Distribution Linguistic Fuzzy Group Decision Making Based on Consistency and Consensus Analysis

Feifei Jin, Chang Li, Jinpei Liu and Ligang Zhou
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Feifei Jin: School of Business, Anhui University, Hefei 230601, China
Chang Li: School of Business, Anhui University, Hefei 230601, China
Jinpei Liu: School of Business, Anhui University, Hefei 230601, China
Ligang Zhou: Anhui University Center for Applied Mathematics, Anhui University, Hefei 230601, China

Mathematics, 2021, vol. 9, issue 19, 1-19

Abstract: The development of distribution linguistic provides a new research idea for linguistic information group decision-making (GDM) problems, which is more flexible and convenient for experts to express their opinions. However, in the process of using distribution linguistic fuzzy preference relations (DLFPRs) to solve linguistic information GDM problems, there are few studies that pay attention to both internal consistency adjustment and external consensus of experts. Therefore, this study proposes a fresh decision support model based on consistency adjustment algorithm and consensus adjustment algorithm to solve GDM problems with distribution linguistic data. Firstly, we review the concept of DLFPRs to describe the fuzzy linguistic evaluation information, and then we present the multiplicative consistency of DLFPRs and a new consistency measurement method based on the distance, and investigate the consistency adjustment algorithm to ameliorate the consistency level of DLFPRs. Subsequently, the consensus degree measurement is carried out, and a new consensus degree calculation method is put forward. At the same time, the consensus degree adjustment is taken the expert cost into account to make it reach the predetermined level. Finally, a distribution linguistic fuzzy group decision making (DLFGDM) method is designed to integrate the evaluation linguistic elements and obtain the final evaluation information. A case of the evaluation of China’s state-owned enterprise equity incentive model is provided, and the validity and superiority of the proposed method are performed by comparative analysis.

Keywords: distribution linguistic fuzzy preference relations; consistency adjustment algorithm; consensus adjustment algorithm; group decision making (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
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