【摘要】：針對DEA評價與排序時單獨采用相對最優(yōu)效率模型與相對最差效率模型,存在丟失重要信息的不足,引入DEA模型區(qū)間效率的概念,把兩種評價模型有機結合,可實現(xiàn)對決策單元更合理的評價與排序。進一步改進了DEA區(qū)間效率模型,并對其計算效果進行分析,找出了計算決策單元區(qū)間效率的合理模型。在此基礎上引入決策者的偏好系數(shù)β來計算區(qū)間效率的評價指標,分析得出當0≤β≤0.5時采用相對最差效率模型,0.5≤β≤1時采用相對最優(yōu)效率模型來計算區(qū)間效率這一結論。通過具體的數(shù)值算例,對決策者偏好不同的情況下決策單元區(qū)間效率的評價指標進行計算和敏感性分析,計算結果表明,改進的DEA區(qū)間效率模型對決策單元排序更為合理。
[Abstract]:In order to solve the problem that the relative optimal efficiency model and the relative worst efficiency model are used separately in the evaluation and ranking of DEA, the concept of interval efficiency of DEA model is introduced, and the two evaluation models are combined organically. A more reasonable evaluation and ranking of the decision making unit can be realized. The interval efficiency model of DEA is further improved, and its calculation effect is analyzed, and a reasonable model for calculating interval efficiency of decision making unit is found out. On this basis, the decision maker's preference coefficient 尾 is introduced to calculate the evaluation index of interval efficiency, and the relative worst efficiency model is obtained when 0 鈮，

本文編號：2299387