Fairness Testing: A Comprehensive Survey and Analysis of Trends
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Abstract (arXiv)
Unfair behaviors of Machine Learning (ML) software have garnered increasing attention and concern among software engineers. To tackle this issue, extensive research has been dedicated to conducting fairness testing of ML software, and this paper offers a comprehensive survey of existing studies in this field. We collect 100 papers and organize them based on the testing workflow (i.e., how to test) and testing components (i.e., what to test). Furthermore, we analyze the research focus, trends, and promising directions in the realm of fairness testing. We also identify widely-adopted datasets and open-source tools for fairness testing.
Key facts. Cited by 62 papers in the map (data through 14 Oct 2026). First posted on arXiv 20 Jul 2022.
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Citing papers per year: 2022: 1; 2023: 12; 2024: 17; 2025: 23; 2026: 9.
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- 2024Large Language Model-Based Agents for Software Engineering: A Surveycited by 178
- 2024LLM-Based Multi-Agent Systems for Software Engineering: Literature Review, Vision and the Road Aheadcited by 155
- 2024Black-Box Access is Insufficient for Rigorous AI Auditscited by 126
- 2023A Survey on Intersectional Fairness in Machine Learning: Notions, Mitigation, and Challengescited by 41
- 2023Latent Imitator: Generating Natural Individual Discriminatory Instances for Black-Box Fairness Testingcited by 23
- 2024New Job, New Gender? Measuring the Social Bias in Image Generation Modelscited by 16
- 2023Towards Fair Machine Learning Software: Understanding and Addressing Model Bias Through Counterfactual Thinkingcited by 14
- 2024Fairness Testing of Large Language Models in Role-Playingcited by 11
- 2023"Oops, Did I Just Say That?" Testing and Repairing Unethical Suggestions of Large Language Models with Suggest-Critique-Reflect Processcited by 9
- 2024An AI System Evaluation Framework for Advancing AI Safety: Terminology, Taxonomy, Lifecycle Mappingcited by 8
- 2023Bias Behind the Wheel: Fairness Testing of Autonomous Driving Systemscited by 7
- 2024A Large-Scale Empirical Study on Improving the Fairness of Image Classification Modelscited by 6
38 more
- 2025FairMedQA: Benchmarking Bias in Large Language Models for Medical Question Answeringcited by 6
- 2024Implications of the AI Act for Non-Discrimination Law and Algorithmic Fairnesscited by 5
- 2025FairZK: A Scalable System to Prove Machine Learning Fairness in Zero-Knowledgecited by 5
- 2024Fairness Concerns in App Reviews: A Study on AI-based Mobile Appscited by 4
- 2024A Comprehensive View of the Biases of Toxicity and Sentiment Analysis Methods Towards Utterances with African American English Expressionscited by 4
- 2025Do Existing Testing Tools Really Uncover Gender Bias in Text-to-Image Models?cited by 4
- 2023FairRec: Fairness Testing for Deep Recommender Systemscited by 3
- 2023RAI4IoE: Responsible AI for Enabling the Internet of Energycited by 3
- 2024Diversity Drives Fairness: Ensemble of Higher Order Mutants for Intersectional Fairness of Machine Learning Softwarecited by 3
- 2025Generative AI for Testing of Autonomous Driving Systems: A Surveycited by 3
- 2022Enhanced Fairness Testing via Generating Effective Initial Individual Discriminatory Instancescited by 2
- 2024Mutatis Mutandis: Revisiting the Comparator in Discrimination Testingcited by 2
- 2025Counterfactual Situation Testing: From Single to Multidimensional Discriminationcited by 2
- 2025Measuring Gender Bias in Job Title Matching for Grammatical Gender Languagescited by 2
- 2025A Comprehensive Study of Deep Learning Model Fixing Approachescited by 2
- 2023An Operational Perspective to Fairness Interventions: Where and How to Intervenecited by 1
- 2023Towards Better Fairness-Utility Trade-off: A Comprehensive Measurement-Based Reinforcement Learning Frameworkcited by 1
- 2024Mapping the Potential of Explainable AI for Fairness Along the AI Lifecyclecited by 1
- 2024Unbiasing on the Fly: Explanation-Guided Human Oversight of Machine Learning System Decisionscited by 1
- 2024FAIREDU: A Multiple Regression-Based Method for Enhancing Fairness in Machine Learning Models for Educational Applicationscited by 1
- 2025Software Engineering Principles for Fairer Systems: Experiments with GroupCARTcited by 1
- 2025Intersectional Divergence: Measuring Fairness in Regressioncited by 1
- 2025Fairness-aware Anomaly Detection via Fair Projectioncited by 1
- 2025Software Fairness Dilemma: Is Bias Mitigation a Zero-Sum Game?cited by 1
- 2025Beyond Overall Accuracy: Pose- and Occlusion-driven Fairness Analysis in Pedestrian Detection for Autonomous Drivingcited by 1
- 2025Fairness Testing in Retrieval-Augmented Generation: How Small Perturbations Reveal Bias in Small Language Modelscited by 1
- 2025Causally Perturbed Fairness Testingcited by 1
- 2023Distribution-aware Fairness Test Generationcited by 0
- 2023Fairness Improvement with Multiple Protected Attributes: How Far Are We?cited by 0
- 2023Search-Based Fairness Testing: An Overviewcited by 0
- 2024Fairpriori: Improving Biased Subgroup Discovery for Deep Neural Network Fairnesscited by 0
- 2024Contexts Matter: An Empirical Study on Contextual Influence in Fairness Testing for Deep Learning Systemscited by 0
- 2025Automated Harmfulness Testing for Code Large Language Modelscited by 0
- 2025Whence Is A Model Fair? Fixing Fairness Bugs via Propensity Score Matchingcited by 0
- 2025Testing Individual Fairness in Graph Neural Networkscited by 0
- 2025Benchmarking Stochastic Approximation Algorithms for Fairness-Constrained Training of Deep Neural Networkscited by 0
- 2025FairFLRep: Fairness aware fault localization and repair of Deep Neural Networkscited by 0
- 2025CAF'E: Causal Black-Box Testing of Machine Unlearningcited by 0
50 most cited of 62 All 62 (JSON)
- 2026Provenance Guided Incremental Learning Under Evolving Concept Definitions24 Aug 2026
- 2026Toward Localizing and Repairing Bias in Transformer Attention Heads14 Jul 2026
- 2026Reasoning Beyond Prediction: From Data-Driven to Causal Software Engineering26 Jun 2026
- 2026Provable Fairness Repair for Deep Neural Networks19 May 2026
- 2026Ethics Testing: Proactive Identification of Generative AI System Harms23 Apr 2026
- 2026Intersectional Fairness in Large Language Models22 Apr 2026
- 2026Towards Reliable Testing of Machine Unlearning16 Apr 2026
- 2026A Generalised Exponentiated Gradient Approach to Enhance Fairness in Binary and Multi-class Classification Tasks22 Mar 2026
- 2026SecretFan: Synthesizing Realistic Data without Breaking Privacy5 Feb 2026
- 2025A Comprehensive Study of Deep Learning Model Fixing Approaches26 Dec 2025
- 2025Fairness Is Not Just Ethical: Performance Trade-Off via Data Correlation Tuning to Mitigate Bias in ML Software19 Dec 2025
- 2025A Gray Literature Study on Fairness Requirements in AI-enabled Software Engineering8 Dec 2025
38 more
- 2025Causally Perturbed Fairness Testing21 Oct 2025
- 2025Wasserstein projection distance for fairness testing of regression models5 Oct 2025
- 2025Fairness Testing in Retrieval-Augmented Generation: How Small Perturbations Reveal Bias in Small Language Models30 Sep 2025
- 2025Beyond Overall Accuracy: Pose- and Occlusion-driven Fairness Analysis in Pedestrian Detection for Autonomous Driving30 Sep 2025
- 2025CAF'E: Causal Black-Box Testing of Machine Unlearning20 Sep 2025
- 2025Measuring Gender Bias in Job Title Matching for Grammatical Gender Languages17 Sep 2025
- 2025Generative AI for Testing of Autonomous Driving Systems: A Survey27 Aug 2025
- 2025FairFLRep: Fairness aware fault localization and repair of Deep Neural Networks11 Aug 2025
- 2025Software Fairness Dilemma: Is Bias Mitigation a Zero-Sum Game?5 Aug 2025
- 2025Benchmarking Stochastic Approximation Algorithms for Fairness-Constrained Training of Deep Neural Networks5 Jul 2025
- 2025FairMedQA: Benchmarking Bias in Large Language Models for Medical Question Answering26 May 2025
- 2025Fairness-aware Anomaly Detection via Fair Projection16 May 2025
- 2025FairZK: A Scalable System to Prove Machine Learning Fairness in Zero-Knowledge12 May 2025
- 2025Intersectional Divergence: Measuring Fairness in Regression1 May 2025
- 2025Testing Individual Fairness in Graph Neural Networks25 Apr 2025
- 2025Whence Is A Model Fair? Fixing Fairness Bugs via Propensity Score Matching23 Apr 2025
- 2025Software Engineering Principles for Fairer Systems: Experiments with GroupCART17 Apr 2025
- 2025Automated Harmfulness Testing for Code Large Language Models20 Mar 2025
- 2025Counterfactual Situation Testing: From Single to Multidimensional Discrimination3 Feb 2025
- 2025Do Existing Testing Tools Really Uncover Gender Bias in Text-to-Image Models?27 Jan 2025
- 2024Diversity Drives Fairness: Ensemble of Higher Order Mutants for Intersectional Fairness of Machine Learning Software11 Dec 2024
- 2024Fairness Testing of Large Language Models in Role-Playing1 Nov 2024
- 2024FAIREDU: A Multiple Regression-Based Method for Enhancing Fairness in Machine Learning Models for Educational Applications8 Oct 2024
- 2024Large Language Model-Based Agents for Software Engineering: A Survey4 Sep 2024
- 2024Contexts Matter: An Empirical Study on Contextual Influence in Fairness Testing for Deep Learning Systems12 Aug 2024
- 2024Fairpriori: Improving Biased Subgroup Discovery for Deep Neural Network Fairness25 Jun 2024
- 2024Unbiasing on the Fly: Explanation-Guided Human Oversight of Machine Learning System Decisions25 Jun 2024
- 2024Mutatis Mutandis: Revisiting the Comparator in Discrimination Testing22 May 2024
- 2024Mapping the Potential of Explainable AI for Fairness Along the AI Lifecycle29 Apr 2024
- 2024An AI System Evaluation Framework for Advancing AI Safety: Terminology, Taxonomy, Lifecycle Mapping8 Apr 2024
- 2024LLM-Based Multi-Agent Systems for Software Engineering: Literature Review, Vision and the Road Ahead7 Apr 2024
- 2024Implications of the AI Act for Non-Discrimination Law and Algorithmic Fairness29 Mar 2024
- 2024Black-Box Access is Insufficient for Rigorous AI Audits25 Jan 2024
- 2024A Comprehensive View of the Biases of Toxicity and Sentiment Analysis Methods Towards Utterances with African American English Expressions23 Jan 2024
- 2024Fairness Concerns in App Reviews: A Study on AI-based Mobile Apps16 Jan 2024
- 2024A Large-Scale Empirical Study on Improving the Fairness of Image Classification Models8 Jan 2024
- 2024New Job, New Gender? Measuring the Social Bias in Image Generation Models1 Jan 2024
- 2023Search-Based Fairness Testing: An Overview10 Nov 2023
50 newest of 62 All 62 (JSON)
- 2025Automated Harmfulness Testing for Code Large Language Modelscited by 0
- 2025CAF'E: Causal Black-Box Testing of Machine Unlearningcited by 0
- 2026Towards Reliable Testing of Machine Unlearningcited by 0
- 2026Towards Reliable Testing of Machine Unlearning16 Apr 2026
- 2025CAF'E: Causal Black-Box Testing of Machine Unlearning20 Sep 2025
- 2025Automated Harmfulness Testing for Code Large Language Models20 Mar 2025
- 2024Black-Box Access is Insufficient for Rigorous AI Auditscited by 126
- 2023A Survey on Intersectional Fairness in Machine Learning: Notions, Mitigation, and Challengescited by 41
- 2023Latent Imitator: Generating Natural Individual Discriminatory Instances for Black-Box Fairness Testingcited by 23
- 2024New Job, New Gender? Measuring the Social Bias in Image Generation Modelscited by 16
- 2023Towards Fair Machine Learning Software: Understanding and Addressing Model Bias Through Counterfactual Thinkingcited by 14
- 2024Fairness Testing of Large Language Models in Role-Playingcited by 11
- 2023"Oops, Did I Just Say That?" Testing and Repairing Unethical Suggestions of Large Language Models with Suggest-Critique-Reflect Processcited by 9
- 2024An AI System Evaluation Framework for Advancing AI Safety: Terminology, Taxonomy, Lifecycle Mappingcited by 8
- 2023Bias Behind the Wheel: Fairness Testing of Autonomous Driving Systemscited by 7
- 2024A Large-Scale Empirical Study on Improving the Fairness of Image Classification Modelscited by 6
- 2025FairMedQA: Benchmarking Bias in Large Language Models for Medical Question Answeringcited by 6
- 2024Implications of the AI Act for Non-Discrimination Law and Algorithmic Fairnesscited by 5
12 most cited of 55 All 55 (JSON)
- 2026Provenance Guided Incremental Learning Under Evolving Concept Definitions24 Aug 2026
- 2026Toward Localizing and Repairing Bias in Transformer Attention Heads14 Jul 2026
- 2026Reasoning Beyond Prediction: From Data-Driven to Causal Software Engineering26 Jun 2026
- 2026Provable Fairness Repair for Deep Neural Networks19 May 2026
- 2026Ethics Testing: Proactive Identification of Generative AI System Harms23 Apr 2026
- 2026Intersectional Fairness in Large Language Models22 Apr 2026
- 2026A Generalised Exponentiated Gradient Approach to Enhance Fairness in Binary and Multi-class Classification Tasks22 Mar 2026
- 2026SecretFan: Synthesizing Realistic Data without Breaking Privacy5 Feb 2026
- 2025A Comprehensive Study of Deep Learning Model Fixing Approaches26 Dec 2025
- 2025Fairness Is Not Just Ethical: Performance Trade-Off via Data Correlation Tuning to Mitigate Bias in ML Software19 Dec 2025
- 2025A Gray Literature Study on Fairness Requirements in AI-enabled Software Engineering8 Dec 2025
- 2025Causally Perturbed Fairness Testing21 Oct 2025
12 newest of 55 All 55 (JSON)