基于XML信息检索技术的研究

摘要

基于XML信息检索技术首先要解决的是建立一个比较高效的索引机制.索引是实现快速查询的重要保证.在介绍了两种基于关系数据库索引技术的基础上,提出一种新的倒排索引技术,并在查询效率和存储开销两个方面进行对比分析,通过实验数据说明新索引技术可取得查询效率和存储开销的最佳权衡.%The importance of infonnation retrieval based on XML should establish the more efficient index mechanism, because index can ensure the fleet query. After the introduction of two kinds of index technology based on RDBMS ,it provides a new kind of inverted index technology. The experimental data got from comparatine analysis shows that the new kind of inverted index can get best balance of query efficiency and space cost by data.