中文摘要：

本体是概念、属性和关系的集合.本体异构是本体间互操作的主要障碍,解决本体异构最好的方法是本体映射.本体映射的关键是概念相似度的计算,但计算时一般不考虑关系和属性对相似度的影响,计算结果存在误差.论文从两个方面对概念的相似度进行计算.首先计算概念的语义相似度,然后计算概念描述相似度.实验表明该计算方式可以提高计算结果的精确度.

英文摘要：

Ontology is usually viewed as the sets of concepts,attributes and relations.Ontology heterogeneity is the primary obstacle for interoperation of ontology.Ontology mapping is the best way to solve the problem.The key of ontology mapping is to compute similarities between concepts.In general,the computation of similarities doesn＇t consider the influences of relations and attributes.Therefore calculative results have errors.In this paper,the similarity is computed with two aspects：first computing the semantic similarity,and then computing the descriptive similarity.Experiments results show that this calculative method can improve the precision of calculative results.