knOWLer is an ontology-based information management system targeting semantic integration into large-scale information systems. The semantic is provided through an ontology language (OWL), showing that ontological reasoning can be scaled to sizes of standard IR systems.

WordNet.OWL is an OWL-ontology based on WordNet 1.7.1 lexical database.

WordNet171.OWL contains both the ontology schema and the instances.

This OWL representation of the WordNet ontology can be freely used provided that proper references [1] are mentioned. Furthermore, please consider the WordNet licence in case of commercial use of this ontology.

Download: wordnet171.owl.gz (aprox. 8.5Mb).

[1] Claudia Ciorăscu, Iulian Ciorăscu and Kilian Stoffel,
knOWLer - Ontological Support for Information Retrieval Systems,
In Proceedings of 26th Annual International ACM SIGIR Conference, Workshop on Semantic Web, Toronto, Canada, august 2003.
other publications