[hal-01290932] An Extension of SPARQL with Fuzzy Navigational Capabilities for Querying Fuzzy RDF Data

The Resource Description Framework (RDF) is the graph-based standard data model for representing semantic web information, and SPARQL is the standard query language for querying RDF data. Because of the huge volume of linked open data published on the web, these standards have aroused a large interest in the last years. This paper proposes a fuzzy extension of the SPARQL language that improves its expressiveness and usability. This extension allows (1) to query a fuzzy RDF data model, and (2) to express fuzzy preferences on data and on the structure of the data graph, which has not been proposed in any previous fuzzy extensions of SPARQL.

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