Factor Analysis Simplified

Abstract

We show how the factor analysis model for speaker verification can be successfully implemented using some fast approximations which result in minor degradations in accuracy and open up the possibility of training the model on very large databases such as the union of all of the Switchboard corpora. We tested our algorithms on the NIST 1999 evaluation set (carbon data as well as electret). Using warped cepstral features we obtained equal error rates of about 6.3% and minimum detection costs of about 0.022.

DOI: 10.1109/ICASSP.2005.1415194

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@inproceedings{Kenny2005FactorAS, title={Factor Analysis Simplified}, author={Patrick Kenny and Gilles Boulianne and Pierre Ouellet and Pierre Dumouchel}, booktitle={ICASSP}, year={2005} }