Note: Old Knowledge Base

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The Active Knowledge Base

The active KB consists of 73,701,863 unique factoids factoids learned from Wikipedia, Gigaword, the Brown Corpus, the BNC, the ANC, the ICSWM 2009 weblog corpus, Project Gutenberg e-books (including the 1911 Encyclopædia Britannica), WebBase, and other sources.

The knowledge consists of generalized propositions – knowledge about, e.g., cats, trees, people, revolutions, etc. We do not include information about specific events like the Russo–Japanese War nor about specific individuals like Barack Obama.


Supported by NSF grants IIS-0916599 and IIS-1016735 and by subcontract FY10-01-0297 under ONR STTR N00014-10-M-0297.