| 基于动态多级索引与双向链技术的时态数据模型 |
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| 引用本文： | 黄九松,李大军,刘学军,谢刚生.基于动态多级索引与双向链技术的时态数据模型[J].科技信息,2006(Z4). |
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| 作者姓名： | 黄九松 李大军 刘学军 谢刚生 |
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| 作者单位： | 东华理工学院测量系，东华理工学院测量系，南京师范大学地理科学学院，华南农业大学资源环境学院 江西 抚州 344000，江西 抚州 344000，江苏 南京 210097，广东 广州 510642 |
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| 摘 要： | 如何使用时间维来描述空间地理对象的时态性并将其引入到空间数据库中,是目前GIS研究领域的一个热点。本文通过对目前已经研究提出的时间新维型时空数据模型的分析比较,对基态的选择、空间数据采样时间间隔的确定以及数据处理的效率方面进行了进一步的探讨,提出了一种基于多级动态索引和双向链技术的一种改进模型,并在程序中予以了实现,证明了其可行性。
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| 关 键 词： | 动态多级索引 区段索引 双向链指针 版本 |
A Temporal Data-Model based on Dynamic- Multilevel Index and Two-way Chain Technology |
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| Huang Jiu Song Li Da Jun Xie Gang Sheng.A Temporal Data-Model based on Dynamic- Multilevel Index and Two-way Chain Technology[J].Science,2006(Z4). |
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| Authors: | Huang Jiu Song Li Da Jun Xie Gang Sheng |
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| Institution: | Survey Department Of East China Institute Of Technology FuZhou JiangXi 344000;School of Geography science of NanJing Normal University JiangShu NanJing 210097;College Of Resources And Environment Of South China Agricultral University GuangZhou Guang Dong 510642 |
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| Abstract: | How to describe the Tenmporal attributes of spacial geographical objects by using time-dimension and bring it into the spacial database is one of the focuses in the CIS research field at present.This article puts forward an improved model including how to collect the data.the time of collecting data and the efficiency of data processing by analysis and comparison among the existed models.It is based on Dynamic- Multilevel Index and Two-way Chain Technology.In the article,author has vertificated the rationality and practicability of the theorise. |
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| Keywords: | Dynamic- Multilevel Index Sector Index Two-way Chain Indicator Version |
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