摘要
提出了一种新的XML查询方案,将内容查询置于结构查询之前,并在结构查询中提出M集合的概念,通过计算查询树的M集合和简化后的DTD的M集合之间的编辑距离,对XML文档进行排序,不仅减少了查询时间,而且在保证查全率的同时提高了查询的查准率。
Based on editing distance, a new XML query solution was proposed. To reduce the searching time, this solution performed content query before schemas query. Furthermore, M aggregation was introduced in schemas query, XML documents were ranked by the editing distance between the M aggregation of querying tree and the M aggregation of simplified DTD, which improved the precision while maintaining a high level recall.
出处
《计算机应用》
CSCD
北大核心
2006年第12期2991-2993,共3页
journal of Computer Applications
关键词
内容查询
结构查询
相关树
M集合
编辑距离
content querying
schemas querying
related tree
M aggregation
editing distance
