321 search results - page 17 / 65 » A Topological Data Model for Spatial Databases |
DGO
2003
13 years 9 months ago
2003
The paper introduces a query tool which allows users (either database experts or non-specialist users) to visually formulate and execute spatial queries directed to large federal ...
VLDB
1994
ACM
13 years 11 months ago
1994
ACM
Global clustering has rarely been investigated in the area of spatial database systems although dramatic performance improvements can be achieved by using suitable techniques. In ...
ICPR
2004
IEEE
14 years 8 months ago
2004
IEEE
In this paper, we present a novel method for efficient 3D model comparison. The method matches highly deformed models by comparing topological and geometric features. First, we pr...
NLUCS
2008
13 years 9 months ago
2008
Abstract. To develop a computational model of understanding spatial expressions, various factors should be taken into account. We have been exploring the relations between the good...
W2GIS
2004
Springer
14 years 1 months ago
2004
Springer
Mobile transactions for updating spatial data are long-lived transactions that update local copies of the mobile platforms on disconnection. Since a mobile transaction is physicall...