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《Science of Surveying and Mapping》 2011-03
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Design and implement of IMPWPT moving object spatio-temporal index

SHAN Guo-hui①,DENG Wei-qun①,HUA Yi-xin②,PANG Yuan-yuan(① 95868 Troops,Beijing 100097,China;②University of Information and Engineer,Zhengzhou 450052,China;③61512 Troops,Beijing 100088,China)  
Using the IMPACT idea,the paper put forward to constructing the dual-index of memory and hard disk with index tools GiST and SP-GiST.The memory index was used to index objects' current and future information,and the hard disk one was used to index objects' history information.The memory was divided into two parts,one is used to construct memory index,the other is used as high-speed buffer accessed frequently based on the hard disk index.The history index applied XB-tree construction,and the current and future index applied-tree one.
【CateGory Index】: TP391.3
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