Title :
Efficient Materialized View Selection Dynamic Improvement Algorithm
Author :
Lijuan, Zhou ; Xuebin, Ge ; Linshuang, Wang ; Qian, Shi
Author_Institution :
Inf. Eng. Coll., Capital Normal Univ., Beijing, China
Abstract :
Because static materialized views selection algorithm has many shortcomings, such as larger search space, higher time consumption and excluding query probability and distribution, and the changes in data sources can´t be reflected in datawarehouse immediately. In view of this, this paper implements dynamic adjustment for static materialized views selection algorithm according to CVLC and IGA, that is, EMVSDIA algorithm. The algorithm has been proved in reducing search space and time consumption by the experiment. Most of all, because the algorithm considers materialized views mutual relations in influencing view benefit. Consequently, the algorithm can be dynamicly adjusted online and obtains anticipative purpose.
Keywords :
data warehouses; CVLC; EMVSDIA Algorithm; IGA; datawarehouse; dynamic improvement algorithm; search space reduction; static materialized views selection algorithm; Algorithm design and analysis; Costs; Data engineering; Educational institutions; Fuzzy systems; Heuristic algorithms; Knowledge engineering; Probability; Space technology; Statistics; Data Warehouse; Maintenance Cost; Materialized Views;
Conference_Titel :
Fuzzy Systems and Knowledge Discovery, 2009. FSKD '09. Sixth International Conference on
Conference_Location :
Tianjin
Print_ISBN :
978-0-7695-3735-1
DOI :
10.1109/FSKD.2009.460