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Author:
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Issue:
The reverse nearest neighbor query of the moving points
Author(s):
ZHU Jing
Pages:
47
-
50
Year:
2009
Issue:
6
Journal:
Journal of Qiqihar University(Natural Science Edition)
Keyword:
反向最近邻查询
;
Voronoi图
;
三角剖分
;
移动点
;
Abstract:
反向最近邻(RNN)查询是空间数据库查询的一个重要的问题.随着无线通讯的发展,时空数据库中反向最近邻查询问题越来越受到关注.本文基于Voronoi图的定义和性质,采用一种不同于Delaunay三角剖分的另外一种三角剖分进行研究,其优势在于对于某个特定点,包含它的三角形的数量较少,查询效率较高.
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