Introducing Temporal Fusion Transformers for Interpretable Multi-horizon Time Series Forecasting for after-work quants
Lim, Arik, Loeff and Pfister (IJF 2021; arXiv:1912.09363) build TFT for multi-horizon forecasts that mix static covariates, past-observed series, and known-future inputs (calendar, promotions). GRNs + GLU skip unused parts; variable selection names which features matter; LSTM does local processing; interpretable multi-head attention does long range; quantiles 0.1/0.5/0.9. Electricity, Traffic, Favorita, volatility. Plain-language intro. Not investment advice.