基于区间效率的决策单元排序方法研究
发布时间：2018-10-30 07:46
【摘要】：针对DEA评价与排序时单独采用相对最优效率模型与相对最差效率模型,存在丢失重要信息的不足,引入DEA模型区间效率的概念,把两种评价模型有机结合,可实现对决策单元更合理的评价与排序。进一步改进了DEA区间效率模型,并对其计算效果进行分析,找出了计算决策单元区间效率的合理模型。在此基础上引入决策者的偏好系数β来计算区间效率的评价指标,分析得出当0≤β≤0.5时采用相对最差效率模型,0.5≤β≤1时采用相对最优效率模型来计算区间效率这一结论。通过具体的数值算例,对决策者偏好不同的情况下决策单元区间效率的评价指标进行计算和敏感性分析,计算结果表明,改进的DEA区间效率模型对决策单元排序更为合理。
[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，
本文编号：2299387
[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，
本文编号：2299387
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