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Db2triples : une implémentation de R2RML et DirectMapping en Open Source. Antidot apporte sa contribution au développement du Web de Données en ouvrant son implémentation des recommandations R2RML et DirectMapping du W3C.

db2triples : une implémentation de R2RML et DirectMapping en Open Source

Antidot est impliqué depuis de nombreuses années dans la mise en œuvre opérationnelle des recommandations et standards publiés par le W3C comme RDF, OWL, SKOS ou SPARQL. Ne se cantonnant pas à une approche purement académique, et fort de sa position sur le marché des solutions d’accès à l’information, Antidot a été l’un des premiers éditeurs de logiciels à confronter ces nouveaux outils du Web Sémantique aux besoins et contraintes de grands projets industriels. R2RML: RDB to RDF Mapping Language. This document describes R2RML, a language for expressing customized mappings from relational databases to RDF datasets.

R2RML: RDB to RDF Mapping Language

Such mappings provide the ability to view existing relational data in the RDF data model, expressed in a structure and target vocabulary of the mapping author's choice. R2RML mappings are themselves RDF graphs and written down in Turtle syntax. R2RML enables different types of mapping implementations. Processors could, for example, offer a virtual SPARQL endpoint over the mapped relational data, or generate RDF dumps, or offer a Linked Data interface. 1 Introduction.

A Direct Mapping of Relational Data to RDF. 1 Introduction Relational databases proliferate both because of their efficiency and their precise definitions, allowing for tools like SQL [SQLFN] to manipulate and examine the contents predictably and efficiently.

A Direct Mapping of Relational Data to RDF

Resource Description Framework (RDF) [RDF-concepts] is a data format based on a web-scalable architecture for identification and interpretation of terms. This document defines a mapping from relational representation to an RDF representation. Strategies for mapping relational data to RDF abound. Getting started with RDFa: Creating a basic FOAF profile | webBackplane. Web Sémantique:RDF. Resource Description Framework. Un article de Wikipédia, l'encyclopédie libre.

Resource Description Framework

Pour les articles homonymes, voir RDF. En annotant des documents non structurés et en servant d'interface pour des applications et des documents structurés (par exemple bases de données, GED, etc.) RDF permet une certaine interopérabilité entre des applications échangeant de l'information non formalisée et non structurée sur le Web. Principes fondamentaux[modifier | modifier le code] Un document structuré en RDF est un ensemble de triplets. RDF - Semantic Web Standards. Overview RDF is a standard model for data interchange on the Web.

RDF - Semantic Web Standards

RDF has features that facilitate data merging even if the underlying schemas differ, and it specifically supports the evolution of schemas over time without requiring all the data consumers to be changed. RDF extends the linking structure of the Web to use URIs to name the relationship between things as well as the two ends of the link (this is usually referred to as a “triple”). Using this simple model, it allows structured and semi-structured data to be mixed, exposed, and shared across different applications. This linking structure forms a directed, labeled graph, where the edges represent the named link between two resources, represented by the graph nodes. The Friend of a Friend (FOAF) project | FOAF project. FOAF Vocabulary Specification. Classes Class: foaf:Agent Agent - An agent (eg. person, group, software or physical artifact).

FOAF Vocabulary Specification

The Agent class is the class of agents; things that do stuff.