We convert Freebase to industry-standard RDF, to produce a Rosetta Stone for schema.org, natural language processing and social-semantic systems.
:BaseKB data can be used to rapidly explore areas of general knowledge, and form a base for developing knowledge bases for specific tasks. Facts expressed in the :BaseKB namespace are linked broadly to linked data sources of all kinds, making systems of this sort interoperable inside and between enterprises.
:BaseKB is an RDF knowledge base derived from Freebase, a major source of the Google Knowledge Graph; :BaseKB contains about half as many facts as the Freebase dump because it removes trivial, ill-formed and repetitive facts that make processing difficult. :BaseKB is a product of the open-source Infovore framework and is packaged for use with market leading triple stores, as well as Hadoop and other parallel frameworks.
:BaseKB contains over a billion facts about more than 40 million subjects, including people, places, creative works, and everything that has a page in Wikipedia.
:BaseKB has a user's manual which gives step-by-step instructions for writing queries in the SPARQL query language.
Freebase releases an RDF dump every weekend, and our automatic process converts Freebase to :BaseKB every week. The weekly versions, which we call :BaseKB Now, can be downloaded from the basekb-now AWS bucket on a requester-pays basis.
From time to time we release a Gold edition of :BaseKB which is frozen at a moment in time. Gold versions will be retained permanently, and are a good choice for newcomers to :BaseKB who don't want the burden of dealing with a new version every week.