A translation approach to portable ontology specifications
Knowledge Acquisition - Special issue: Current issues in knowledge modeling
Knowledge compilation and theory approximation
Journal of the ACM (JACM)
Distributed and Parallel Databases
Resolving semantic heterogeneity in schema integration
Proceedings of the international conference on Formal Ontology in Information Systems - Volume 2001
Ontologies for geographic information processing
Computers & Geosciences - Intelligent methods for processing geodata
Determining Semantic Similarity among Entity Classes from Different Ontologies
IEEE Transactions on Knowledge and Data Engineering
Approximating Terminological Queries
FQAS '02 Proceedings of the 5th International Conference on Flexible Query Answering Systems
Integrating Spatio-Thematic Information
GIScience '02 Proceedings of the Second International Conference on Geographic Information Science
Global Schema Generation Using Formal Ontologies
ER '02 Proceedings of the 21st International Conference on Conceptual Modeling
Knowledge Based Integration of Heterogeneous Databases
Proceedings of the IFIP WG 2.6 Database Semantics Conference on Interoperable Database Systems (DS-5)
Ontobroker: Ontology Based Access to Distributed and Semi-Structured Information
DS-8 Proceedings of the IFIP TC2/WG2.6 Eighth Working Conference on Database Semantics- Semantic Issues in Multimedia Systems
Reasoning in expressive description logics
Handbook of automated reasoning
Visualization of Semantic Metadata and Ontologies
IV '03 Proceedings of the Seventh International Conference on Information Visualization
IEEE Transactions on Knowledge and Data Engineering
A Semantic Web Primer
Proceedings of the 13th international World Wide Web conference on Alternate track papers & posters
Querying heterogeneous land use data: problems and potential
dg.o '02 Proceedings of the 2002 annual national conference on Digital government research
Comparing categories among geographic ontologies
Computers & Geosciences
Foundations for an Ontology of Environment and Habitat
Proceedings of the 2010 conference on Formal Ontology in Information Systems: Proceedings of the Sixth International Conference (FOIS 2010)
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There is a growing demand for digital databases of topographic and thematic information for a multitude of applications in environmental management, and also in data integration and efficient updating of other spatially oriented data. These thematic data sets are highly heterogeneous in syntax, structure and semantics as they are produced and provided by a variety of agencies having different definitions, standards and applications of the data. In this paper, we focus on the semantic heterogeneity in thematic information sources, as it has been widely recognized that the semantic conflicts are responsible for the most serious data heterogeneity problems hindering the efficient interoperability between heterogeneous information sources. In particular, we focus on the semantic heterogeneities present in the land cover classification schemes corresponding to the global land cover characterization data. We propose a framework (semantics enabled thematic data Integration (SETI)) that describes in depth the methodology involved in the reconciliation of such semantic conflicts by adopting the emerging semantic web technologies. Ontologies were developed for the classification schemes and a shared-ontology approach for integrating the application level ontologies as described. We employ description logics (DL)-based reasoning on the terminological knowledge base developed for the land cover characterization which enables querying and retrieval that goes beyond keyword-based searches.