Deep Web数据库集成技术的研究

Research on the technology of Deep Web database integration

针对基于查询接口集成的web集成技术复杂且面向领域这一现象,提出了一种非实时查询Deep Web数据库集成技术.该技术通过在被检索网站安装客户端数据源应用程序,获取所有被检索网站的Deep Web数据源连接信息、Deep Web异构数据库表结构信息以及Deep Web异构数据库表数据.其中表结构和表数据经集成系统解析后以统一的格式集成到本地数据库.实验结果表明,该集成技术可集成所有领域的Deep Web异构数据库,没有领域限制.由于是本地查询查询速度也较快,具有一定的可行性.

In response to this phenomenon that web integration technology integrated based on query interface is complex and domain-oriented, this paper presents a non-real time query Deep Web database integration technology, which can obtain Deep Web data source connection information of all retrieved websites, their heterogeneous table structure information and table data by installing a client application. In this way, the table structure information and the table data can be parsed by integration system and then integrated to the local database in unified format. Experimental results show that this integration technology can integrate Deep Web heterogeneous database of all domains,there is no domain limit for it. Because it＇s a local query,it also has a faster query speed and higher feasibility.