计算机应用 ›› 2013, Vol. 33 ›› Issue (10): 2974-2976.

• 典型应用 • 上一篇    下一篇

基于层次Voronoi图的点群相似度算法

康顺,李佳田   

  1. 昆明理工大学 国土资源工程学院,昆明 650093
  • 收稿日期:2013-04-04 修回日期:2013-05-08 出版日期:2013-10-01 发布日期:2013-11-01
  • 通讯作者: 康顺
  • 作者简介: 
    康顺(1987-),男,辽宁营口人,硕士研究生,主要研究方向:空间数据可视化表达的图形方法;李佳田(1975-),男,黑龙江佳木斯人,副教授,博士,主要研究方向:GIS不规则空间剖分模型与方法。
  • 基金资助:
    国家自然科学基金资助项目;云南省自然科学基金资助项目;云南省教育厅重点基金资助项目

Algorithm of point cluster similarity based on hierarchical Voronoi diagrams

KANG Shun,LI Jiatian   

  1. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming Yunnan 650093, China
  • Received:2013-04-04 Revised:2013-05-08 Online:2013-11-01 Published:2013-10-01
  • Contact: KANG Shun

摘要: 通过对空间点群的自适应聚类方法构建层次Voronoi图,以此层次Voronoi图为切入点,计算点群的拓扑、密度和范围的相似度,结合有关标准差的数理统计方法,计算角度、距离的相似度。在各维度的相似度基础上,使用其几何平均值作为点群整体相似度的度量标准,优化点群相似度的计算方法,并通过实验证明算法的可行性

关键词: 点群, 聚类, 层次Voronoi图, 相似度

Abstract: The hierarchical Voronoi diagrams were built through an adaptive clustering method of spatial point clusters. Based on the hierarchical Voronoi diagrams, the topology, density and scope similarities were calculated. The radian and distance similarity were calculated in combination of the standard deviation in mathematical statistics. On the base of every dimensional similarity, the principle of point cluster similarity was decided by the geometrical mean of these parameters. This optimizes the method of the point cluster similarity and the experiment proves its feasibility.

Key words: point cluster, clustering, hierarchical Voronoi diagram, similarity

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