Research on Representation of Geographic Feature Based on Geo-Ontology

In future, GIS will develop in the direction of popular application. Geography information sharing has become a stringent problem needed to resolve. Because people´s cognition of real geographic world is different from each other, semantic discrepancy comes into being. As a result, Realization of geography information sharing has firstly to realize GIS´s semantic sharing. Geo-ontology provides generally accepted concepts in geographic information domain and explicit formalized definitions thereof, so as to resolve the problem different geographic cognition gives rise to and inter-translation problem of description logic thereof. Geo-ontology can be applied to integration and sharing of geographic information. Start with the process of abstraction and generalization from real geographic world to computer world, this paper analyzes the source of semantic heterogeneity, and introduces geographic feature and its representing generalized geographic objects. Then this paper analyzes relationships between geo-ontology and geographic feature in detail, finally lay emphasis upon research on how to use geo-ontology to represent geographic features.