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How to publish Linked Data on the Web

How to publish Linked Data on the Web
This document provides a tutorial on how to publish Linked Data on the Web. After a general overview of the concept of Linked Data, we describe several practical recipes for publishing information as Linked Data on the Web. This tutorial has been superseeded by the book Linked Data: Evolving the Web into a Global Data Space written by Tom Heath and Christian Bizer. This tutorial was published in 2007 and is still online for historical reasons. The Linked Data book was published in 2011 and provides a more detailed and up-to-date introduction into Linked Data. The goal of Linked Data is to enable people to share structured data on the Web as easily as they can share documents today. The term Linked Data was coined by Tim Berners-Lee in his Linked Data Web architecture note. Applying both principles leads to the creation of a data commons on the Web, a space where people and organizations can post and consume data about anything. This chapter describes the basic principles of Linked Data.

http://wifo5-03.informatik.uni-mannheim.de/bizer/pub/LinkedDataTutorial/

Un Web sémantique facile - 2003-02-17 Un Web sémantique facile There is a english translation done by Steph Tout le monde parle du Web sémantique, mais concrètement des modèles de fonctionnement pratique existent-t-ils ? Describing Copyright in RDF - Creative Commons Rights Expression Language The Creative Commons Rights Expression Language (CC REL) lets you describe copyright licenses in RDF. For more information on describing licenses in RDF and attaching those descriptions to digital works, see CC REL in the Creative Commons wiki. Classes Work Why Carry the Cost of Linked Data? – Tom Heath’s Displacement Activities June 16th, 2010 by Tom Heath In his ongoing series of niggles about Linked Data, Rob McKinnon claims that “mandating RDF [for publication of government data] may be premature and costly“. The claim is made in reference to Francis Maude’s parliamentary answer to a question from Tom Watson.

Online Access Overview The following interfaces exist for online access: Rest Api: provides basic access to a database with a full Open Street Map (OSM) planet file loaded. Sparql Endpoints: enable queries on databases with a reduced (but hopefully for many applications relevant) subset of the whole data loaded. The Sparql Endpoints come in two flavours: Static: Contains the data extracted from a OSM planet file of a certain date Live: Initially a copy of the static version that is then synchronized with the minutely updates from OSM. As of 2012 February 1st, the Virtuoso database powering the live SPARQL endpoint is not synchronized anymore.

What is Linked Data? The recent LinkedData Planet conference in NYC marked, I think, a real transition point. The conference signaled the beginning movement of the Linked Data approach from the research lab to the enterprise. As a result, there was something of a schizophrenic aspect at many different levels to the conference: business and research perspectives; realists and idealists; straight RDF and linked data RDF; even the discussions in the exhibit area versus some of the talks presented from the podium. Like any new concept, my sense was a struggle around terminology and common language and the need to bridge different perspectives and world views. Like all human matters, communication and dialog were at the core of the attendees’ attempts to bridge gaps and find common ground.

Web sémantique et modèle de données (data.bnf.fr) The data.bnf.fr project has to be placed in the context of our move towards open data. This approach has been defined by the W3C, regarding the “semantic web” or “linked data”.Find out more about how semantic web and linked data are used in the BnF. This is about structuring resources in order to make them reusable by machines in a better way. The data.bnf.fr project uses data which have been created in various formats such as Intermarc for the catalogue of printed books, XML-EAD for archives inventories and Dublin Core for the digital library.

9th Extended Semantic Web Conference The Extended Semantic Web Conference 2012 (ESWC 2012) takes place from May 27, 2012 to May 31, 2012 in Heraklion, Crete, Greece. The Extended Semantic Web Conference (ESWC) is a major venue for discussing the latest scientific results and technology innovations around semantic technologies. Building on its past success, ESWC is seeking to broaden its focus to span other relevant research areas in which Web semantics plays an important role. The goal of the Semantic Web is to create a Web of knowledge and services in which the semantics of content is made explicit and content is linked to both other content and services novel applications allowing to combine content from heterogeneous sites in unforeseen ways and support enhanced matching between users needs and content.

Linked Universities - vocabularies Course and qualification description MLO - Metadata for Learning Opportunities Metadata for Learning Opportunities (MLO) is a European standardized model addressing metadata sufficient for advertising a learning opportunity. The MLO standard is also designed to facilitate semantic technologies and web architectures to support several mechanisms for exchange of the information and aggregation of information by third party service suppliers. An RDF-S version of MLO has been developed by Scott Wilson and is currently available at using the namespace

Creating Linked Data - Part I: Analysing and Modelling One of the goals of the government’s Data Project is to equip the people who own data with the capability to publish it as linked data. There’s an overwhelming amount of work to do here from providing tool support to changing a culture that makes it hard to publish data. But we can start by taking some baby steps that simply explain what’s involved in turning existing data into linked data. I’m currently reworking the traffic count linked data that I first transformed back in September, and I thought it would be helpful to talk through that process for several reasons:

SKOS - Semantic Web Standards Overview SKOS is a common data model for sharing and linking knowledge organization systems via the Web. Many knowledge organization systems, such as thesauri, taxonomies, classification schemes and subject heading systems, share a similar structure, and are used in similar applications. SKOS captures much of this similarity and makes it explicit, to enable data and technology sharing across diverse applications. Why Linked Data for data.gov.uk? data.gov.uk was finally launched to the public last week (still in beta, but now a more public beta than the beta that it’s been in for the last few months). It’s a great step forward, and everyone involved should be proud of both the amount of data that’s been made available and the website itself, which (unlike a lot of UK government IT) was developed rapidly by a small team based on open source software (and at low cost). This is a first step on a long road. One of the features of the UK Government’s approach to freeing data is the emphasis on using linked data. What I don’t think has really been articulated is either what that means or why we should take this approach. From what I’ve seen, developers seem to think:

OWL - Semantic Web Standards Overview The W3C Web Ontology Language (OWL) is a Semantic Web language designed to represent rich and complex knowledge about things, groups of things, and relations between things. OWL is a computational logic-based language such that knowledge expressed in OWL can be exploited by computer programs, e.g., to verify the consistency of that knowledge or to make implicit knowledge explicit. OWL documents, known as ontologies, can be published in the World Wide Web and may refer to or be referred from other OWL ontologies. OWL is part of the W3C’s Semantic Web technology stack, which includes RDF, RDFS, SPARQL, etc.

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