A Modified Model to Find the Most Efficient Decision-Making Unit

The use of data-envelopment analysis (DEA) to determine the most efficient decision making unit (DMU) has drawn attention in the literature. For some applications of DEA, decision-makers may only want to identify the most efficient DMU rather than determining the efficiencies of all possible DMUs. In this study, we present a modified model based on model in Özsoy, Örkcü [۱] [ Özsoy, V.S., H.H. Örkcü, and M. Örkcü, A simplistic approach without epsilon to choose the most efficient unit in data envelopment analysis. Expert Systems with Applications, ۲۰۲۱. ۱۶۸: p. ۱۱۴۴۷۲] to identify the most efficient DMU. The proposed model with low complexity respect to model in Özsoy, Örkcü [۱] find only one DMU with an efficiency score greater than one, while all others receive scores strictly less than one. This structure enhances the model’s ability to fully rank all units. To demonstrate its effectiveness and compare it with two well-known models, the proposed model is applied to two real-world examples from the literature. The results show the appropriate performance of the proposed model in identifying the most efficient units and full ranking of the units.

کلیدواژه ها:

Data envelopment analysis ، most efficient DMU ، Mixed integer linear programming ، ranking