%0 Journal Article
%T Dynamic Selection of Materialized Views of Multi-Dimensional Data<br>多维数据实视图的动态选择
%A TAN Hong-xing
%A ZHOU Long-xiang
%A <br>谭红星
%A 周龙骧
%J 软件学报
%D 2002
%I 
%X A novel method is proposed to select materialized views of multi-dimensional data called dynamic selection. The idea of dynamic selection is that the system is in charged of collecting the queries to obtain their distribution. The set of materialized views is adjusted dynamically according to the queries?distribution. The method is given in detail including the algorithm of single-step selection and the instant adjusting method. It is also proved that under certain constraints, the performance of the single-step algorithm is guaranteed to be no worse than that of the optimal one by a certain bound.The xeperimental results show that the dynamic selection is more effective than other solutions.
%K materialized view
%K OLAP (online analytical processing)
%K multi-dimensional data
%K data warehousing<br>实视图
%K OLAP(online
%K analytical
%K processing)
%K 多维数据
%K 数据仓库
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=8DFF4CB236ED6B72&yid=C3ACC247184A22C1&vid=FC0714F8D2EB605D&iid=B31275AF3241DB2D&sid=602F518C16859E7D&eid=BE1F29C193C78397&journal_id=1000-9825&journal_name=软件学报&referenced_num=19&reference_num=9