Ontology Merging and Data Schema Integration: An Approach to Identify Semantic Similarity and Resolve Schematic Heterogeneity in Interoperable GIS Application. - Nanna Suryana; Shahrin Sahib; Ridlwan Habibi; Norayu Abdul Ghani; Zahriah Othman; Ahmad Tajuddin Samsudin (ISDA, 2009)