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Received:April 13, 2009
Received:April 13, 2009
中文摘要: 针对Data Cube 的模式变动造成的多版本问题,对时态聚集关系与时态层次链进行了形式化描述,并基于这些关系实现了多个版本的Data Cube 的统一生成算法,不仅可以高效地进行Data Cube多个版本的维护,而且在OLAP 查询也可以基于时态层次链来执行,从而提高系统的整体效率。
中文关键词: 时态层次链 多维数据集 多版本维护
Abstract:This article first gives formalization definitions of temporal aggregation relation and temporal hierarchy chain for solving the data cube’s multi-version problem caused by pattern’s changes. Then a uniform algorithm for generating the multi-version data cube is proposed. It cannot only maintain the multi-version data cube effectively but also optimize the OLAP queries based on temporal hierarchy chains and thus the efficiency of system is improved.
文章编号: 中图分类号: 文献标志码:
基金项目:
Author Name | Affiliation |
XIAO Lei | 温州大学 物理与电子信息工程学院 浙江 温州 325035 |
HU Zhong-Yi |
Author Name | Affiliation |
XIAO Lei | 温州大学 物理与电子信息工程学院 浙江 温州 325035 |
HU Zhong-Yi |
引用文本:
肖磊,胡众义.基于时态层次链的Data Cube 多版本维护方案.计算机系统应用,2010,19(1):161-164
XIAO Lei,HU Zhong-Yi.A Multi-Version Maintain Scheme of Data Cube Based on Temporal Hierarchy Chains.COMPUTER SYSTEMS APPLICATIONS,2010,19(1):161-164
肖磊,胡众义.基于时态层次链的Data Cube 多版本维护方案.计算机系统应用,2010,19(1):161-164
XIAO Lei,HU Zhong-Yi.A Multi-Version Maintain Scheme of Data Cube Based on Temporal Hierarchy Chains.COMPUTER SYSTEMS APPLICATIONS,2010,19(1):161-164