超效率DEA模型的模糊扩展

Chinese Journal of Management Science ›› 2009, Vol. 17 ›› Issue (2): 117-124.

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Fuzzy Super-Efficiency DEA Model

WANG Mei-qiang^1,2, LIANG Liang¹, LI Yong-jun¹

1. School of Management, University of Science and Technology of China, Hefei 230026 China;
2. School of Management, Guizhou University, Guiyang 550025, China

Received:2008-07-14 Revised:2009-03-15 Online:2009-04-30 Published:2009-04-30

Abstract

Abstract: In the fuzzy DEA model whose inputs and outputs are fuzzy and efficiency score is precise,all DMUs could not be ranked when the number of efficient units is no less than two.To that end,we devel op a fuzzy super-efficiency DEA model by using a ranking method based on the comparison of α-cuts,our approach can be seen as an extension of the super-efficiency DEA model that can fully rank fuzzy DMUs.In the end,an empirical example is illustrated.

Key words: fuzzy D EA, super-efficiency, ranking

CLC Number:

C934

WANG Mei-qiang, LIANG Liang, LI Yong-jun. Fuzzy Super-Efficiency DEA Model[J]. Chinese Journal of Management Science, 2009, 17(2): 117-124.

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Fuzzy Super-Efficiency DEA Model

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