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The Cyc Lexicon

The Cyc Lexicon

This video was recorded at IJS BrownBag Seminar. The Cyc knowledge base (KB) is a formalized representation of a vast quantity of fundamental human knowledge: facts, rules of thumb, and heuristics for reasoning about the objects and events of everyday life. The medium of representation is the formal language CycL, described below. The KB consists of terms--which constitute the vocabulary of CycL--and assertions which relate those terms. These assertions include both simple ground assertions and rules. Cyc is not a frame-based system: the Cyc team thinks of the KB instead as a sea of assertions, with each assertion being no more "about" one of the terms involved than another. The Cyc KB is divided into many (currently thousands of) "microtheories", each of which is essentially a bundle of... Show More

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