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Building and Maintaining a Semantically Adequate Lexicon Using Cyc

  • Kathy J. Burns
  • Anthony R. Davis
Part of the Text, Speech and Language Technology book series (TLTB, volume 10)

Abstract

The Cyc lexicon is a broad-coverage lexicon which is being constructed as a component of the Cyc KB a very large repository of common sense knowledge. Building and maintaining a large lexicon in conjunction with a knowledge base and inference engine is a much different task than building a stand-alone lexicon, or a lexicon which relies on a small internal or external ontology. In building the Cyc lexicon, we have been concerned not with demonstrating or testing theoretical claims, but with creating a practical tool, since Cyc-based applications demand a certain level of functionality from the lexicon. As such, our work is theory-driven only to the extent that a particular theory proves useful to us. In this chapter we discuss a number of issues which have arisen in developing the Cyc lexicon, including the feasibility of taking advantage of semantic classification schemes as a shortcut to hand-entering lexical information; distinguishing between world and lexical knowledge; and providing a level of semantic detail in the lexicon which is compatible with the expressiveness of Cyc’s internal representation language.

Keywords

Lexical Entry Word Sense Participant Role Mass Noun Count Noun 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • Kathy J. Burns
    • 1
  • Anthony R. Davis
    • 2
  1. 1.CycorpAustinUSA
  2. 2.Department of Linguistics Santa BarbaraUniversity of CaliforniaUSA

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