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Description logics for fuzzy ontologies on semantic web

机译:语义网上模糊本体的描述逻辑

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摘要

To enable representation and reasoning for fuzzy ontologies with expressive fuzzy knowledge on the semantic web, a new fuzzy extension of description logics called the fuzzy description logics with comparison expressions (FCDLs) is presented. The syntax and semantics of FCDLs are formally defined, and the forms of axioms and assertions in FCDLs knowledge bases are specified. FCDLs combine both fuzzy concepts from the fuzzy description logics (FDLs) and cut concepts from the extended fuzzy description logics (EFDLs) in the same theory. Furthermore, cut concepts are extended into comparison cut concepts in FCDLs to represent comparison expressions between fuzzy membership degrees, which are often used in practice but not supported by the other fuzzy extensions of description logics. FCDLs have more expressive power than FDLs and EFDLs, and are able to represent expressive fuzzy knowledge and to perform reasoning tasks based on them. Therefore, FCDLs can enable representation and reasoning for fuzzy ontologies with expressive fuzzy knowledge on the semantic web.
机译:为了使语义本体上具有表达性模糊知识的模糊本体能够进行表示和推理,提出了一种新的描述逻辑的模糊扩展,称为具有比较表达式的模糊描述逻辑(FCDL)。正式定义了FCDL的语法和语义,并指定了FCDL知识库中的公理和断言的形式。 FCDL在同一理论中结合了来自模糊描述逻辑(FDL)的模糊概念和来自扩展模糊描述逻辑(EFDL)的剪切概念。此外,剪切概念被扩展为FCDL中的比较剪切概念,以表示模糊隶属度之间的比较表达式,该表达式经常在实践中使用,但不受描述逻辑的其他模糊扩展的支持。 FCDL比FDL和EFDL具有更多的表达能力,并且能够表示表达性模糊知识并基于它们执行推理任务。因此,FCDL可以使用语义网上的表达性模糊知识来实现​​模糊本体的表示和推理。

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