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基于DJI分步实现的联机空间距离查询处理 被引量:2

Online Spatial Distance Queries Processing Based on the Multi-step Implementation of DJI
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摘要 综合考虑了查询处理时的计算费用和存储费用,提出了距离连接索引(Distance associatedJoinIn dices,DJI)的分步实现方法,以高效地支持联机空间距离查询。该方法采用分阶段计算DJI的策略,根据用户的查询条件动态地计算DJI的一部分以支持查询。实验研究证明,与传统方法相比,DJI的分步实现方法在性能上具有较大优势。 Takingbothcomputingandstoragecostforqueryprocessingintoconsideration ,weproposethemulti stepimple mentationalgorithmofdistance associatedjoinindices (DJI)toefficientlysupportonlinespatialdistancequeries .Thealgorithm computesDJIinastepwisestrategyinwhichonlyapartofjoinindicesiscomputeddynamicallyaccordingtotheuser’squerycondition .Experimentshowsthattheproposedmulti stepimplementationalgorithmofDJIhasconsiderableperformanceadvan tageoverthetraditionalmethods.
出处 《国防科技大学学报》 EI CAS CSCD 北大核心 2003年第6期5-9,共5页 Journal of National University of Defense Technology
基金 国防科技大学预研基金资助项目(JC02-04-018)
关键词 联机空间距离查询 距离连接索引 空间数据挖掘 空间数据库 online spatial distance queries distance-associated join in dices spatial data mining spatial databases
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参考文献7

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同被引文献6

  • 1张奋,潘梅生,邹北骥.基于SR-树的空间对象最近邻查询[J].计算机工程与应用,2007,43(4):173-175. 被引量:4
  • 2CORRAL A, MANOLOPOULOS Y, THEODORIDIS Y, et al. Algorithms for processing K-closet-pair queries in spatial databases[J]. Data & Knowledge Engineering, 2004, 49(1) : 67 - 104,
  • 3PAPADOPOULOS AN, NANOPOULOS A, MANOLOPOULOS Y. Processing distance join queries with constraints[ J]. Computer Journal, 2006, 49(3): 281-296.
  • 4SHIN H, MOON B, LEE S. Adaptive and incremental processing for distance join queries [J], IEEE Transactions on Knowledge and Data Engineering, 2003, 15(6) : 1561 - 1578.
  • 5Census 2000 TIGER[ EB/OL]. [ 2007 - 04 - 01 ]. http://www. census, gov./main/www/een2000, html.
  • 6梁银,张虹.一种多路空间距离连接查询处理方法[J].计算机应用,2008(1):155-158. 被引量:1

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