MST-KD: Multiple Specialized Teachers Knowledge Distillation for Fair Face Recognition

Fuente: arXiv
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Autori principali: Caldeira, Eduarda, Cardoso, Jaime S., Sequeira, Ana F., Neto, Pedro C.
Natura: Preprint
Pubblicazione: 2024
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author Caldeira, Eduarda
Cardoso, Jaime S.
Sequeira, Ana F.
Neto, Pedro C.
author_facet Caldeira, Eduarda
Cardoso, Jaime S.
Sequeira, Ana F.
Neto, Pedro C.
contents As in school, one teacher to cover all subjects is insufficient to distill equally robust information to a student. Hence, each subject is taught by a highly specialised teacher. Following a similar philosophy, we propose a multiple specialized teacher framework to distill knowledge to a student network. In our approach, directed at face recognition use cases, we train four teachers on one specific ethnicity, leading to four highly specialized and biased teachers. Our strategy learns a project of these four teachers into a common space and distill that information to a student network. Our results highlighted increased performance and reduced bias for all our experiments. In addition, we further show that having biased/specialized teachers is crucial by showing that our approach achieves better results than when knowledge is distilled from four teachers trained on balanced datasets. Our approach represents a step forward to the understanding of the importance of ethnicity-specific features.
format Preprint
id arxiv_https___arxiv_org_abs_2408_16563
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle MST-KD: Multiple Specialized Teachers Knowledge Distillation for Fair Face Recognition
Caldeira, Eduarda
Cardoso, Jaime S.
Sequeira, Ana F.
Neto, Pedro C.
Computer Vision and Pattern Recognition
As in school, one teacher to cover all subjects is insufficient to distill equally robust information to a student. Hence, each subject is taught by a highly specialised teacher. Following a similar philosophy, we propose a multiple specialized teacher framework to distill knowledge to a student network. In our approach, directed at face recognition use cases, we train four teachers on one specific ethnicity, leading to four highly specialized and biased teachers. Our strategy learns a project of these four teachers into a common space and distill that information to a student network. Our results highlighted increased performance and reduced bias for all our experiments. In addition, we further show that having biased/specialized teachers is crucial by showing that our approach achieves better results than when knowledge is distilled from four teachers trained on balanced datasets. Our approach represents a step forward to the understanding of the importance of ethnicity-specific features.
title MST-KD: Multiple Specialized Teachers Knowledge Distillation for Fair Face Recognition
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2408.16563