THE IDENTIFICATION OF EFFICIENCY BY USING FUZZY NUMBERS
محورهای موضوعی : فصلنامه ریاضی
M. Sanei
1
(Islamic Azad University, Central Tehran Branch, Iran.
Iran, Islamic Republic of
Department of Mathematics)
R. Dehghan
2
(Islamic Azad University, Masjed-Solyman Branch,Iran
Iran, Islamic Republic of
Department of Mathematics)
A. Mahmoodi Rad
3
(Islamic Azad University, Masjed-Solyman Branch,Iran
Iran, Islamic Republic of
Department of Mathematics)
کلید واژه: Data envelopment analysis,
چکیده مقاله :
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.
