A universal mapping for kolmogorov's superposition theorem

  • Authors:
  • David A. Sprecher

  • Affiliations:
  • University of California, USA

  • Venue:
  • Neural Networks
  • Year:
  • 1993

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Abstract

Based on constructions of Kalmogorov and an earlier refinement of the author, we use a sequence of integrally independent positive numbers to construct a continuous function @j(x) having the following property: Every real-valued uniformly continuous function f(x"1, ..., x"n) of n = 2 variables can be obtained as a superposition of continuousfunctions of one variable based on weighted sums of translates of the fixedfunction @j(x) that is independent of the number of variables n. From this is obtained a stronger version of the Hecht-Nielsen three-layer feedforward neural network for implementing f(x"1, ..., x"n).