Robust parametric modeling of durations in hidden markov models

David Burshtein

doi:10.1109/89.496221

Robust parametric modeling of durations in hidden markov models

David Burshtein^*

^*Corresponding author for this work

School of Electrical Engineering

Deptartment of Electrical Engineering-Systems

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

Abstract

A major weakness of conventional hidden Markov models is that they implicitly model state durations by a geometric distribution, which is usually inappropriate. This paper presents a modified Viterbi algorithm that, by incorporating proper state and word duration modeling, significantly reduces the string error rate of the conventional Viterbi algorithm for a speaker-independent, connected-digit string task. The algorithm has essentially the same computational requirements of the conventional Viterbi algorithm.

Original language	English
Pages (from-to)	240-242
Number of pages	3
Journal	IEEE Transactions on Speech and Audio Processing
Volume	4
Issue number	3
DOIs	https://doi.org/10.1109/89.496221
State	Published - 1996

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10.1109/89.496221

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abstract = "A major weakness of conventional hidden Markov models is that they implicitly model state durations by a geometric distribution, which is usually inappropriate. This paper presents a modified Viterbi algorithm that, by incorporating proper state and word duration modeling, significantly reduces the string error rate of the conventional Viterbi algorithm for a speaker-independent, connected-digit string task. The algorithm has essentially the same computational requirements of the conventional Viterbi algorithm.",

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AB - A major weakness of conventional hidden Markov models is that they implicitly model state durations by a geometric distribution, which is usually inappropriate. This paper presents a modified Viterbi algorithm that, by incorporating proper state and word duration modeling, significantly reduces the string error rate of the conventional Viterbi algorithm for a speaker-independent, connected-digit string task. The algorithm has essentially the same computational requirements of the conventional Viterbi algorithm.

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Robust parametric modeling of durations in hidden markov models

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