A Spectral Lower Bound Technique for the Size of Decision Trees and Two-Level AND/OR Circuits

  • Authors:
  • Y. Brandman;A. Orlitsky;J. Hennessy

  • Affiliations:
  • -;-;-

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1990

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Abstract

A universal lower-bound technique for the size and other implementation characteristics of an arbitrary Boolean function as a decision tree and as a two-level AND/OR circuit is derived. The technique is based on the power spectrum coefficients of the n dimensional Fourier transform of the function. The bounds vary from constant to exponential and are tight in many cases. Several examples are presented.