Présentation par TBL

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The next Web of open, linked data

Mémo de 1989

In March 1989, Tim Berners-Lee submitted a proposal for an information management system to his boss, Mike Sendall. ‘Vague, but exciting’ , were the words that Sendall wrote on the proposal, allowing Berners-Lee to continue.

On voit même le commentaire :) by nicolas Mar 16

Hans Rosling: New insights on poverty and life around

C'est vrai que ce talk est super. Toute la valeur vient du faite d'avoir rassemblé ces données au même endroit. by nicolas Mar 16

In computing , linked data describes a method of publishing structured data so that it can be interlinked and become more useful. It builds upon standard Web technologies such as HTTP and URIs , but rather than using them to serve web pages for human readers, it extends them to share information in a way that can be read automatically by computers. This enables data from different sources to be connected and queried. [ 1 ] Tim Berners-Lee , director of the World Wide Web Consortium , coined the term in a design note discussing issues around the Semantic Web project. [ 2 ] However, the idea is very old and is closely related to concepts including database network models , citations between scholarly articles , and controlled headings in library catalogs. [ citation needed ]

Linked Data

DBpedia

DBpedia is a project aiming to extract structured content from the information created as part of the Wikipedia project. This structured information is then made available on the World Wide Web . [ 2 ] DBpedia allows users to query relationships and properties associated with Wikipedia resources, including links to other related datasets . [ 3 ] DBpedia has been described by Tim Berners-Lee as one of the more famous parts of the Linked Data project. [ 4 ] [ edit ] Background The project was started by people at the Free University of Berlin and the University of Leipzig , in collaboration with OpenLink Software , [ 5 ] and the first publicly available dataset was published in 2007. It is made available under free licences , allowing others to reuse the dataset. Wikipedia articles consist mostly of free text, but also include structured information embedded in the articles, such as "infobox" tables, categorisation information, images, geo-coordinates and links to external Web pages .

Barack Obama, US president , has appointed a new chief information officer who has already said he will act aggressively to change the federal government's use of IT. Vivek Kundra, the new federal CIO and currently chief technology officer at the District of Columbia, said he will adopt consumer technology and ensure the government data is open and accessible. Kundra also wants to use technology such as cloud computing to attack the government's culture of big-contract boondoggles and its hiring of contractors who end up "on the payroll indefinitely". Kundra, in a conference call on Thursday with reporters shortly after President Barack Obama named him as federal CIO said one of his first projects is to create a data.gov web site to "democratise" the federal government's vast information treasures by making them accessible in open formats and in feeds that can be used by application developers.

Barack Obama's CIO pushes for Web 2.0 government

"...his first projects is to create a data.gov web site to "democratise" the federal government's vast information treasures by making them accessible in open formats..." by nicolas Mar 16

Il me parait tous les jours plus clair que nos amis les données veulent partir en vacance. Ce besoin de voyage est d’autant plus fort que le coût d’un trajet numérique Boston / Bangalore tend vers zéro. Et puis après tout, n’est ce pas dans notre nature de partager, copier, diffuser l’information ?

http://nicolas.cynober.fr/blog/63,liberons-les-donnees.html

Libérons les données !

You are either using a browser that does not support JavaScript, or you have disabled JavaScript. OpenStreetMap uses JavaScript for its slippy map.

OpenStreetMap

Du coup j'ai rajouté pearltrees ;) by nicolas Mar 16

Ce deuxième screencast montre les opportunités du web sémantique via des exemples concrets issus du projet Linking Open Data . Ce projet est mené par le W3C , son objectif est de référencer les plus grandes sources de données sémantiques. Le projet le plus abouti de cette initiative est sans aucun doute dbpedia .En effet Wikipedia est de loin l’encyclopédie la plus grande au monde et est accessible gratuitement sur le web. Les éditions de Wikipedia sont accessibles dans plus de 250 langues différentes avec une version anglaise contenant plus de 2 millions d’articles. Malheureusement Wikipedia fournit un moteur de recherche qui se limite à la recherche de texte et de mots clés, ce qui réduit considérablement l’accès à cette base de données de grande valeur.Le web sémantique permet d’effectuer des requêtes explicites sur des informations structurées ainsi que sur des données liées sur différentes sources de données.

Screencast: DBpedia & W3C Linking Open Data

http://nicolas.cynober.fr/blog/59,screencast-2-dbpedia-w3c-linking-open-data.html

Screencast un peu vieux mais les concepts sont toujours d'actualité. by nicolas Mar 16

Berlin est la capitale et la plus grande ville d'Allemagne. Située dans le nord-est du pays, elle forme un land (État fédéré) à part entière et compte environ 3,4 millions d'habitants. L'aire urbaine de la région métropolitaine de Berlin-Brandebourg dépasse les frontières du land et regroupe au total près de 6 millions d'habitants, ce qui en fait une des dix métropoles les plus peuplées de l'Union européenne.

Page DBPedia à propos de Berlin

Le "Semantic Web Gang" parle du Linked Data

Avec également un passage sur les données gouvernementales... Il faudrait faire pareil en France mais je suis pas certain que les mentalités soient pretes :) by nicolas Mar 16

HTML

This document is also available in these non-normative formats: Multi-part XHTML file , PostScript version , PDF version , ZIP archive , and Gzip'd TAR archive . Copyright ©2002 W3C ® ( MIT , INRIA , Keio ), All Rights Reserved. W3C liability , trademark , document use and software licensing rules apply. Abstract This specification defines the Second Edition of XHTML 1.0, a reformulation of HTML 4 as an XML 1.0 application, and three DTDs corresponding to the ones defined by HTML 4. The semantics of the elements and their attributes are defined in the W3C Recommendation for HTML 4.

Le HTML a beaucoup évolué depuis 1990. Aujourd'hui la question se pose pour sa prochaine évolution: HTML5 ou XHTML2. by nicolas Mar 16

XHTML 2 vs. HTML 5

Hypertext

Web Naming and Addressing (URIs, URLs)

Uniform Resource Identifier (URI): Generic Syntax , Internationalized Resource Identifiers (IRIs) , BCP for scheme registration process , guidelines for new schemes , IANA's list of URI schemes The Web is an information space. Human beings have a lot of mental machinery for manipulating, imagining, and finding their way in spaces. URIs are the points in that space.

Les URI restent le coeur du Linked Data et du web de demain. by nicolas Mar 16

HTTP - Hypertext Transfer Protocol

CERN

The Moebius Strip © Cie Gilles Jobin 2007 (Image: Dorothée Thébert) The first Collide@CERN-Geneva prize in Dance and Performance was today awarded by jury to the 47-year-old Swiss-born dancer and choreographer Gilles Jobin for his proposal to use interventions and dance to explore the relationship between mind and body at the world's largest particle physics laboratory. Grand opening today of CERN travelling exhibition 'Accelerating Science' in Ankara, Turkey: https://t.co/Olw3Hdg8 http://t.co/OdTJweHJ Mon 02 Apr