Reviving discrete HMMs: the myth about the superiority of continuous HMMs

@inproceedings{Digalakis1999RevivingDH,
  title={Reviving discrete HMMs: the myth about the superiority of continuous HMMs},
  author={Vassilios Digalakis and Stavros Tsakalidis and Leonardo Neumeyer},
  booktitle={EUROSPEECH},
  year={1999}
}
Despite what is generally believed, we have recently shown that discrete-distribution HMMs can outperform continuousdensity HMMs at significantly faster decoding speeds. Recognition performance and decoding speed of the discrete HMMs are improved by using product-code Vector Quantization (VQ) and mixtures of discrete distributions. In this paper, we present efficient training and decoding algorithms for the discrete-mixture HMMs (DMHMMs). Our experimental results show that the high-level of… CONTINUE READING

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