A New Method for Solving Fuzzy DEA Models by Trapeziodal Approximation

Mohsen Rostamy-Malkhalifeh, Masoud Sanei, Hilda Saleh

Abstract


Data envelopment analysis is a technique for measuring the relative e±ciency of a set of decision making units with
crisp data, but in this paper we explain a new method for evaluating of decision making units with fuzzy data.
At ¯rst, we introduce fuzzy data envelopment analysis models with
parameters as trapezoidal membership function. Then we extend
this method for solving models with general parameters.

Keywords


Data envelopment analysis, fuzzy DEA, CCR, BCC, trapezoidal aproximation, ranking.

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