Learning DNF in time 2õ(n1/3)

  • Authors:
  • Adam R. Klivans;Rocco A. Servedio

  • Affiliations:
  • Laboratory for Computer Science, MIT, Cambridge, MA;Division of Engineering and Applied Sciences, Harvard University, Cambridge, MA

  • Venue:
  • Journal of Computer and System Sciences - STOC 2001
  • Year:
  • 2004

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Abstract

Using techniques from learning theory, we show that any s-term DNF over n variables can be computed by a polynomial threshold function of degree O(n1/3 log s). This upper bound matches, up to a logarithmic factor, the longstanding lower bound given by Minsky and Papert in their 1968 book Perceptrons. As a consequence of this upper bound we obtain the fastest known algorithm for learning polynomial size DNF, one of the central problems in computational learning theory.