TY - GEN
T1 - Technical and cost efficiencies with ranking function in fuzzy data envelopment analysis
AU - Hasuike, Takashi
PY - 2011/10/6
Y1 - 2011/10/6
N2 - This paper considers a fuzzy DEA-based model of technical and cost efficiencies with a ranking function. Previous studies of fuzzy DEA model in terms of cost efficiency had critical shortcoming if the unit prices of the inputs are not identical across DMUs in the economy. Therefore, in this paper, a new fuzzy model is proposed by extending the revised scheme of DEA-based technical and cost efficiencies that are free from such inconsistencies. The proposed model is a fuzzy programming problem, and so introducing a ranking function for fuzzy inequalities, it is equivalently transformed into a linear programming problem. Furthermore, comparing the proposed model with the original model, a numerical example derived from hospital data is provided.
AB - This paper considers a fuzzy DEA-based model of technical and cost efficiencies with a ranking function. Previous studies of fuzzy DEA model in terms of cost efficiency had critical shortcoming if the unit prices of the inputs are not identical across DMUs in the economy. Therefore, in this paper, a new fuzzy model is proposed by extending the revised scheme of DEA-based technical and cost efficiencies that are free from such inconsistencies. The proposed model is a fuzzy programming problem, and so introducing a ranking function for fuzzy inequalities, it is equivalently transformed into a linear programming problem. Furthermore, comparing the proposed model with the original model, a numerical example derived from hospital data is provided.
KW - Data Envelopment Analysis (DEA)
KW - cost and technical efficiencies
KW - fuzzy theory
KW - ranking function
UR - http://www.scopus.com/inward/record.url?scp=80053413589&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80053413589&partnerID=8YFLogxK
U2 - 10.1109/FSKD.2011.6019704
DO - 10.1109/FSKD.2011.6019704
M3 - Conference contribution
AN - SCOPUS:80053413589
SN - 9781612841816
T3 - Proceedings - 2011 8th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2011
SP - 727
EP - 730
BT - Proceedings - 2011 8th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2011
T2 - 2011 8th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2011, Jointly with the 2011 7th International Conference on Natural Computation, ICNC'11
Y2 - 26 July 2011 through 28 July 2011
ER -