• DocumentCode
    2053707
  • Title

    Asymptotical optimality of two variations of Lempel-Ziv codes for sources with countably infinite alphabet

  • Author

    Uyematsu, Tomohiko ; Kanaya, Fumio

  • Author_Institution
    Tokyo Inst. of Technol., Japan
  • fYear
    2002
  • fDate
    2002
  • Firstpage
    122
  • Abstract
    This paper considers the problem of universally coding stationary ergodic sources with countably infinite alphabet. Especially, we show a sufficient condition for both of Lempel-Ziv ´78 and ´77 (LZ78 and LZ77) coding algorithms to achieve asymptotically the entropy rate of those sources.
  • Keywords
    data compression; entropy; source coding; Lempel-Ziv codes; asymptotical optimality; countably infinite alphabet; entropy rate; stationary ergodic sources; Code standards; Data compression; Decoding; Entropy; Information theory; Sufficient conditions;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
  • Print_ISBN
    0-7803-7501-7
  • Type

    conf

  • DOI
    10.1109/ISIT.2002.1023394
  • Filename
    1023394
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2053707