| 1. | Finally , an interface of the visual editor for stadbs is presented
最后给出了stadbs系统中时空数据库可视化编辑器的操作界面。 |
| 2. | The spatio - temporal analysis operations are important functions of spatio - temporal database
时空分析操作是时空数据库的重要功能。 |
| 3. | The implementation of spatio - temporal database system is based on spatio - temporal data modeling
时空数据建模是实现时空数据库系统的基础。 |
| 4. | The spatio - temporal analysis operations are one of the most important functions in spatio - temporal databases
时空分析操作是时空数据库的重要功能。 |
| 5. | Spatio - temporal data model is the kernel of spatio - temporal database , namely moving object database , and it ' s the basis of the other components such as spatio - temporal query
时空数据模型是时空数据库(也称移动对象数据库)的核心，是时空查询等其它数据库组成部分的基础。 |
| 6. | Using esri arcgis 8 . 3 and microsoft access , the physical database is implemented and all the socio - economic data of henan province ( 2000 - 2005 ) are transformed into the database
然后,使用esriarcgis8 . 3软件和microsoftaccess数据库,实现了基于个人geodatabase的统计时空数据库。 |
| 7. | 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。 |
| 8. | This paper discusses the development of spatio - temporal data modeling in the spatio - temporal database and designes the two - level avl - tree spatio - temporal data model based on realms for spatio - temporal database system - stadbsii
本文讨论了时空数据库中时空建模技术的发展过程，同时为时空分析数据库系统stadbsii设计了基于realms的二级平衡二叉树模型。 |
| 9. | 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。 |
| 10. | The key definitions of spatio - temporal data modeling are summarized and the requirements of spatio - temporal database community , including temporal semantics , spatial semantics , spatio - temporal semantics and query capabilities are specified
摘要阐述了时空数据建模的主要定义，分析了时空数据库领域的建模需求，包括时态语义、空间语义、时空语义和查询能力。 |
