[Developers] mapping Freebase to KR systems?

[John Giannandrea]

Rich Morin wrote:
> Has anyone done anything like mapping Freebase to other
> Knowledge Representation systems?  For example, Protege
> might be an interesting tool for exploring the Freebase
> ontology and PowerLoom might be able to reason about
> (subsets of) Freebase's relationships.

Freebase is more of a database than an ontology.
There is no direct mapping from our types to, say, OWL representations.
This is not to say it cant be done, just that it is not there yet.

A different thing would be mapping between the topics and
ontology/databases like Cyc, SUMO or WordNet.
This is possible and desirable, it requires reconciliation though.

However we do plan to provide an RDF export of the freebase data
which should be compatible with some SW tools.

> Speaking of which, if I wanted to download a full copy
> of the Freebase ontology, is there a better way than
> crawling through the domains and types?

Currently you have to export all the types with MQL.
You can also explore with a tool like
	http://www.mjtemplate.org/examples/schemas/

We do plan to provide 'data dumps' which would include
the schemas in some flattened form.

-jg