Doubly-Regressing Approach for Subgroup Fairness
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866917224449572864 |
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| author | Kim, Kunwoong Lee, Kyungseon Lee, Jihu Yang, Dongyoon Kim, Yongdai |
| author_facet | Kim, Kunwoong Lee, Kyungseon Lee, Jihu Yang, Dongyoon Kim, Yongdai |
| contents | Algorithmic fairness is a socially crucial topic in real-world applications of AI.
Among many notions of fairness, subgroup fairness is widely studied when multiple sensitive attributes (e.g., gender, race, age) are present.
However, as the number of sensitive attributes grows, the number of subgroups increases accordingly, creating heavy computational burdens and data sparsity problem (subgroups with too small sizes).
In this paper, we develop a novel learning algorithm for subgroup fairness which resolves these issues by focusing on subgroups with sufficient sample sizes as well as marginal fairness (fairness for each sensitive attribute).
To this end, we formalize a notion of subgroup-subset fairness and introduce a corresponding distributional fairness measure called the supremum Integral Probability Metric (supIPM).
Building on this formulation, we propose the Doubly Regressing Adversarial learning for subgroup Fairness (DRAF) algorithm, which reduces a surrogate fairness gap for supIPM with much less computation than directly reducing supIPM.
Theoretically, we prove that the proposed surrogate fairness gap is an upper bound of supIPM.
Empirically, we show that the DRAF algorithm outperforms baseline methods in benchmark datasets, specifically when the number of sensitive attributes is large so that many subgroups are very small. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_21091 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Doubly-Regressing Approach for Subgroup Fairness Kim, Kunwoong Lee, Kyungseon Lee, Jihu Yang, Dongyoon Kim, Yongdai Machine Learning Methodology Algorithmic fairness is a socially crucial topic in real-world applications of AI. Among many notions of fairness, subgroup fairness is widely studied when multiple sensitive attributes (e.g., gender, race, age) are present. However, as the number of sensitive attributes grows, the number of subgroups increases accordingly, creating heavy computational burdens and data sparsity problem (subgroups with too small sizes). In this paper, we develop a novel learning algorithm for subgroup fairness which resolves these issues by focusing on subgroups with sufficient sample sizes as well as marginal fairness (fairness for each sensitive attribute). To this end, we formalize a notion of subgroup-subset fairness and introduce a corresponding distributional fairness measure called the supremum Integral Probability Metric (supIPM). Building on this formulation, we propose the Doubly Regressing Adversarial learning for subgroup Fairness (DRAF) algorithm, which reduces a surrogate fairness gap for supIPM with much less computation than directly reducing supIPM. Theoretically, we prove that the proposed surrogate fairness gap is an upper bound of supIPM. Empirically, we show that the DRAF algorithm outperforms baseline methods in benchmark datasets, specifically when the number of sensitive attributes is large so that many subgroups are very small. |
| title | Doubly-Regressing Approach for Subgroup Fairness |
| topic | Machine Learning Methodology |
| url | https://arxiv.org/abs/2510.21091 |