Fine-grained view on bribery for group identification

Given a set of agents qualifying or disqualifying each other, group identification is the task of identifying a socially qualified subgroup of agents. Social qualification depends on the specific rule used to aggregate individual qualifications . The classical bribery problem in this context asks ho...

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Bibliographic Details
Published in:Autonomous agents and multi-agent systems Vol. 37; no. 1; p. 21
Main Authors: Boehmer, Niclas, Bredereck, Robert, Knop, Dušan, Luo, Junjie
Format: Journal Article
Language:English
Published: New York Springer US 01.06.2023
Springer Nature B.V
Subjects:
Artificial Intelligence
Bribery
Computer Science
Computer Systems Organization and Communication Networks
Consent
Costs
Elections
Identification
Polynomials
Qualifications
Software Engineering/Programming and Operating Systems
Subgroups
User Interfaces and Human Computer Interaction
ISSN:1387-2532, 1573-7454
Online Access:Get full text
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Summary:Given a set of agents qualifying or disqualifying each other, group identification is the task of identifying a socially qualified subgroup of agents. Social qualification depends on the specific rule used to aggregate individual qualifications . The classical bribery problem in this context asks how many agents need to change their qualifications in order to change the outcome in a certain way. Complementing previous results showing polynomial-time solvability or NP-hardness of bribery for various social rules in the constructive (aiming at making specific agents socially qualified) or destructive (aiming at making specific agents socially disqualified) setting, we provide a comprehensive picture of the parameterized computational complexity landscape. Conceptually, we also consider a more fine-grained concept of bribery cost, where we ask how many single qualifications need to be changed, nonunit prices for different bribery actions, and a more general bribery goal that combines the constructive and destructive setting.
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ISSN:1387-2532
1573-7454
DOI:10.1007/s10458-023-09597-7