Abstract

AbstractThe Resource Description Framework (RDF) is a flexible model for representing information about resources on the Web. As a World Wide Web Consortium (W3C) Recommendation, RDF has rapidly gained popularity. With the widespread acceptance of RDF on the Web and in the enterprise, a huge amount of RDF data is being proliferated and becoming available. Efficient and scalable management of RDF data is therefore of increasing importance. This is creating a new set of data management requirements involving RDF, and RDF data management has attracted attention in the database and Semantic Web communities. In this chapter, RDF data and techniques for data management will be introduced. We start by providing a formal definition of RDF that includes the model and semantics, and then focuses on the RDF query language SPARQL. We provide an algebraic syntax and a compositional semantics for this language. Finally, we introduce RDF data storage and present an overview of the current state of the art in RDF data storage strategy.

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