| CCR模型中决策单元的区间效率值及其排序 |
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| 引用本文： | 王美强,梁樑.CCR模型中决策单元的区间效率值及其排序[J].系统工程,2008,26(4):109-112. |
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| 作者姓名： | 王美强 梁樑 |
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| 作者单位： | 中国科学技术大学,管理学院,安徽,合肥230026 |
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| 摘 要： | CCR模型中,决策单元的效率值为输出的加权平均与输入的加权平均比值的最大值,而本文则认为所有可能的输出的加权平均与输入的加权平均比值都是可能的效率值,因此决策单元的效率值为一区间.基于交叉效率方法,本文得出了决策单元的区间效率值并进行了排序.所得出的区间效率值不仅比传统的点效率值更加全面地反映决策单元的表现,而且由于交叉效率方法的自互评本质,它比已有的区间效率构建方法更加合理、可信.文末给出了一个算例.
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| 关 键 词： | CCR模型 交叉效率 区间效率 模型 决策单元 区间效率值 排序 Model Efficiency Interval Ranking 算例 加合 构建方法 互评 表现 交叉效率 最大值 比值 输入 加权平均 输出 |
The Constructing and Ranking of Interval Efficiency of DMUs in CCR Model |
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| WANG Mei-qiang,LIANG Liang.The Constructing and Ranking of Interval Efficiency of DMUs in CCR Model[J].Systems Engineering,2008,26(4):109-112. |
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| Authors: | WANG Mei-qiang LIANG Liang |
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| Institution: | WANG Mei-qiang,LIANG Liang(School of Management,University of Science , Technology of China,Hefei 230026,China) |
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| Abstract: | In CCR model,the maximum of relative ratio of weighted sum of outputs to that of inputs is regarded as the efficiency,but we think that all the possible ratio of weighted sum of outputs to that of inputs are assumed as the possible efficiencies,then the efficiency can be an interval.We formulate a CCR model with an interval efficiency which consists of efficiencies obtained from the cross efficiency,then all the DMUs are ranked by an interval ranking approach.Interval efficiencies obtained from our approach... |
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| Keywords: | CCR Model Cross Efficiency Interval Efficiency |
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