| 一种构造数据仓库的扩展时间轮转模型 |
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| 引用本文： | 夏秀峰,丛丽晖,于戈.一种构造数据仓库的扩展时间轮转模型[J].东北大学学报(自然科学版),2004,25(8):746-749. |
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| 作者姓名： | 夏秀峰 丛丽晖 于戈 |
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| 作者单位： | 东北大学,信息科学与工程学院,辽宁,沈阳,110004;沈阳航空工业学,院计算机学院,辽宁,沈阳,110034 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 阐述了抽象属性、广义抽象属性、时间标注、时域和抽象属性的拓展等与扩展时间轮转模型相关的基本概念,描述了扩展时间轮转模型的原理、分类和相关因素,介绍了面向客观主题及面向时间特征的扩展时间轮转模型的构造策略·结合具体实例,从存储效率、数据抽取效率、构造便利性和实用性等多方面分析了时间轮转模型和传统数据仓库模型的优缺点·实践表明,按时间轮转模型构造的数据仓库,对联机分析处理和数据挖掘等技术都有较好的支持·
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| 关 键 词： | 数据仓库 时间轮转 抽象属性 时间标注 联机分析处理 数据挖掘 |
| 文章编号： | 1005-3026(2004)08-0746-04 |
| 修稿时间： | 2003年11月17 |
Time-Extended Rotation Model Used for Constructing Data Warehouse |
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| XIA Xiu-feng,CONG Li-hui,YU Ge.Time-Extended Rotation Model Used for Constructing Data Warehouse[J].Journal of Northeastern University(Natural Science),2004,25(8):746-749. |
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| Authors: | XIA Xiu-feng CONG Li-hui YU Ge |
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| Institution: | XIA Xiu-feng~1,CONG Li-hui~2,YU Ge~1 |
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| Abstract: | A new time-extended rotation model is developed used to construct data warehouse, with some related concepts elucidated covering abstract attribute, generalized abstract attribute, time-labeling, time domain and widened abstract attribute. The principle, classification and correlated factors of time-extended rotation model are described, with the subject-oriented and time-oriented methods also introduced as the construction strategies. With some application examples, the advantages and disadvantages of traditional DW model and time rotation model are discussed in view of the storage efficiency, data extraction efficiency, convenience in construction and practicability. The data warehouse constructed using the time rotation model will support the OLAP and DM well. |
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| Keywords: | data warehouse time rotation abstract attribute time-labeling on-line analytical processing data mining |
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