摘要
空间数据独有的多时空性、多尺度与多态性等,决定了空间数据的复杂性及海量特点,并且影响着空间数据库的响应速率。为了提高空间数据库的响应速率,提出了采用空间聚类CLIQUE算法与R-树结合建立空间数据索引结构的方法,对空间数据进行索引优化;通过实验对比,采用空间聚类CLIQUE算法与R-树结合对空间数据建立索引结构的优化方式,空间数据库的响应速率提高了8.64%。
Spatial data, such as multi-temporal and spatial, multi-scale and polymorphism, determined the complexity and characteristics of spatial data and affected the response rate of spatial database. In order to improve the response rate of spatial database, the method of spatial data index structure based on spatial clustering CLIQUE algorithm and R- tree was proposed in the paper. By comparing the experimental re- suits ,the spatial clustering CLIQUE algorithm and the R-tree were combined with the spatial data to es- tablish the optimization method of the index structure, the response rate of the spatial database increased by 8. 64%.
出处
《蚌埠学院学报》
2016年第4期23-27,共5页
Journal of Bengbu University
基金
安徽省省级地质勘查专项费(基金)项目(2013-K-09)
