WordPress SIOC Reference

What is it about?

This article outlines the integration of data from WordPress into Virtuoso, allowing interaction through NNTP (for comments), and mapping WordPress data to the SIOC ontology for the purpose of constructing SPARQL? Queries against WordPress Weblog posts, comments, user and group data.

Why is it important?

Not only does the cross-protocol integration with NNTP allow another angle of input from users of legacy newsreaders, but constructing SPARQL? Queries offers a powerful feature of viewing the mapped to the SIOC ontology current WordPress data.

How does one use this feature?

There is an online demonstration at http://demo.openlinksw.com/wordpress/.
You can run the queries below or your own created ones using the Virtuoso SPARQL query page and you should use the following Graph(s) URI: http://demo.openlinksw.com/wpl_v

What are the RDF Views supported?

WordPress_rdf_views_script.sql or view the online version here.

Key WP to SIOC Mappings

WP	SIOC	Sample Value
Only one Weblog Instance	rdf:type	sioc:Container
Instance Type	rdf:type	sioct:Weblog
Instance Description	sioc:description	"Just another WordPress weblog"

Using SPARQL CONSTRUCT to Export SIOC-based RDF Data Sets

CONSTRUCT-based SPARQL queries are very useful when trying to expose RDF (via a SPARQL Endpoint) to RDF Data Set consumers that do not support SPARQL. In a sense, the SPARQL CONSTRUCT statements as part of a SPARQL Protocol payload deliver a Data Web (Web 3.0) Experience to Interactive-Web Clients (Web 1.0).

List of all registered WordPress members returned as an RDF Graph