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math.ST2025
Optimal Nuisance Function Tuning for Estimating a Doubly Robust Functional under Proportional Asymptotics
Sean McGrath, Debarghya Mukherjee, Rajarshi Mukherjee +1
In this paper, we explore the asymptotically optimal tuning parameter choice in ridge regression for estimating nuisance functions of a statistical functional that has recently gai…
math.ST2025
Phase Transition in Nonparametric Minimax Rates for Covariate Shifts on Approximate Manifolds
Yuyao Wang, Nabarun Deb, Debarghya Mukherjee
We study nonparametric regression under covariate shift with structured data, where a small amount of labeled target data is supplemented by a large labeled source dataset. In many…