23 citations
- Simón Bolívar UniversityVE23 papers
- Instituto Superior de Formación Docente Salomé UreñaDO4 papers
- Universitat Pompeu FabraES3 papers
- Universidad de AntofagastaCL2 papers
- Universidad de OviedoES2 papers
- University of GroningenNL2 papers
- University of the AndesVE2 papers
- Central University of VenezuelaVE1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1 paper
- Durham UniversityGB1 paper
- Florida State UniversityUS1 paper
Showing 2015Show all
3 papers · 1 filter
math.NA2015
Geometrical inverse preconditioning for symmetric positive definite matrices
Jean-Paul Chehab, Marcos Raydan
We focus on inverse preconditioners based on minimizing , where is the preconditioned matrix and is symmetric and positive definite. We present and an…
cs.DB2015★ 1 cited
Efficient Query Processing for SPARQL Federations with Replicated Fragments
Gabriela Montoya, Hala Skaf-Molli, Pascal Molli +1
Low reliability and availability of public SPARQL endpoints prevent real-world applications from exploiting all the potential of these querying infras-tructures. Fragmenting data o…
cs.DB2015★ 5 cited
RDF-Hunter: Automatically Crowdsourcing the Execution of Queries Against RDF Data Sets
Maribel Acosta, Elena Simperl, Fabian Flöck +2
In the last years, a large number of RDF data sets has become available on the Web. However, due to the semi-structured nature of RDF data, missing values affect answer completenes…