Efficient Learning of Deep State Space Models via Importance Smoothing
Latent state space systems are ubiquitous in statistical modelling, arising naturally when time series are observed through noisy measurements. However, training deep state space models (DSSMs) at scale remains difficult. Two largely distinct strategies have emerged for training DSSMs. The first, auto-encoding DSSMs, trains generative models by optimising a variational lower bound. The second backpropagates through the outputs of classical sequential Monte Carlo (SMC) algorithms. Such approaches can train DSSMs for both discriminative and generative tasks, but their inherently sequential forward passes scale poorly on modern hardware. We propose \emph{parallel variational Monte Carlo} (PV...
| Authors | John-Joseph Brady, Nikolas Nusken, Yunpeng Li |
|---|---|
| Primary category | cs.LG |
| Published | 20 May 2026 |
| Last updated at source | 29 May 2026 |
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