Indian Journal of Science and Technology

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In this current literature, there are several models of Fully Fuzzy Data Envelopment Analysis (FFDEA) where inputs-outputs data and weights were fuzzy numbers. The main purpose of this study is to evaluate the performance of a set of Decision Making Units (DMUs) and fully ranking DMUs in fully fuzzified environment. In this paper, an FFDEA problem is discussed, and a method for solving this FFDEA problem is also proposed. This method based on the multi-objective linear programming and the simplex method is proposed for computing an optimal fuzzy solution to a FFDEA problem in which fuzzy ranking functions are not used. We acquire fuzzy efficiency scores with solving FFDEA. Afterwards, we have used a ranking function to rank these fuzzy scores. A numerical example is used to demonstrate and compare the results with those obtained using alternative approaches.

Keywords

Data Envelopment Analysis, Efficiency, Fuzzy Numbers, Multi-Objective
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