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• W1608863994 abstract "RDF is a knowledge representation language dedicated to the annotation of resources within the framework of the semantic web. Among the query languages for querying an RDF knowledge base, some, such as SPARQL, are based on the formal semantics of RDF and the concept of consequence semantic, others, inspired by the work in data bases, uses regular expressions making it possible to search the paths in the graph associated with the knowledge base. In order to combine the expressivity of these two approaches, we define a mixed language, called PRDF (for Paths RDF) in which the arcs of a graph can be labeled by regular expressions. We define the syntax and the semantics of these objects, and propose a correct and complete algorithm which, by a kind of homomorphism, calculates the semantic consequence between an RDF graph and a PRDF graph. This algorithm is the heart of the extension of the SPARQL query language which we propose and implemented: a PSPARQL query allows to query an RDF knowledge base using graph patterns whose predicates are regular expressions." @default.
• W1608863994 created "2016-06-24" @default.
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• W1608863994 date "2007-01-01" @default.
• W1608863994 modified "2023-09-29" @default.
• W1608863994 title "RDF with regular expressions" @default.
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