W4S4 initializes S4 state space models with WaLRUS wavelet frames and reports better delay reconstruction and classification accuracy than HiPPO-based S4, with frozen (A,B).
Scinet: Time series modeling and forecasting with sample convolution and interaction.Advances in Neural Information Processing Systems , 35:5816–5828, 2022
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W4S4: WaLRUS Meets S4 for Long-Range Sequence Modeling
W4S4 initializes S4 state space models with WaLRUS wavelet frames and reports better delay reconstruction and classification accuracy than HiPPO-based S4, with frozen (A,B).