A differential equation method to derive the formulas of the T-complexity and the LZ-complexity

  • Authors:
  • Kenji Hamano;Hirosuke Yamamoto

  • Affiliations:
  • Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan;Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan

  • Venue:
  • ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 1
  • Year:
  • 2009

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Abstract

It is shown that the T-complexity can be derived from a differential equation which represents how average codeword length increases by the T-augmentation. Furthermore, the proposed differential equation method can be applied to the LZ-complexity in the same way. This new approach is simple, and the obtained expressions coincide with the ones in previous studies.