Deep Learning-based Approaches for State Space Models: A Selective Review

• URL: http://arxiv.org/abs/2412.11211v1
• Date: Sun, 15 Dec 2024 15:04:35 GMT
• Title: Deep Learning-based Approaches for State Space Models: A Selective Review
• Authors: Jiahe Lin, George Michailidis,
• Abstract summary: State-space models (SSMs) offer a powerful framework for dynamical system analysis. This paper provides a selective review of recent advancements in deep neural network-based approaches for SSMs.
• Score: 15.295157876811066
• License:
• Abstract: State-space models (SSMs) offer a powerful framework for dynamical system analysis, wherein the temporal dynamics of the system are assumed to be captured through the evolution of the latent states, which govern the values of the observations. This paper provides a selective review of recent advancements in deep neural network-based approaches for SSMs, and presents a unified perspective for discrete time deep state space models and continuous time ones such as latent neural Ordinary Differential and Stochastic Differential Equations. It starts with an overview of the classical maximum likelihood based approach for learning SSMs, reviews variational autoencoder as a general learning pipeline for neural network-based approaches in the presence of latent variables, and discusses in detail representative deep learning models that fall under the SSM framework. Very recent developments, where SSMs are used as standalone architectural modules for improving efficiency in sequence modeling, are also examined. Finally, examples involving mixed frequency and irregularly-spaced time series data are presented to demonstrate the advantage of SSMs in these settings.

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