Using the idea of Local Context Analysis,in this paper we proposed a novel expansion method,called LOCOOC,which utilized the local co-occurrence information in top-ranked documents and the global statistical information in the whole collection to select most appropriate expansion terms.
针对信息检索中文档与查询之间的词不匹配问题,本文提出了一种基于局部共现的查询扩展方法LOCOOC。
