2 papers
stat.ME2026
Online Bootstrap Inference for the Trend of Nonstationary Time Series
Thomas Nagler, Tobias Brock, Nicolai Palm
This article proposes an online bootstrap scheme for nonparametric level estimation in nonstationary time series. Our approach applies to a broad class of level estimators expressi…
stat.ML2026
Fast Rates for Nonstationary Weighted Risk Minimization
Tobias Brock, Thomas Nagler
Weighted empirical risk minimization is a common approach to prediction under distribution drift. This article studies its out-of-sample prediction error under nonstationarity. We…