Cyc: toward programs with common sense

  • Authors:
  • Douglas B. Lenat;R. V. Guha;Karen Pittman;Dexter Pratt;Mary Shepherd

  • Affiliations:
  • Microelectronics and Computer Technology Corp., Austin, TX;Microelectronics and Computer Technology Corp., Austin, TX;Microelectronics and Computer Technology Corp., Austin, TX;Microelectronics and Computer Technology Corp., Austin, TX;Microelectronics and Computer Technology Corp., Austin, TX

  • Venue:
  • Communications of the ACM
  • Year:
  • 1990

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Abstract

Cyc is a bold attempt to assemble a massive knowledge base (on the order of 108 axioms) spanning human consensus knowledge. This article examines the need for such an undertaking and reviews the authos' efforts over the past five years to begin its construction. The methodology and history of the project are briefly discussed, followed by a more developed treatment of the current state of the representation language used (epistemological level), techniques for efficient inferencing and default reasoning (heuristic level), and the content and organization of the knowledge base.