一种支持高效检索的双重索引策略

Dual index strategy which supports high efficient searching

从信息检索角度出发,提出一种高效的索引,在结构索引中集成了倒排文档,可同时查询XML结构部分和关键词。双重索引策略很好地解决了基于路径表达式查询效率低的问题。

This paper examined an XML collection from the viewpoint of information retrieval （IR）, and suggested an efficient index which combining the inverted file with a structure index, it could implement retrieval both on context and structure. The problem of low query efficiency based on path expression was well solved with dual index strategy.