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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Probabilistic Bilinear Transformation Space-Based Joint Maximum A Posteriori Adaptation

  • Received : 2012.02.06
  • Accepted : 2012.05.11
  • Published : 2012.10.31
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Abstract

This letter proposes a more advanced joint maximum a posteriori (MAP) adaptation using a prior model based on a probabilistic scheme utilizing the bilinear transformation (BIT) concept. The proposed method not only has scalable parameters but is also based on a single prior distribution without the heuristic parameters of the previous joint BIT-MAP method. Experiment results, irrespective of the amount of adaptation data, show that the proposed method leads to a consistent improvement over the previous method.

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References

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