改进的领域本体概念语义相似度计算方法

摘要

基于领域本体的树状层次结构,从路径距离、语义重合度、语义深度、语义密度和概念属性几个角度讨论并优化了领域本体概念语义相似度的计算方法.该方法在聚焦爬虫网页分析中的成功应用,充分验证了它对概念语义相似度进行量化的准确性.%Based on tree hierarchical structure of domain ontology, in the paper we discuss and optimise the computational method for conceptual semantic similarity in domain ontology in terms of such factors as distance between two nodes, semantic overlapping degree, semantic depth, semantic density and concept attributes. Its successful application in page-analysis by focused-crawler fully proves its accuracy in quantifying conceptual semantic similarity.