In-Processing Modeling Techniques for Machine Learning Fairness: A Survey

Mingyang Wan

doi:10.1145/3551390

In-Processing Modeling Techniques for Machine Learning Fairness: A Survey

2023-03-20

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DOI：10.1145/3551390

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Abstract

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Machine learning models are becoming pervasive in high-stakes applications. Despite their clear benefits in terms of performance, the models could show discrimination against minority groups and result in fairness issues in a decision-making process, leading to severe negative impacts on the individuals and the society. In recent years, various techniques have been developed to mitigate the unfairness for machine learning models. Among them, in-processing methods have drawn increasing attention from the community, where fairness is directly taken into consideration during model design to induce intrinsically fair models and fundamentally mitigate fairness issues in outputs and representations. In this survey, we review the current progress of inprocessing fairness mitigation techniques. Based onwhere the fairness is achieved in the model, we categorize them into explicit and implicit methods, where the former directly incorporates fairness metrics in training objectives, and the latter focuses on refining latent representation learning. Finally, we conclude the survey with a discussion of the research challenges in this community to motivate future exploration.

Keywords:

Machine learning fairness

bias mitigation

disparate impact

disparate

treatment

In-Processing Modeling Techniques for Machine Learning Fairness: A Survey

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