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数据仓库中物化视图选择的一种混合算法
引用本文:徐海涛,郑宁.数据仓库中物化视图选择的一种混合算法[J].计算机工程与设计,2005,26(10):2752-2755.
作者姓名:徐海涛  郑宁
作者单位:杭州电子科技大学,计算机学院,浙江,杭州,310018
摘    要:物化视图是数据仓库中提高查询效率的有效方法,物化视图选择问题是数据仓库设计时期最重要的决定之一。通过研究和实验,提出了一种结合遗传算法和模拟退火算法的混合算法,用于解决物化视图的选择。理论分析和实验结果表明,该混合算法的搜索性能优于传统的遗传算法,能够提供更高质量的解。

关 键 词:物化视图选择  遗传算法  模拟退火算法
文章编号:1000-7024(2005)10-2752-04
收稿时间:2004-09-10
修稿时间:2004-09-10

Hybrid algorithm of materialized views selection in data warehouse
XU Hai-tao,ZHENG Ning.Hybrid algorithm of materialized views selection in data warehouse[J].Computer Engineering and Design,2005,26(10):2752-2755.
Authors:XU Hai-tao  ZHENG Ning
Affiliation:School of Computer, Hangzhou Dianzi University, Hangzhou 310018, China
Abstract:Materialized view is an effective mothed for improving the efficiency of queries in data warehouse system, and the problem of materialized view selection is one of the most important decisions, Through study and experiment, a hybrid algorithm was offered that combined genetic algorithm and simulated annealing algorithm to solve the problem of materialized view selection. Theory analysis and experiment result prove that the hybrid algorithm could provide the solution with higher quality and its search ability excels the traditional one.
Keywords:materialized view selection  genetic algorithm  simulated annealing algorithm
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