پيشرفت و پسرفت واحدهاي تصميم گيرنده با استفاده از مرزهاي لايه اي

Progress and regress of decision making units Using outlier frontiers

This paper determines the progress and regress of a set of decision making units using outlier frontiers. Toward this end, we use tow types of models: ratio model (CCR model) and nonratio (SBM model of Tone).