Semantic expressions of geographical ontology in the city reference frame model

Hengcai Zhang; Jing Zhang; Wenqian Chen

doi:10.1117/12.812544

3 November 2008 Semantic expressions of geographical ontology in the city reference frame model

Hengcai Zhang, Jing Zhang, Wenqian Chen

Proceedings Volume 7143, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments; 71430L (2008) https://doi.org/10.1117/12.812544
Event: Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 2008, Guangzhou, China

Abstract

Spatial relations are the foundation of spatial analysis which has important roles in GIS. A reasonable coordinate frame model should be able to describe the orientation relations of two geographic objects clearly, which is part of spatial relations. The reference frame model, which is built according to the spatial pattern of city layout and reflects human's geographic cognition, is helpful in qualitative spatial reasoning, geographic semantic expression, and inquiring based on the natural languages. Geographical ontology is about the knowledge and concepts which have in common in the domain of geography. A semantic model based on ontology can describe the connection of two concepts and provide a new way to construct concept models. This paper mainly studied the meaning of geographic concepts based on 12-direction city coordinate frame model of Beijing. The way of exchanging geographic knowledge and geographic semantic expressions are also important parts of this paper. Based on the reference frame model, the paper built a knowledge database of geographic ontology. The spatial and non-spatial knowledge could be expressed and inferred by the database. This research makes full preparation for establishing the LBS service structure supporting natural languages.

Citation Download Citation

Hengcai Zhang, Jing Zhang, and Wenqian Chen "Semantic expressions of geographical ontology in the city reference frame model", Proc. SPIE 7143, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 71430L (3 November 2008); https://doi.org/10.1117/12.812544

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