Published: Jun 1, 2009 Author(s): Dube, Matthew P., Egenhofer, Max J. Abstract: Within the Geospatial Semantic Web, selecting a different ontology for a spatial data set will enable that dataís analysis in a different context. Analyses of multiple data sets, each based on a different ontology, require appropriate bridges across the ontologies. This paper focuses on establishing such read more Establishing Similarity Across Multi-Granular Topological-Relation Ontologies