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math.DS2026
Integral Formulation of QENDy for Robust Nonlinear System Identification
Nikhil Saran, Sushant Pokhriyal, Stefan Klus +2
This manuscript proposes an integral formulation of the newly defined quadratic embedding method for identifying nonlinear systems (QENDy). In the original algorithm, trajectory da…
math.DS2025
Data-driven system identification using quadratic embeddings of nonlinear dynamics
Stefan Klus, Joel-Pascal Ntwali N'konzi
We propose a novel data-driven method called QENDy (Quadratic Embedding of Nonlinear Dynamics) that not only allows us to learn quadratic representations of highly nonlinear dynami…
math.DS2024
Data-driven network analysis using local delay embeddings
Stefan Klus, Hongyu Zhu
Data-driven methods for the identification of the governing equations of dynamical systems or the computation of reduced surrogate models play an increasingly important role in man…