arXiv Machine Learning By Tuan Luong, Hyungpil Moon

Data-driven discrete-time deep recurrent neural network-based modeling for dissipative systems

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The paper introduces DissipNet, a deep discrete‑time recurrent neural network that enforces dissipativity through structural weight constraints and a specialized training algorithm. By design, the network learns dissipative dynamics while maintaining stability, as formally verified using Lyapunov theory. Compared to standard RNNs and Physics‑Informed Neural Networks, DissipNet offers explicit stability guarantees and demonstrates improved performance across several modeling tasks.

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arXiv Machine Learning
Aug 19

Nonlinear GENERIC-Embedded Neural Networks (N-GENNs): Learning GENERIC dynamics with non-quadratic dissipation potentials

Nonlinear GENERIC-Embedded Neural Networks (N-GENNs) are a deep learning framework designed to discover evolution equations for systems governed by the nonlinear GENERIC formalism. The method incorporates generalized gradient flows through convex dissipation potentials, allowing it to capture a wider range of thermodynamically consistent dynamics, including those with non‑quadratic dissipation potentials. Thermodynamic structure is enforced by construction, ensuring compliance with the first and second laws, and the approach is validated on a harmonic oscillator with a heat bath, an idealized chemical motor, and a one‑dimensional viscoplastic Perzyna model.

By Vojt\v{e}ch Votruba, Zequn He, Weilun Qiu, Celia Reina, Michal Pavelka