Distributed and Parallel Databases
Maintaining knowledge about temporal intervals
Communications of the ACM
Qualitative Spatial Reasoning: A Semi-quantitative Approach Using Fuzzy Logic
SSD '89 Proceedings of the First Symposium on Design and Implementation of Large Spatial Databases
Towards Integration of Geographic Information Systems
Electronic Notes in Theoretical Computer Science (ENTCS)
AAAI'05 Proceedings of the 20th national conference on Artificial intelligence - Volume 4
Ontology-based agri-environmental planning for whole farm plans
ER'10 Proceedings of the 2010 international conference on Advances in conceptual modeling: applications and challenges
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Information systems often require combining datasets available in different formats, and geographical information systems are no exception. While semantic technologies have been used before to enable interoperability between relational databases, little research has yet been done for the special case of geographical information systems, despite their applications in active areas of research such as location-based services. In this paper we present an OWL-based system for seamless conversion between geographical file formats. While implementing this system we reached the complexity limits of current description logics reasoners and had to design custom algorithms to compute the logical inferences we needed. This process suggested interesting approaches to enable scalable reasoning on the semantic web.