• DocumentCode
    1288294
  • Title

    Automatic word recognition based on second-order hidden Markov models

  • Author

    Mari, Jean-Francois ; Haton, Jean-Paul ; Kriouile, Abdelaziz

  • Author_Institution
    CRIN, Vandoeuvre les Nancy, France
  • Volume
    5
  • Issue
    1
  • fYear
    1997
  • fDate
    1/1/1997 12:00:00 AM
  • Firstpage
    22
  • Lastpage
    25
  • Abstract
    We propose an extension of the Viterbi algorithm that makes second-order hidden Markov models computationally efficient. A comparative study between first-order (HMM1s) and second-order Markov models (HMM2s) is carried out. Experimental results show that HMM2s provide a better state occupancy modeling and, alone, have performances comparable with HMM1s plus postprocessing
  • Keywords
    hidden Markov models; maximum likelihood estimation; speech processing; speech recognition; Viterbi algorithm; automatic word recognition; computationally efficient HMM; first-order Markov models; performance; postprocessing; second-order hidden Markov models; state occupancy modeling; Computational complexity; Gaussian distribution; Hidden Markov models; Random processes; Shape; Solid modeling; Speech processing; State estimation; Stochastic processes; Viterbi algorithm;
  • fLanguage
    English
  • Journal_Title
    Speech and Audio Processing, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1063-6676
  • Type

    jour

  • DOI
    10.1109/89.554265
  • Filename
    554265