Kolmogorov Complexity in Randomness Extraction

  • Authors:
  • John M. Hitchcock;A. Pavan;N. V. Vinodchandran

  • Affiliations:
  • University of Wyoming;Iowa State University;University of Nebraska-Lincoln

  • Venue:
  • ACM Transactions on Computation Theory (TOCT)
  • Year:
  • 2011

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Abstract

We clarify the role of Kolmogorov complexity in the area of randomness extraction. We show that a computable function is an almost randomness extractor if and only if it is a Kolmogorov complexity extractor, thus establishing a fundamental equivalence between two forms of extraction studied in the literature: Kolmogorov extraction and randomness extraction. We present a distribution Mk based on Kolmogorov complexity that is complete for randomness extraction in the sense that a computable function is an almost randomness extractor if and only if it extracts randomness from Mk.