时空索引的英文
spaciotemporal key
例句与用法
- A spatio - temporal indexing method for gis
的时空索引方法 - Spatio - temporal databases manage spatial objects that change positions and / or extents over time , spatio - temporal index method is one of the key technologies in spatio - temporal database management system
时空数据库是存储、管理随时间变化，其空间位置和/或范围也发生变化的时空对象的数据库系统，时空索引技术是时空数据库管理系统的关键技术之一。 - In order to improve the efficiency of spatio - temporal data access , spatio - temporal index mechanisms should considers both characteristics of spatial and temporal and combines both access methods of spatial and temporal
时空索引技术是空间索引技术和时间索引技术的结合，它必须兼顾了时空对象的空间特性和时间特性，才能有效地提高时空数据库的存取效率。 - In the first place , the paper briefly discusses issues related to the main index mechanisms in spatial and temporal , studies the access methods of spatio - temporal databases which has been presented . furthermore , the paper explains the storage mechanisms in stadbs ( spatio - temporal analysis database system ) and presents a hr - tree index structure based on main memory to realize the index mechanism of stadbs , it ' s main technologies were discussed in detail . lastly , a visual demo of hr - tree based on main memory was introduced in this paper
本文在分析讨论了主要的空间和时间索引技术的基础上，研究、分析了时空数据的存取方法，对已提出的时空索引技术进行了分类、比较；根据时空分析数据库stadbs存储机制的特点，采用基于主存的hr -树作为stadbs时空数据的索引结构，设计与实现了stadbs的时空存取方法，论文对stadbs时空索引机制的设计与实现作了较详细的介绍，同时阐述了基于主存的hr -树可视化演示程序的主要实现方法。
