Fuzzy data envelopment analysis:a discrete approach


Data envelopment analysis (DEA) as introduced by Charnes, Cooper, and Rhodes (1978) is a linear programming technique that has widely been used to evaluate the relative efficiency of a set of homogenous decision making units (DMUs). In many real applications, the input-output variables cannot be precisely measured. This is particularly important in assessing efficiency of DMUs using DEA, since the efficiency score of inefficient DMUs are very sensitive to possible data errors. Hence, several approaches have been proposed to deal with imprecise data. Perhaps the most popular fuzzy DEA model is based on a-cut. One drawback of the a-cut approach is that it cannot include all information about uncertainty. This paper aims to introduce an alternative linear programming model that can include some uncertainty information from the intervals within the a-cut approach. We introduce the concept of "local a-level" to develop a multi-objective linear programming to measure the efficiency of DMUs under uncertainty. An example is given to illustrate the use of this method.

Publication DOI: https://doi.org/10.1016/j.eswa.2011.07.118
Divisions: College of Business and Social Sciences > Aston Business School > Operations & Information Management
Additional Information: NOTICE: this is the author’s version of a work that was accepted for publication in Expert systems with applications. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Zerafat Angiz, ML, Emrouznejad, A & Mustafa, A, 'Fuzzy data envelopment analysis: a discrete approach' Expert systems with applications, vol. 39, no. 3 (2012) DOI http://dx.doi.org/10.1016/j.eswa.2011.07.118
Uncontrolled Keywords: fuzzy data envelopment analysis,interval data,local a-level,multi objective programming,decision making unit,Artificial Intelligence,Computer Science Applications,Engineering(all)
Publication ISSN: 1873-6793
Last Modified: 20 May 2024 07:10
Date Deposited: 17 Sep 2013 10:21
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2012-02-15
Authors: Zerafat Angiz L., Majid
Emrouznejad, Ali (ORCID Profile 0000-0001-8094-4244)
Mustafa, Adli



Version: Accepted Version

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