【摘要】 为了提高对复杂模糊信息的表示能力,提出一种扩展的模糊描述逻辑.扩展模糊描述逻辑引入模糊概念和模糊关系的截集形式作为原子概念和原子关系,继承经典描述逻辑中的概念构造器和知识库形式,建立新的知识表示逻辑体系.定义了扩展模糊描述逻辑的语法结构、语义解释、知识库形式以及基于可满足性的推理问题.通过与模糊描述逻辑的比较,阐述了模糊描述逻辑可转化为扩展模糊描述逻辑,从而例证了扩展模糊描述逻辑具有比模糊描述逻辑更强的表达能力.更多还原

【Abstract】 An extended fuzzy description logic is proposed to increase expressive power for complex fuzzy information.The extended fuzzy description logic introduces the cut sets of fuzzy concepts and fuzzy roles as atomic concepts and atomic roles,and inherits the concept constructors and knowledge base form of classical description logics to support a new logic system for knowledge representation.The definitions of syntax structure,semantic interpretation,knowledge base form and reasoning problems based on satisfiability are given for the extended fuzzy description logic.Comparing with the fuzzy description logic,it can be explained that fuzzy description logic can be converted into the extended fuzzy description logic,which extends the expressive power of the fuzzy description logic.更多还原