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arXiv 1503.02306math.OC
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数据挖掘分析中决策单元数和变量数的处理

How to deal with numbers of decision making units and variables in data envelopment analysis

Dariush Khezrimotlagh

摘要:

在过去的三十年里,与输入和输出变量的数量相比,足够数量的决策单元(DMU)一直是使用数据包络分析(DEA)的关注点。在DEA的文献中有几项研究试图通过提供额外的程序来增加DMU的数量,减少变量的数量或找到DMU数量与变量之间的关系来处理这个问题。然而,有没有关注的数量的决策单元相比,变量的数量,而Kourosh和Arash方法(KAM)的应用。在不附加任何条件和方法的情况下,给出了一个几何原因来说明该方法的有效性。该方法非常简单,没有现有方法的计算复杂性,即使决策单元的数量小于变量的数量。一个实际的32个DMU的45个变量的数值例子证明了所提出的技术的优点。

英文摘要:

Sufficient numbers of Decision Making Units (DMUs) in comparison with the number of input and output variables has been a concern of using Data Envelopment Analysis (DEA) in the last three decades. There are several studies in the literature of DEA which have tried to handle this issue by providing additional procedures to increase the number of DMUs, decreasing the number of variables or finding a relationship between the number of DMUs and variables. However, there are no concerns about the number of DMUs in comparison with the number of variables while Kourosh and Arash Method (KAM) is applied. A geometric reason is provided to depict the validity of the method without any extra conditions or additional methodologies. The technique is quite simple with no computational complexities of current methodologies even if the number of DMUs is less than the number of variables. A real-life numerical example of 32 DMUs with 45 variables demonstrates the advantages of the proposed technique.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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