Full title:\r\n\r\n \r\n\r\nTomai E. and Kavouras M., “Context in Geographic Knowledge Representation”, 2nd International Conference and Exhibition on Geographic information, Estroril, Portugal, May 30 – June 2, 2005.\r\n\r\n \r\n\r\nAbstract:\r\n\r\n \r\n\r\nContext is a key issue in Knowledge Representation, nevertheless, a formal account of what context is has not yet been agreed on. In the current research we attempt to formalize context as a set of dimensions and their value sets. We focus on the geo-spatial domain and we are particularly interested in incorporating this formalization of context into a geographic ontology. Therefore, we propose that context of concepts or categories in an ontology or a categorization schema, should come as a combination of dimensions that imposes limitations under which ontological information is given specific meaning.