Towards Reducing Biases in Combining Multiple Experts Online
Towards Reducing Biases in Combining Multiple Experts Online
Yi Sun, Iván Ramírez Díaz, Alfredo Cuesta Infante, Kalyan Veeramachaneni
Proceedings of the Thirtieth International Joint Conference on Artificial Intelligence
Main Track. Pages 3024-3030.
https://doi.org/10.24963/ijcai.2021/416
In many real life situations, including job and loan applications, gatekeepers must make justified and fair real-time decisions about a person’s fitness for a particular opportunity. In this paper, we aim to accomplish approximate group fairness in an online stochastic decision-making process, where the fairness metric we consider is equalized odds. Our work follows from the classical learning-from-experts scheme, assuming a finite set of classifiers (human experts, rules, options, etc) that cannot be modified. We run separate instances of the algorithm for each label class as well as sensitive groups, where the probability of choosing each instance is optimized for both fairness and regret. Our theoretical results show that approximately equalized odds can be achieved without sacrificing much regret. We also demonstrate the performance of the algorithm on real data sets commonly used by the fairness community.
Keywords:
Machine Learning: Online Learning
AI Ethics, Trust, Fairness: Fairness