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3 November 2008Semantic expressions of geographical ontology in the city reference frame model
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.
Hengcai Zhang,Jing Zhang, andWenqian 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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Hengcai Zhang, Jing Zhang, 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