be computed
    by uniformlyraising the bandwidths of all users without violating capacityconstraints.
    We consider an extension of these allocations byraising the bandwidth with arbitrary
    and not necessarily uniformtime-depending velocities (allocation rates). These
    allocationsare used in a game-theoretic context for routing choices, whichwe formalize
    in progressive filling games (PFGs). We present avariety of results for equilibria
    in PFGs. We show that these gamespossess pure Nash and strong equilibria. While
    computation ingeneral is NP-hard, there are polynomial-time algorithms forprominent
    classes of Max-Min-Fair Games (MMFG), includingthe case when all users have the
    same source-destination pair.We characterize prices of anarchy and stability for
    pure Nashand strong equilibria in PFGs and MMFGs when players havedifferent or
    the same source-destination pairs. In addition, weshow that when a designer can
    adjust allocation rates, it is possibleto design games with optimal strong equilibria.
    Some initial resultson polynomial-time algorithms in this direction are also derived.
author:
- first_name: Tobias
  full_name: Harks, Tobias
  last_name: Harks
- first_name: Martin
  full_name: Höfer, Martin
  last_name: Höfer
- first_name: Kevin
  full_name: Schewior, Kevin
  last_name: Schewior
- first_name: Alexander
  full_name: Skopalik, Alexander
  id: '40384'
  last_name: Skopalik
citation:
  ama: Harks T, Höfer M, Schewior K, Skopalik A. Routing Games With Progressive Filling.
    <i>IEEE/ACM Transactions on Networking</i>. 2016;(4):2553-2562. doi:<a href="https://doi.org/10.1109/TNET.2015.2468571">10.1109/TNET.2015.2468571</a>
  apa: Harks, T., Höfer, M., Schewior, K., &#38; Skopalik, A. (2016). Routing Games
    With Progressive Filling. <i>IEEE/ACM Transactions on Networking</i>, (4), 2553–2562.
    <a href="https://doi.org/10.1109/TNET.2015.2468571">https://doi.org/10.1109/TNET.2015.2468571</a>
  bibtex: '@article{Harks_Höfer_Schewior_Skopalik_2016, title={Routing Games With
    Progressive Filling}, DOI={<a href="https://doi.org/10.1109/TNET.2015.2468571">10.1109/TNET.2015.2468571</a>},
    number={4}, journal={IEEE/ACM Transactions on Networking}, publisher={IEEE}, author={Harks,
    Tobias and Höfer, Martin and Schewior, Kevin and Skopalik, Alexander}, year={2016},
    pages={2553–2562} }'
  chicago: 'Harks, Tobias, Martin Höfer, Kevin Schewior, and Alexander Skopalik. “Routing
    Games With Progressive Filling.” <i>IEEE/ACM Transactions on Networking</i>, no.
    4 (2016): 2553–62. <a href="https://doi.org/10.1109/TNET.2015.2468571">https://doi.org/10.1109/TNET.2015.2468571</a>.'
  ieee: T. Harks, M. Höfer, K. Schewior, and A. Skopalik, “Routing Games With Progressive
    Filling,” <i>IEEE/ACM Transactions on Networking</i>, no. 4, pp. 2553–2562, 2016.
  mla: Harks, Tobias, et al. “Routing Games With Progressive Filling.” <i>IEEE/ACM
    Transactions on Networking</i>, no. 4, IEEE, 2016, pp. 2553–62, doi:<a href="https://doi.org/10.1109/TNET.2015.2468571">10.1109/TNET.2015.2468571</a>.
  short: T. Harks, M. Höfer, K. Schewior, A. Skopalik, IEEE/ACM Transactions on Networking
    (2016) 2553–2562.
date_created: 2017-10-17T12:41:23Z
date_updated: 2022-01-06T06:52:40Z
ddc:
- '040'
department:
- _id: '63'
- _id: '541'
doi: 10.1109/TNET.2015.2468571
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T12:48:02Z
  date_updated: 2018-03-21T12:48:02Z
  file_id: '1547'
  file_name: 159-Harks-Hoefer-Schewior-Skopalik2016.pdf
  file_size: 1655309
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T12:48:02Z
has_accepted_license: '1'
issue: '4'
language:
- iso: eng
page: 2553 - 2562
project:
- _id: '1'
  name: SFB 901
- _id: '7'
  name: SFB 901 - Subprojekt A3
- _id: '2'
  name: SFB 901 - Project Area A
publication: IEEE/ACM Transactions on Networking
publisher: IEEE
status: public
title: Routing Games With Progressive Filling
type: journal_article
user_id: '477'
year: '2016'
...
---
_id: '149'
abstract:
- lang: eng
  text: 'In this paper we consider a strategic variant of the online facility location
    problem. Given is a graph in which each node serves two roles: it is a strategic
    client stating requests as well as a potential location for a facility. In each
    time step one client states a request which induces private costs equal to the
    distance to the closest facility. Before serving, the clients may collectively
    decide to open new facilities, sharing the corresponding price. Instead of optimizing
    the global costs, each client acts selfishly. The prices of new facilities vary
    between nodes and also change over time, but are always bounded by some fixed
    value α. Both the requests as well as the facility prices are given by an online
    sequence and are not known in advance.We characterize the optimal strategies of
    the clients and analyze their overall performance in comparison to a centralized
    offline solution. If all players optimize their own competitiveness, the global
    performance of the system is O(√α⋅α) times worse than the offline optimum. A restriction
    to a natural subclass of strategies improves this result to O(α). We also show
    that for fixed facility costs, we can find strategies such that this bound further
    improves to O(√α).'
author:
- first_name: Maximilian
  full_name: Drees, Maximilian
  last_name: Drees
- first_name: Björn
  full_name: Feldkord, Björn
  id: '22704'
  last_name: Feldkord
- first_name: Alexander
  full_name: Skopalik, Alexander
  id: '40384'
  last_name: Skopalik
citation:
  ama: 'Drees M, Feldkord B, Skopalik A. Strategic Online Facility Location. In: <i>Proceedings
    of the 10th Annual International Conference on Combinatorial Optimization and
    Applications (COCOA)</i>. LNCS. ; 2016:593--607. doi:<a href="https://doi.org/10.1007/978-3-319-48749-6_43">10.1007/978-3-319-48749-6_43</a>'
  apa: Drees, M., Feldkord, B., &#38; Skopalik, A. (2016). Strategic Online Facility
    Location. In <i>Proceedings of the 10th Annual International Conference on Combinatorial
    Optimization and Applications (COCOA)</i> (pp. 593--607). <a href="https://doi.org/10.1007/978-3-319-48749-6_43">https://doi.org/10.1007/978-3-319-48749-6_43</a>
  bibtex: '@inproceedings{Drees_Feldkord_Skopalik_2016, series={LNCS}, title={Strategic
    Online Facility Location}, DOI={<a href="https://doi.org/10.1007/978-3-319-48749-6_43">10.1007/978-3-319-48749-6_43</a>},
    booktitle={Proceedings of the 10th Annual International Conference on Combinatorial
    Optimization and Applications (COCOA)}, author={Drees, Maximilian and Feldkord,
    Björn and Skopalik, Alexander}, year={2016}, pages={593--607}, collection={LNCS}
    }'
  chicago: Drees, Maximilian, Björn Feldkord, and Alexander Skopalik. “Strategic Online
    Facility Location.” In <i>Proceedings of the 10th Annual International Conference
    on Combinatorial Optimization and Applications (COCOA)</i>, 593--607. LNCS, 2016.
    <a href="https://doi.org/10.1007/978-3-319-48749-6_43">https://doi.org/10.1007/978-3-319-48749-6_43</a>.
  ieee: M. Drees, B. Feldkord, and A. Skopalik, “Strategic Online Facility Location,”
    in <i>Proceedings of the 10th Annual International Conference on Combinatorial
    Optimization and Applications (COCOA)</i>, 2016, pp. 593--607.
  mla: Drees, Maximilian, et al. “Strategic Online Facility Location.” <i>Proceedings
    of the 10th Annual International Conference on Combinatorial Optimization and
    Applications (COCOA)</i>, 2016, pp. 593--607, doi:<a href="https://doi.org/10.1007/978-3-319-48749-6_43">10.1007/978-3-319-48749-6_43</a>.
  short: 'M. Drees, B. Feldkord, A. Skopalik, in: Proceedings of the 10th Annual International
    Conference on Combinatorial Optimization and Applications (COCOA), 2016, pp. 593--607.'
date_created: 2017-10-17T12:41:21Z
date_updated: 2022-01-06T06:52:10Z
ddc:
- '040'
department:
- _id: '63'
- _id: '541'
doi: 10.1007/978-3-319-48749-6_43
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T12:55:43Z
  date_updated: 2018-03-21T12:55:43Z
  file_id: '1553'
  file_name: 149-chp_3A10.1007_2F978-3-319-48749-6_43.pdf
  file_size: 236253
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T12:55:43Z
has_accepted_license: '1'
language:
- iso: eng
page: 593--607
project:
- _id: '1'
  name: SFB 901
- _id: '5'
  name: SFB 901 - Subprojekt A1
- _id: '7'
  name: SFB 901 - Subproject A3
- _id: '2'
  name: SFB 901 - Project Area A
publication: Proceedings of the 10th Annual International Conference on Combinatorial
  Optimization and Applications (COCOA)
series_title: LNCS
status: public
title: Strategic Online Facility Location
type: conference
user_id: '477'
year: '2016'
...
---
_id: '139'
abstract:
- lang: eng
  text: 'We consider online optimization problems in which certain goods have to be
    acquired in order to provide a service or infrastructure. Classically, decisions
    for such problems are considered as final: one buys the goods. However, in many
    real world applications, there is a shift away from the idea of buying goods.
    Instead, leasing is often a more flexible and lucrative business model. Research
    has realized this shift and recently initiated the theoretical study of leasing
    models (Anthony and Gupta in Proceedings of the integer programming and combinatorial
    optimization: 12th International IPCO Conference, Ithaca, NY, USA, June 25–27,
    2007; Meyerson in Proceedings of the 46th Annual IEEE Symposium on Foundations
    of Computer Science (FOCS 2005), 23–25 Oct 2005, Pittsburgh, PA, USA, 2005; Nagarajan
    and Williamson in Discret Optim 10(4):361–370, 2013) We extend this line of work
    and suggest a more systematic study of leasing aspects for a class of online optimization
    problems. We provide two major technical results. We introduce the leasing variant
    of online set multicover and give an O(log(mK)logn)-competitive algorithm (with
    n, m, and K being the number of elements, sets, and leases, respectively). Our
    results also imply improvements for the non-leasing variant of online set cover.
    Moreover, we extend results for the leasing variant of online facility location.
    Nagarajan and Williamson (Discret Optim 10(4):361–370, 2013) gave an O(Klogn)-competitive
    algorithm for this problem (with n and K being the number of clients and leases,
    respectively). We remove the dependency on n (and, thereby, on time). In general,
    this leads to a bound of O(lmaxloglmax) (with the maximal lease length lmax).
    For many natural problem instances, the bound improves to O(K2).'
author:
- first_name: Sebastian
  full_name: Abshoff, Sebastian
  last_name: Abshoff
- first_name: Peter
  full_name: Kling, Peter
  last_name: Kling
- first_name: Christine
  full_name: Markarian, Christine
  id: '37612'
  last_name: Markarian
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
- first_name: 'Peter '
  full_name: 'Pietrzyk, Peter '
  last_name: Pietrzyk
citation:
  ama: Abshoff S, Kling P, Markarian C, Meyer auf der Heide F, Pietrzyk P. Towards
    the price of leasing online. <i>Journal of Combinatorial Optimization</i>. 2016;(4):1197--1216.
    doi:<a href="https://doi.org/10.1007/s10878-015-9915-5">10.1007/s10878-015-9915-5</a>
  apa: Abshoff, S., Kling, P., Markarian, C., Meyer auf der Heide, F., &#38; Pietrzyk,
    P. (2016). Towards the price of leasing online. <i>Journal of Combinatorial Optimization</i>,
    (4), 1197--1216. <a href="https://doi.org/10.1007/s10878-015-9915-5">https://doi.org/10.1007/s10878-015-9915-5</a>
  bibtex: '@article{Abshoff_Kling_Markarian_Meyer auf der Heide_Pietrzyk_2016, title={Towards
    the price of leasing online}, DOI={<a href="https://doi.org/10.1007/s10878-015-9915-5">10.1007/s10878-015-9915-5</a>},
    number={4}, journal={Journal of Combinatorial Optimization}, publisher={Springer},
    author={Abshoff, Sebastian and Kling, Peter and Markarian, Christine and Meyer
    auf der Heide, Friedhelm and Pietrzyk, Peter }, year={2016}, pages={1197--1216}
    }'
  chicago: 'Abshoff, Sebastian, Peter Kling, Christine Markarian, Friedhelm Meyer
    auf der Heide, and Peter  Pietrzyk. “Towards the Price of Leasing Online.” <i>Journal
    of Combinatorial Optimization</i>, no. 4 (2016): 1197--1216. <a href="https://doi.org/10.1007/s10878-015-9915-5">https://doi.org/10.1007/s10878-015-9915-5</a>.'
  ieee: S. Abshoff, P. Kling, C. Markarian, F. Meyer auf der Heide, and P. Pietrzyk,
    “Towards the price of leasing online,” <i>Journal of Combinatorial Optimization</i>,
    no. 4, pp. 1197--1216, 2016.
  mla: Abshoff, Sebastian, et al. “Towards the Price of Leasing Online.” <i>Journal
    of Combinatorial Optimization</i>, no. 4, Springer, 2016, pp. 1197--1216, doi:<a
    href="https://doi.org/10.1007/s10878-015-9915-5">10.1007/s10878-015-9915-5</a>.
  short: S. Abshoff, P. Kling, C. Markarian, F. Meyer auf der Heide, P. Pietrzyk,
    Journal of Combinatorial Optimization (2016) 1197--1216.
date_created: 2017-10-17T12:41:18Z
date_updated: 2022-01-06T06:51:46Z
ddc:
- '000'
department:
- _id: '63'
doi: 10.1007/s10878-015-9915-5
file:
- access_level: closed
  content_type: application/pdf
  creator: ups
  date_created: 2018-11-02T15:57:25Z
  date_updated: 2018-11-02T15:57:25Z
  file_id: '5318'
  file_name: Abshoff-TowardsThePriceOfLeasingOnline.pdf
  file_size: 654903
  relation: main_file
  success: 1
file_date_updated: 2018-11-02T15:57:25Z
has_accepted_license: '1'
issue: '4'
language:
- iso: eng
page: ' 1197--1216'
project:
- _id: '1'
  name: SFB 901
- _id: '5'
  name: SFB 901 - Subprojekt A1
- _id: '16'
  name: SFB 901 - Subprojekt C4
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '4'
  name: SFB 901 - Project Area C
publication: Journal of Combinatorial Optimization
publisher: Springer
status: public
title: Towards the price of leasing online
type: journal_article
user_id: '477'
year: '2016'
...
---
_id: '142'
abstract:
- lang: eng
  text: For overlay networks, the ability to recover from a variety of problems like
    membership changes or faults is a key element to preserve their functionality.
    In recent years, various self-stabilizing overlay networks have been proposed
    that have the advantage of being able to recover from any illegal state. However,
    the vast majority of these networks cannot give any guarantees on its functionality
    while the recovery process is going on. We are especially interested in searchability,
    i.e., the functionality that search messages for a specific identifier are answered
    successfully if a node with that identifier exists in the network. We investigate
    overlay networks that are not only self-stabilizing but that also ensure that
    monotonic searchability is maintained while the recovery process is going on,
    as long as there are no corrupted messages in the system. More precisely, once
    a search message from node u to another node v is successfully delivered, all
    future search messages from u to v succeed as well. Monotonic searchability was
    recently introduced in OPODIS 2015, in which the authors provide a solution for
    a simple line topology.We present the first universal approach to maintain monotonic
    searchability that is applicable to a wide range of topologies. As the base for
    our approach, we introduce a set of primitives for manipulating overlay networks
    that allows us to maintain searchability and show how existing protocols can be
    transformed to use theses primitives.We complement this result with a generic
    search protocol that together with the use of our primitives guarantees monotonic
    searchability.As an additional feature, searching existing nodes with the generic
    search protocol is as fast as searching a node with any other fixed routing protocol
    once the topology has stabilized.
author:
- first_name: Christian
  full_name: Scheideler, Christian
  id: '20792'
  last_name: Scheideler
- first_name: Alexander
  full_name: Setzer, Alexander
  id: '11108'
  last_name: Setzer
- first_name: Thim Frederik
  full_name: Strothmann, Thim Frederik
  id: '11319'
  last_name: Strothmann
citation:
  ama: 'Scheideler C, Setzer A, Strothmann TF. Towards a Universal Approach for Monotonic
    Searchability in Self-stabilizing Overlay Networks. In: <i>Proceedings of the
    30th International Symposium on Distributed Computing (DISC)</i>. LNCS. ; 2016:71--84.
    doi:<a href="https://doi.org/10.1007/978-3-662-53426-7_6">10.1007/978-3-662-53426-7_6</a>'
  apa: Scheideler, C., Setzer, A., &#38; Strothmann, T. F. (2016). Towards a Universal
    Approach for Monotonic Searchability in Self-stabilizing Overlay Networks. In
    <i>Proceedings of the 30th International Symposium on Distributed Computing (DISC)</i>
    (pp. 71--84). <a href="https://doi.org/10.1007/978-3-662-53426-7_6">https://doi.org/10.1007/978-3-662-53426-7_6</a>
  bibtex: '@inproceedings{Scheideler_Setzer_Strothmann_2016, series={LNCS}, title={Towards
    a Universal Approach for Monotonic Searchability in Self-stabilizing Overlay Networks},
    DOI={<a href="https://doi.org/10.1007/978-3-662-53426-7_6">10.1007/978-3-662-53426-7_6</a>},
    booktitle={Proceedings of the 30th International Symposium on Distributed Computing
    (DISC)}, author={Scheideler, Christian and Setzer, Alexander and Strothmann, Thim
    Frederik}, year={2016}, pages={71--84}, collection={LNCS} }'
  chicago: Scheideler, Christian, Alexander Setzer, and Thim Frederik Strothmann.
    “Towards a Universal Approach for Monotonic Searchability in Self-Stabilizing
    Overlay Networks.” In <i>Proceedings of the 30th International Symposium on Distributed
    Computing (DISC)</i>, 71--84. LNCS, 2016. <a href="https://doi.org/10.1007/978-3-662-53426-7_6">https://doi.org/10.1007/978-3-662-53426-7_6</a>.
  ieee: C. Scheideler, A. Setzer, and T. F. Strothmann, “Towards a Universal Approach
    for Monotonic Searchability in Self-stabilizing Overlay Networks,” in <i>Proceedings
    of the 30th International Symposium on Distributed Computing (DISC)</i>, 2016,
    pp. 71--84.
  mla: Scheideler, Christian, et al. “Towards a Universal Approach for Monotonic Searchability
    in Self-Stabilizing Overlay Networks.” <i>Proceedings of the 30th International
    Symposium on Distributed Computing (DISC)</i>, 2016, pp. 71--84, doi:<a href="https://doi.org/10.1007/978-3-662-53426-7_6">10.1007/978-3-662-53426-7_6</a>.
  short: 'C. Scheideler, A. Setzer, T.F. Strothmann, in: Proceedings of the 30th International
    Symposium on Distributed Computing (DISC), 2016, pp. 71--84.'
date_created: 2017-10-17T12:41:19Z
date_updated: 2022-01-06T06:51:56Z
ddc:
- '040'
department:
- _id: '79'
doi: 10.1007/978-3-662-53426-7_6
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T12:59:29Z
  date_updated: 2018-03-21T12:59:29Z
  file_id: '1558'
  file_name: 142-SchSetStrDISC16.pdf
  file_size: 209638
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T12:59:29Z
has_accepted_license: '1'
language:
- iso: eng
page: 71--84
project:
- _id: '1'
  name: SFB 901
- _id: '5'
  name: SFB 901 - Subprojekt A1
- _id: '2'
  name: SFB 901 - Project Area A
publication: Proceedings of the 30th International Symposium on Distributed Computing
  (DISC)
series_title: LNCS
status: public
title: Towards a Universal Approach for Monotonic Searchability in Self-stabilizing
  Overlay Networks
type: conference
user_id: '477'
year: '2016'
...
---
_id: '143'
abstract:
- lang: eng
  text: 'We present an efficient parallel algorithm for the general Monotone Circuit
    Value Problem (MCVP) with n gates and an underlying graph of bounded genus k.
    Our algorithm generalizes a recent result by Limaye et al. who showed that MCVP
    with toroidal embedding (genus 1) is in NC when the input contains a toroidal
    embedding of the circuit. In addition to extending this result from genus 1 to
    any bounded genus k, and unlike the work reported by Limaye et al., we do not
    require a precomputed embedding to be given. Most importantly, our results imply
    that given a P-complete problem, it is possible to find an algorithm that makes
    the problem fall into NC by fixing one or more parameters. Hence, we deduce the
    interesting analogy: Fixed Parameter Parallelizable (FPP) is with respect to P-complete
    what Fixed Parameter Tractable (FPT) is with respect to NP-complete. Similar work
    that uses treewidth as parameter was also presented by Elberfeld et al. in [6].'
author:
- first_name: 'Faisal N. '
  full_name: 'Abu-Khzam, Faisal N. '
  last_name: Abu-Khzam
- first_name: Shouwei
  full_name: Li, Shouwei
  last_name: Li
- first_name: Christine
  full_name: Markarian, Christine
  id: '37612'
  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: 'Abu-Khzam FN, Li S, Markarian C, Meyer auf der Heide F, Podlipyan P. The Monotone
    Circuit Value Problem with Bounded Genus Is in NC. In: <i>Proceedings of the 22nd
    International Conference on Computing and Combinatorics (COCOON)</i>. LNCS. ;
    2016:92-102. doi:<a href="https://doi.org/10.1007/978-3-319-42634-1_8">10.1007/978-3-319-42634-1_8</a>'
  apa: Abu-Khzam, F. N., Li, S., Markarian, C., Meyer auf der Heide, F., &#38; Podlipyan,
    P. (2016). The Monotone Circuit Value Problem with Bounded Genus Is in NC. In
    <i>Proceedings of the 22nd International Conference on Computing and Combinatorics
    (COCOON)</i> (pp. 92–102). <a href="https://doi.org/10.1007/978-3-319-42634-1_8">https://doi.org/10.1007/978-3-319-42634-1_8</a>
  bibtex: '@inproceedings{Abu-Khzam_Li_Markarian_Meyer auf der Heide_Podlipyan_2016,
    series={LNCS}, title={The Monotone Circuit Value Problem with Bounded Genus Is
    in NC}, DOI={<a href="https://doi.org/10.1007/978-3-319-42634-1_8">10.1007/978-3-319-42634-1_8</a>},
    booktitle={Proceedings of the 22nd International Conference on Computing and Combinatorics
    (COCOON)}, author={Abu-Khzam, Faisal N.  and Li, Shouwei and Markarian, Christine
    and Meyer auf der Heide, Friedhelm and Podlipyan, Pavel}, year={2016}, pages={92–102},
    collection={LNCS} }'
  chicago: Abu-Khzam, Faisal N. , Shouwei Li, Christine Markarian, Friedhelm Meyer
    auf der Heide, and Pavel Podlipyan. “The Monotone Circuit Value Problem with Bounded
    Genus Is in NC.” In <i>Proceedings of the 22nd International Conference on Computing
    and Combinatorics (COCOON)</i>, 92–102. LNCS, 2016. <a href="https://doi.org/10.1007/978-3-319-42634-1_8">https://doi.org/10.1007/978-3-319-42634-1_8</a>.
  ieee: F. N. Abu-Khzam, S. Li, C. Markarian, F. Meyer auf der Heide, and P. Podlipyan,
    “The Monotone Circuit Value Problem with Bounded Genus Is in NC,” in <i>Proceedings
    of the 22nd International Conference on Computing and Combinatorics (COCOON)</i>,
    2016, pp. 92–102.
  mla: Abu-Khzam, Faisal N., et al. “The Monotone Circuit Value Problem with Bounded
    Genus Is in NC.” <i>Proceedings of the 22nd International Conference on Computing
    and Combinatorics (COCOON)</i>, 2016, pp. 92–102, doi:<a href="https://doi.org/10.1007/978-3-319-42634-1_8">10.1007/978-3-319-42634-1_8</a>.
  short: 'F.N. Abu-Khzam, S. Li, C. Markarian, F. Meyer auf der Heide, P. Podlipyan,
    in: Proceedings of the 22nd International Conference on Computing and Combinatorics
    (COCOON), 2016, pp. 92–102.'
date_created: 2017-10-17T12:41:19Z
date_updated: 2022-01-06T06:51:57Z
ddc:
- '000'
department:
- _id: '63'
doi: 10.1007/978-3-319-42634-1_8
file:
- access_level: closed
  content_type: application/pdf
  creator: ups
  date_created: 2018-11-02T14:20:45Z
  date_updated: 2018-11-02T14:20:45Z
  file_id: '5269'
  file_name: TheMonotoneCircuitValueProblem.pdf
  file_size: 234587
  relation: main_file
  success: 1
file_date_updated: 2018-11-02T14:20:45Z
has_accepted_license: '1'
language:
- iso: eng
page: 92-102
project:
- _id: '1'
  name: SFB 901
- _id: '5'
  name: SFB 901 - Subprojekt A1
- _id: '2'
  name: SFB 901 - Project Area A
publication: Proceedings of the 22nd International Conference on Computing and Combinatorics
  (COCOON)
series_title: LNCS
status: public
title: The Monotone Circuit Value Problem with Bounded Genus Is in NC
type: conference
user_id: '477'
year: '2016'
...
---
_id: '144'
abstract:
- lang: eng
  text: 'Following the direction pioneered by Fiat and Papadimitriou in their 2010
    paper [12], we study the complexity of deciding the existence of mixed equilibria
    for minimization games where players use valuations other than expectation to
    evaluate their costs. We consider risk-averse players seeking to minimize the
    sum V=E+R of expectationE and a risk valuationR of their costs; R is non-negative
    and vanishes exactly when the cost incurred to a player is constant over all choices
    of strategies by the other players. In a V-equilibrium, no player could unilaterally
    reduce her cost.Say that V has the Weak-Equilibrium-for-Expectation property if
    all strategies supported in a player''s best-response mixed strategy incur the
    same conditional expectation of her cost. We introduce E-strict concavity and
    observe that every E-strictly concave valuation has the Weak-Equilibrium-for-Expectation
    property. We focus on a broad class of valuations shown to have the Weak-Equilibrium-for-Expectation
    property, which we exploit to prove two main complexity results, the first of
    their kind, for the two simplest cases of the problem:• Two strategies: Deciding
    the existence of a V-equilibrium is strongly NP-hard for the restricted class
    of player-specific scheduling games on two ordered links [22], when choosing R
    as (1)Var (variance), or (2)SD (standard deviation), or (3) a concave linear sum
    of even moments of small order.• Two players: Deciding the existence of a V-equilibrium
    is strongly NP-hard when choosing R as (1)γ⋅Var, or (2)γ⋅SD, where γ>0 is the
    risk-coefficient, or choosing V as (3) a convex combination of E+γ⋅Var and the
    concave ν-valuationν−1(E(ν(⋅))), where ν(x)=xr, with r≥2. This is a concrete consequence
    of a general strong NP-hardness result that only needs the Weak-Equilibrium-for-Expectation
    property and a few additional properties for V; its proof involves a reduction
    with a single parameter, which can be chosen efficiently so that each valuation
    satisfies the additional properties.'
author:
- first_name: Burkhard
  full_name: Monien, Burkhard
  last_name: Monien
- first_name: Marios
  full_name: Mavronicolas, Marios
  last_name: Mavronicolas
citation:
  ama: Monien B, Mavronicolas M. The complexity of equilibria for risk-modeling valuations.
    <i>Theoretical Computer Science</i>. 2016;634:67-96. doi:<a href="https://doi.org/10.1016/j.tcs.2016.04.013">10.1016/j.tcs.2016.04.013</a>
  apa: Monien, B., &#38; Mavronicolas, M. (2016). The complexity of equilibria for
    risk-modeling valuations. <i>Theoretical Computer Science</i>, <i>634</i>, 67–96.
    <a href="https://doi.org/10.1016/j.tcs.2016.04.013">https://doi.org/10.1016/j.tcs.2016.04.013</a>
  bibtex: '@article{Monien_Mavronicolas_2016, title={The complexity of equilibria
    for risk-modeling valuations}, volume={634}, DOI={<a href="https://doi.org/10.1016/j.tcs.2016.04.013">10.1016/j.tcs.2016.04.013</a>},
    journal={Theoretical Computer Science}, publisher={Elsevier}, author={Monien,
    Burkhard and Mavronicolas, Marios}, year={2016}, pages={67–96} }'
  chicago: 'Monien, Burkhard, and Marios Mavronicolas. “The Complexity of Equilibria
    for Risk-Modeling Valuations.” <i>Theoretical Computer Science</i> 634 (2016):
    67–96. <a href="https://doi.org/10.1016/j.tcs.2016.04.013">https://doi.org/10.1016/j.tcs.2016.04.013</a>.'
  ieee: B. Monien and M. Mavronicolas, “The complexity of equilibria for risk-modeling
    valuations,” <i>Theoretical Computer Science</i>, vol. 634, pp. 67–96, 2016.
  mla: Monien, Burkhard, and Marios Mavronicolas. “The Complexity of Equilibria for
    Risk-Modeling Valuations.” <i>Theoretical Computer Science</i>, vol. 634, Elsevier,
    2016, pp. 67–96, doi:<a href="https://doi.org/10.1016/j.tcs.2016.04.013">10.1016/j.tcs.2016.04.013</a>.
  short: B. Monien, M. Mavronicolas, Theoretical Computer Science 634 (2016) 67–96.
date_created: 2017-10-17T12:41:20Z
date_updated: 2022-01-06T06:51:59Z
ddc:
- '040'
doi: 10.1016/j.tcs.2016.04.013
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T12:58:42Z
  date_updated: 2018-03-21T12:58:42Z
  file_id: '1557'
  file_name: 144-Monien_Mavronicolas-TCS2016_01.pdf
  file_size: 633599
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T12:58:42Z
has_accepted_license: '1'
intvolume: '       634'
language:
- iso: eng
page: 67-96
project:
- _id: '1'
  name: SFB 901
- _id: '7'
  name: SFB 901 - Subprojekt A3
- _id: '2'
  name: SFB 901 - Project Area A
publication: Theoretical Computer Science
publisher: Elsevier
status: public
title: The complexity of equilibria for risk-modeling valuations
type: journal_article
user_id: '42447'
volume: 634
year: '2016'
...
---
_id: '145'
abstract:
- lang: eng
  text: 'Comparative evaluations of peer-to-peer protocols through simulations are
    a viable approach to judge the performance and costs of the individual protocols
    in large-scale networks. In order to support this work, we present the peer-to-peer
    system simulator PeerfactSim.KOM, which we extended over the last years. PeerfactSim.KOM
    comes with an extensive layer model to support various facets and protocols of
    peer-to-peer networking. In this article, we describe PeerfactSim.KOM and show
    how it can be used for detailed measurements of large-scale peer-to-peer networks.
    We enhanced PeerfactSim.KOM with a fine-grained analyzer concept, with exhaustive
    automated measurements and gnuplot generators as well as a coordination control
    to evaluate sets of experiment setups in parallel. Thus, by configuring all experiments
    and protocols only once and starting the simulator, all desired measurements are
    performed, analyzed, evaluated, and combined, resulting in a holistic environment
    for the comparative evaluation of peer-to-peer systems. An immediate comparison
    of different configurations and overlays under different aspects is possible directly
    after the execution without any manual post-processing. '
author:
- first_name: Matthias
  full_name: Feldotto, Matthias
  id: '14052'
  last_name: Feldotto
  orcid: 0000-0003-1348-6516
- first_name: Kalman
  full_name: Graffi, Kalman
  last_name: Graffi
citation:
  ama: 'Feldotto M, Graffi K. Systematic evaluation of peer-to-peer systems using
    PeerfactSim.KOM. <i>Concurrency and Computation: Practice and Experience</i>.
    2016;28(5):1655-1677. doi:<a href="https://doi.org/10.1002/cpe.3716">10.1002/cpe.3716</a>'
  apa: 'Feldotto, M., &#38; Graffi, K. (2016). Systematic evaluation of peer-to-peer
    systems using PeerfactSim.KOM. <i>Concurrency and Computation: Practice and Experience</i>,
    <i>28</i>(5), 1655–1677. <a href="https://doi.org/10.1002/cpe.3716">https://doi.org/10.1002/cpe.3716</a>'
  bibtex: '@article{Feldotto_Graffi_2016, title={Systematic evaluation of peer-to-peer
    systems using PeerfactSim.KOM}, volume={28}, DOI={<a href="https://doi.org/10.1002/cpe.3716">10.1002/cpe.3716</a>},
    number={5}, journal={Concurrency and Computation: Practice and Experience}, publisher={Wiley
    Online Library}, author={Feldotto, Matthias and Graffi, Kalman}, year={2016},
    pages={1655–1677} }'
  chicago: 'Feldotto, Matthias, and Kalman Graffi. “Systematic Evaluation of Peer-to-Peer
    Systems Using PeerfactSim.KOM.” <i>Concurrency and Computation: Practice and Experience</i>
    28, no. 5 (2016): 1655–77. <a href="https://doi.org/10.1002/cpe.3716">https://doi.org/10.1002/cpe.3716</a>.'
  ieee: 'M. Feldotto and K. Graffi, “Systematic evaluation of peer-to-peer systems
    using PeerfactSim.KOM,” <i>Concurrency and Computation: Practice and Experience</i>,
    vol. 28, no. 5, pp. 1655–1677, 2016.'
  mla: 'Feldotto, Matthias, and Kalman Graffi. “Systematic Evaluation of Peer-to-Peer
    Systems Using PeerfactSim.KOM.” <i>Concurrency and Computation: Practice and Experience</i>,
    vol. 28, no. 5, Wiley Online Library, 2016, pp. 1655–77, doi:<a href="https://doi.org/10.1002/cpe.3716">10.1002/cpe.3716</a>.'
  short: 'M. Feldotto, K. Graffi, Concurrency and Computation: Practice and Experience
    28 (2016) 1655–1677.'
date_created: 2017-10-17T12:41:20Z
date_updated: 2022-01-06T06:52:00Z
ddc:
- '040'
department:
- _id: '79'
- _id: '63'
- _id: '541'
doi: 10.1002/cpe.3716
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T12:57:57Z
  date_updated: 2018-03-21T12:57:57Z
  file_id: '1556'
  file_name: 145-Feldotto_et_al-2016-Concurrency_and_Computation-_Practice_and_Experience.pdf
  file_size: 3121363
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T12:57:57Z
has_accepted_license: '1'
intvolume: '        28'
issue: '5'
page: 1655-1677
project:
- _id: '1'
  name: SFB 901
- _id: '5'
  name: SFB 901 - Subprojekt A1
- _id: '2'
  name: SFB 901 - Project Area A
publication: 'Concurrency and Computation: Practice and Experience'
publication_status: published
publisher: Wiley Online Library
status: public
title: Systematic evaluation of peer-to-peer systems using PeerfactSim.KOM
type: journal_article
user_id: '14052'
volume: 28
year: '2016'
...
---
_id: '131'
author:
- first_name: Annabel
  full_name: Holzmann, Annabel
  last_name: Holzmann
citation:
  ama: Holzmann A. <i>Wenn 1+1 nicht 2 ergibt – Gestaltungsmöglichkeiten Einzelbewertungen
    in Reputationssystemen zu Gesamtbewertungen zu aggregieren</i>. Universität Paderborn;
    2016.
  apa: Holzmann, A. (2016). <i>Wenn 1+1 nicht 2 ergibt – Gestaltungsmöglichkeiten
    Einzelbewertungen in Reputationssystemen zu Gesamtbewertungen zu aggregieren</i>.
    Universität Paderborn.
  bibtex: '@book{Holzmann_2016, title={Wenn 1+1 nicht 2 ergibt – Gestaltungsmöglichkeiten
    Einzelbewertungen in Reputationssystemen zu Gesamtbewertungen zu aggregieren},
    publisher={Universität Paderborn}, author={Holzmann, Annabel}, year={2016} }'
  chicago: Holzmann, Annabel. <i>Wenn 1+1 nicht 2 ergibt – Gestaltungsmöglichkeiten
    Einzelbewertungen in Reputationssystemen zu Gesamtbewertungen zu aggregieren</i>.
    Universität Paderborn, 2016.
  ieee: A. Holzmann, <i>Wenn 1+1 nicht 2 ergibt – Gestaltungsmöglichkeiten Einzelbewertungen
    in Reputationssystemen zu Gesamtbewertungen zu aggregieren</i>. Universität Paderborn,
    2016.
  mla: Holzmann, Annabel. <i>Wenn 1+1 nicht 2 ergibt – Gestaltungsmöglichkeiten Einzelbewertungen
    in Reputationssystemen zu Gesamtbewertungen zu aggregieren</i>. Universität Paderborn,
    2016.
  short: A. Holzmann, Wenn 1+1 nicht 2 ergibt – Gestaltungsmöglichkeiten Einzelbewertungen
    in Reputationssystemen zu Gesamtbewertungen zu aggregieren, Universität Paderborn,
    2016.
date_created: 2017-10-17T12:41:17Z
date_updated: 2022-01-06T06:51:28Z
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '8'
  name: SFB 901 - Subprojekt A4
- _id: '2'
  name: SFB 901 - Project Area A
publisher: Universität Paderborn
status: public
title: Wenn 1+1 nicht 2 ergibt – Gestaltungsmöglichkeiten Einzelbewertungen in Reputationssystemen
  zu Gesamtbewertungen zu aggregieren
type: bachelorsthesis
user_id: '477'
year: '2016'
...
