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Fuzzy data envelopment analysis (DEA): Model and ranking method

✍ Scribed by Meilin Wen; Huaishu Li

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
445 KB
Volume
223
Category
Article
ISSN
0377-0427

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✦ Synopsis

Data Envelopment Analysis (DEA) is a very effective method to evaluate the relative efficiency of decision-making units (DMUs). Since the data of production processes cannot be precisely measured in some cases, the uncertain theory has played an important role in DEA. This paper attempts to extend the traditional DEA models to a fuzzy framework, thus producing a fuzzy DEA model based on credibility measure. Following is a method of ranking all the DMUs. In order to solve the fuzzy model, we have designed the hybrid algorithm combined with fuzzy simulation and genetic algorithm. When the inputs and outputs are all trapezoidal or triangular fuzzy variables, the model can be transformed to linear programming. Finally, a numerical example is presented to illustrate the fuzzy DEA model and the method of ranking all the DMUs.

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