An Improved Hilbert Curve for Parallel Spatial Data Partitioning

被引:13
|
作者
Meng Lingkui [1 ]
Huang Changqing [1 ]
Zhao Chunyu [1 ]
Lin Zhiyong [1 ]
机构
[1] Wuhan Univ, Sch Remote Sensing & Informat Engn, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China
基金
中国国家自然科学基金;
关键词
parallel spatial database; spatial data partitioning; data imbalance; Hilbert curve;
D O I
10.1007/s11806-007-0107-z
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
A novel Hilbert-curve is introduced for parallel spatial data partitioning, with consideration of the huge-amount property of spatial information and the variable-length characteristic of vector data items. Based on the improved Hilbert curve, the algorithm can be designed to achieve almost-uniform spatial data partitioning among multiple disks in parallel spatial databases. Thus, the phenomenon of data imbalance can be significantly avoided and search and query efficiency can be enhanced.
引用
收藏
页码:282 / 286
页数:5
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