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一种支持高效检索的双重索引策略
Dual index strategy which supports high efficient searching
【摘要】 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。
【Abstract】 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.
【关键词】 可扩展标记语言;
路径表达式;
双重索引;
倒排文档;
【Key words】 XML(extensible markup language); path expression; dual index; inverted file;
【Key words】 XML(extensible markup language); path expression; dual index; inverted file;
【基金】 国家“863”计划资助项目(2001AA113182);陕西省科技攻关计划基金资助项目(2002K06-G5)
- 【文献出处】 计算机应用研究 ,Application Research of Computers , 编辑部邮箱 ,2007年11期
- 【分类号】TP312.2
- 【下载频次】85