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298

answers:

5

I am building an ontology-processing tool and need lots of examples of various owl ontologies, as people are building and using them in the real world. I'm not talking about foundational ontologies such as Cyc, I'm talking about smaller, domain-specific ones.

+2  A: 

There's no definitive collection afaik, but these links all have useful collections of OWL and RDFS ontologies:

In addition, there are some general-purpose RDF/RDFS/OWL search engines you may find helpful:

Ian

Ian Dickinson
+1  A: 

Thanks! A couple more I found:

Kevin Pauli
A: 

One more concept search tool: falcons

Ian Dickinson
A: 

Within the life-science domain, the publically abvailable ontologies can be found listed on the OBO Foundry site. These ontologies can be queried via the ontology lookup service or the NCBO's Bioportal, which also contains additional resources.

fgibson
A: 

There is also one good web engine for searching for ontologies. It is called Watson Semantic Web Search and you can try it here.

Bakhtiyor