面向集聚分布空间数据的混合式索引方法研究 Research on the Hybrid Index Structure for Aggregated Spat

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面向集聚分布空间数据的混合式索引方法研究

Research on the Hybrid Index Structure for Aggregated Spatial Data

空间数据索引技术可以有效地提高空间数据在存储、处理、分析以及地图可视化中的效率,其性能优劣直接影响GIS的整体性能.该文针对格网索引和四叉树索引存在的问题,提出将四叉树嵌入格网形成一种混合式空间索引结构,并分析其原理、数据结构与影响参数.理论分析及实验证明,对于空间集聚分布状态的海量地理数据而言,混合式索引方法以略高的存储代价换取了更高的检索、插入和删除效率,是一种有效的空间索引方案.水利论文\#~i0q,r,sG

作 者: 周侗 龙毅 汤国安 胡雷地  
作者单位:周侗(南通大学地理科学学院,江苏,南通,226007)水利论文2]`!n dqHBw5X
龙毅,汤国安,胡雷地(南京师范大学虚拟地理环境教育部重点实验室,江苏,南京,210046) 
刊 名:地理与地理信息科学  ISTIC PKU
英文刊名:GEOGRAPHY AND GEO-INFORMATION SCIENCE 
年,卷(期):2010 26(1) 
分类号:P208 
关键词:混合索引   空间索引   GIS   地图可视化   hybrid index structure   spatial index structure   GIS   map visualization  
机标关键词:空间集聚分布状态空间数据混合式空间索引结构方法研究Spatial DataIndex StructureHybrid四叉树索引数据索引技术海量地理数据理论分析地图可视化直接影响整体性能影响参数效率索引方法数据结构 
基金项目:国家863计划项目,国家自然科学基金,南通大学自然基金 
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