RkNN of a Group of Object are Queried in the Application of Spatial Database

LIU Jin-ling; YANG Feng-xia; LIU Guo-xiang

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RkNN of a Group of Object are Queried in the Application of Spatial Database

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- RkNN of a Group of Object are Queried in the Application of Spatial Database
- Vol. 29, Issue 1, Pages: 18-22(2012)
- 作者机构：
  
  1. 1 淮阴工学院机构计算机工程学院,江苏,淮安,223003
  2. 2 沧州师范学院机构计算机系,河北,沧州,061001
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
移动端阅览
刘金岭, 杨凤霞, 刘国香. 多对象RkNN查询在空间数据库中的应用[J]. 微电子学与计算机, 2012, 29(1): 18-22.

LIU Jin-ling, YANG Feng-xia, LIU Guo-xiang. RkNN of a Group of Object are Queried in the Application of Spatial Database[J]. 2012, 29(1): 18-22.
刘金岭, 杨凤霞, 刘国香. 多对象RkNN查询在空间数据库中的应用[J]. 微电子学与计算机, 2012, 29(1): 18-22. DOI：

LIU Jin-ling, YANG Feng-xia, LIU Guo-xiang. RkNN of a Group of Object are Queried in the Application of Spatial Database[J]. 2012, 29(1): 18-22. DOI：

摘要

针对空间数据库的RkNN查询概念和多个对象的查询特点设计了相关算法.对于一组查询

先是生成查询的最小圆域DOM (

然后求出RkNN查询的初始化区域

最后通过消除查询错误数据点得到RkNN查询结果.通过对真实数据集进行的大量实验表明

文中提出的算法效率明显优于目前最好的反RkNN算法.

Abstract

According to the concept of RkNN in the spatial database and the features of RkNN of a Group of object are queried and design the corresponding algorithm.Given a group of nearby space objects as the query input

the author compute the smallest circle enclosing the the query objects

secondly compute the regional of initialization are queried.In the end the author eliminate wrong data to get the querys final RkNN query results.A large of experiments according to real data sets

show that the efficiency of the proposed method for RkNN outperform the state-of-the-art algorithm.

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