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Judgment aggregation and the problem of truth-tracking

Published: 25 June 2007 Publication History

Abstract

The problem of the aggregation of consistent individual judgments on logically interconnected propositions into a collective judgment on the same propositions has recently drawn much attention. The difficulty lies in the fact that a seemingly reasonable aggregation procedure, such as propositionwise majority voting, cannot ensure an equally consistent collective outcome. The literature on judgment aggregation refers to such dilemmas as the doctrinal paradox. Three procedures have been proposed in order to overcome the paradox: the premise-based and conclusion-based procedures on the one hand, and the fusion approach on the other hand. In this paper we assume that the decision which the group is trying to reach is factually right or wrong. Hence, the question is how good the fusion approach is in tracking the truth, and how it compares with the premise-based and conclusion-based procedures. We address these questions in a probabilistic framework and show that belief fusion does especially well for individuals with a middling competence of hitting the truth of a proposition.

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cover image ACM Other conferences
TARK '07: Proceedings of the 11th conference on Theoretical aspects of rationality and knowledge
June 2007
296 pages
ISBN:9781450378413
DOI:10.1145/1324249
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 25 June 2007

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TARK '07 Paper Acceptance Rate 32 of 100 submissions, 32%;
Overall Acceptance Rate 61 of 177 submissions, 34%

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  • (2015)Belief merging with the aim of truthlikenessSynthese10.1007/s11229-015-0825-y193:7(2013-2034)Online publication date: 15-Jul-2015
  • (2012)The doctrinal paradox, the discursive dilemma, and logical aggregation theoryTheory and Decision10.1007/s11238-012-9310-y73:3(315-355)Online publication date: 26-May-2012
  • (2011)Logic Based MergingJournal of Philosophical Logic10.1007/s10992-011-9175-540:2(239-270)Online publication date: 2-Mar-2011
  • (2010)The Epistemic View of Belief MergingProceedings of the 2010 conference on ECAI 2010: 19th European Conference on Artificial Intelligence10.5555/1860967.1861089(621-626)Online publication date: 4-Aug-2010
  • (2008)An Approach to Description Logic with Support for Propositional Attitudes and Belief FusionUncertainty Reasoning for the Semantic Web I10.1007/978-3-540-89765-1_8(124-142)Online publication date: 30-Nov-2008

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