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Named Graphs, Provenance and Trust

Carroll, Jeremy J.; Bizer, Christian; Hayes, Patrick; Stickler, Patrick

External Copyright Consideration

Keyword(s): RDF; semantic web; provenance; trust

Abstract: The Semantic Web consists of many RDF graphs nameable by URIs. This paper extends the syntax and semantics of RDF to cover such Named Graphs. This enables RDF statements that describe graphs, which is beneficial in many Semantic Web application areas. As a case study, we explore the application area of Semantic Web publishing: Named Graphs allow publishers to communicate assertional intent, and to sign their graphs; information consumers can evaluate specific graphs using task-specific trust policies, and act on information from those Named Graphs that they accept. Graphs are trusted depending on: their content; information about the graph; and the task the user is performing. The extension of RDF to Named Graphs provides a formally defined framework to be a foundation for the Semantic Web trust layer. Notes: Christian Bizer, Freie Universitat Berlin, Berlin, Germany. Patrick Hayes, IHMC, Florida, USA. Patrick Stickler, Nokia, Tampere, Finland

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