arXiv Statistics ML By Jaebyeong Jeon, Kunwoo Kang, Sang Yup Lee, Kibok Lee

DBCM: Dual-Branch Calibration Module for Test-Time Adaptation in Time Series Forecasting

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The paper introduces DBCM, a Dual-Branch Calibration Module designed for test-time adaptation in time series forecasting. It addresses non‑stationarity by sharing adaptation across channels via a shared adapter, while adding a low‑rank channel‑specific adapter and channel mixing with gated modulation. Experiments demonstrate that DBCM outperforms existing methods across various datasets, horizons, and backbone models.

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