Learning from Yesterday's Error: An Efficient Online Learning Method for Traffic Demand Prediction

• URL: http://arxiv.org/abs/2602.21757v1
• Date: Wed, 25 Feb 2026 10:19:39 GMT
• Title: Learning from Yesterday's Error: An Efficient Online Learning Method for Traffic Demand Prediction
• Authors: Xiannan Huang, Quan Yuan, Chao Yang,
• Abstract summary: FORESEE (Forecasting Online with Residual Smoothing and Ensemble Experts) is a lightweight online adaptation framework that is accurate, robust, and efficient.<n>It corrects today's forecast in each region using yesterday's prediction error, through exponential smoothing guided by a mixture-of-experts mechanism.<n>Experiments on seven real-world datasets with backbone models demonstrate that FORESEE consistently improves prediction accuracy, maintains robustness even when distribution shifts are minimal.
• Score: 6.104967994062357
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Accurately predicting short-term traffic demand is critical for intelligent transportation systems. While deep learning models achieve strong performance under stationary conditions, their accuracy often degrades significantly when faced with distribution shifts caused by external events or evolving urban dynamics. Frequent model retraining to adapt to such changes incurs prohibitive computational costs, especially for large-scale or foundation models. To address this challenge, we propose FORESEE (Forecasting Online with Residual Smoothing and Ensemble Experts), a lightweight online adaptation framework that is accurate, robust, and computationally efficient. FORESEE operates without any parameter updates to the base model. Instead, it corrects today's forecast in each region using yesterday's prediction error, stabilized through exponential smoothing guided by a mixture-of-experts mechanism that adapts to recent error dynamics. Moreover, an adaptive spatiotemporal smoothing component propagates error signals across neighboring regions and time slots, capturing coherent shifts in demand patterns. Extensive experiments on seven real-world datasets with three backbone models demonstrate that FORESEE consistently improves prediction accuracy, maintains robustness even when distribution shifts are minimal (avoiding performance degradation), and achieves the lowest computational overhead among existing online methods. By enabling real-time adaptation of traffic forecasting models with negligible computational cost, FORESEE paves the way for deploying reliable, up-to-date prediction systems in dynamic urban environments. Code and data are available at https://github.com/xiannanhuang/FORESEE

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