The multi-criteria hesitant fuzzy group decision making with multimoora method

Abstract

As a generalization of fuzzy set, hesitant fuzzy set permits the membership degree of an element to a set being represented by several possible values and thus can be considered as a powerful tool to express uncertain information in the process of group decision making. The aim of this study is to present a multi-criteria decision making method, namely MULTIMOORA-HF, to tackle hesitant fuzzy information. Being an extension of the crisp MULTIMOORA method, the MULTIMOORA-HF is designed to facilitate group decision making with uncertain information. The proposed methods consists of the three parts—the Ratio System, the Reference Point, and the Full Multiplicative Form. The proposed method thus provides the means for multi-criteria decision making related to uncertain and complex assessments. Utilization of aggregation operators also enables to reduce subjectivity and bias in the group multi-criteria decision making. The numerical simulation exhibits the possibilities for application of the proposed method.