一种基于语义的Ontology映射方法

Semantics-Based Ontology Mapping Method

O n to logy映射是实现异构O n to logy互操作的有效方法,目前的O n to logy映射主要采用句法方法,而很少采用语义方法。本文提出了一种基于语义的O n to logy映射方法,该方法考虑了O n to logy中的概念属性,采用概念名称相似性、概念属性集合相似性、相关概念集合相似性等确定O n to logy之间的语义映射关系;采用语义半径提高了语义映射方法的灵活性。试验分析表明:该方法得到的映射的准确率和查全率在90%以上,准确率和查全率均优于S-M atch方法。该方法已在基于知识需求的主动式知识系统原型中实现,并在某研究所得到了应用。

Ontology mapping is an effective method to realize the interoperation of heterogeneous Ontologies. Syntax methods and few semantic methods are used in Ontology mapping. A semanticbased Ontology mapping method is proposed and concept properties are considered. Similarities of concept names, concept properties set, relevant concept set are used to calculate semantic mapping relation between two Ontologies. Semantic radius makes the semantic mapping method more flexible. Experimental result shows that the precision and the recall of mapping gained by the method are higher than 90%. The method exceeds S-Match method in precision and recall. The prototype of the active knowledge system based on knowledge requirement has been applied in a certain institute.