Results 171 to 180 of about 24,802 (228)
Designing a Query Language for RDF
When querying an Resource Description Framework (RDF) graph, a prominent feature is the possibility of extending the answer to a query with optional information. However, the definition of this feature in SPARQL—the standard RDF query language—has raised some important issues.
Marcelo Arenas, Martín Ugarte
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An RDF Query and Transformation Language
RDF Query Language proposals are numerous. However, the most prominent proposals are query languages that were conceived as first generation tryouts of RDF querying, with little or no RDF-specific implementation and use experience to guide design, and based on an ever changing set of syntactical and semantic specifications.
Jeen Broekstra, Arjohn Kampman
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PatBinQL: a compact, inference-enabled query language for RDF stream processing
Stream processing is becoming an omnipresent component in feature-rich computerized applications. The RDF data model is now frequently used to represent streams due to its data integration capabilities and support for reasoning services. In such situations, continuous extensions of the SPARQL query language are used to retrieve information from input ...
Jérémy Lhez +2 more
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A path-based RDF query language for CC/PP and UAProf
By introducing a new method to apply a path expression to RDF queries, we present a new path-based RDF query language, RPath, for CC/PP and UAProf. CC/PP and UAProf, two of the applications of RDF, are standards that describe the context of both users and devices.
K. Matsuyama +3 more
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A Path Querying Language for Federation of RDF and Relational Database
In this paper, we present a federated path querying language (FPQ) as itself an extension of the nested regular path querying language with adding an axis operator to support the federation of RDF dataset and relational database. We have proven that FPQ has more expressive power than the nested regular path query language (not to mention regular path ...
Jiahui Zhang +2 more
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The Semantic Web and its technologies become increasingly important. As more and more Semantic Web applications are being used, developing more stable Semantic Web applications becomes a key issue. The state-of-the-art in programming Semantic Web applications is using complex application programming interfaces of Semantic Web frameworks, where ...
Sven Groppe +2 more
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