A Framework of Group Decision Making with Hesitant Fuzzy Preference Relations Based on Multiplicative Consistency

作者：Zhang, Zhiming^*

来源：International Journal of Fuzzy Systems, 2017, 19(4): 982-996.

DOI：10.1007/s40815-016-0219-4

• Hesitant fuzzy set
• Hesitant fuzzy preference relation
• Group decision making
• Multiplicative consistency
• Consensus

The purpose of this paper is to develop a general framework of group decision making with hesitant fuzzy preference relations based on the multiplicative consistency. First, we define a consistency index to measure whether or not a hesitant fuzzy preference relation is of acceptably multiplicative consistency. A consistency improving process is developed to improve the consistency level of a hesitant fuzzy preference relation with unacceptably multiplicative consistency until it is acceptably multiplicative. Then, we present a group consensus index to measure the deviation measure between the individual hesitant fuzzy preference relations and their collective hesitant fuzzy preference relation. A consensus reaching process is developed to help the decision makers improve the consensus level among hesitant fuzzy preference relations until they meet a predefined consensus level. Subsequently, we establish a complete framework of group decision making with hesitant fuzzy preference relations. In this framework, individual multiplicative consistency and group consensus are simultaneously highlighted and the acceptably multiplicative consistency of each hesitant fuzzy preference relation is still maintained in the achievement of the predefined consensus level. Finally, an illustrative numerical example is given to verify the effectiveness and practicality of the developed method.

• 出版日期2017-8
• 单位河北大学