A CONSENSUS MODEL FOR GROUP DECISION-MAKING PROBLEMS WITH INTERVAL FUZZY PREFERENCE RELATIONS

J. M. Tapia García, M. J. Del Moral, M. A. Martínez and E. Herrera-Viedma ()
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J. M. Tapia García: Dept. of Cuantitative Methods in Economy and Enterprise, University of Granada, 18071 Granada, Spain
M. J. Del Moral: Dept. of Statistics and Operational Research, University of Granada, 18071 Granada, Spain
M. A. Martínez: Dept. of Computer Science and A.I, University of Granada, 18071 Granada, Spain
E. Herrera-Viedma: Dept. of Computer Science and A.I, University of Granada, 18071 Granada, Spain

International Journal of Information Technology & Decision Making (IJITDM), 2012, vol. 11, issue 04, 709-725

Abstract: Interval fuzzy preference relations can be useful to express decision makers' preferences in group decision-making problems. Usually, we apply a selection process and a consensus process to solve a group decision situation. In this paper, we present a consensus model for group decision-making problems with interval fuzzy preference relations. This model is based on two consensus criteria, a consensus measure and a proximity measure, and also on the concept of coincidence among preferences. We compute both consensus criteria in the three representation levels of a preference relation and design an automatic feedback mechanism to guide experts in the consensus reaching process. We show an application example in social work.

Keywords: Group decision-making; consensus; interval fuzzy preference relations (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (7)

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DOI: 10.1142/S0219622012500174

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