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Les ontologies et la représentation des connaissances. In my previous article, you can see here, I quickly introduced the notion of ontology, but not enough to really know what this can be.

Les ontologies et la représentation des connaissances

So we'll here see more in detail what may be an ontology with a field known as knowledge representation. I recommend before reading this article to read the previous. The representation of knowledge is a system defining a series of classes and a series of properties that connect the classes. You can also see it as an algebra: we have elements which defined operations. Additional reminder in the field of the Semantic Web, a concept is a class and a relationship corresponds to a property. In my previous article, I left off on the fact that it was possible to search for data based on knowledge. Paris Sémantique. BauDataWeb: The European Building and Construction Materials Database for the Semantic Web. Le Web sémantique s'étend sur le poste de travail : Web sémantique : quand le Web devient données.

Reposant pourtant sur une architecture 100% Web, comme nous avons pu le voir dans notre dossier, le Web sémantique et les technologies qui le motorisent trouvent des débouchés au sein d’environnements moins distribués.

Le Web sémantique s'étend sur le poste de travail : Web sémantique : quand le Web devient données

Si l’ontologie peut notamment être utilisée pour décrire des processus métiers dans les entreprises, pour orchestrer l’automatisation de la gestion de la connaissance, à un degré moindre, on peut également retrouver le principe sur le poste de travail. Agreement between DCMI and the FOAF Project. The Dublin Core Metadata Initiative (DCMI) is an open organization, incorporated in Singapore as a public, not-for-profit Company limited by Guarantee (registration number 200823602C), engaged in the development of interoperable metadata standards that support a broad range of purposes and business models.

Agreement between DCMI and the FOAF Project

DCMI is the maintenance organization for the vocabulary DCMI Metadata Terms. The Friend of a Friend (FOAF) Project aims at creating a Web of machine-readable pages describing people, the links between them, and the things they create and do, using an open, decentralized technology for connecting social Web sites and the people they describe. The FOAF Project is the maintenance organization for the FOAF Vocabulary.

La sémantique affine le référencement de produits sur les moteurs. Utiliser des solutions de contextualisation et un système d'agrégation des différentes fiches proposées par les marchands sur un article permet aux moteurs d'afficher des informations plus précises et en temps réel.

La sémantique affine le référencement de produits sur les moteurs

La croissance de l'offre de produits sur les sites marchands représente un défi pour les moteurs de recherche comme Yahoo! Shopping, Google Product Search ou encore Bing Shopping : ils doivent identifier et référencer toujours plus d'articles dans leur base. Evolution Towards Web 3.0: The Semantic Web. Découvrez Fise, un moteur sémantique Open-Source ! L'Europe se dote de son moteur sémantique : Fise. FISE - IKS Project. SparqlImplementations - W3C Wiki. Showcase — HTSQL documentation. HTSQL was created in 2005 to provide an XPath-like HTTP interface to PostgreSQL for client-side XSLT screens and reports.

Showcase — HTSQL documentation

HTSQL found its audience when analysts and researchers bypassed the user interface and started to use URLs directly. The language has evolved since then. 10 Rules for Succeeding in a Web 3.0 World. Example.php - Sparql Query Builder. SPARQL, comment illuminer vos mashups en consommant les données du Linked Data ? Open W3C-standards like SKOS provide a great chance to combine corporate information with Internet-based resources - PoolParty. Dr.

Open W3C-standards like SKOS provide a great chance to combine corporate information with Internet-based resources - PoolParty

Horst Baumgarten has worked for Roche for almost 25 years. He was head of Information Management at Roche Professional Diagnostics for 15 years and has become head of Scientific Information Technologies in 2010. His “mantra” is simple: “I want to support my colleagues at Roche to more easily find the needed information for their daily work”. Baumgarten is convinced, that the general data access problem can no longer be solved with the help of traditional approaches. Instead, he started to implement semantic technologies at Roche. PoolParty Team had the chance to talk with Dr. 20110307HabilTalk.pdf (Objet application/pdf) Community Network Blogs.

After working for 2 ½ years in the research project Aletheia (see my last blog entry), I am now working in the research project CUBIST and will use this blog to inform you about this project.

Community Network Blogs

So let me introduce CUBIST with its description from the CUBIST homepage. Adresses URI sympas pour le Web sémantique. Placebook – L’analyse géostatistique de Facebook et de votre profil. Le site que nous vous présentons aujourd’hui est une découverte de François, notre correspondant du bassin d’Arcachon, créateur de Geoscript.fr.

Placebook – L’analyse géostatistique de Facebook et de votre profil

Cette merveille qui devrait ravir les amateurs de statistiques géolocalisées en temps réel se nomme Placebook et ambitionne de présenter la répartition des utilisateurs du plus célèbre réseau social ainsi qu’une présentation précise de la localisation de l’ensemble de vos amis à l’échelle mondiale. Toutefois, ça fonctionne aussi si vous n’avez que des contacts dans le Loiret. Take your jumbled mess of feeds and make them one.

Construire une infrastructure numérique pour les SHS : Participer à ISIDORE et à la construction du web de données. Web 3.0: Powering Startups to Become Smartups. If you are a Web-based technology startup focused on the 2.0 version of the Web (a.k.a.

Web 3.0: Powering Startups to Become Smartups

Web 2.0), then you are not thinking outside of the box anymore. The Web is constantly evolving: innovating and implementing new technologies; adapting in a more timely manner to user feedback and needs; redefining the roles of business partners; and pushing the boundaries of what is possible. This is the first article in my four-part series about powering startups to become smartups.

You can find the timeline for future installments of my series at the end of this article. If you’re still beating the Web 2.0 drum then you are not thinking outside the box. The intent of this first installment is to whet your appetite, to give you a broad overview of the criteria and trends that I believe are shaping the next evolution of the Web.

An Introduction to Linked Data. Seth Grimes's Tweet on the Sandro Hawke's video presentation caught my attention.

An Introduction to Linked Data

The presentation, entitled An Introduction to Linked Data, was recorded in June 8, 2010 at the Cambridge Semantic Web Gathering, occurred at Massachusetts Institute of Technology(MIT) in Cambridge, MA. Sandro works at World Wide Web Consortium, an international community where Member organizations, a full-time staff, and the public work together to develop Web standards.

From a Summary: "Although the first Semantic Web standards are more than ten years old, only recently have we begun to actually see machines sharing data on the Web. The key turning point was the acceptance of the core Linked Data principle, that object identifiers should also work with Web protocols to access useful information. SKOS and OWL 2 are Now Interoperable. In tech news, SKOS has been altered to interoperate with OWL 2. Up until now the two vocabularies haven’t been able to “play together nicely,” but thanks to a few simple tweaks to SKOS, they are now able to operate together smoothly. According to the article, “In the semantic Web, arguably SKOS is the right vocabulary for representing simple knowledge structures, and OWL 2 is the right language for asserting axioms and ontological relationships. In the early days we chose a reliance on SKOS for the UMBEL reference concept ontology, because of UMBEL’s natural role as a knowledge structure.”

Simple changes to SKOS, fully explained in the article, have bridged the gap: “For UMBEL, and we think other vocabularies, the transition to OWL 2 is important for many reasons, including the ‘punning’ of individuals and classes. Other reasons include better handling of annotation properties, a better emerging set of tools, and the use of inference and reasoning engines.” Open LIDS (Linked Data Services) Implementing SPARQL 1.1 Query - first findings. I am currently in the middle of implementing SPARQL 1.1 Query Language into Sesame 2 (code can be found in Sesame's subversion repository, branch 2.4). The current working draft specifies a number of new features for SPARQL, and I will briefly make some points about the features I have implemented thus far, noting problems I encountered or where the current working draft was unclear to me. 1.

Expressions in SELECT This new feature was fairly straightforward to implement, mainly as Sesame already had support for it in its query algebra. I only needed to adapt the parser. SPIN - SPARQL Inferencing Notation. SPIN - SPARQL Syntax. Abstract This document describes the SPIN SPARQL Syntax, an RDF representation of the semantic web query language SPARQL. The SPIN SPARQL Syntax provides an alternative representation of SPARQL queries that goes beyond the textual format. The main benefit of this syntax is that it makes it possible to consistently store SPARQL queries together with the domain model.

All resources from the domain model are represented as proper RDF resource references instead of only having them as strings. Having a triple-based SPARQL representation makes it easier to maintain hybrid models in which RDF/OWL definitions are mixed with SPARQL expressions. Data 3.0 (a Manifesto for Platform Agnostic Structured Data) Update 5. The Federated Enterprise (Using Semantic Technology Standards to Federate Information and to Enable Emergent Analytics) Getting Started with RDF and SPARQL Using 4store and RDF.rb. Updated to include some of Arto Bendicken’s recommendations. This post is a response to Richard Pope’s Linked Data/RDF/SPARQL Documentation Challenge.

In it, he asks for documentation of the following steps: Install an RDF store from a package management system on a computer running either Apple’s OSX or Ubuntu Desktop. Install a code library (again from a package management system) for talking to the RDF store in either PHP, Ruby or Python. Programatically load some real-world data into the RDF datastore using either PHP, Ruby or Python. Le W3C monte au front. Un ascenseur pour vos données. Connect your Conversations - Silentale. OpenAmplify Injects Semantics Into Keyword Targeting Systems.

Open Data Protocol. Semantic Web Database Platform. Semantic data extractor - QA @ W3C. Does Linked Data need RDF ? Fourre-tout personnel virtuel de Got. Socialite - All your social networks in one application. RealTimeSemanticWeb (rtsw)