We convert Freebase to industry-standard RDF, to produce a Rosetta Stone for schema.org, natural language processing and social-semantic systems.
:BaseKB Now is produced from the Freebase RDF Dump. Now is
refreshingly compatible with RDF standard tools because it removes invalid, unnecessary and dangerous facts. Other than
rdf:type, :BaseKB Now leaves Freebase vocabulary
A product of the open-source Infovore framework, :BaseKB Now is ready for commercial and academic use under the same CC-BY license as Freebase.
:BaseKB Now is published on a weekly basis by an automated process. Most releases are published as requester pays, which means that you pay the transfer costs (12 cents per gigabyte, about $3.00 for a complete dump.) Transfer costs are zero if you are working inside the us-east-1 zone in Amazon Web Services.
The structure of :BaseKB now is described here. Because it is segmented into major horizontal divisions, you may not need to download the complete product.
Once we have certain quality issues controlled, we expect to produce quarterly releases that will be distributed via BitTorrent. These releases will have indefinite data retention and will be of particular interest to academic users who would like their results to be reproducable over the long term.
:BaseKB is a brand under which Ontology2 markets semantic data files, many of which are products of the open-source Infovore framework. We're upgrading Infovore to radically improve its scalability and developing new :BaseKB products at this moment -- please join the discussion on the future of Infovore and :BaseKB.
Most of this site describes three products, the "Lime", "Light" and "Pro" editions. Current work is towards producing something like "Lime" which can be flavored for any taste.
:BaseKB knows about people, places, books, movies, medicines, airports, automobiles, historical events and just about anything that would come up in a game of "20 questions".
Based on Freebase, :BaseKB enables applications to interact with DBPedia, schema.org, the Google Knowledge Graph, the Facebook Open Graph and other semantic-social systems.
Knowledge from :BaseKB can also populate databases on a wide range of topics, organize content, reconcile disparate databases and power NLP systems with unprecedented capabilities.
:BaseKB Lite and :BaseKB Pro were produced from the discontinued Freebase quad dump. :BaseKB Pro is a 7.8 GB file that contains all topics and significant well-formed facts from Freebase; :BaseKB Pro transforms Freebase by mapping all Freebase vocabulary to unique mid identifiers.
:BaseKB Lite is much smaller, at 2.8 GB, and consists of a consistent subset of Freebase facts concerning the Freebase schema and objects that exist in DBpedia. :BaseKB Lite has lower hardware requirements than :BaseKB Pro and has a better correspondence between system concepts and "common sense" concepts than either Freebase or DBpedia alone.
Research is under way to discover if it possible and desirable to produce a products similar to :BaseKB Pro or Lite based on the new RDF dump.