Dynamic DEMATEL Group Decision Approach Based on Intuitionistic Fuzzy Number
Abstract: With respect to the
problems of aggregation about group experts’ information and dynamic decision
in DEMATEL (decision making trial and evaluation laboratory), a dynamic DEMATEL
group expert decision-making method on intuitionistic fuzzy number (IFN) is
presented. Firstly using IFN instead of original point estimates to reflect the
experts’ preference, the group experts’ information are integrated horizontally
at each period. Then the aggregation information at different periods are
aggregated vertically again by dynamic intuitionistic fuzzy weighted averaging
(DIFWA) operator so as to obtain the dynamic intuitionistic fuzzy DEMATEL total
relation matrix. Thirdly, through the analysis of center and reason degree, the
positions of the various factors in the system are clear and definite, and the
inner structure of system has been revealed. Finally, the feasibility and
practicability of the proposed method is shown through an illustrative example
of a process of course selection in a school.
Keywords: DEMATEL,
intuitionistic fuzzy numbers, dynamic intuitionistic fuzzy weighted averaging operator
Author: Hui Xie, Wanchun Duan,
Yonghe Sun, Yuanwei Du
Journal Code: jptkomputergg140130
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