From STLab

ORA: The Natural Ontology of Wikipedia

In this work we present preliminary results on the extraction of ORA: the Natural Ontology of Wikipedia. ORA is obtained through an automatic process that analyses the natural language definitions of DBpedia entities provided by their Wikipedia pages. Hence, this ontology reflects the richness of terms used and agreed by the crowds, and can be updated periodically according to the evolution of Wikipedia.

Downloads

• The Ontology is available as Jena TDB graph. It can be downloaded here as a zip archive.
• Alternatively, the rdf collection of the single graphs generated from each Wikipedia abstract. This collection can be downloaded here.
• ORA can be also queried via SPARQL at this endpoint