Volume 37 Issue 12
Dec.  2012
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FU Zhongliang, LIU Siyuan. MR-tree with Voronoi Diagrams for Parallel Spatial Queries[J]. Geomatics and Information Science of Wuhan University, 2012, 37(12): 1490-1494.
Citation: FU Zhongliang, LIU Siyuan. MR-tree with Voronoi Diagrams for Parallel Spatial Queries[J]. Geomatics and Information Science of Wuhan University, 2012, 37(12): 1490-1494.
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MR-tree with Voronoi Diagrams for Parallel Spatial Queries

  • 1 School of Remote Sensing and Information Engineering,Wuhan University,129 Luoyu Road,Wuhan 430079,China

Funds: 国家科技支撑计划资助项目(2011BAK07B02-01)
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  • Received Date: October 07, 2012
  • Published Date: December 04, 2012
    Graphical Abstract
    • Abstract
  • Spatial indices are used by spatial databases to optimize spatial queries.We introduce a parallel spatial range query algorithm based on VoMR-tree index.The MR-tree is firstly augmented to store the nearest neighbors and constructs the Voronoi diagram.Then a range query algorithm based on VoMR-tree index is proposed.In processing a range query,the data partition method so that can improve the efficiency by parallelization in distributed database is discussed.The experimental results show that the proposed method improves the performance of range query processing in comparison with the widely-used methods.
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