Sequence-discriminative training of deep neural networks

  title={Sequence-discriminative training of deep neural networks},
  author={Karel Vesel{\'y} and Arnab Ghoshal and Luk{\'a}s Burget and Daniel Povey},
Sequence-discriminative training of deep neural networks (DNNs) is investigated on a 300 hour American English conversational telephone speech task. Different sequencediscriminative criteria — maximum mutual information (MMI), minimum phone error (MPE), state-level minimum Bayes risk (sMBR), and boosted MMI — are compared. Two different heuristics are investigated to improve the performance of the DNNs trained using sequence-based criteria — lattices are regenerated after the first iteration of… CONTINUE READING
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