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Long-term Forecasting with TiDE: Time-series Dense Encoder

2023-04-17Code Available5· sign in to hype

Abhimanyu Das, Weihao Kong, Andrew Leach, Shaan Mathur, Rajat Sen, Rose Yu

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Abstract

Recent work has shown that simple linear models can outperform several Transformer based approaches in long term time-series forecasting. Motivated by this, we propose a Multi-layer Perceptron (MLP) based encoder-decoder model, Time-series Dense Encoder (TiDE), for long-term time-series forecasting that enjoys the simplicity and speed of linear models while also being able to handle covariates and non-linear dependencies. Theoretically, we prove that the simplest linear analogue of our model can achieve near optimal error rate for linear dynamical systems (LDS) under some assumptions. Empirically, we show that our method can match or outperform prior approaches on popular long-term time-series forecasting benchmarks while being 5-10x faster than the best Transformer based model.

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Benchmark Results

DatasetModelMetricClaimedVerifiedStatus
ETTh1 (192) MultivariateTiDEMSE0.41Unverified
ETTh1 (336) MultivariateTiDEMSE0.44Unverified
ETTh1 (720) MultivariateTiDEMSE0.45Unverified
ETTh1 (96) MultivariateTiDEMSE0.38Unverified
ETTh2 (192) MultivariateTiDEMSE0.33Unverified
ETTh2 (336) MultivariateTiDEMSE0.36Unverified
ETTh2 (720) MultivariateTiDEMSE0.42Unverified
ETTh2 (96) MultivariateTiDEMSE0.27Unverified

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