摘要
本文研究在本体构建的语义网环境下,量化领域概念的关联程度扩展概念,实现概念检索的问题.利用语义的层次结构和蕴涵关联计算语义相似度和相关度,并结合二者,提出语义扩展度的概念及计算方法,由此控制调整扩展概念集的范围和大小.经过实例计算与分析,验证并阐明了该方法的合理性、有效性及其特点.
In semantic Web environment based on ontology, research on evaluating relation of concepts integrated to implementation of conceptual expansion and retrieval is made. In the paper, the method for calculating semantic similarity and relativity by use of taxonomy and entailment relations of ontology is proposed firstly. Furthermore, by integrating similarity with relativity, semantic expanding is evaluated, which is used as a criterion for conceptual expanding. Finally, the scheme is proved reasonable and valid by concrete tests and analysis.
出处
《情报学报》
CSSCI
北大核心
2007年第5期728-732,共5页
Journal of the China Society for Scientific and Technical Information
基金
本论文得到2005年广州市哲学社会科学十五规划项目资助（项目号：10000-4222214）.
关键词
语义相似度
语义相关度
概念扩展
semantic similarity, semantic relativity, conceptual expanding
