A semantic similarity approach combining location and intrinsic information content
To measure semantic similarity between terms is an important issue in many research fields. In this paper, a new semantic similarity approach, which combines the intrinsic information content of the term and the location of the term in the directed acyclic graph, is presented. The approach first calculates the sub graphs of two terms based the directed acyclic graph, and then calculates the intersection and union of the sub graphs. The semantic similarity of two terms is the ratio of the total intrinsic information content of terms in the intersection to the total intrinsic information content of terms in the union. Experimental evaluations using MeSH biomedical ontology indicate that the proposed approach yields results that correlate more closely with human assessments than other.
semantic similarity intrinsic information content MeSH DAG
Wei Wei Yang Xiang Qian Chen
College of Electronics and Information Engineering Tongji University Shanghai, China School of Infor College of Electronics and Information Engineering Tongji University Shanghai. China College of Electronics and Information Engineering Tongji University Shanghai, China
国际会议
长春
英文
215-218
2010-08-24(万方平台首次上网日期,不代表论文的发表时间)