Results 171 to 180 of about 24,802 (228)

Designing a Query Language for RDF

open access: closedACM Transactions on Database Systems, 2017
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
  +5 more sources

An RDF Query and Transformation Language

open access: closed, 2006
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
openalex   +2 more sources

PatBinQL: a compact, inference-enabled query language for RDF stream processing

open access: closed2018 IEEE International Conference on Big Data (Big Data), 2018
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
openalex   +2 more sources

A path-based RDF query language for CC/PP and UAProf

open access: closedIEEE Annual Conference on Pervasive Computing and Communications Workshops, 2004. Proceedings of the Second, 2004
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
openalex   +2 more sources

A Path Querying Language for Federation of RDF and Relational Database

open access: closedProceedings of the 20th International Workshop on the Web and Databases, 2017
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
openalex   +2 more sources

SWOBE - embedding the semantic web languages RDF, SPARQL and SPARUL into java for guaranteeing type safety, for checking the satisfiability of queries and for the determination of query result types

open access: closedProceedings of the 2009 ACM symposium on Applied Computing, 2009
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
openalex   +2 more sources

W3C Standard RDF Query Language

open access: closed, 2018
Reda Alhajj, Jon Rokne
openalex   +2 more sources

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