基于局部共现分析和概念语义的查询扩展研究

Research on QE Based on Local Co-occurrence Analysis and Concept Semanteme

针对信息检索中文档与查询之间的词不匹配问题,提出了一种基于共现分析和概念语义的查询扩展方法。该方法结合概念语义空间和局部共现分析来实现扩展,并改进了扩展词筛选函数。实验结果表明,该方法对于传统的查询扩展技术的信息查询效果有了很大提高,具有较好的查询性能。

To mismatching problem between queries and documents in current information retrieval system, a new method based on local co - occurrence analysis and concept is proposed. This method combines with concept of semantic space and local co - occurrence analysis, and the filter function of expand word is improved. The experiment results show that the information technology effect has been improved greatly and has better retrieval performance compare with traditional query expansion methods