【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.更多还原

【Abstract】 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.更多还原