Improving the Efficiency of the PPM Algorithm

  • Authors:
  • D. A. Shkarin

  • Affiliations:
  • -

  • Venue:
  • Problems of Information Transmission
  • Year:
  • 2001

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Abstract

For the PPM algorithm, we suggest new definitions of generalized frequencies of characters and “escapes.” This considerably increases the efficiency of lossless coding (compression) for various types of real-world discrete data.