Aggregation of opinions in Multi Person Multi Attribute decision problems with judgments inconsistency

Authors:
Silvio Giove;Marco Corazza
Affiliations:
Dept. of Applied Mathematics, Ca' Foscari University Venice --Sestiere Dorsoduro 3825/E, 30123 Venice, Italy;Dept. of Applied Mathematics, Ca' Foscari University Venice --Sestiere Dorsoduro 3825/E, 30123 Venice, Italy and Advanced School of Economics of Venice, Faculty of Economics, Ca' Foscari Universit ...
Venue:
Proceedings of the 2009 conference on Neural Nets WIRN09: Proceedings of the 19th Italian Workshop on Neural Nets, Vietri sul Mare, Salerno, Italy, May 28--30 2009
Year:
2009

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Abstract

In this paper we consider a Multi Person Multi Attribute decision problem in which a finite number of alternatives has to be scored on the basis of a finite number of criteria, using different Stakeholders' judgments. In particular, first we propose a new individual preferences aggregation method which takes possible Stakeholder's inconsistencies into account, measured by a new consistency measure we call μ-consistency, then we focus the attention on the aggregation process of the Stakeholders' preference structure about the criteria, preference structure which is represented by non additive measures defined over the space of the criteria.