1996
DOI: 10.1109/89.536930
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From HMM's to segment models: a unified view of stochastic modeling for speech recognition

Abstract: In recent years, many alternative models have been proposed to address some of the shortcomings of the hidden Markov model, currently the most popular approach to speech recognition. In particular, a variety of models that could be broadly classi ed as segment models have been described for representing a variable-length sequence of observation vectors in speech recognition applications. Since there are many aspects in common between these approaches, including the general recognition and training problems, it… Show more

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Cited by 467 publications
(308 citation statements)
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“…A possible alternative to HMM are the Stochastic Segmental Models. The more sophisticated segmental techniques fit parametric curves to the feature trajectories of the phonemes [24]. There is, however, a much simpler methodology [13] that applies non-uniform smoothing and sampling in order to parametrize any phoneme with the same number of features, independent of its length.…”
Section: Hidden Markov and Segmental Phoneme Modelingmentioning
confidence: 99%
“…A possible alternative to HMM are the Stochastic Segmental Models. The more sophisticated segmental techniques fit parametric curves to the feature trajectories of the phonemes [24]. There is, however, a much simpler methodology [13] that applies non-uniform smoothing and sampling in order to parametrize any phoneme with the same number of features, independent of its length.…”
Section: Hidden Markov and Segmental Phoneme Modelingmentioning
confidence: 99%
“…Because MPCs exploit the notion that trajectories are continuous, they also bear some resemblance to so-called segmental HMMs (Ostendorf, Digalakis, & Kimball, 1996). MPCs nevertheless differ from segmental HMMs in two important respects: (i) the treatment of arc length-particularly, the estimation of a metric g i (x) for each hidden state of the Markov process, and (ii) the natural parameterization of a segmentation model Pr[s | x], as opposed to a synthesis model, Pr [x | s], that is even more complicated than the one in ordinary HMMs.…”
Section: Relation To Hidden Markov Models and Previous Workmentioning
confidence: 99%
“…To release from the limitations of HMM, some alternative models have been proposed. One of the models is the segment model (SM) [1].…”
Section: Introductionmentioning
confidence: 99%