A Note on Approximation of Uniform Distributions From Variable-to-Fixed Length Codes

  • Authors:
  • F. Cicalese;L. Gargano;U. Vaccaro

  • Affiliations:
  • Universita di Salerno, Baronissi;-;-

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 2006

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Abstract

In this correspondence, we prove that the probability distribution induced on the leaves of a Tunstall parse tree for a given source is a (unique) lower bound in the partially ordered set of the probability distributions induced by all possible parse trees with a same number of leaves, and ordered according to the majorization partial order. We apply this result to the problem of optimally approximating a uniform distribution with flips of a biased coin