FDEA

The FDEA algorithm introduces the fuzzy logic into classical DEA methods, and the algorithm take the weight of the input and output as variables to evaluate the web source quality, so that it can avoid the effect of subjectivity to the result.

FDEA方法将模糊逻辑引入经典的DEA方法，该算法是以输入输出指标的权重为变量进行评测，从而有效避免了人为确定指标权重的主观因素对评测结果的影响。

First, we appraise the validity of the medicine on the AIDS virus. For the existence of non-expectation output ( AIDS viral quantity), FDEA model that has non-expectation output decision units can be chosen to analysis and appraisal.

第一步，首先评价药物对艾滋病病毒的有效性问题，由于存在非期望输出（艾滋病病毒量），因此选用具有非期望输出决策单元的FDEA模型进行分析评价。

The application of FDEA model shows its importance in the production to save the resources, improve the desirable outputs, and decrease the undesirable outputs, especially reduce the environmental pollution.

结合实际算例，指出FDEA模型在实际生产过程中对于节约生产资源，提高期望输出，降低非期望输出，特别是减少环境污染有重要应用价值。

The researching on the DMUs with undesirable output gives the non-radial model FDEA of the relative efficiency measurement, proves the efficiency theories, and calculates the example.

针对所提出的具有非期望输出决策单元DMU的相对有效性，提出对其进行评价的非径向FDEA模型，给出了模型的相对有效性理论证明。