Title
CYC: a large-scale investment in knowledge infrastructure
Abstract
Since 1984, a person-century of effort has gone into building CYC, a universal schema of roughly 105 general concepts spanning human reality. Most of the time has been spent codifying knowledge about these concepts; approximately 106 commonsense axioms have been handcrafted for and entered into CYC's knowledge base, and millions more have been inferred and cached by CYC. This article examines the fundamental assumptions of doing such a large-scale project, reviews the technical lessons learned by the developers, and surveys the range of applications that are or soon will be enabled by the technology.
Year
DOI
Venue
1995
10.1145/219717.219745
Commun. ACM
Keywords
Field
DocType
general concept,universal schema,technical lesson,large-scale investment,knowledge base,human reality,codifying knowledge,commonsense axiom,fundamental assumption,knowledge infrastructure,large-scale project
Data science,Cache,Computer science,Axiom,Knowledge base,Schema (psychology)
Journal
Volume
Issue
ISSN
38
11
0001-0782
Citations 
PageRank 
References 
888
116.72
3
Authors
1
Search Limit
100888
Name
Order
Citations
PageRank
Douglas B. Lenat11986895.91