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领域本体中的概念相似度计算 被引量:48

Caculation of the Concept Similarity in Domain Ontology
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摘要 借鉴计算语言学中的语义距离思想,提出了RDFSchema构词所描述的本体概念相似度计算方法,并利用该方法对农业知识本体(AO)所描述的部分概念进行了相似度计算和分析.结果表明,该方法可以定量地分析概念、特性之间的相似度,并可以指导基于领域知识本体的语义查询中的概念集扩充和查询结果排序. A method to calculate the semantic similarity of the ontology concepts described by RDF Schema constructs was proposed on the basis of the semantic distance theory in the linguistic field. This method was then used to calculate and analyze the semantic similarity of the concepts in Agriculture Ontology (AO). The result proves that the proposed method can be used to quantitatively analyze the semantic similarity of concepts and properties, and can also help to extend the query concept sets and rate the query results in domain ontology-based semantic query systems.
出处 《华南理工大学学报(自然科学版)》 EI CAS CSCD 北大核心 2004年第z1期147-150,共4页 Journal of South China University of Technology(Natural Science Edition)
基金 国家863计划资助项目(2003AA414016)
关键词 知识本体 语义距离 概念相似度 概念查询 ontology semantic distance concept similarity concept query
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