Abstract. We present a methodology of how to use a top-level ontology to create a domain ontology from existing scientific texts by (1) identifying informal definitions of domain-s...
The essential elements of any navigation system are a shortest-path algorithm and accurate map data. The contribution of this work is two-fold. First, the HBA algorithm, an effici...
: Spatial relations are becoming an important aspect of spatial access methods because of the increasing interest on qualitative spatial information processing. In this paper we sh...
This paper describes the implementation of a triangulation based collapse algorithm in the general-purpose object oriented DBMS Magnum. The contribution of the paper is twofold. F...
Annita N. Wilschut, Roelof van Zwol, Jan Flokstra,...
This paper introduces an approach for closer integration of selforganizing maps into the visualization of spatio-temporal phenomena in GIS. It is proposed to provide a more explic...