计算机工程与应用2011，Vol.47Issue(33)：36-38,58,4.DOI:10.3778/j.issn.1002-8331.2011.33.010
集合上封闭立方体的计算
Computation of closed cube on sets
摘要
Abstract
With the increase of the original data record count,the consumption of the date cube's storage space and computation time will be bigger and bigger.Closed cube is the valid method in decreasing data cube' s storage space.This paper comes up with a new generating algorithm of closed data cube.Aiming at the plenty of original data set,by means of pre-treatment, the sealed units are outputted using the recursion of the computation sequence from above to below which is similar to BUC algorithm.Some experiments are done by practical data.The results of experiments demonstrate that the algorithm can effectively improve the generating speed.关键词
联机分析处理/预处理/封闭立方体/集合Key words
On-Line Analytical Processing(OLAP)/pretreatment/closed cube/set分类
信息技术与安全科学引用本文复制引用
倪志伟,孟金华,毛雪岷..集合上封闭立方体的计算[J].计算机工程与应用,2011,47(33):36-38,58,4.基金项目
国家高技术研究发展计划(863)(the National High-Tech Research and Development Plan of China under Grant No.2007AA04Z116) （863）
国家自然科学基金(No.70871033,No.70801025). （No.70871033,No.70801025）
