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Stable Linear Subspace Identification: A Machine Learning Approach
March 27, 2024, 4:43 a.m. | Loris Di Natale, Muhammad Zakwan, Bratislav Svetozarevic, Philipp Heer, Giancarlo Ferrari-Trecate, Colin N. Jones
cs.LG updates on arXiv.org arxiv.org
Abstract: Machine Learning (ML) and linear System Identification (SI) have been historically developed independently. In this paper, we leverage well-established ML tools - especially the automatic differentiation framework - to introduce SIMBa, a family of discrete linear multi-step-ahead state-space SI methods using backpropagation. SIMBa relies on a novel Linear-Matrix-Inequality-based free parametrization of Schur matrices to ensure the stability of the identified model.
We show how SIMBa generally outperforms traditional linear state-space SI methods, and sometimes significantly, …
abstract arxiv backpropagation cs.lg cs.sy differentiation eess.sy family framework identification linear machine machine learning ml tools novel paper space state tools type
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