:BaseKB

Broad Spectrum Commonsense Knowledge

We convert Freebase to industry-standard RDF, to produce a Rosetta Stone for schema.org, natural language processing and social-semantic systems.

Wide Spectrum Knowledge

IT systems misunderstand humans and their world because they lack the experience we have living in our world. Common Sense Knowledge from :BaseKB enables systems to understand references to global geographical regions, business entities and scientific concepts from spreadsheets, full text and documents of all kinds.

: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.

Introducing :BaseKB

: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.

Join our mailing list to keep up with developments.

Applications

: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 powers sites such as legalentityidentifier.info and linernotes.com; :BaseKB data is visible in the OpenLink Software LOD Cloud.

:BaseKB is the subject of a growing number of academic works (see [1] and [2].)

Getting Started

The most recent version of :BaseKB Gold can be downloaded via BitTorrent, or, if you wish to run SPARQL queries against it, you can run it in the AWS cloud, pre-loaded into OpenLink Virtuoso 7.

:BaseKB has a user's manual which gives step-by-step instructions for writing queries in the SPARQL query language.

Legal

:BaseNow is ready for commercial and non-commercial use under the a CC-BY license. :BaseKB contains data from Freebase and other sources. :BaseKB is provided on an "as-is" basis, by downloading and using :BaseKB, you agree to hold Ontology2 harmless to any damages that may result.

:BaseKB Versions

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.

2014-09-21 s3://basekb-now/2014-09-21-00-00/ release notes
2014-09-14 s3://basekb-now/2014-09-14-00-00/ release notes
2014-09-07 s3://basekb-now/2014-09-07-00-00/ release notes
2014-08-31 s3://basekb-now/2014-08-31-00-00/ release notes
2014-08-24 s3://basekb-now/2014-08-24-00-00/ release notes
2014-08-17 s3://basekb-now/2014-08-17-00-00/ release notes
2014-08-17 s3://basekb-now/2014-08-17-00-00/ release notes
2014-08-10 s3://basekb-now/2014-08-10-00-00/ release notes
2014-08-03 s3://basekb-now/2014-08-03-00-00/ release notes
2014-07-27 s3://basekb-now/2014-07-27-00-00/ release notes

:BaseKB is a product of Ontology2. See our privacy policy and terms of use. :BaseKB contains data from Freebase.