ISCA Archive Interspeech 2013
ISCA Archive Interspeech 2013

A new Bayesian network to assess the reliability of speaker verification decisions

Jesús Villalba, Eduardo Lleida, Alfonso Ortega, Antonio Miguel

In some situations the quality of the signals involved in a speaker verification trial is not as good as needed to take a reliable decision. In this work, we present a new method based on Bayesian networks and quality measures to estimate if the trial decision is reliable. We present experiments on the NIST SRE2010 dataset degraded with additive noise. A system well calibrated for clean speech, produces a large actual DCF on the degraded dataset. We use our method to discard the unreliable trials and achieve a dramatic improvement of the cost values. We also prove that our method outperforms previously published approaches.


doi: 10.21437/Interspeech.2013-682

Cite as: Villalba, J., Lleida, E., Ortega, A., Miguel, A. (2013) A new Bayesian network to assess the reliability of speaker verification decisions. Proc. Interspeech 2013, 3132-3136, doi: 10.21437/Interspeech.2013-682

@inproceedings{villalba13b_interspeech,
  author={Jesús Villalba and Eduardo Lleida and Alfonso Ortega and Antonio Miguel},
  title={{A new Bayesian network to assess the reliability of speaker verification decisions}},
  year=2013,
  booktitle={Proc. Interspeech 2013},
  pages={3132--3136},
  doi={10.21437/Interspeech.2013-682}
}