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The development and application of GIS ultimately creates the demand for spatial information security, and access control is our primary concern. Spatial information is mostly stored and managed by da...
The paper firstly introduces grid technology and spatial database. Secondly it has designed the spatial database model in grid environment, which contains Application layer, Collective Layer and Fabri...
Data storage and data exchange is a key issue of interdisciplinary research projects which focus on environmental field studies and regional modelling. The overall success of such projects depends on ...
In order to update the cadastral database and maintain it's topological consistency automatically (or semi-automatically) during the updating process, an event-driven incremental updating method of ...
The paper summarises the importance of spatial data quality, especially as data is used more and more in automated processes and decision-making, and as data is integrated or ‘joined-up’ from diverse ...
Following SPOT5 launch, Spot Image and French National Geographic Institute (IGN) have decided to design a worldwide accurate database called Reference3D?using data from the High Resolution Stereosco...
The technologies of organization and management of the massive volume spatial data are playing an important role in GIS. Especially,with the increasing of the volume of spatial data and the extending ...
Digital hydrogeological map spatial data base is the most important components of “digital China ”. According to uniform standard,primary hydrogeological materials were converted into numeric format t...
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...
Technological development in the field of map and spatial database generalization is very fast, following the trend from manual cartography to computer-based cartography. Map generalization is an int...
With the development of the Database technology and Geographic Information System technology, the spatial data managing mode go through three stages, entirely File system management, File system and ...
Nowadays, more and more spatial databases are used in various fields, so the demands for keeping spatial database “fresh” are growing rapidly. Generally, the end-users get the basic spatial data from ...
CONCEPT AND REALIZATION OF FEDERATED SPATIAL DATABASE.
The joint German-Chinese research project SILUP (Sustainable Integrated Land Use Planning) aims in developing and implementing a strategy for sustainable land use planning in a rapidly developing stud...
This paper presents a fully automated system for area detection based on satellite images and topographic features from a database. The surfaces issued from the database are refined using active conto...

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