Multi-model time series forecasting platform: SARIMA, LightGBM (SMAPE 12%), and N-BEATS (PyTorch, from scratch). Walk-forward validation across 8 expanding windows. Lag/rolling/Fourier feature engineering. 16 tests.
pythonmachine-learningtime-seriespytorchlightgbmstatsmodelssarimaforecasnbeatswalk-forward-validationretail-forecasting
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Updated
Jul 22, 2026 - Python