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Linked Open Data (LOD)

“Linekd Open Data defines a vision of globally accessible and linked data on the internet based on the RDF standards of the semantic web. LOD is often thought of as a virtual data cloud where anyone can access any data they are authorized to see and may also add to any data without disturbing the original data source. This provides an open environment where data can be created, connected and consumed on internet scale. A basic theory of LOD is that data has more value if it can be connected to other data. Data, in this context, is any structured web-based information.” (W3C eGov Wiki: Linked Open Data, consulté 22 novembre 2020)

W3C- World Wide Web Consortium (Wikipedia, en angl.)

Hypertext Markup Language – HTML (Wikipedia en français)

Linked open data (Wikipedia – en fr.)

Tim Berners-Lee, The Linked Open Data (2006/2009)

The Linked Open Data Cloud – Browse

Introduction to the Principles of Linked Open Data (The Programming historian)

Knowledge Graph

Knowledge Graph

Wikidata as a Knowledge Graph

Google Knowledge Graph

Semantic Web (Wikipedia)

DBPedia

DBPedia – Documentation et exemples

DBPedia en français

DBPedia – article Wikipedia (fr)

Wikidata

Wikidata

Wikidata:Tutoriel SPARQL

Wikidata:SPARQL query service/queries

Wikidata SPARQL Endpoint

Wikidata SPARQL Endpoint

Wikidata Query Builder

Le web des données

Les principes du web du données: les 5 étoiles

Le contexte: 5-star open data Les données ouvertes

URI / IRI

Grammaire et syntaxes: RDF, modèle abstrait, RDFS (RDF Schema), RDF N-quads, OWL: OWL-Wikipedia – OWL un monde

Sérializations: syntaxe RDF XML, Turtle

Espaces de noms: définition dans le contexte XML ; Recommendation 2006

Vocabulaires, thesauri: SKOS; ontologies: DBPedia (notice fra) – DBPedia (notice eng) – DBPedia ontology – DBPedia FR

Synthèse: Tom Heath and Christian Bizer (2011) Linked Data: Evolving the Web into a Global Data Space (1st edition). Synthesis Lectures on the Semantic Web: Theory and Technology, 1:1, 1-136. Morgan & Claypool.

Cours en ligne

Harald Sack, Knowledge Engineering with Semantic Web Technologies (introduction complète à la méthodologie et à la sémantique)

Harald Sack, Linked Data Engineering (Semantic Web) OpenHPI (plus orienté ingéniérie et application)

Interroger le web des données

Le langage SPARQL

SPARQL 1.1: SPARQL 1.1 Query Language

SPARQL 1.1 Update : SPARQL 1.1 Update

GeoSPARQL: GeoSPARQL

Tutoriels:

Le tutoriel SPARQL

Tutoriel vidéo: partie I , partie II

Applications

La plateforme Geovistory

L'ontologie du projet symogih.org