The general form of fuzzy evaluation model is introduced. Thismodel makes it possible to analyse various influencing factors. The model parameters are determined by means of fuzzy statistics, Principal Components Analysis （PCA） and the Analytical Hierarchy Process （AHP）．%介绍了模糊评判数学模型的一般形式；提出用模糊统计方法来确定隶属函数；详细讨论了3种常用的模糊算子对及其参数的意义，提出用主成分分析法来确定评价指标的重要性测度集合
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