Briefs

AI Magazine (12/04) Vol. 25, No. 4; Lieberman, Henry; Liu, Hugo; Singh, Push

Common-sense knowledge repositories are being developed at MIT and by a number of other groups for commercial and academic purposes. The Open Mind Common Sense (OMCS) Web site is one of the most inclusive efforts because it gathers information from the general public via Web forms; contributors do not need any special training, and use structured templates and free form entries to input simple English assertions, such as "People live in houses." Since the project's launch in September 2000, more than 14,000 people have contributed to a common-sense database with approximately 600,000 pieces of knowledge. Tailored lexico-syntactic pattern-matching rules were used to create a semantic network from the common-sense facts, resulting in the ConceptNet semantic network that consists of 300,000 concept nodes and 280,000 links.

For more information, visit Open Mind Common Sense (OMCS) site.