Results 1 to 10 of about 23,677 (193)
Provenance for SPARQL queries [PDF]
The Semantic Web - ISWC 2012 - 11th International Semantic Web
Conference, Part I, LNCS, Vol. 7649, ISBN 978-3-642-35175-4, pp. 625-640,
Springer Berlin Heidelberg, November 2012, 2012 Determining trust of data available in the Semantic Web is fundamental for applications and users, in particular for linked open data obtained from SPARQL endpoints. There exist several proposals in the literature to annotate SPARQL query results with values from abstract models, adapting the seminal works on provenance for annotated relational ...
A.P. Antoine Zimmermann +7 more
arxiv +4 more sources
On Defining SPARQL with Boolean Tensor Algebra [PDF]
, 2015 The Resource Description Framework (RDF) represents information as subject-predicate-object triples. These triples are commonly interpreted as a directed labelled graph. We propose an alternative approach, interpreting the data as a 3-way Boolean tensor.
Metzler, Saskia, Miettinen, Pauli
arxiv +4 more sources
Dynamic Provenance for SPARQL Update [PDF]
arXiv, 2014 While the Semantic Web currently can exhibit provenance information by using the W3C PROV standards, there is a "missing link" in connecting PROV to storing and querying for dynamic changes to RDF graphs using SPARQL. Solving this problem would be required for such clear use-cases as the creation of version control systems for RDF.
C. Gutierrez +15 more
arxiv +5 more sources
Processing SPARQL queries with regular expressions in RDF databases [PDF]
BMC Bioinformatics, 2011 Background As the Resource Description Framework (RDF) data model is widely used for modeling and sharing a lot of online bioinformatics resources such as Uniprot (dev.isb-sib.ch/projects/uniprot-rdf) or Bio2RDF (bio2rdf.org), SPARQL - a W3C ...
Cho Hune +6 more
doaj +2 more sources
Answering SPARQL queries modulo RDF Schema with paths [PDF]
arXiv, 2013 SPARQL is the standard query language for RDF graphs. In its strict instantiation, it only offers querying according to the RDF semantics and would thus ignore the semantics of data expressed with respect to (RDF) schemas or (OWL) ontologies. Several extensions to SPARQL have been proposed to query RDF data modulo RDFS, i.e., interpreting the query ...
Alkhateeb, Faisal, Euzenat, Jérôme
arxiv +5 more sources
Updating RDFS ABoxes and TBoxes in SPARQL [PDF]
arXiv, 2014 Updates in RDF stores have recently been standardised in the SPARQL 1.1 Update specification. However, computing answers entailed by ontologies in triple stores is usually treated orthogonal to updates. Even the W3C's recent SPARQL 1.1 Update language and SPARQL 1.1 Entailment Regimes specifications explicitly exclude a standard behaviour how SPARQL ...
Albin Ahmeti +2 more
arxiv +3 more sources
XQOWL: An Extension of XQuery for OWL Querying and Reasoning [PDF]
Electronic Proceedings in Theoretical Computer Science, 2015 One of the main aims of the so-called Web of Data is to be able to handle heterogeneous resources where data can be expressed in either XML or RDF. The design of programming languages able to handle both XML and RDF data is a key target in this context ...
Jesús M. Almendros-Jiménez
doaj +4 more sources
Efficient Query Processing for SPARQL Federations with Replicated Fragments [PDF]
, 2015 Low reliability and availability of public SPARQL endpoints prevent real-world applications from exploiting all the potential of these querying infras-tructures.
Gabriela Montoya +3 more
openalex +4 more sources
Consultas Skyline en SPARQL: Una Visión General
Revista Técnica de la Facultad de Ingeniería, 2022 El crecimiento de los conjuntos de datos RDF (Resource Description Framework) y la expansión de su uso junto con la definición de SPARQL, un lenguaje de consulta declarativo, han convertido la gestión de datos RDF en un área activa de investigación y ...
Marlene Goncalves Da Silva +1 more
doaj +1 more source
Preliminary results of a conceptual graph query language
Proceedings of the International Florida Artificial Intelligence Research Society Conference, 2023 The contribution of this article is to bring the interesting features of SPARQL to the conceptual graph model while preserving its distinctive features and especially the graphical ones.
David Genest +2 more
doaj +1 more source