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Pregledajte izabrane metode jednu pored druge; redovi koji se razlikuju su istaknuti.
| Pyraformer× | Informer× | Reformer: Efikasan Transformer za duge sekvence× | |
|---|---|---|---|
| Oblast | Duboko učenje | Duboko učenje | Duboko učenje |
| Porodica | Machine learning | Machine learning | Machine learning |
| Godina nastanka≠ | 2022 | 2021 | 2020 |
| Tvorac≠ | Shizhan Liu et al. | Zhou, H. et al. | Nikita Kitaev, Łukasz Kaiser & Anselm Levskaya |
| Tip≠ | Pyramidal self-attention transformer for time-series forecasting | Transformer (ProbSparse self-attention) | Memory-efficient attention-based sequence model |
| Temeljni izvor≠ | Liu, S., Yu, H., Liao, C., Li, J., Lin, W., Liu, A. X., & Dustdar, S. (2022). Pyraformer: Low-complexity pyramidal attention for long-range time series modeling and forecasting. ICLR. link ↗ | Zhou, H. et al. (2021). Informer: Beyond Efficient Transformer for Long Sequence Time-Series Forecasting. AAAI. DOI ↗ | Kitaev, N., Kaiser, Ł., & Levskaya, A. (2020). Reformer: The efficient transformer. ICLR. link ↗ |
| Drugi nazivi≠ | Pyramidal Attention Transformer, Pyraformer Transformer, Piramit Dikkat Dönüştürücüsü, Low-Complexity Transformer | Informer — Uzun Dizi Transformer Tahmini, Informer transformer, ProbSparse attention forecaster | Efficient Transformer, LSH Transformer, Locality-Sensitive Hashing Transformer, Verimli Dönüştürücü |
| Srodne≠ | 3 | 5 | 2 |
| Sažetak≠ | Pyraformer is a Transformer-based model for long-range time-series forecasting introduced by Liu et al. at ICLR 2022. Its central innovation is a Pyramidal Attention Module (PAM) that organizes tokens into a multi-resolution hierarchy, enabling the model to capture temporal dependencies across multiple scales while keeping time and memory complexity at O(L log L) rather than the quadratic cost of vanilla self-attention. | Informer is a Transformer-based model introduced by Zhou et al. in 2021 for long-sequence time-series forecasting, using a ProbSparse self-attention mechanism that lowers the computational complexity of the standard Transformer to O(L log L). It is built for problems that demand predictions across thousands of future steps. | The Reformer is an efficient variant of the Transformer architecture introduced by Kitaev, Kaiser, and Levskaya at ICLR 2020. It addresses the prohibitive O(L²) memory and computational cost of standard self-attention for long sequences. The key innovations are locality-sensitive hashing (LSH) attention, which approximates full attention in O(L log L) time, and reversible residual layers that dramatically reduce activation memory during training. |
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