CR*-tree: An improved R-tree using cost model

被引:0
|
作者
Chen, HB
Wang, ZQ [1 ]
机构
[1] E China Univ Sci & Technol, Dept Comp Sci & Engn, Shanghai 200237, Peoples R China
[2] Zhejiang Univ, Dept Comp Sci, Hangzhou 310027, Peoples R China
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中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
We present a cost model for predicting the performance of R-tree and its variants. Optimization base on the cost model can be apply in R-tree construction. we construct a new R-tree variant called CR*-tree using this optimization technique. Experiments have been carried out results show that relative error of the cost model is around 12.6%, and the performance for querying CR*-tree has been improved 4.25% by contrast with R*-tree's.
引用
收藏
页码:758 / 764
页数:7
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