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| IMPWPT运动目标时空索引的设计与实现 | |
| 引用本文： | 单国慧,邓伟群,华一新,庞园园.IMPWPT运动目标时空索引的设计与实现[J].测绘科学,2011,36(3):219-221. |
| 作者姓名： | 单国慧 邓伟群 华一新 庞园园 |
| 作者单位： | 1. 95868部队,北京,100097 2. 信息工程大学,郑州,450052 3. 61512部队,北京,100088 |
| 摘 要： | 本文借鉴IMPACT的思想,利用索引工具GiST和SP-GiST建立内存和硬盘双索引.其中内存索引用于索引目标当前和将来的信息,硬盘索引用于索引目标的历史信息.内存被分为两部分,一部分用来建立内存索引,其余部分用来作为基于硬盘索引中频繁访问部分的高速缓冲区.历史索引采用XBR-tree结构,当前和将来索引采用B<'du... |
| 关 键 词： | 轨迹 运动目标 时空数据模型 时空查询语言 索引 时空数据库 数据插件 |
Design and implement of IMPWPT moving object spatio-temporal index |
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| SHAN Guo-hui,DENG Wei-qun,HUA Yi-xin,PANG Yuan-yuan.Design and implement of IMPWPT moving object spatio-temporal index[J].Science of Surveying and Mapping,2011,36(3):219-221. | |
| Authors: | SHAN Guo-hui DENG Wei-qun HUA Yi-xin PANG Yuan-yuan |
| Institution: | (① 95868 Troops,Beijing 100097,China;②University of Information and Engineer,Zhengzhou 450052,China;③61512 Troops,Beijing 100088,China) |
| Abstract: | 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 futu... |
| Keywords: | trajectory moving object spatio-temporal data model STQL index spatio-temporal database data cartridge |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |