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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/52586

Title: Fuzzy rankings for preferences modeling in group decision making
Authors: Nicola Capuano
Francisco Chiclana
Enrique Herrera‐Viedma
Hamido Fujita
Vincenzo Loia
Contributors: 國立臺灣海洋大學:資訊工程學系
Keywords: fuzzy preference relations
fuzzy rankings
group decision making
Date: 2018
Issue Date: 2019-11-22T01:32:10Z
Publisher: International Journal of Intelligent Systems
Abstract: Abstract: Although fuzzy preference relations (FPRs) are among the most commonly used preference models in group decision making (GDM), they are not free from drawbacks. First of all, especially when dealing with many alternatives, the definition of FPRs becomes complex and time consuming. Moreover, they allow to focus on only two options at a time. This facilitates the expression of preferences but let experts lose the global perception of the problem with the risk of introducing inconsistencies that impact negatively on the whole decision process. For these reasons, different preference models are often adopted in real GDM settings and, if necessary, transformation functions are applied to obtain equivalent FPRs. In this paper, we propose fuzzy rankings, a new approximate preference model that offers a higher level of user‐friendliness with respect to FPRs while trying to maintain an adequate level of expressiveness. Fuzzy rankings allow experts to focus on two alternatives at a time without losing the global picture so reducing inconsistencies. Conversion algorithms from fuzzy rankings to FPRs and backward are defined as well as similarity measures, useful when evaluating the concordance between experts’ opinion. A comparison of the proposed model with related works is reported as well as several explicative examples.
Relation: 33(7) pp.1555-1570
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/52586
Appears in Collections:[資訊工程學系] 期刊論文

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