RDFIO-Mediawiki Extension

RDFIO is a Mediawiki extension which:

• adds SPARQL Endpoint to SMW installtion
• imports RDFs into the wiki
• queries remote SPARQL endpoint URL

Related Work

The article RDFIO: extending Semantic MediaWiki for interoperable biomedical data management was quite eye opening, as to how RDFIO can be used to expand the territory of Mediawiki + Semantic Mediawiki into Semantic Web, in "usage scenarios such as bootstrapping new wikis from existing data sources, or round-tripping between the SMW data structure and the RDF data format used in the wider Semantic Web, "

Installing

Installation of RDFIO is simple, if the installation steps are followed.

However, as described in the following issue: the extension development team is having a hard time to keep up with the development and deployment rate of Mediawiki. So for the moment, for Mediawiki 1.34.1, the branch 59-make-work-with-mw-1.34 should be checkout.

cd extensions/Rdfio
git checkout 59-make-work-with-mw-1.34
php ../../maintenance/update.php

Once done in the page Special:RDFIOAdmin it should read: "The triplestore is already set up"

import RDF

using Rdfio/maintenance/importRdf.php it is possible to import to the wiki RDF files. As example I will import Tim Berners Lee FOAF card

php importRdf.php --server http://localhost --in ~/Documents/Projects/RDF/LearningSparql/TimBernersLee.ttl

That import will probably add a few Jobs to be MW queue which need to be run:

 php ../../maintenance/update.php

SPARQL Query

Now that TBL FOAF se can use the Special:SPARQLEndpoint to query it

@PREFIX w: <http://localhost/beerwiki/index.php/Special:URIResolver/> .

SELECT *
WHERE { ?s ?p "Timothy Berners-Lee" }
LIMIT 25