Text Compression by Context Tree Weighting

  • Authors:
  • J. Aberg;Y. M. Shtarkov

  • Affiliations:
  • -;-

  • Venue:
  • DCC '97 Proceedings of the Conference on Data Compression
  • Year:
  • 1997

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Abstract

The results of an experimental study of different modifications of the context tree weighting algorithm are described. In particular, the combination of this algorithm with the well-known PPM approach is studied. For one of the considered modifications the decrease of the average (for the Calgary Corpus) coding rate is 0.091 bits compared with PPMD.