THE IDENTIFICATION OF EFFICIENCY BY USING FUZZY NUMBERS

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  • M. Sanei1,
  • R. Dehghan2,
  • A. Mahmoodi Rad2,
  1. Islamic Azad University, Central Tehran Branch, Iran. Iran, Islamic Republic of Department of Mathematics
  2. Islamic Azad University, Masjed-Solyman Branch,Iran Iran, Islamic Republic of Department of Mathematics

Revised: 14-04-2016

Accepted: 14-04-2016

Published in Issue 21-12-2012

How to Cite

Sanei, M., Dehghan, R., & Mahmoodi Rad, A. (2012). THE IDENTIFICATION OF EFFICIENCY BY USING FUZZY NUMBERS. International Journal of Mathematical Modelling & Computations, 2(1), 53-59. http://oiccpress.com/ijm2c/article/view/11143

Abstract

In original Data Envelopment Analysis (DEA) models for measuring the relative efficiencies of a set of Decision Making Units (DMUs) using various inputs to produce various outputs are limited to crisp data. To deal with imprecise data, the notion of fuzziness has been introduced. this paper develops a procedure to measure the efficiencies of DMUs with fuzzy observations. The basic idea is to transform a fuzzy DEA model to family of conventional crisp DEA models by applying optimistic, intermediate and pessimistic concepts. A numerical example is given to show the efficiency.
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