| 基于遗传算法的受限物化视图 |
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| 引用本文： | 刘杰,蒋朝惠,党继胜. 基于遗传算法的受限物化视图[J]. 网络安全技术与应用, 2007, 0(6): 61-62 |
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| 作者姓名： | 刘杰 蒋朝惠 党继胜 |
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| 作者单位： | 贵州大学信息工程学院,贵州,550003 |
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| 摘 要： | 受限物化视图的选择是当前数据仓库研究的最重要的问题之一,且其是个NP问题。本文通过对视图与查询关系的研究,提出了一种选择物化视图的两阶段算法框架,首先利用候选视图选择算法缩小视图选择的范围,而后利用遗传算法解决受限物化视图的选择问题。
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| 关 键 词： | 物化视图 候选视图 遗传算法 |
Selection of Materialized ViewsUnder Cost Constraints Based on Genetic Algorithm |
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| Liu Jie,Jiang Chaohui,Dang Jisheng. Selection of Materialized ViewsUnder Cost Constraints Based on Genetic Algorithm[J]. Net Security Technologies and Application, 2007, 0(6): 61-62 |
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| Authors: | Liu Jie Jiang Chaohui Dang Jisheng |
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| Abstract: | Materialized view selection under cost constraint is one of the most important issues in data warehouse development,and it is a NP.By deeply researched the relationship of views and queries,a tow-phases algorithm is designed to resolve the problem.Firstly,candidate views selection algorithm is used to reduce the selection range.Based on that,we has successfully resolve the problem of materialized views selection with Genetic algorithm. |
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| Keywords: | materialized view candidate views genetic algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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