BM-CL: Bias Mitigation through the lens of Continual Learning

Fuente: arXiv
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Autores principales: Mansilla, Lucas, Echeveste, Rodrigo, Gonzalez, Camila, Milone, Diego H., Ferrante, Enzo
Formato: Preprint
Publicado: 2025
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author Mansilla, Lucas
Echeveste, Rodrigo
Gonzalez, Camila
Milone, Diego H.
Ferrante, Enzo
author_facet Mansilla, Lucas
Echeveste, Rodrigo
Gonzalez, Camila
Milone, Diego H.
Ferrante, Enzo
contents Biases in machine learning pose significant challenges, particularly when models amplify disparities that affect disadvantaged groups. Traditional bias mitigation techniques often lead to a {\itshape leveling-down effect}, whereby improving outcomes of disadvantaged groups comes at the expense of reduced performance for advantaged groups. This study introduces Bias Mitigation through Continual Learning (BM-CL), a novel framework that leverages the principles of continual learning to address this trade-off. We postulate that mitigating bias is conceptually similar to domain-incremental continual learning, where the model must adjust to changing fairness conditions, improving outcomes for disadvantaged groups without forgetting the knowledge that benefits advantaged groups. Drawing inspiration from techniques such as Learning without Forgetting and Elastic Weight Consolidation, we reinterpret bias mitigation as a continual learning problem. This perspective allows models to incrementally balance fairness objectives, enhancing outcomes for disadvantaged groups while preserving performance for advantaged groups. Experiments on synthetic and real-world image datasets, characterized by diverse sources of bias, demonstrate that the proposed framework mitigates biases while minimizing the loss of original knowledge. Our approach bridges the fields of fairness and continual learning, offering a promising pathway for developing machine learning systems that are both equitable and effective.
format Preprint
id arxiv_https___arxiv_org_abs_2509_01730
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle BM-CL: Bias Mitigation through the lens of Continual Learning
Mansilla, Lucas
Echeveste, Rodrigo
Gonzalez, Camila
Milone, Diego H.
Ferrante, Enzo
Machine Learning
Computer Vision and Pattern Recognition
Biases in machine learning pose significant challenges, particularly when models amplify disparities that affect disadvantaged groups. Traditional bias mitigation techniques often lead to a {\itshape leveling-down effect}, whereby improving outcomes of disadvantaged groups comes at the expense of reduced performance for advantaged groups. This study introduces Bias Mitigation through Continual Learning (BM-CL), a novel framework that leverages the principles of continual learning to address this trade-off. We postulate that mitigating bias is conceptually similar to domain-incremental continual learning, where the model must adjust to changing fairness conditions, improving outcomes for disadvantaged groups without forgetting the knowledge that benefits advantaged groups. Drawing inspiration from techniques such as Learning without Forgetting and Elastic Weight Consolidation, we reinterpret bias mitigation as a continual learning problem. This perspective allows models to incrementally balance fairness objectives, enhancing outcomes for disadvantaged groups while preserving performance for advantaged groups. Experiments on synthetic and real-world image datasets, characterized by diverse sources of bias, demonstrate that the proposed framework mitigates biases while minimizing the loss of original knowledge. Our approach bridges the fields of fairness and continual learning, offering a promising pathway for developing machine learning systems that are both equitable and effective.
title BM-CL: Bias Mitigation through the lens of Continual Learning
topic Machine Learning
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2509.01730