In data envelopment analysis, anyone can do classification decision units with efficiency
scores. It will be interesting if a method for classification of DMUs without regarding to efficiency
score is obtained. So in this paper, the classification of Decision Making Units (DMUs) is done
according to the additive model without being solved for obtaining scores efficiency. This is because it
is known that the additive model is the simplest non-radial model in DEA. In fact, the classification of
DMUs to a set of efficient, weak efficient, and inefficient units, based upon feasibility concept is done
here. Especially, the models and theorems for this aim are presented.
Keywords: Data Envelopment Analysis, Classification, Decision Making Units.
F. Rezai Balf, R. Shahverdi. A Method for DMUs Classification in DEA. International Journal of Applied Operational Research 2011; 1 (2) URL: http://ijorlu.liau.ac.ir/article-1-79-en.html