spatial join meaning in Chinese
空间连接
Examples
- The classical r - tree as index is adopted in spatial joining . r - tree is performed by bulk loading
在空间连接处理的算法上采用了经典的r树作为索引，采用批生成算法生成r树。 - 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。 - This thesis discusses spatial data index first , shows the history of spatial index structure , introduces the current domestic and foreign main index structure in gis ' s spatial joining , and then makes use of character to express spatial object
本论文首先对空间数据库的索引进行探讨，并给出了空间索引结构的发展演化图，然后介绍了目前国内外gis的空间连接过程中的主流索引结构，最后引入了字符来表达空间对象。 - Third , the dissertation specifies the spatial join query processing based on service oriented architecture . two strategies are proposed . the first one , called the ssji strategy , can efficiently reduce the overall costs by precomputing and materializing the spatial semi join results
最后,论文研究了空间数据服务发现问题,基于信息检索理论,提出了基于集合模型和向量模型的服务发现方法,提高了服务发现的查全率和查准率。 - In addition , we summarize some spatial join algorithms based on r - tree index and their cost estimation models . we also give out a query optimization algorithm framework based on dynamic programming algorithm , and integrated basic r - tree index method and query optimization mechanism into sadbs ii
另外，本文还总结了几种基于r树索引的空间连接算法及其代价评估模型，利用动态编程算法给出了查询优化的算法框架，并在sadbs中集成了基本的r树索引方法和查询优化机制。