PUBLIC MARKS from parmentierf with tags rdf & SPARQL

This is one of several semantic repositories that contains and publishes RDF and co-reference data, forming the underlying distributed storage model behind the RKB Explorer initiative. The data presented here comes from downloading and processing as many OAI archives from around the world as I could manage to harvest using OAI-PMH. The list of archives came from ROAR.

4store, an efficient, scalable and stable RDF database. Système de gestion de base de données RDF open source pour des grands volumes de données (annonce 15 milliards de triplets !!). Propose un sparql endpoint, une API REST pour ajouter ou enlever des données, un système de backup. Pas de précision sur la façon de supporter les graphes nommés. Pas de support de Jena ou Sesame.

Anzo includes both an open source enterprise-featured RDF quad store and a sophisticated service oriented, semantic middleware platform that provides support for multiple users, distributed clients, offline work, real-time notification, named-graph modularization, versioning, access controls, and transactions. Developers will discover a host of features we believe are necessary for the creation of sophisticated applications based on W3C semantic technology standards like OWL, RDF and SPARQL.

en quoi les technologies du Web sémantique constituent des réponses à certaines limites du modèle des bases de données relationnelles et donc en quoi elles peuvent avoir leur place dans les systèmes d'information traditionnelles

Knoodl facilitates community-oriented development of OWL based ontologies and RDF knowledgebases.

Create, Read, Update, and Delete (CRUD) operations are the most basic database operations, but they are also the most crucial. CRUD operations are typically done using the Structured Query Language (SQL) on relational database systems. As the Web is becoming more and more data-oriented, there is a need to shift from SQL-based CRUD operations to Semantic Web-based CRUD operations. Learn how to use PHP to perform CRUD operations over the Semantic Web.

SPARQLBot is a web-based service that reads and writes Semantic Web data based on simple, human-friendly commands received via IRC or the Web. The command base can be freely extended using a browser-based editor. SPARQLBot can process microformats, RSS, several RDF serializations, and results from parameterized SPARQL queries.

A semantic agent for xmpp / jabber network which finds and shares content about resources (using RDF/SPARQL) for you and your jabber friends.

ARC is a flexible RDF system for semantic web and PHP practitioners. It's free, open-source, easy to use, and runs in most web server environments.

Diaporama présentant les buts et les technologies du Web sémanti

knowee is an open-source web contact organizer (or "online social graph manager" for better buzzword compliance). It's decentralized and lets you aggregate, track, organize, and share information about you and the people you know.

A l'occasion de la nouvelle version de Dbpedia, je me suis remis au boulot et j'ai mis au point quelques exemples qui, je l'espère, montreront tout l'intérêt de disposer de données structurées, disponibles sous une forme normalisée, RDF, et interrogeable via un langage de requête et un protocole normalisé, SPARQL. Bref, montrer l'intérêt des technologies du Web sémantique.