| An input-and output-oriented data envelopment analysis model |
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| 引用本文： | FENG Ying-jun GAO Wei-zheng DING Wen-huan. An input-and output-oriented data envelopment analysis model[J]. 美中经济评论(英文版), 2007, 6(6): 34-44 |
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| 作者姓名： | FENG Ying-jun GAO Wei-zheng DING Wen-huan |
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| 作者单位： | School of Management, Harbin Institute of Technology, Harbin 150001, China |
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| 摘 要： | Considering the conventional data envelopment analysis （DEA） model used to measure the relative efficiencies of a group of decision making units （DMUs） is limited to either input or output orientation, a new DEA model which is both input-and output-oriented is proposed in this paper. This model can be treated as a multi-objective programming problem and solved by fuzzy sets theory. The basic idea is to describe the efficient frontier with fuzzy observation and determine projections for DMUs on the frontier by using the fuzzy optimization approach. The measurement of efficiencies for DMUs is obtained by comparing the inputs and outputs of DMUs with their projections. Since the input- and output-oriented DEA model can be transformed into a conventional input- or output-oriented DEA model by using special membership functions, it is therefore more adaptive for efficiency measurement. Finally, a typical example is presented to illustrate the computation methods.
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| 关 键 词： | 软件外包 输入输出设备 效率 模糊最优化 |
An input-and output-oriented data envelopment analysis model |
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| Abstract: | |
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| Keywords: | data envelopment analysis efficiencies multi-objective programming fuzzy optimization |
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