Reference : Bridging Social Network Analysis and Judgment Aggregation
Scientific journals : Article
Engineering, computing & technology : Computer science
http://hdl.handle.net/10993/19554
Bridging Social Network Analysis and Judgment Aggregation
English
Colombo Tosatto, Silvano mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Van Zee, Marc mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Nov-2014
Social Informatics - 6th International Conference, SocInfo 2014, Barcelona, Spain, November 11-13, 2014. Proceedings
Yes
International
[en] Judgment Aggregation ; Social Network Analysis ; Voting Rules
[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.
http://hdl.handle.net/10993/19554

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