摘要
1.前言在数据库系统中,视图是由基表或其它视图导出的虚表,只在数据目录中保留其逻辑定义,而不作为一个表实际存储在数据库中。数据库管理员可以为特定的用户或用户群定义一个或多个视图,以限制或引导他们对数据库的访问。用户也可以定义视图,把自己的视野集中在有意义的范围内。在文[1]中,提出了Web用户视图的概念,将Web用户的注意力限制在其感兴趣的范围内。
In OLAP systems,it may be dull for users to find the interesting information after many multi-dimensional operations. In fact,each user usually takes care of some information. The different sessions of every user may show some similarity. On the basis of up conclusions, the concept of session view of users is given in this paper. With it,user can pay his attention to some information that he is interested in and find the interesting information quickly.
出处
《计算机科学》
CSCD
北大核心
2000年第12期59-61,共3页
Computer Science
