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Machine learning algorithms are increasingly deployed in critical domains such as finance, healthcare, and criminal justice [1]. The increasing popularity of algorithmic decision-making has stimulated interest in algorithmic fairness within…

Machine Learning · Computer Science 2025-11-18 Animesh Joshi

Fair predictive algorithms hinge on both equality and trust, yet inherent uncertainty in real-world data challenges our ability to make consistent, fair, and calibrated decisions. While fairly managing predictive error has been extensively…

Machine Learning · Computer Science 2024-10-04 Lucas Rosenblatt , R. Teal Witter

We provide practical, efficient, and nonparametric methods for auditing the fairness of deployed classification and regression models. Whereas previous work relies on a fixed-sample size, our methods are sequential and allow for the…

Machine Learning · Statistics 2025-05-19 Ben Chugg , Santiago Cortes-Gomez , Bryan Wilder , Aaditya Ramdas

Before embarking on data collection, researchers typically compute how many individual observations they should do. This is vital for doing studies with sufficient statistical power, and often a cornerstone in study pre-registrations and…

Methodology · Statistics 2023-09-06 Edwin S Dalmaijer

Understanding and removing bias from the decisions made by machine learning models is essential to avoid discrimination against unprivileged groups. Despite recent progress in algorithmic fairness, there is still no clear answer as to which…

We study fairness in collaborative-filtering recommender systems, which are sensitive to discrimination that exists in historical data. Biased data can lead collaborative-filtering methods to make unfair predictions for users from minority…

Information Retrieval · Computer Science 2017-12-04 Sirui Yao , Bert Huang

Machine learning algorithms are extensively used to make increasingly more consequential decisions about people, so achieving optimal predictive performance can no longer be the only focus. A particularly important consideration is fairness…

Machine Learning · Computer Science 2020-06-09 Giulio Morina , Viktoriia Oliinyk , Julian Waton , Ines Marusic , Konstantinos Georgatzis

Auditing fairness of decision-makers is now in high demand. To respond to this social demand, several fairness auditing tools have been developed. The focus of this study is to raise an awareness of the risk of malicious decision-makers who…

Machine Learning · Statistics 2019-12-02 Kazuto Fukuchi , Satoshi Hara , Takanori Maehara

In this work, we introduce a novel metric for auditing group fairness in ranked lists. Our approach offers two benefits compared to the state of the art. First, we offer a blueprint for modeling of user attention. Rather than assuming a…

Computers and Society · Computer Science 2019-05-14 Piotr Sapiezynski , Wesley Zeng , Ronald E. Robertson , Alan Mislove , Christo Wilson

Fairness is steadily becoming a crucial requirement of Machine Learning (ML) systems. A particularly important notion is subgroup fairness, i.e., fairness in subgroups of individuals that are defined by more than one attributes. Identifying…

Machine Learning · Computer Science 2024-04-30 Giorgos Giannopoulos , Dimitris Sacharidis , Nikolas Theologitis , Loukas Kavouras , Ioannis Emiris

Algorithmic systems increasingly function as epistemic infrastructures that govern the conditions of interpretative access and social belief. Yet, mainstream auditing strategies operationalize fairness primarily in predictive terms - error…

Social and Information Networks · Computer Science 2026-04-27 Camilla Quaresmini , Lisa Piccinin , Valentina Breschi

Ensuring fairness in transaction fraud detection models is vital due to the potential harms and legal implications of biased decision-making. Despite extensive research on algorithmic fairness, there is a notable gap in the study of bias in…

Machine Learning · Computer Science 2024-09-09 Parameswaran Kamalaruban , Yulu Pi , Stuart Burrell , Eleanor Drage , Piotr Skalski , Jason Wong , David Sutton

We present a statistical testing framework to detect if a given machine learning classifier fails to satisfy a wide range of group fairness notions. The proposed test is a flexible, interpretable, and statistically rigorous tool for…

Machine Learning · Statistics 2021-06-03 Nian Si , Karthyek Murthy , Jose Blanchet , Viet Anh Nguyen

We propose an analysis in fair learning that preserves the utility of the data while reducing prediction disparities under the criteria of group sufficiency. We focus on the scenario where the data contains multiple or even many subgroups,…

Machine Learning · Statistics 2022-11-30 Changjian Shui , Gezheng Xu , Qi Chen , Jiaqi Li , Charles Ling , Tal Arbel , Boyu Wang , Christian Gagné

Auditing involves verifying the proper implementation of a given policy. As such, auditing is essential for ensuring compliance with the principles of fairness, equity, and transparency mandated by the European Union's AI Act. Moreover,…

Applications · Statistics 2025-12-04 Valentin Lafargue , Emmanuelle Claeys , Jean-Michel Loubes

Accurately measuring discrimination is crucial to faithfully assessing fairness of trained machine learning (ML) models. Any bias in measuring discrimination leads to either amplification or underestimation of the existing disparity.…

Machine Learning · Computer Science 2025-03-25 Sami Zhioua , Ruta Binkyte , Ayoub Ouni , Farah Barika Ktata

When developing a clinical prediction model, the sample size of the development dataset is a key consideration. Small sample sizes lead to greater concerns of overfitting, instability, poor performance and lack of fairness. Previous…

While there exists a large amount of literature on the general challenges of and best practices for trustworthy online A/B testing, there are limited studies on sample size estimation, which plays a crucial role in trustworthy and efficient…

Methodology · Statistics 2023-08-21 Jing Zhou , Jiannan Lu , Anas Shallah

Unsupervised anomaly detection is a critical task in many high-social-impact applications such as finance, healthcare, social media, and cybersecurity, where demographics involving age, gender, race, disease, etc, are used frequently. In…

Machine Learning · Computer Science 2025-05-19 Feng Xiao , Xiaoying Tang , Jicong Fan

Experimental comparisons of performance represent an important aspect of research on optimization algorithms. In this work we present a methodology for defining the required sample sizes for designing experiments with desired statistical…

Neural and Evolutionary Computing · Computer Science 2018-10-16 Felipe Campelo , Fernanda Takahashi