2 papers
cs.LG2026
A Diffusion-Model Subpopulation Digital Twin for Mobile Health Deployment: A Case Study on the HeartSteps Intervention
Ziping Xu, Yuyi Chang, Chenshun Ni +5
Mobile-health interventions increasingly use online learning and decision making algorithms to personalize when to nudge users toward healthier behavior, but a poorly designed algo…
stat.AP2025
Evaluation of the HeartSteps Online Sampling Algorithm
Xiang Meng, Walter Dempsey, Peng Liao +3
Micro-randomized trials (MRTs), which sequentially randomize participants at multiple decision times, have gained prominence in digital intervention development. These sequential r…