A mixed-level switching dynamic system for continuous speech recognition

  title={A mixed-level switching dynamic system for continuous speech recognition},
  author={Jeff Z. Ma and Li Deng},
  journal={Computer Speech & Language},
A two-level mixture linear dynamic system model, with frame-level switching parameters in the observation equation and with segment-level switching parameters in the target-directed state equation, is developed and evaluated. The main contributions of this work are: (1) the new framework for dealing with mixed-level switching in the dynamic system and (2) the novel use of piecewise linear functions, enabled by the introduction of frame-level switching, to approximate the nonlinear function… CONTINUE READING
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