| 用户兴趣驱动的冰山数据立方体构建及更新方法研究 |
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| 引用本文： | 高雅卓,倪志伟,郭峻峰,胡汤磊.用户兴趣驱动的冰山数据立方体构建及更新方法研究[J].计算机科学,2009,36(12):179-182. |
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| 作者姓名： | 高雅卓 倪志伟 郭峻峰 胡汤磊 |
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| 作者单位： | 1. 合肥工业大学管理学院,合肥,230009
2. 合肥工业大学过程优化与智能决策教育部重点实验室,合肥,230009 |
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| 基金项目： | 国家863高技术研究发展计划基金项目，国家自然科学基金项目 |
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| 摘 要： | 为了解决数据立方体完全物化占用过多存储空间的问题,以用户兴趣度为依据,从用户查询的实际情况出发,首次提出在矩阵基础之上进行冰山立方体构建的方法MICA,并在此基础上提出冰山立方体的增量式更新方法ICTU,以解决当用户兴趣发生改变时,需要物化的方体发生改变的问题.实验表明,MICC能够大大节省存储空间,有效支持用户查询,且利用增量方法ICIU能够使构建冰山立方体的效率大大提高.
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| 关 键 词： | 兴趣度 冰山立方体 频繁方体 增量更新 |
| 收稿时间： | 2009/1/15 0:00:00 |
| 修稿时间： | 4/3/2009 12:00:00 AM |
Research on Interest-driven Iceberg Cube Construction and Incremental Update Method |
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| GAO Ya-zhuo,NI Zhi-we,GUO Jun-feng,HU Tang-lei.Research on Interest-driven Iceberg Cube Construction and Incremental Update Method[J].Computer Science,2009,36(12):179-182. |
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| Authors: | GAO Ya-zhuo NI Zhi-we GUO Jun-feng HU Tang-lei |
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| Affiliation: | (School of Management,Helei University of Technology,Helei 230009,China);(Key Laboratory oI Process Optimization and Intelligent Decision-making oI Ministry of Education,Hefei University of Technology, Heifei 230009, China) |
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| Abstract: | This paper proposed a matrix-based iceberg construction method called MICC, in order to reduce the space Consumption during the full materialization for a data cube. Users' interests arc considered as the standard to construct an iceberg cube. On the basis of the result of MICC, the paper proposed an incremental update method to dynamically update the iceberg cube while the users' interests are changing. An experiment proves the efficiency and accuracy of these two methods MICC and ICIU. |
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| Keywords: | Interest Iceberg cube Frequent cuboid Incremental update |
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