Compatibility measures and consensus models for group decision making with intuitionistic multiplicative preference relations

Authors:
Yuan Jiang;Zeshui Xu;Xiaohan Yu
Affiliations:
College of Communications Engineering, PLA University of Science and Technology, Nanjing, Jiangsu 210007, China;College of Sciences, PLA University of Science and Technology, Nanjing, Jiangsu 210007, China;College of Communications Engineering, PLA University of Science and Technology, Nanjing, Jiangsu 210007, China
Venue:
Applied Soft Computing
Year:
2013

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Abstract

Compatibility is a very efficient tool for measuring the consensus level in group decision making (GDM) problems. The lack of acceptable compatibility can lead to unsatisfied or even incorrect results in GDM problems. Preference relations can be given in various forms, one of which called intuitionistic multiplicative preference relation is a new developed preference structure that uses an unsymmetrical scale (Saaty's 1-9 scale) to express the decision maker's preferences instead of the symmetrical scale in an intuitionistic fuzzy preference relation. This new preference relation can reflect our intuition more objectively. In this paper, we first develop some compatibility measures for intuitionistic multiplicative values and intuitionistic multiplicative preference relations in GDM. Their desirable properties are also studied in detail. Furthermore, based on compatibility measures, we further develop two different consensus models with respect to intuitionistic multiplicative preference relations for checking, reaching and improving the group consensus level. Finally, a numerical example is given to illustrate the effectiveness of our measures and models.