ISCA Archive Eurospeech 1999
ISCA Archive Eurospeech 1999

Discounted likelihood linear regression for rapid adaptation

William Byrne, Asela Gunawardana

Rapid adaptation schemes that employ the EM algorithm may suffer from overtraining problems when used with small amounts of adaptation data. An algorithm to alleviate this problem is derived within the information geometric framework of Csiszár and Tusnády, and is used to improve MLLR adaptation on NAB and Switchboard adaptation tasks. It is shown how this algorithm approximately optimizes a discounted likelihood cri-terion.


doi: 10.21437/Eurospeech.1999-54

Cite as: Byrne, W., Gunawardana, A. (1999) Discounted likelihood linear regression for rapid adaptation. Proc. 6th European Conference on Speech Communication and Technology (Eurospeech 1999), 203-206, doi: 10.21437/Eurospeech.1999-54

@inproceedings{byrne99_eurospeech,
  author={William Byrne and Asela Gunawardana},
  title={{Discounted likelihood linear regression for rapid adaptation}},
  year=1999,
  booktitle={Proc. 6th European Conference on Speech Communication and Technology (Eurospeech 1999)},
  pages={203--206},
  doi={10.21437/Eurospeech.1999-54}
}