So sánh phương pháp

	Autoformer: Biến đổi phân tách cho dự báo chuỗi thời gian dài hạn	ETS: Error, Trend, Seasonal Exponential Smoothing
Lĩnh vực	Học sâu	Kinh tế lượng
Họ	Machine learning	Regression model
Năm ra đời	2021	2008
Người khởi xướng	Haixu Wu et al. (Tsinghua)	Hyndman, Koehler, Ord & Snyder (state space framework)
Loại	Decomposition-based deep forecasting model	Exponential smoothing state space model
Công trình gốc	Wu, H., Xu, J., Wang, J., & Long, M. (2021). Autoformer: Decomposition transformers with auto-correlation for long-term series forecasting. NeurIPS, 34.	Hyndman, R. J., Koehler, A. B., Ord, J. K. & Snyder, R. D. (2008). Forecasting with Exponential Smoothing: The State Space Approach. Springer.
Tên gọi khác	Auto-Correlation Transformer, Decomposition Transformer, Series Decomposition Forecaster, Oto-Korelasyon Ayrışım Transformer	exponential smoothing state space model, innovations state space model, Holt-Winters family, ETS — Hata/Trend/Mevsimsellik Üstel Düzleştirme
Liên quan	4	5
Tóm tắt	Autoformer is a deep learning architecture for long-term time-series forecasting, introduced by Wu et al. from Tsinghua University at NeurIPS 2021. It replaces the standard self-attention mechanism with an Auto-Correlation mechanism that exploits periodic dependencies in the frequency domain, and embeds a progressive series decomposition block throughout the encoder and decoder to separately model trend and seasonal components.	ETS is a comprehensive exponential smoothing framework that automatically selects additive or multiplicative combinations of the error (E), trend (T) and seasonal (S) components of a time series. Formalised as an innovations state space model by Hyndman, Koehler, Ord and Snyder in 2008, it unifies and generalises the Holt-Winters family of forecasting methods.