The Spectrum Is Not Enough: When Context Helps Time-Series Forecasting
By Mert Onur Cakiroglu · Paper · cs.LG
A growing family of indices scores how predictable a series is from its spectrum. Practitioners increasingly read these scores as answering a different question: whether \emph{adding context}, a longer lookback, a retrieval plug-in, or a pretrained model, will help. These are not