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对模糊专家系统中的复合模糊命题的真值计算方法进行探讨 ,从实际应用中总结出复合模糊命题中的子命题之间所具有的多种逻辑关系 ,诸如合取关系、析取关系、加权平均关系和弱逻辑关系 ,其中弱逻辑关系是笔者开发模糊专家系统时根据实际情况首次提出的一种新的逻辑关系 .并总结出复合模糊命题的各种真值计算方法的适用范围 .进而提出处理弱逻辑关系的方法 ,最后将弱逻辑关系与其它逻辑关系作比较
This paper discusses the method of calculating the true value of the compound fuzzy proposition in the fuzzy expert system. From the practical application, it concludes the various logical relations among the sub-propositions in the compound fuzzy proposition, such as the compound relationship, the disjunction, the weighted Average relationship and weak logical relationship, among which the weak logical relationship is a new logical relationship firstly proposed by author when developing fuzzy expert system according to the actual situation, and summed up the applicable range of various true value calculation methods of compound fuzzy proposition. Methods to deal with weak logical relations, and finally the weak logical relationship with other logical relations for comparison