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The complexity of bribery in network-based rating systems

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Grandi, Umberto, Stewart, James and Turrini, Paolo (2018) The complexity of bribery in network-based rating systems. In: The Thirty-Second AAAI Conference on Artificial Intelligence (AAAI-18), New Orleans, 02-07 Feb 2018. Published in: Proceedings The Thirty-Second AAAI Conference on Artificial Intelligence (AAAI-18), 2018 pp. 1047-1054.

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Abstract

We study the complexity of bribery in a network-based rating system, where individuals are connected in a social network and an attacker, typically a service provider, can influence their rating and increase the overall profit. We derive a number of algorithmic properties of this framework, in particular we show that establishing the existence of an optimal manipulation strategy for the attacker is NP-complete, even with full knowledge of the underlying network structure.

Item Type: Conference Item (Paper)
Subjects: Q Science > QA Mathematics
Z Bibliography. Library Science. Information Resources > Z665 Library Science. Information Science
Divisions: Faculty of Science, Engineering and Medicine > Science > Computer Science
Library of Congress Subject Headings (LCSH): Recommender systems (Information filtering), Game theory, Bribery, Decision making
Journal or Publication Title: Proceedings The Thirty-Second AAAI Conference on Artificial Intelligence (AAAI-18)
Publisher: Association for the Advancement of Artificial Intelligence (AAAI)
Official Date: 25 April 2018
Dates:
DateEvent
25 April 2018Published
8 November 2017Accepted
Volume: 2018
Page Range: pp. 1047-1054
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 21 November 2017
Date of first compliant Open Access: 7 February 2019
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
ANR-11-LABX-0040-CIMI [ANR] Agence Nationale de la Recherchehttp://dx.doi.org/10.13039/501100001665
Conference Paper Type: Paper
Title of Event: The Thirty-Second AAAI Conference on Artificial Intelligence (AAAI-18)
Type of Event: Conference
Location of Event: New Orleans
Date(s) of Event: 02-07 Feb 2018
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