Adversarial Reweighting for Speaker Verification Fairness

Fuente: arXiv
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Hauptverfasser: Jin, Minho, Ju, Chelsea J. -T., Chen, Zeya, Liu, Yi-Chieh, Droppo, Jasha, Stolcke, Andreas
Format: Preprint
Veröffentlicht: 2022
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author Jin, Minho
Ju, Chelsea J. -T.
Chen, Zeya
Liu, Yi-Chieh
Droppo, Jasha
Stolcke, Andreas
author_facet Jin, Minho
Ju, Chelsea J. -T.
Chen, Zeya
Liu, Yi-Chieh
Droppo, Jasha
Stolcke, Andreas
contents We address performance fairness for speaker verification using the adversarial reweighting (ARW) method. ARW is reformulated for speaker verification with metric learning, and shown to improve results across different subgroups of gender and nationality, without requiring annotation of subgroups in the training data. An adversarial network learns a weight for each training sample in the batch so that the main learner is forced to focus on poorly performing instances. Using a min-max optimization algorithm, this method improves overall speaker verification fairness. We present three different ARWformulations: accumulated pairwise similarity, pseudo-labeling, and pairwise weighting, and measure their performance in terms of equal error rate (EER) on the VoxCeleb corpus. Results show that the pairwise weighting method can achieve 1.08% overall EER, 1.25% for male and 0.67% for female speakers, with relative EER reductions of 7.7%, 10.1% and 3.0%, respectively. For nationality subgroups, the proposed algorithm showed 1.04% EER for US speakers, 0.76% for UK speakers, and 1.22% for all others. The absolute EER gap between gender groups was reduced from 0.70% to 0.58%, while the standard deviation over nationality groups decreased from 0.21 to 0.19.
format Preprint
id arxiv_https___arxiv_org_abs_2207_07776
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Adversarial Reweighting for Speaker Verification Fairness
Jin, Minho
Ju, Chelsea J. -T.
Chen, Zeya
Liu, Yi-Chieh
Droppo, Jasha
Stolcke, Andreas
Audio and Speech Processing
Sound
We address performance fairness for speaker verification using the adversarial reweighting (ARW) method. ARW is reformulated for speaker verification with metric learning, and shown to improve results across different subgroups of gender and nationality, without requiring annotation of subgroups in the training data. An adversarial network learns a weight for each training sample in the batch so that the main learner is forced to focus on poorly performing instances. Using a min-max optimization algorithm, this method improves overall speaker verification fairness. We present three different ARWformulations: accumulated pairwise similarity, pseudo-labeling, and pairwise weighting, and measure their performance in terms of equal error rate (EER) on the VoxCeleb corpus. Results show that the pairwise weighting method can achieve 1.08% overall EER, 1.25% for male and 0.67% for female speakers, with relative EER reductions of 7.7%, 10.1% and 3.0%, respectively. For nationality subgroups, the proposed algorithm showed 1.04% EER for US speakers, 0.76% for UK speakers, and 1.22% for all others. The absolute EER gap between gender groups was reduced from 0.70% to 0.58%, while the standard deviation over nationality groups decreased from 0.21 to 0.19.
title Adversarial Reweighting for Speaker Verification Fairness
topic Audio and Speech Processing
Sound
url https://arxiv.org/abs/2207.07776