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RAL: an Algebra for Querying RDF
web information systems engineering, no. 1 (2004): 83-109
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摘要
To make the WWW machine-understandable there is astrong demand both for languages describing metadata andfor languages querying metadata. The Resource DescriptionFramework (RDF), a language proposed by W3C, canbe used for describing metadata about (Web) resources.RDF Schema (RDFS) extends RDF by providing meansfor creating application spe...更多
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