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Compression of the Koopman matrix for nonlinear physical models via hierarchical clustering
March 28, 2024, 4:41 a.m. | Tomoya Nishikata, Jun Ohkubo
cs.LG updates on arXiv.org arxiv.org
Abstract: Machine learning methods allow the prediction of nonlinear dynamical systems from data alone. The Koopman operator is one of them, which enables us to employ linear analysis for nonlinear dynamical systems. The linear characteristics of the Koopman operator are hopeful to understand the nonlinear dynamics and perform rapid predictions. The extended dynamic mode decomposition (EDMD) is one of the methods to approximate the Koopman operator as a finite-dimensional matrix. In this work, we propose a …
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