A Geographic Ontology Fusion Method Based on Granular Theory

A geographic ontology fusion method based on granular theory is presented.First, Formal concept analysis(FCA) is used to formalize different geographic domain ontologies.Then granular computing is introduced to geo-ontologies fusion to implement concept lattice reduction in different granulations.Finally,experiments are conducted by combing fundamental geographic information data and spatial data in the hydraulic engineering domain.The results show that Geo-ontologies fusion is a progressive process,and the proposed method is valid in multi-source Geo-ontologies fusion.As well as merits and limitations are discussed.