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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...
Now more and more demands to spatio-temporal data and the spatio-temporal data model is key issue of describing and managing the spatio-temporal data. The spatio-temporal data model integrates time and space so it can truly describe the reality. But the objective world still has another characteristic--uncertainty. Only including uncertainty the spatio-temporal data model can completely and truly...
Now more and more application demand to spatio-temporal database is proposed and the spatio-temporal data model is the fundamental basic to spatial-temporal database. But till today the study on spatio-temporal data model still more concerned with the theory research. The article proposes a new model-the change-of-feature based spatio-temporal object relational data model by researching and analyzing...
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