Preprint Open access
Training on the Future: A Delay-Aware Audit of Test-Time Adaptation for Time-Series Forecasting
Test-time adaptation (TTA) methods for time-series forecasting update a deployed model, or a small adapter around it, from incoming ground truth. But the label of an $H$-step forecast exists only $H$ steps later, and real data pipelines add further delay. We build a leakage-free harness in which the label of forecast o …