2 papers
stat.ML2026
Attack-Resistant Uniform Fairness for Linear and Smooth Contextual Bandits
Qingwen Zhang, Wenjia Wang
Modern systems, such as digital platforms and service systems, increasingly rely on contextual bandits for online decision-making; however, their deployment can inadvertently creat…
stat.ML2026
SPARKLE: A Nonparametric Approach for Online Decision-Making with High-Dimensional Covariates
Wenjia Wang, Qingwen Zhang, Xiaowei Zhang
Personalized services are central to today's digital economy, and their sequential decisions are often modeled as contextual bandits. Modern applications pose two main challenges:…