An extended TODIM multi-criteria group decision making method for green supplier selection in interval type-2 fuzzy environment

2017 ◽  
Vol 258 (2) ◽  
pp. 626-638 ◽  
Author(s):  
Jindong Qin ◽  
Xinwang Liu ◽  
Witold Pedrycz
Keyword(s):  
Decision Making ◽  
Group Decision Making ◽  
Supplier Selection ◽  
Group Decision ◽  
Green Supplier Selection ◽  
Fuzzy Environment ◽  
Interval Type

A new multi-criteria group decision-making method based on consensus mechanism in an interval type-2 fuzzy environment

2021 ◽  
pp. 1-19
Author(s):  
Hongyan Li ◽  
Peng Wu ◽  
Ligang Zhou ◽  
Huayou Chen
Keyword(s):  
Decision Making ◽  
Similarity Measure ◽  
Group Decision Making ◽  
Group Decision ◽  
Consensus Problem ◽  
Entropy Weight ◽  
Fuzzy Environment ◽  
Consensus Measure ◽  
Interval Type

The consensus problem is a very important aspect of group decision making (GDM). In order to deal with the multiple criteria group decision consensus problem in the interval type-2 fuzzy environment, a consensus measure based on similarity measurement is proposed in this paper. In this paper, first, a new similarity measure of two interval type-2 fuzzy sets (IT2FSs) is defined and the consensus measure is defined by the similarity measure between two IT2FSs. Then, a new consensus feedback mechanism is proposed. In the stage of alternatives selection, the entropy of IT2FSs is defined, and the entropy weight method is used to determine the weights of the criteria. Finally, the feasibility of the method proposed in this paper is illustrated by a comprehensive evaluation of old-age institutions.

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