ISCA Archive Eurospeech 1997
ISCA Archive Eurospeech 1997

Ensemble methods for connectionist acoustic modelling

Gary D. Cook, Steve R. Waterhouse, A.J. Robinson

In this paper we investigate a number of ensemble methods for improving the performance of connectionist acoustic models for large vocabulary continuous speech recognition. We discuss boosting, a data selection technique which results in an ensemble of models, and mixtures-of-experts. These techniques have been applied to multi-layer perceptron acoustic models used to build a hybrid connectionist-HMM speech recognition system. We present results on a number of ARPA benchmark tasks, and show that the ensemble methods lead to considerable improvements in recognition accuracy.


doi: 10.21437/Eurospeech.1997-520

Cite as: Cook, G.D., Waterhouse, S.R., Robinson, A.J. (1997) Ensemble methods for connectionist acoustic modelling. Proc. 5th European Conference on Speech Communication and Technology (Eurospeech 1997), 1959-1962, doi: 10.21437/Eurospeech.1997-520

@inproceedings{cook97_eurospeech,
  author={Gary D. Cook and Steve R. Waterhouse and A.J. Robinson},
  title={{Ensemble methods for connectionist acoustic modelling}},
  year=1997,
  booktitle={Proc. 5th European Conference on Speech Communication and Technology (Eurospeech 1997)},
  pages={1959--1962},
  doi={10.21437/Eurospeech.1997-520},
  issn={1018-4074}
}