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In order to enable the data stored in relational database can be accessed dynamically for the Semantic Web and realize the relational database's query with SPARQL query language, the idea of realizing the SPARQL-TO-SQL query translation based on restrict RDF view is proposed. First, a novel way used to build the restrict RDF view for relational database is introduced. Then, based on restrict RDF view...
This paper adopts an approach for querying spatial semantic by building the Web Ontology language (OWL) format ontology and introducing extended SPARQL Protocol and RDF Query Language (SPARQL) to search spatial semantic relations. Semantic approaches need to be developed by ontology, so we use OWL to describe spatial information extracted by the large-scale map of Wuhan. The approach is illustrated...
Existing web service technologies are only at the syntactic level, we still have semantic gaps in cross-domain resource discovery, heterogeneous resource query, resource translation from one domain to another at the semantic level. The Semantic web seeks to expose the vast information resource of the web as data that computers can automatically interpret. This paper presents how semantic web technologies...
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