... are unbalanced; Then the generalized grey number is adopted to describe the value of performance evaluation index; and the information entropy weight is used to obtain the index weight to reduce the artificial judgment error; Finally, the generalized grey information entropy weight TOPSIS evaluation model...

... of the paper is organized as follows. Section 2 reviews literature on supplier selection criteria, criteria weight determination methods and supplier evaluation methods. Section 3 introduces some preliminaries for fuzzy set theory, entropy weight, TOPSIS and improved ELECTRE methods, and the proposed...