| 1. | An improved method of building up grid spatial index construction
一种改进的网格索引生成方法 |
| 2. | Access control model of 2 - d spatial region based on spatial index
基于空间索引的二维空间区域访问控制模型 |
| 3. | Spatial index is a indispensable part of spatial database , and can dramatically improve efficiency when doing a spatial query
空间索引作为空间数据库中的重要组成部分，可以加快对空间对象的检索。 |
| 4. | Aim at the characters of spatial data access control , the concept of spatial region access control based on spatial index was proposed
摘要针对空间数据的访问控制的特点，提出了基于空间索引的区域访问控制概念。 |
| 5. | Presents a spatial index method based on rude grid and object bound and proves its validity and practicability on constructing spatial index . 3
创造性地提出了基于粗分格网的对象范围索引方法，并论证了该方法在建立空间索引方面的有效性和实用性。 |
| 6. | We summarize that spatial index system should provides three kinds of spatial query , they are , spatial range query , nearest neighbor query , spatial join query
本文总结出空间索引系统应提供的三类空间查询：空间范围查询、最近邻居查询、空间连接查询。 |
| 7. | Each dimention of spatial data is not in precedence to other , so special index is needed to support spatial data , which leads to the introduction of spatial index
空间数据的多维特性在任何方向上并不存在优先级问题，因此需要研究特殊的另类“索引”以适应多维特性的空间数据。 |
| 8. | Spatial index utilizes some kind of spatial relationship to organize data entries , with each key value seen as a point or region in a multi - dimensional space
空间索引由此应运而生，空间索引主要依靠空间对象之间的邻接性对数据进行组织，它的索引项通常是多维空间下的点或区域。 |
| 9. | On the aspect of data index , the essential of spatial index was advanced based on database , and a spatial index method called the spatial grid index method was put forward based on two phases database query
在数据索引方面，提出了基于数据库的空间索引的实质，对基于数据库的空间索引作了一定的研究，提出了基于数据库的sql两阶段查询的空间网格索引机制。 |
| 10. | As the display of electronic multi - media military geographic documentations is based on multiple topographic maps , increasing the display of electronic maps with macro vector data is the chief problem to solve . the paper introduces the spatial index technique at detail for it
多媒体电子兵要地志以多幅地图为显示平台，海量数据电子地图的快速显示是面临的首要问题，作者在文中详细介绍了空间索引技术。 |
