东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2004, Vol. 25 ›› Issue (7): 641-644.DOI: -

• 论著 • 上一篇    下一篇

一种构造数据仓库的基本时间轮转模型

夏秀峰;丛丽晖;于戈   

  1. 东北大学信息科学与工程学院;沈阳航空工业学院计算机学院;东北大学信息科学与工程学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2004-07-15 发布日期:2013-06-24
  • 通讯作者: Xia, X.-F.
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2001AA415210)·

Basic time rotation model used for constructing data warehouse

Xia, Xiu-Feng (1); Cong, Li-Hui (2); Yu, Ge (1)   

  1. (1) Sch. of Info. Sci. and Eng., Northeastern Univ., Shenyang 110004, China; (2) Sch. of Comp., Shenyang Inst. of Aero. Eng., Shenyang 110034, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2004-07-15 Published:2013-06-24
  • Contact: Xia, X.-F.
  • About author:-
  • Supported by:
    -

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摘要： 在分析数据仓库建立的一般方法基础上,提出了一种用于构建数据仓库的基本时间轮转模型·介绍了基本时间轮转机制的概念及实现原理,分析了时间轮转模型的特征;结合具体实例,详细描述了基于粗时间集的基本时间轮转模型构造方法及基于该模型基础上的相关行为·实践证明,与传统的数据仓库构造策略比较,时间轮转机制可有效保证数据汇总的幂等性,并对联机分析处理、数据挖掘和决策支持系统具有更好的可用性,在数据抽取效率、数据存储效力和系统构造便利性等方面也有较大提高·

关键词: 数据仓库, 时间轮转, 联机分析处理, 数据挖掘, 粗时间集

Abstract: Analyzing some conventional ways to construct data warehouse, a time rotation model that can be used to construct data warehouse is developed. The concept and implementation principle of basic time rotation mechanism are introduced and characteristics of this model are analyzed. The method of constructing a basic time rotation model based on rough time set and related operations are described with its application exemplified. Compared with conventional data warehouse construction strategies, the time rotation mechanism can provide the idempotence for data totaling and is more serviceable for on-line analytical processing, data mining and decision supporting system. The data extraction efficiency, data storage efficacy and operation convenience of data warehouse constructed by the time rotation model will be improved obviously.

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