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Preview: Public marks with tags rdf & SPARQL

Public marks with tags rdf & SPARQL


RDF Beginner's Guide on Vimeo



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 - Scalable RDF storage


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.

Open Anzo


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.



Limites du modèle relationnel et Web sémantique | Les petites cases


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.

semantic-dogfood - Google Code


Knowee / nhoizey


Encore un site proposant l'agrégation de vos contenus sociaux, mais avec enfin une utilisation orientée Web Sémantique, notamment RDF et requêtage SPARQL !

Building Semantic Web CRUD operations using PHP


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.

SPARQL Query Language for RDF


ARQ - Property Paths


A property path expression (or just 'path') is similar to a string regular expression but over properties, not characters. ARQ determines all matches of a path expression and binds subject or object as appropriate. Only one match is recorded - no duplicates for any given path expression, although is the path is used in a situation where it's initial points is already repeated in a pattern, then this duplication is preserved.

RegExp ou XPath appliqué à un graphe? Intéressant, mais peut-être abscons.

SPARQLBot - Your Semantic Web Commandline - benjamin nowack's blog


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.

Qi4j: REST EntityStore and SPARQL EntityFinder = rich client web apps!


For the finder part I have implemented a SPARQL backend, which internally delegates to Sesame2, which is the same default index/query that is used to find Entities in general. This in itself is pretty cool, because it means that you can write your domain model in Java, have it be automatically persisted in a store like Neo4j, and then with no extra effort expose it through SPARQL for AJAX webapps to consume (both RDF/XML and JSON output is supported today). Minimally writing a domain model only involves writing Java interfaces (no classes), so it's pretty easy to get started.

Tant de choses à tester...

AKSW : Projects / x Operator


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

Search RDF data with SPARQL


Search RDF data with SPARQL

Easy RDF and SPARQL for LAMP systems - ARC RDF Classes for PHP


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.


Easy RDF and SPARQL for LAMP systems

A la découverte du Web sémantique » SlideShare


Diaporama présentant les buts et les technologies du Web sémanti

Your Contacts, the Webby Way - knowee


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.