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Rapid Bayesian identification of sparse nonlinear dynamics from scarce and noisy data
Feb. 26, 2024, 5:45 a.m. | Lloyd Fung, Urban Fasel, Matthew P. Juniper
stat.ML updates on arXiv.org arxiv.org
Abstract: We propose a fast probabilistic framework for identifying differential equations governing the dynamics of observed data. We recast the SINDy method within a Bayesian framework and use Gaussian approximations for the prior and likelihood to speed up computation. The resulting method, Bayesian-SINDy, not only quantifies uncertainty in the parameters estimated but also is more robust when learning the correct model from limited and noisy data. Using both synthetic and real-life examples such as Lynx-Hare population …
abstract arxiv bayesian computation data differential dynamics framework identification likelihood nlin.cd prior speed stat.me stat.ml type
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