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澜沧江数据仓库中空间度量的物化选取

Selection of Materialized Spatial Measure in Lancang River Data Warehouse
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摘要 空间数据仓库技术是将数据仓库和联机分析处理技术应用到空间信息领域,以有效地支持空间数据分析和决策。空间度量的物化是提高空间联机分析处理响应速度的关键。该文在介绍澜沧江空间数据仓库基础上,介绍了空间度量的物化选取策略。 Spatial data warehouse is the result of importing the data warehouse and online analysis processing(OLAP)technology into the spatial information area,in order to support spatial data analysis.Materialization of spatial measures is the key of improving OLAP.In this paper,authers introduce the lancang river data warehouse,and provide the strategy about materialization of spatial measures.
出处 《计算机工程与应用》 CSCD 北大核心 2004年第18期178-180,共3页 Computer Engineering and Applications
基金 澜沧江流域空间数据仓库的构造及空间数据挖掘的应用(编号:2002F0013M )
关键词 空间数据仓库 物化 贪心算法 spatial data warehouse,materialization,greed algorithms
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