arXiv Machine Learning By Cristian Brugnara, Lea Multerer, Marco Forgione, Laura Azzimonti

Learning Dynamical Systems from Multiple Sparse Datasets: A Hierarchical Bayesian Modeling Approach

Read the original on arXiv Machine Learning →

arXiv:2606. 24966v1 Announce Type: new Abstract: Estimating parameters of dynamical systems from sparse, noisy, and irregularly sampled data is often severely ill-conditioned.

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arXiv Machine Learning
Sep 4

Active learning for data-driven reduced models of parametric differential systems with Bayesian operator inference

The paper presents an active learning framework that enhances data-driven reduced-order models (ROMs) for parametric dynamical systems by intelligently selecting training parameters. Using a Bayesian linear regression version of operator inference, the method quantifies prediction uncertainty to guide sequential adaptive sampling, aiming to improve ROM stability and accuracy across the parameter domain. Numerical experiments on nonlinear PDE systems show that this adaptive strategy outperforms random sampling under the same computational budget.

By Shane A. McQuarrie, Mengwu Guo, Anirban Chaudhuri