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构建时空本体的出发点是它能显式地表达地理时空数据所蕴含的学科感知知识,能有效实现不同学科间的信息共享。该文从本体论的角度,对动态变化的地理现象和事物概化,并归纳为时空对象本体、时空事件本体和时空过程本体;从数据库的实现角度,对三类本体进行增强型语义描述、概念化模型图论、元组表达和语义增强型查询。该模型注重描述和表达地理现象和事物的动态变化,也注重描述变化成因。最后,应用该模型研究海冰变化,以验证模型的实用性。 更多还原

【Abstract】 The primary purpose of building the spatio-temporal(S-T) ontology is to explicitly represent S-T information contained the commonly-perceived knowledge,and to realize the sharing of information between different disciplines.From the perspective of ontology,this paper conceptualizes the dynamic changes for the geographical phenomena and things,and further refines the S-T ontology which is classified as the S-T object ontology,S-T event ontology and S-T process ontology.From the perspective of dat...