Restricted Variation in Fuzzy Data Envelopment Analysis

سال انتشار: 1394
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 625

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شناسه ملی سند علمی:

ICFUZZYS14_054

تاریخ نمایه سازی: 21 اردیبهشت 1397

چکیده مقاله:

Input and output measures are usually precise in traditional data envelopment analysis (DEA) models. Moreover, inefficient decision making units (DMUs) can change input and output values arbitrarily so as to meet the efficient frontier. Nevertheless, occasions arise in the real world that data is not precise and data values cannot change arbitrarily. In fact, inputs and outputs variations are restricted by regarding limitations in resources and DMU‘s ability. For this purpose, in the current paper a model is proposed to evaluate the efficiency of DMUs where imprecise data and restrictions in variations exist. That is, variation levels of measures are predefined and imposed in a fuzzy DEA model. A numerical example illustrates the application of the suggested model.

نویسندگان

Sohrab Kordrostami

Academic member, Department of Applied Mathematics, Islamic Azad University, Lahijan, Iran,

Alireza Amirteimoori

Academic member, Department of Applied Mathematics, Islamic Azad University, Rasht, Iran,

Monireh Jahani Sayyad Noveiri

Ph. D. student, Islamic Azad University, Lahijan, Iran,