| 空间数据库R-tree连接方法研究 |
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| 引用本文： | 回敬齐,李伯权,陈芳芳. 空间数据库R-tree连接方法研究[J]. 齐齐哈尔轻工业学院学报, 2010, 0(4): 27-30 |
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| 作者姓名： | 回敬齐 李伯权 陈芳芳 |
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| 作者单位： | 齐齐哈尔医学院附属第三医院,黑龙江齐齐哈尔161000 |
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| 基金项目： | 齐齐哈尔市应用技术项目基金（407275） |
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| 摘 要： | 空间连接是空间数据库中最重要最耗时的操作,国内外学者的研究多是基于索引结构空间连接的一次过滤方法,其中基于R-tree的空间连接算法被认为是一种高效的处理机制。本文提出了基于R-tree空间连接的二次过滤方法,缩小了过滤阶段的候选集大小,可有效提高查询效率。
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| 关 键 词： | R-tree 空间存取方法 空间连接 二次过滤 |
The research of spatial join using R-tree |
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| HUI Jing-qi,LI Bo-quan,CHEN Fang-fang. The research of spatial join using R-tree[J]. , 2010, 0(4): 27-30 |
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| Authors: | HUI Jing-qi LI Bo-quan CHEN Fang-fang |
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| Affiliation: | (Third Affiliated Hospital of Qiqihar Medical College,Heilongjiang Qiqihar 161000,China) |
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| Abstract: | Spatial join is the most important and time-consumed in spatial query of spatial database.As we know,many scholars at home and abroad have done a lot of research work on one-step filter method using index.Among them,R-tree based spatial join is always considered as a kind of high efficient processing mechanism.This paper proposed second filtration method based on R-tree for further reducing the candidate sets of filtration phase.The experimental results showed the effectiveness of method. |
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| Keywords: | R-tree spatial access methods spatial join second filtration |
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