基于本体的概念辨析

Concept Distinguish Based on Ontology

针对信息查询中使用关键词查询方案遇到的查全率和查准率不高的情况,使用基于本体的语言标注对信息源进行描述来提高查全率;采用基于本体的语义辨析来提高查准率。基于本体的语义辨析的方法在避免词汇歧义上有较好的成效,在信息搜索中能有效地提高准确率,但同时也存在计算量相对较大、查询反应时间延长等问题。

When keywords are used to retrieve information, the recall factor and precision are low. According this situation, Ontology annotation technology is used to describe the information in Website or information database to improve the recall factor. And in this paper, a concept distinguish technology based on ontology is used to improve precision. Actually, in the information retrieval experiment the precision of the retrieval is improved. But the response is delayed because of the bigger computing magnitude.