Research on data consistency in spatial database system

Spatial Data Management In Database Systems: Research Directions

Realms: A foundation for spatial data types in database systems p. 14 A canonical model for a class of areal spatial objects p. 36 Strong integration of spatial domains and operators in a relational database system p. 53 The transformation technique for spatial objects revisited p. 73 A paging scheme for pointer-based quadtrees p. 89 A hierarchical spatial index for cell complexes p. 105 On opt...

Consistency of Spatial Database Query Results

Numerous applications involve the use of a Geographical Information System (GIS). A working session consists of several spatial database orders. The scope of this paper is to provide a link between alphanumeric data and spatial representation of objects stored in a GIS database. The notions of Granule, Topology and Set_relationship are defined to guarantee a semantics to alphanumeric data parts...

Research on Spatial Data Mining in E-Government Information System

on the status of mixed methods research in applied linguistics

چکیده ندارد.

Research on Spatial Database Model in Grid Environment

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 Fabric Layer; and then it has researched the working flow. At last, the simulation experiment of the spatial database model in grid environment has been carried out compared with traditional spatial dat...