| 基于聚集查询重写的近似计算及其应用 |
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| 引用本文： | 陈昕,陈维兴,苏锦祥. 基于聚集查询重写的近似计算及其应用[J]. 计算机工程, 2005, 31(8): 29-30,34 |
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| 作者姓名： | 陈昕 陈维兴 苏锦祥 |
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| 作者单位： | 北京信息工程学院计算机信息系统系,北京,100101;郑州大学计算机科学系,郑州,450052 |
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| 基金项目： | 国家自然科学基金资助项目(69873040) |
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| 摘 要： | 研究了聚集查询重写的特征，根据数据仓库环境下聚集查询需要快速计算的特点，给出了一个基于聚集查询重写的快速近似计算模型，并在人口统计信息系统中应用该计算模型实现快速查询计算，该近似快速计算模型可以应用于具有统计特征的数据环境，获得快速的查询计算结果。
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| 关 键 词： | 聚集实化视图 聚集查询重写 近似计算模型 统计应用 |
| 文章编号： | 1000-3428(2005)08-0029-02 |
Approximate Computation and Application Based on Aggregate Query Rewriting |
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| CHEN Xin,CHEN Weixing,SU Jinxiang. Approximate Computation and Application Based on Aggregate Query Rewriting[J]. Computer Engineering, 2005, 31(8): 29-30,34 |
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| Authors: | CHEN Xin CHEN Weixing SU Jinxiang |
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| Affiliation: | CHEN Xin1,CHEN Weixing1,SU Jinxiang2 |
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| Abstract: | This paper researches into the characteristic of aggregate query rewriting and gives a kind of rapidly approximate query computing model based on aggregate query rewriting under the data warehouse. The approximate query computing model is applied into a population statistic information system so that it achieves effective approximate answers. For realizing the quick and efficient answer to statistic data query, the approximate query computing model can be applied into these fields. |
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| Keywords: | Aggregate materialized view Aggregate query rewriting Approximate computing model Statistic application |
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