摘要： Since nowadays there are a great deal of semistructured data on the Internet and heterogeneous data integration systems,in-depth research on this kind of data is very important.In this paper,we propose a system model.Webmanager,for Internet information ma

关键词: Internet 计算机网络 数据管理 系统模型 搜索引擎 信息查询 WWW 数据库