搜索结果: 1-3 共查到“空间大地测量学 querying”相关记录3条 . 查询时间(0.101 秒)
STORING AND QUERYING SPATIALLY VARYING DATA QUALITY INFORMATION USING AN INTEGRATED SPATIAL RDBMS
quality spatial variation metadata sub-feature variation spatial database
2015/9/28
Current representations of spatial data quality (SDQ) do not adequately represent the spatial variation of SDQ. For example, a user who wants to know the positional accuracy of a feature usually has t...
QUERYING SPATIAL-TEMPORAL DATA IN LOCATION-BASED SERVICES
mobile objects Location-based Services (LBS) location server MOD spatial-temporal data key technology
2015/8/10
With the growing advances of positioning technologies like GPS, tracking the location of mobile objects to push Location-based Services (LBS) has been applicable. Generally, the location server is con...
A DYNAMIC INDEX STRUCTURE FOR SPATIAL DATABASE QUERYING BASED ON R-TREES
Spatial Database Querying R-Tree Dynamic Index Structure
2015/8/10
In recent years, spatial database has become an important area of people's interest and research. A fundamental issue in this area is how to store and operate spatial data efficiently. This paper desc...