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The proposal and development of semantic web make ontology, as a new knowledge organization and semantic description method, get attention in various fields. The building of ontology is a basic and important task in semantic web. The construction method and organizational structure of ontology will directly affect the application of ontology. Based on the analysis of hierarchical characters existing...
Ontology Model and Semantic Link Network (SLN) are two important semantic data models in Semantic Web. Ontology Model can describe network resource in concept space, while SLN can describe various links and relations between network resources. Combination of Ontology Model and SLN can help to improve the effect of network resource retrieval, but data transfer and exchange between ontological knowledge...
Spatial Information Grid (SIG) can share spatial data and computing resources with users from different fields. But there are some semantic problems in SIG. The solutions of these problems face great challenges. Among all the resolutions of semantic problem, Semantic Ontology appears more suitable to solve these semantic problems in SIG. To address the challenges, this paper proposes and analyzes...
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