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。
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。
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