Reduced-order models for coupled dynamical systems: Data-driven methods and the Koopman operator

Santos Gutiérrez, M., Lucarini, V., Chekroun, M.D. and Ghil, M., 2021. Reduced-order models for coupled dynamical systems: Data-driven methods and the Koopman operator. Chaos: An Interdisciplinary Journal of Nonlinear Science, 31(5), p.053116.