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- The conceptions of data envelopment analysis (DEA) model and DEA efficiency are introduced,the DEA congestion model was established and its extensive methodology are discussed. 介绍数据包络分析(DEA)模型及DEA有效的概念;
- In this paper we discuss the structure on the DMU set of DEA efficiency about C2R and C2W models, and obtain some theoretical results. These results are of important significance in practice. 本文对C~2R和C~2W模型下的DEA有效决策单元集合在结构上进行了一定探讨,得到了一些理论上新的结果,具有一定的实际意义。
- The analysis of DEA efficiency and economy of scale is conducted for various decision-making units, and the improvement direction for decision-making units with DEA inefficiency is given. 对各决策单元进行了DEA有效和规模效益分析,并给出了非DEA决策单元的改进方向。
- According to the analysis of DEA efficiency and scale benefits of each DMU, the situation of production of each year is evaluated, to further evaluate the management efficiency of Yangzhou Port. 通过扬州港各决策单元的DEA有效性和规模收益分析,对其各年份的生产情况进行评价,从而衡量扬州港的生产经营效率状况,有利于港口企业在发展中准确定位,也为港口的投资建设提供决策指导。
- The approaches to evaluating DEA efficient DMUs(Decision Making Units) based on production frontier are studied. 对基于生产前沿面的DEA有效单元评价方法进行了研究。
- The paper gives a method to make Decision Making Unit(=DMU) DEA efficient(C2R or C2GS2) with changing outputs of DMU only. 给出了只改变输出使决策单元变为DEA有效(C2R或C2GS2)的一种方法。
- For DEA efficient (C 2GS 2) DMU,this paper gives efficient theorems on estimation of returns to scale by additive model in DEA. 对 DEA有效 ( C2 GS2 )的决策单元 ,本文用加性 DEA模型来有效地判断其规模收益情况
- THE GRADIENT OF DEA EFFICIENCY AND APPLICATION DEA有效的梯度和应用
- The Structure on the DMU Set of DEA Efficiency DEA有效决策单元集合的结构
- In this method to tell whether one DMU is DEA efficient or not is based on the frontier of real sample points, so it is called Data Envelopment Analysis. 由于该方法中判断某个决策单元是否DEA有效,是以各实际样本点的外包络面为基础的,因此称为数据包络分析。
- It is proved in this paper that under some conditions decision making unit (DMU) with revenue maximization (cost minimization) is weak DEA efficient (C 2R). 证明了在一定条件下收益最大 (成本最小 )的决策单元为弱 DEA的有效 (C2 R)。
- Based on this, all the DMUs are classified into three types, which are interval DEA efficient, interval DEA partly efficient and interval DEA unefficient. 然后按区间效率值将所有决策单元分为三类,即区间DEA有效、区间DEA部分有效和区间DEA无效。
- In addition, the necessary and sufficient condition that a decision . making unit (DMU) is DEA efficient (C2GS2) and the condition that optimal solution to DEA model (C2GS2) is unique are presented under single input and single output system. 最后给出了单输入单输出系统下决策单元为DEA有效(C~2GS~2)的充要条件及最优解唯一的条件。
- For efficient decision making unit(DMU) on techical efficieny defined by Li Guangjin and Yan Hong, this paper proves that it is DEA efficient ?(C2GS2),? then it is discussed that inefficient DMU is transformed efficient. 对李光金、阎洪先生所定义的技术有效的决策单元;证明了它是DEA有效(C~2GS~2)的;而且讨论了将非有效的决策单元转变为有效.
- By utilizing the project analysis on DEA efficient frontier,the adjustment quantity of inefficient DMU input indexes are ensured,and it can provide reliable basis for optimizing materiel cost scale. 最后利用决策单元在相对有效前沿面上的投影分析,明确了非有效单元投入指标的调整量,为优化装备费用规模提供决策支持。
- By utilizing the project analysis on DEA efficient frontier, the adjustment quantity of inefficient DMU input indexes are ensured, and it can provide reliable basis for optimizing materiel cost scale. 最后利用决策单元在相对有效前沿面上的投影分析,明确了非有效单元投入指标的调整量,为优化装备费用规模提供决策支持。
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- We must improve our efficiency as soon as possible. 我们必须尽快地提高工作效率。
- Their labor efficiency is very high. 他们的工作效率很高。
- We were most impressed with/by your efficiency. 你的工作效率很高,我们极为钦佩。