Article (Scientific journals)
Bridging Social Network Analysis and Judgment Aggregation
Colombo Tosatto, Silvano; Van Zee, Marc
2014In Proceedings of Social Informatics - 6th International Conference, SocInfo 2014, Barcelona, Spain, November 11-13, 2014
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Keywords :
Judgment Aggregation; Social Network Analysis; Voting Rules
Abstract :
[en] Judgment aggregation investigates the problem of how to aggregate several individuals’ judgments on some logically connected propositions into a consistent collective judgment. The majority of work in judgment aggregation is devoted to studying impossibility results, but the relationship between the (social) dependencies that may exist be- tween voters and the outcome of the voting process is traditionally not studied. In this paper, we use techniques from social network analysis to characterize the relations between the individuals participating in a judgment aggregation problem by analysing the similarity between their judgments in terms of social networks. We obtain a correspondence between a voting rule in judgment aggregation and a centrality measure from social network analysis and we motivate our claims by an empirical analysis. We also show how large social networks can be simplified by grouping individuals with the same voting behavior.
Disciplines :
Computer science
Author, co-author :
Colombo Tosatto, Silvano ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Van Zee, Marc ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Language :
English
Title :
Bridging Social Network Analysis and Judgment Aggregation
Publication date :
November 2014
Journal title :
Proceedings of Social Informatics - 6th International Conference, SocInfo 2014, Barcelona, Spain, November 11-13, 2014
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 19 January 2015

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