A Reductions Approach to Fair Classification
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Abstract (arXiv)
We present a systematic approach for achieving fairness in a binary classification setting. While we focus on two well-known quantitative definitions of fairness, our approach encompasses many other previously studied definitions as special cases. The key idea is to reduce fair classification to a sequence of cost-sensitive classification problems, whose solutions yield a randomized classifier with the lowest (empirical) error subject to the desired constraints. We introduce two reductions that work for any representation of the cost-sensitive classifier and compare favorably to prior baselines on a variety of data sets, while overcoming several of their disadvantages.
Key facts. Cited by 585 papers in the map (data through 7 Oct 2026). First posted on arXiv 6 Mar 2018.
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Citing papers per year: 2021: 110; 2022: 137; 2023: 112; 2024: 80; 2025: 83; 2026: 63.
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- 2023Capabilities of GPT-4 on Medical Challenge Problemscited by 630
- 2021Just Train Twice: Improving Group Robustness without Training Group Informationcited by 522
- 2021Retiring Adult: New Datasets for Fair Machine Learningcited by 443
- 2021Towards Out-Of-Distribution Generalization: A Surveycited by 431
- 2022Last Layer Re-Training is Sufficient for Robustness to Spurious Correlationscited by 379
- 2021A survey on datasets for fairness-aware machine learningcited by 157
- 2022LIFT: Language-Interfaced Fine-Tuning for Non-Language Machine Learning Taskscited by 146
- 2022On Feature Learning in the Presence of Spurious Correlationscited by 145
- 2022Bias Mitigation for Machine Learning Classifiers: A Comprehensive Surveycited by 125
- 2021Data Collection and Quality Challenges in Deep Learning: A Data-Centric AI Perspectivecited by 116
- 2022Jury Learning: Integrating Dissenting Voices into Machine Learning Modelscited by 115
- 2021Fair Mixup: Fairness via Interpolationcited by 109
38 more
- 2021EDITS: Modeling and Mitigating Data Bias for Graph Neural Networkscited by 92
- 2021Are Gender-Neutral Queries Really Gender-Neutral? Mitigating Gender Bias in Image Searchcited by 90
- 2021User-oriented Fairness in Recommendationcited by 75
- 2023Fairlearn: Assessing and Improving Fairness of AI Systemscited by 74
- 2024FairCLIP: Harnessing Fairness in Vision-Language Learningcited by 69
- 2021Characterizing Fairness Over the Set of Good Models Under Selective Labelscited by 65
- 2021Fair Feature Distillation for Visual Recognitioncited by 59
- 2022Towards Intersectionality in Machine Learning: Including More Identities, Handling Underrepresentation, and Performing Evaluationcited by 59
- 2022Leveling Down in Computer Vision: Pareto Inefficiencies in Fair Deep Classifierscited by 53
- 2021Hatemoji: A Test Suite and Adversarially-Generated Dataset for Benchmarking and Detecting Emoji-based Hatecited by 50
- 2021Sample Selection for Fair and Robust Trainingcited by 48
- 2022Differential Privacy and Fairness in Decisions and Learning Tasks: A Surveycited by 47
- 2022Diagnosing failures of fairness transfer across distribution shift in real-world medical settingscited by 45
- 2021Fairness of Exposure in Stochastic Banditscited by 42
- 2021Constrained Learning with Non-Convex Lossescited by 42
- 2022The Road to Explainability is Paved with Bias: Measuring the Fairness of Explanationscited by 41
- 2023A Survey on Intersectional Fairness in Machine Learning: Notions, Mitigation, and Challengescited by 41
- 2021Learning Fair Classifiers with Partially Annotated Group Labelscited by 40
- 2021Personalized Counterfactual Fairness in Recommendationcited by 38
- 2021Enforcing fairness in private federated learning via the modified method of differential multiplierscited by 38
- 2022Achieving Fairness at No Utility Cost via Data Reweighing with Influencecited by 38
- 2021Disembodied Machine Learning: On the Illusion of Objectivity in NLPcited by 37
- 2022Representation Bias in Data: A Survey on Identification and Resolution Techniquescited by 37
- 2024CLIP the Bias: How Useful is Balancing Data in Multimodal Learning?cited by 35
- 2021Understanding and Improving Fairness-Accuracy Trade-offs in Multi-Task Learningcited by 34
- 2021Selective Regression Under Fairness Criteriacited by 34
- 2022Fairness Reprogrammingcited by 33
- 2021Stateful Strategic Regressioncited by 32
- 2021TFROM: A Two-sided Fairness-Aware Recommendation Model for Both Customers and Providerscited by 31
- 2023Harvard Glaucoma Fairness: A Retinal Nerve Disease Dataset for Fairness Learning and Fair Identity Normalizationcited by 31
- 2024Touchstone Benchmark: Are We on the Right Way for Evaluating AI Algorithms for Medical Segmentation?cited by 31
- 2022Contextual Bandits with Packing and Covering Constraints: A Modular Lagrangian Approach via Regressioncited by 30
- 2022Fairness-aware Configuration of Machine Learning Librariescited by 28
- 2021Classification with abstention but without disparitiescited by 27
- 2022Active Fairness Auditingcited by 27
- 2022Understanding Instance-Level Impact of Fairness Constraintscited by 27
- 2021A Stochastic Optimization Framework for Fair Risk Minimizationcited by 26
- 2021Simple and near-optimal algorithms for hidden stratification and multi-group learningcited by 26
50 most cited of 585 All 585 (JSON)
- 2026A Comprehensive View of Fairness through Distributional Stability29 Sep 2026
- 2026Decentralized Optimization with Cross-Coupled Mixed Affine Constraints26 Sep 2026
- 2026A Framework for Identifying, Categorizing, and Explaining Bias in AI-Generated Code25 Sep 2026
- 2026Nous: Learning and Certifying Memory Decisions Before Source Calibration8 Sep 2026
- 2026Fairness in multi-class multi-group classification problems via contextial coherent risk measures31 Aug 2026
- 2026Fairness Invariants: A Relational Approach to Explaining and Mitigating Fairness Bugs26 Aug 2026
- 2026FRAME: Separating sampling variation from performance disparities in medical image analysis26 Aug 2026
- 2026Controlling for Omitted Variable Bias in Deep Neural Networks26 Aug 2026
- 2026textttfindr: Transparent and Fair Credit Risk Decisions through Semi-Structured Regressions25 Aug 2026
- 2026Training Fair Tabular Foundation Models14 Aug 2026
- 2026Beyond Binary: Continuous State Optimization with Graph-Structured Objectives10 Aug 2026
- 2026Fairness Auditing: Lower Bounds on Company Manipulation1 Aug 2026
38 more
- 2026Inference-Time Policy Alignment for Fair Reinforcement Learning31 Jul 2026
- 2026FairDiffuseVQVAE: Sampling-Time Fairness in Tabular Diffusion via Conditional Refinement of Vector-Quantized Latents31 Jul 2026
- 2026COVAriance-Induced Fairness Gap Penalty for Subgroup-Fair Clustering20 Jul 2026
- 2026Auditing Fairness-Privacy Trade-offs: Subpopulation-Level Effects of Fairness-Enhancing Algorithms16 Jul 2026
- 2026FairSelect: A Systematic Evaluation of Multi-Level and Intersectional Algorithmic Fairness9 Jul 2026
- 2026Where to Intervene? Benchmarking Fairness-Aware Learning on Differentially Private Synthetic Tabular Data8 Jul 2026
- 2026AIFS-SUBS: Extending Data-Driven Forecasting to Sub-Seasonal Timescales6 Jul 2026
- 2026Sequential Fairness Auditing with Limited Output Access29 Jun 2026
- 2026FairBED: A Bayesian Experimental Design Approach to Gathering Fairer Data22 Jun 2026
- 2026Learning Fair Pareto-Optimal Policies in Multi-Objective Reinforcement Learning16 Jun 2026
- 2026No-Free-Fairness: Fundamental Limits and Trade-offs in Learning Systems16 Jun 2026
- 2026α-Fair Insurance Pricing: A Fairness Continuum12 Jun 2026
- 2026Residual-Controlled Multiplier Learning for Stochastic Constrained Decision-Making5 Jun 2026
- 2026Demystifying the Optimal Fair Classifier in Multi-Class Classification30 May 2026
- 2026Stay Fair! Ensuring Group Fairness in Diffusion Models Across Guidance Scales27 May 2026
- 2026Energy Shields for Fairness24 May 2026
- 2026A Two-Phase Adaptive Balanced Penalty Method for Controllable Pareto Front Learning under Split Feasibility Conditions19 May 2026
- 2026Stochastic Compositional Optimization via Hybrid Momentum Frank--Wolfe14 May 2026
- 2026GESD: Beyond Outcome-Oriented Fairness14 May 2026
- 2026Do Fair Models Reason Fairly? Counterfactual Explanation Consistency for Procedural Fairness in Credit Decisions12 May 2026
- 2026The Pok'emon Theorem and other Fairness Impossibility Results9 May 2026
- 2026FairEnc: A Fair Vision-Language Model with Fair Vision and Text Encoders for Glaucoma Detection6 May 2026
- 2026When Prompts Interact: Assessing Prompt Arithmetic for Deconfounding under Distribution Shift4 May 2026
- 2026Where Do Prompt Perturbations Break Generation? A Segment-Level View of Robustness in LoRA-Tuned Language Models2 May 2026
- 2026Near-Optimal Cryptographic Hardness of Learning With Homogeneous Halfspaces Under Gaussian Marginals29 Apr 2026
- 2026Efficient and Interpretable Transformer for Counterfactual Fairness29 Apr 2026
- 2026FairNVT: Fair Classification via Noise Injection in Vision Transformers18 Apr 2026
- 2026Fairness Constraints in High-Dimensional Generalized Linear Models17 Apr 2026
- 2026First-See-Then-Design: A Multi-Stakeholder View for Optimal Performance-Fairness Trade-Offs15 Apr 2026
- 2026CAFP: A Post-Processing Framework for Group Fairness via Counterfactual Model Averaging8 Apr 2026
- 2026An Improved Last-Iterate Convergence Rate for Anchored Gradient Descent Ascent4 Apr 2026
- 2026Investigating Data Interventions for Subgroup Fairness: An ICU Case Study3 Apr 2026
- 2026Fair regression under localized demographic parity constraints26 Mar 2026
- 2026A Generalised Exponentiated Gradient Approach to Enhance Fairness in Binary and Multi-class Classification Tasks22 Mar 2026
- 2026A Model Ensemble-Based Post-Processing Framework for Fairness-Aware Prediction19 Mar 2026
- 2026Procedural Fairness via Group Counterfactual Explanation11 Mar 2026
- 2026Position: LLMs Must Use Functor-Based and RAG-Driven Bias Mitigation for Fairness7 Mar 2026
- 2026JANUS: Structured Bidirectional Generation for Guaranteed Constraints and Analytical Uncertainty4 Mar 2026
50 newest of 585 All 585 (JSON)
- 2023Fair Machine Unlearning: Data Removal while Mitigating Disparitiescited by 25
- 2024Federated Unlearning: a Perspective of Stability and Fairnesscited by 7
- 2023When Fairness Meets Privacy: Exploring Privacy Threats in Fair Binary Classifiers via Membership Inference Attackscited by 5
- 2025Fairness-Aware Low-Rank Representation Fine-Tuningcited by 0
- 2025Adversarial Bias: Data Poisoning Attacks on Fairnesscited by 0
- 2025Adversarial Bias: Data Poisoning Attacks on Fairness11 Nov 2025
- 2025Fairness-Aware Low-Rank Representation Fine-Tuning7 Mar 2025
- 2024Federated Unlearning: a Perspective of Stability and Fairness2 Feb 2024
- 2023When Fairness Meets Privacy: Exploring Privacy Threats in Fair Binary Classifiers via Membership Inference Attacks7 Nov 2023
- 2023Fair Machine Unlearning: Data Removal while Mitigating Disparities27 Jul 2023
- 2024The Impact of Inference Acceleration on Bias of LLMscited by 9
- 2024The Impact of Inference Acceleration on Bias of LLMs29 Oct 2024
- 2022FEAMOE: Fair, Explainable and Adaptive Mixture of Experts10 Oct 2022
- 2023Capabilities of GPT-4 on Medical Challenge Problemscited by 630
- 2021Just Train Twice: Improving Group Robustness without Training Group Informationcited by 522
- 2021Retiring Adult: New Datasets for Fair Machine Learningcited by 443
- 2021Towards Out-Of-Distribution Generalization: A Surveycited by 431
- 2022Last Layer Re-Training is Sufficient for Robustness to Spurious Correlationscited by 379
- 2021A survey on datasets for fairness-aware machine learningcited by 157
- 2022LIFT: Language-Interfaced Fine-Tuning for Non-Language Machine Learning Taskscited by 146
- 2022On Feature Learning in the Presence of Spurious Correlationscited by 145
- 2022Bias Mitigation for Machine Learning Classifiers: A Comprehensive Surveycited by 125
- 2021Data Collection and Quality Challenges in Deep Learning: A Data-Centric AI Perspectivecited by 116
- 2022Jury Learning: Integrating Dissenting Voices into Machine Learning Modelscited by 115
- 2021Fair Mixup: Fairness via Interpolationcited by 109
12 most cited of 572 All 572 (JSON)
- 2026A Comprehensive View of Fairness through Distributional Stability29 Sep 2026
- 2026Decentralized Optimization with Cross-Coupled Mixed Affine Constraints26 Sep 2026
- 2026A Framework for Identifying, Categorizing, and Explaining Bias in AI-Generated Code25 Sep 2026
- 2026Nous: Learning and Certifying Memory Decisions Before Source Calibration8 Sep 2026
- 2026Fairness in multi-class multi-group classification problems via contextial coherent risk measures31 Aug 2026
- 2026Fairness Invariants: A Relational Approach to Explaining and Mitigating Fairness Bugs26 Aug 2026
- 2026FRAME: Separating sampling variation from performance disparities in medical image analysis26 Aug 2026
- 2026Controlling for Omitted Variable Bias in Deep Neural Networks26 Aug 2026
- 2026textttfindr: Transparent and Fair Credit Risk Decisions through Semi-Structured Regressions25 Aug 2026
- 2026Training Fair Tabular Foundation Models14 Aug 2026
- 2026Beyond Binary: Continuous State Optimization with Graph-Structured Objectives10 Aug 2026
- 2026Fairness Auditing: Lower Bounds on Company Manipulation1 Aug 2026
12 newest of 572 All 572 (JSON)