@inproceedings{
deng2024groupwise,
title={Group-wise oracle-efficient algorithms for online multi-group learning},
author={Samuel Deng and Jingwen Liu and Daniel Hsu},
booktitle={The Thirty-eighth Annual Conference on Neural Information Processing Systems},
year={2024},
url={https://openreview.net/forum?id=klsyhjLlX5}
}
We study the problem of online multi-group learning, a learning model in which an online learner must simultaneously achieve small prediction regret on a large collection of (possibly overlapping) subsequences corresponding to a family of groups. Groups are subsets of the context space, and in fairness applications, they may correspond to subpopulations defined by expressive functions of demographic attributes. In this paper, we design such oracle-efficient algorithms with sublinear regret under a variety of settings, including: (i) the i.i.d. setting, (ii) the adversarial setting with smoothed context distributions, and (iii) the adversarial transductive setting.
Group-wise oracle-efficient algorithms for online multi-group learning
Samuel Deng Jingwen Liu Daniel Hsu