supported by National Natural Science Funds of China for Innovative Research Groups(No.70821001);National Natural Science Funds of China(No.71222106,70901069 and 71171001);ScholarshipAward for Excellent Doctoral Student granted by Ministry of Education
The traditional data envelopment analysis (DEA) model can evaluate the relative efficiencies of a set of decision making units (DMUs) with exact values of inputs and outputs, but it cannot handle imprecise data. I...