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Web Ontology Language

The OWL family contains many species, serializations, syntaxes and specifications with similar names. OWL and OWL2 are used to refer to the 2004 and 2009 specifications, respectively. Full species names will be used, including specification version (for example, OWL2 EL). When referring more generally, OWL Family will be used. History[edit] Early ontology languages[edit] Ontology languages for the web[edit] In 2000 in the United States, DARPA started development of DAML led by James Hendler.[12] In March 2001, the Joint EU/US Committee on Agent Markup Languages decided that DAML should be merged with OIL.[12] The EU/US ad hoc Joint Working Group on Agent Markup Languages was convened to develop DAML+OIL as a web ontology language. OWL started as a research-based[14] revision of DAML+OIL aimed at the semantic web. Semantic web standards[edit] The Semantic Web provides a common framework that allows data to be shared and reused across application, enterprise, and community boundaries. Related:  Explore Later

Friend of a friend (informatique) Un article de Wikipédia, l'encyclopédie libre. Logo FOAF FOAF (de l'anglais Friend of a friend, littéralement « l’ami d’un ami ») est un vocabulaire RDF permettant de décrire des personnes et les relations qu’elles entretiennent entre elles. Le protocole WebID, anciennement FOAF+SSL[1]., est un protocole d'authentification décentralisé utilisant des documents FOAF comme conteneur d'informations de profil et le protocole TLS pour l'authentification. <rdf:RDF xmlns:rdf=" xmlns:foaf=" xmlns:rdfs=" Wales</foaf:name><foaf:title>Mr. (en) Portail du projet(en) FOAF Schema 0.1 : spécification du vocabulaire FOAF. (en) FOAF Corp est une extension de FOAF au domaine des entreprises.On pourra aussi visualiser en Flash l’application expérimentale (en) They rule.

SPARQL SPARQL (pronounced "sparkle", a recursive acronym for SPARQL Protocol and RDF Query Language) is an RDF query language, that is, a semantic query language for databases, able to retrieve and manipulate data stored in Resource Description Framework format.[2][3] It was made a standard by the RDF Data Access Working Group (DAWG) of the World Wide Web Consortium, and is recognized as one of the key technologies of the semantic web. On 15 January 2008, SPARQL 1.0 became an official W3C Recommendation,[4][5] and SPARQL 1.1 in March, 2013.[6] SPARQL allows for a query to consist of triple patterns, conjunctions, disjunctions, and optional patterns.[7] Implementations for multiple programming languages exist.[8] "SPARQL will make a huge difference" making the web machine-readable according to Sir Tim Berners-Lee in a May 2006 interview.[9] Advantages[edit] The example below demonstrates a simple query that leverages the ontology definition "foaf", often called the "friend-of-a-friend" ontology.

Simple Knowledge Organisation System Un article de Wikipédia, l'encyclopédie libre. SKOS ou Simple Knowledge Organization System (Système simple d'organisation des connaissances) est une recommandation du W3C publiée le 18 août 2009 pour représenter des thésaurus, classifications ou d'autres types de vocabulaires contrôlés ou de langages documentaires. S'appuyant sur le modèle de données RDF, son principal objectif est de permettre la publication facile de vocabulaires structurés pour leur utilisation dans le cadre du Web sémantique. Le développement de SKOS a impliqué des acteurs à la fois de la communauté RDF et des experts en Science de l'information. SKOS cherche à être au maximum compatible avec les standards tels ceux des thésaurus, monolingue ou multilingue[1]. Historique[modifier | modifier le code] SWAD Europe (2002-2004) SKOS a d'abord été un produit du projet SWAD-Europe[2], un projet financé par la Communauté européenne, dans le cadre du programme Technologies de la Société de l'Information[3].

RDF Schema Un article de Wikipédia, l'encyclopédie libre. La première version de RDFS a été proposée en mars 1999, et la recommandation finale publiée par le W3C en février 2004. Les composants principaux de RDFS sont intégrés dans un langage d'ontologie plus expressif, OWL. Principales caractéristiques de RDFS[modifier | modifier le code] Classes et sous-classes[modifier | modifier le code] Un exemple simple de rdfs:Class est foaf:Person dans le vocabulaire FOAF. ex:Jean rdf:type foaf:Person La définition de rdfs:Class est récursive. rdfs:Class est la classe de toutes les classes. rdfs:subClassOf permet de définir des hiérarchies de classes. Par exemple, 'Toute personne est un Agent': foaf:Person rdfs:subClassOf foaf:Agent Propriétés[modifier | modifier le code] RDFS précise la notion de propriété définie par RDF en permettant de donner un type ou une classe au sujet et à l'objet des triplets. rdfs:domain définit la classe des sujets liée à une propriété. ex:travailledans rdfs:domain foaf:Person

REX | Jerry’s Brain app: background and support page Thank you for buying and installing the Jerry’s Brain app (if you haven’t yet but would like to, click here). This page should explain what you’ve gotten into and where to turn with questions or comments. I did not create TheBrain app, nor am I in charge of the servers or the App Store side. First, some important things you should know: Jerry’s Brain is an experiment, one person’s visual journal, not a professionally published database. You can learn a bunch more by watching this short intro to my Brain. My Brain is always accessible freely through your desktop browser at, but that version doesn’t work well on other devices. What is this software? Jerry’s Brain is built on PersonalBrain, PC/Mac/Linux software created by TheBrain, a company based in Los Angeles. Who are you? In December 1997, when I first saw PersonalBrain, I was a technology industry analyst, and it was my job to interview startups like this one. Why are you doing this?

Ontologie (informatique) Un article de Wikipédia, l'encyclopédie libre. Par analogie, le terme est repris en informatique et en science de l'information, où une ontologie est l'ensemble structuré des termes et concepts représentant le sens d'un champ d'informations, que ce soit par les métadonnées d'un espace de noms, ou les éléments d'un domaine de connaissances. L'ontologie constitue en soi un modèle de données représentatif d'un ensemble de concepts dans un domaine, ainsi que des relations entre ces concepts. L'objectif premier d'une ontologie est de modéliser un ensemble de connaissances dans un domaine donné, qui peut être réel ou imaginaire. Les ontologies sont employées dans l'intelligence artificielle, le Web sémantique, le génie logiciel, l'informatique biomédicale ou encore l'architecture de l'information comme une forme de représentation de la connaissance au sujet d'un monde ou d'une certaine partie de ce monde. Une des définitions de l'ontologie qui fait autorité est celle de Gruber[2] : Notes

Tool For Thought « Battle Of The Sexes, cont. | Main | DevonThink Continued » January 29, 2005 Tool For Thought This week's edition of the Times Book Review features an essay that I wrote about the research system I've used for the past few years: a tool for exploring the couple thousand notes and quotations that I've assembled over the past decade -- along with the text of finished essays and books. I suspect there will be a number of you curious about the technical details, so I've put together a little overview here, along with some specific observations. The software I use now is called DevonThink, and I'm sorry to report that it is only available for Mac OS X. I talked in the Times essay about using the tool as a springboard for new ideas and inspiration. These are all books that I have transcribed digital passages from over the past 10 years or so -- you can see how many quotes for each book in the little number in parentheses after each title. This is where it gets interesting. Comments Thanks. Doug

OWL Web Ontology Language Reference W3C Recommendation 10 February 2004 New Version Available: OWL 2 (Document Status Update, 12 November 2009) The OWL Working Group has produced a W3C Recommendation for a new version of OWL which adds features to this 2004 version, while remaining compatible. Please see OWL 2 Document Overview for an introduction to OWL 2 and a guide to the OWL 2 document set. This version: Latest version: Previous version: Editors: Mike Dean, BBN TechnologiesGuus Schreiber, Free University Amsterdam Authors: Sean Bechhofer, University of Manchester Frank van Harmelen, Free University AmsterdamJim Hendler, University of MarylandIan Horrocks, University of ManchesterDeborah L. Please refer to the errata for this document, which may include some normative corrections. See also translations. Copyright © 2004 W3C® (MIT, ERCIM, Keio), All Rights Reserved. Abstract Status of this document Contents 1.

Leerburg Dog Training | Puppy Training Articles I wrote this article to help new puppy owners wade through the sea of information on our web site and frankly, on the internet. I have listed the specific products I feel new puppy owners should have. These are products we use in our home when we raise a puppy (which we are doing right now for our pup, Favor who is 6 months old). When people bring a new puppy home they are often confronted by problems that were never expected. Biting and chewing problems are just a few surprises they face. This article will attempt to explain why puppies bite and what can be done about it. We get many emails on a weekly basis that deal with problems new puppy owners have as a result of poor socialization. I get many emails asking if they should neuter their dogs. A year or two ago I wrote an article titled "The Ground Work to Becoming a Pack Leader." One of the most common themes in the many emails I get every day concern problems people have with house training their dogs.