This question evaluates proficiency in multi-step time-series forecasting, including data preparation with missing values and exogenous covariates, model architecture selection, implementation of training and windowing pipelines in PyTorch, and evaluation strategies such as backtesting and time-aware validation.
You are given one or more regularly sampled numeric time series and optional exogenous covariates (calendar features, prices of related assets, etc.). The goal is to forecast the next H time steps.
Assume:
Design and implement an end-to-end forecasting solution:
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