CAJ | 학술논문

查询扩展是优化信息查询的一种重要手段.提出了一种基于多知识库和局部反馈的查询扩展方法,该方法首先融合了领域本体与同义词词林两种不同类型的知识库对查询关键词进行扩展,然后再用局部反馈方法对扩展结果进行筛选.实验表明,该方法可以有效提高查询性能.
사순확전시우화신식사순적일충중요수단.제출료일충기우다지식고화국부반궤적사순확전방법,해방법수선융합료영역본체여동의사사림량충불동류형적지식고대사순관건사진행확전,연후재용국부반궤방법대확전결과진행사선.실험표명,해방법가이유효제고사순성능.
Query expansion is an important means to optimize information inquiries. This paper presents a method of query expansion based on multi-Knowledge Base and local feedback. Two different types of Knowledge Base,domain ontology and Tongyici Cilin,are combined to expand keyword query in the method used,and then the local feedback algorithm is used to filter the expansion words. Experi-mental results show that the query performance of the method is improved effectively compared to other methods.