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基于K-means聚类距离准则的R树结点分配算法研究 被引量:3

Research on R-Tree node assignment algorithm based on minimum of K-Means clustering distance
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摘要 对于空间数据库,R树索引是非常有效的空间索引。本文针对R树的结点分配算法存在的不足,提出了一种新的结点分配算法—基于K-means聚类距离最小的R树结点分配算法。研究结果表明,新的分配算法比原始的算法,产生的虚结点的最小约束矩形具有更少的空白区域,较明显地提高了空间查询的效率。 R-Tree index is efficient spatial index to spatial database.This paper proposed a new method of R-Tree assignment ―R-Tree node assignment algorithm based on minimum K-means clustering distance to improve shortage of R-Tree assignment.The results of the experiment show that the new method can reduce data blank region for MBR of virtual node,and improves the search efficiency obviously than original algorithm.
出处 《测绘科学》 CSCD 北大核心 2006年第5期117-118,116,共3页 Science of Surveying and Mapping
基金 国家"十五"重大科技专项课题"中国电子政务空间辅助决策示范工程"(2002BA105A-01)
关键词 空间索引 空间查询 R树 最小K-Means距离 spatial index spatial search R-Tree minimum K-means clustering distance
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参考文献10

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共引文献160

同被引文献23

  • 1张亚军,华一新.一种支持多版本空间数据的索引方法[J].测绘通报,2012(S1):582-584. 被引量:1
  • 2张明波,陆锋,申排伟,程昌秀.R树家族的演变和发展[J].计算机学报,2005,28(3):289-300. 被引量:95
  • 3黄继先,鲍光淑,夏斌.基于混合聚类算法的动态R-树[J].中南大学学报(自然科学版),2006,37(2):366-370. 被引量:16
  • 4刘兵,严和平,段江娇,汪卫,施伯乐.度量空间一种自底向上索引树构造算法[J].计算机研究与发展,2006,43(9):1651-1657. 被引量:3
  • 5黄继先,鲍光淑,夏斌.基于R-树空间数据库查询技术研究[D].长沙:中南大学,2006.
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  • 8胡伟.改进的层次K均值聚类算法[J/OL].计算机工程与应用,[2011-10-24].http://www.cnki.net/kcms/detail/11.2127.TP.20111024.1013.064.html.
  • 9王会青,陈俊杰,郭凯.启发式初始化独立的k-均值算法研究[J/OL].计算机工程与应用,[2011-07-20].http://www.cnki.net/kcms/detail/11.2127.TP.20110720.1517.077.html.
  • 10黄哲学 徐军 景丽萍等.K-均值算法家族和子空间聚类.计算机研究与发展,2005,42:55-60.

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