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stat.ME2026
Adaptive discovery of effect modification in matched observational studies
Yu Gui, Dylan S Small, Zhimei Ren
Understanding effect modification -- how treatment effects vary across subpopulations -- is practically important in observational studies, as it helps identify which subgroups are…
stat.ME2024
Distributionally robust risk evaluation with an isotonic constraint
Yu Gui, Rina Foygel Barber, Cong Ma
Statistical learning under distribution shift is challenging when neither prior knowledge nor fully accessible data from the target distribution is available. Distributionally robu…