一种基于模糊集 IFScom*的模糊综合评判及应用

摘要

模糊集 FScom 提出知识中的否定关系可分为矛盾否定关系、对立否定关系和中介否定关系。针对模糊集 IFScom 在处理多重λ-中介否定问题时会产生较大偏差，对其中介否定算子作了改进。改进的新模糊集 IFScom*具有的性质更利于解决实际问题。在此基础上提出一种基于 IFScom*的模糊综合评判方法，通过对地震自然灾害等级评判的应用，结果表明该方法是合理有效的。%Fuzzy set FScom proposes that the negative relation in knowledge can be divided into three types:the contradictory negation, the opposite negation and the medium negation.In light of the problem that fuzzy set IFScom will introduce large error to handling multiple λ-medium negative,we improve the medium negation operator among them.The nature the improved new fuzzy set IFScom* possesses is conducive to solving practical issues.On this basis,we propose an IFScom*-based fuzzy comprehensive evaluation method,by applying it in evaluating the grade of earthquake natural disaster,the results show that this method is reasonable and effective.