Interrogation
Get flash to fully experience Pearltrees
From OpenOrg Intended Audience This is intended to be a crash course for a techie/programmer who needs to learn the basics ASAP. It is not intended as an introduction for managers or policy makers (I suggest looking at Tim Berners-Lee's TED talks if you want the executive summary). It's primarily aimed at people who're tasked with creating RDF and don't have time to faff around. It will also be useful to people who want to work with RDF data.
Linked Data Guide for Newbies - OpenOrg
W3C Recommendation 15 January 2008 New Version Available: SPARQL 1.1 (Document Status Update, 26 March 2013) The SPARQL Working Group has produced a W3C Recommendation for a new version of SPARQL which adds features to this 2008 version.
SPARQL Query Language for RDF
Now that we’ve published nearly 10,000 of our tags as Linked Open Data , you’re probably wondering what kind of cool applications you can build with this data. To help you get started (and since linked data applications are a little different from your average Web application), we thought we’d provide a sample application and detailed information about how we built it. Our sample application, “ Who Went Where ,” lets you explore recent Times coverage of the alumni of a specified college or university.
Build Your Own NYT Linked Data Application
Semantic web tutorial: RDF, RDFS and SPARQL using CORESE
These pages are deprecated ; please go to the pages of our new team Edelweiss updated 17/04/2007 For remarks or questions on this tutorial contact Fabien Gandon This semantic web tutorial gives a quick tour of RDF, RDFS, SPARQL and Rules. It was designed as a hand-on-keyboard introduction to the basics of RDF model , RDFS semantics for lightweight ontologies, OWL Lite semantics for lightweight ontologies, SPARQL query language for RDF graph bases and production rules for knowledge factorisation in semantic web annotation bases. TOC: RDFS intro , RDF/XML intro , SPARQL intro , Rules intro , OWL intro .
Résumé RDF est un format de données de graphe orienté et étiqueté pour représenter des informations dans le Web. Cette spécification définit la syntaxe et la sémantique du langage d'interrogation SPARQL pour RDF . SPARQL peut être utilisé pour exprimer des interrogations à travers diverses sources de données, que les données soient stockées nativement comme RDF ou vues comme du RDF via un logiciel médiateur (middleware) . SPARQL est capable de rechercher des motifs de graphe (graph patterns) obligatoires et optionnels ainsi que leurs conjonctions et leurs disjonctions. SPARQL gère également le test extensible des valeurs et la contrainte des interrogations par un graphe RDF source.