In this article we have shown several important techniques to improve performance of spatial databases.
在本文中，我们展示了一些提升空间数据库性能的重要技巧。
Spatial database index is the vital technique for improving the storage efficiency of spatial databases and the spatial retrieval performance.
空间数据库的索引是提高空间数据库存储效率、空间检索性能的关键技术。
The construction of the geological map spatial databases has great significance for the fast renewing of basic geological maps, sharing of information resources and study of basic geoscience.
地质图空间数据库的建立对于基础地质图件的快速更新、信息资源共享以及基础地质科学研究具有重要意义。
It is applicable to the renewal of other geographic spatial databases of corresponding scale.
该方法也可应用于其他相应比例尺地理空间数据库的更新。
Spatial association rule discovery in spatial databases is a very important data mining task.
空间关联规则挖掘是在空间数据库中进行知识发现的一类重要问题。
Finally, it is pointed out that the high dimensional index is a hot research field in spatial databases.
最后指出在空间数据库中的高维索引的研究是目前前沿研究的热点。
For data sets indexed by R-trees in spatial databases, three algorithms are presented for answering this kind of query.
在空间数据库中，对采用r树类型索引存储的数据集给出了三个查询处理算法。
Spatial index is the vital technique for improving storage efficiency of spatial databases and the spatial retrieve performance.
空间数据库的索引是提高空间数据库存储效率和空间检索性能的关键技术。
The spatial index is the key technique for improving the storage efficiency of spatial databases and the spatial retrieve performance.
空间数据库的索引是提高空间数据库存储效率、空间检索性能的关键技术。
Faced with the large mounts of increasing spatial data, a terminal user has more difficulty in understanding them without the helpful knowledge from spatial databases.
面对持续增长的海量空间数据，用户难以在没有知识辅助的情况下完全理解数据。
The spatial dependence in data mining is normally represented by spatial association rules, which provide the critical information in assessing spatial correlations in large spatial databases.
空间数据挖掘中所依赖的空间相关性是由空间关联规则描述的。
Spatial databases are being applied widely in many applications such as GIS, CAD, Robot, Computation, Geometry, Computer Vision, Physic Image and Multimedia System etc.
空间数据库已广泛地应用于GIS,CAD、机器人、计算几何、计算机视觉、医学图像和多媒体系统等领域。
Spatial databases are being applied widely in many applications such as GIS, CAD, Robot, Computation, Geometry, Computer Vision, Physic Image and Multimedia System etc.
空间数据库已广泛地应用于GIS,CAD、机器人、计算几何、计算机视觉、医学图像和多媒体系统等领域。
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