4 papers
Attack-Resistant Uniform Fairness for Linear and Smooth Contextual Bandits
Qingwen Zhang, Wenjia Wang
Modern digital platforms use contextual bandits to allocate valuable exposure and opportunities among competing participants. Fair treatment is therefore an important concern, yet…
Symmetry-Driven Asynchronous Forwarding for Reliable Distributed Coordination in Toroidal Networks
Shenshen Luan, Yumo Tian, Xinyu Zhang +4
The proliferation of large-scale distributed systems, such as satellite constellations and high-performance computing clusters, demands robust communication primitives that maintai…
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:…
Sobolev Calibration of Imperfect Computer Models
Qingwen Zhang, Wenjia Wang
Calibration refers to the statistical estimation of unknown model parameters in computer experiments, such that computer experiments can match underlying physical systems. This wor…