LyLA-Therm: Lyapunov-based Langevin Adaptive Thermodynamic Neural Network Controller

Fuente: arXiv
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Main Authors: Akbari, Saiedeh, Patil, Omkar Sudhir, Dixon, Warren E.
Format: Preprint
Published: 2025
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author Akbari, Saiedeh
Patil, Omkar Sudhir
Dixon, Warren E.
author_facet Akbari, Saiedeh
Patil, Omkar Sudhir
Dixon, Warren E.
contents Thermodynamic principles can be employed to design parameter update laws that address challenges such as the exploration vs. exploitation dilemma. In this paper, inspired by the Langevin equation, an update law is developed for a Lyapunov-based DNN control method, taking the form of a stochastic differential equation. The drift term is designed to minimize the system's generalized internal energy, while the diffusion term is governed by a user-selected generalized temperature law, allowing for more controlled fluctuations. The minimization of generalized internal energy in this design fulfills the exploitation objective, while the temperature-based stochastic noise ensures sufficient exploration. Using a Lyapunov-based stability analysis, the proposed Lyapunov-based Langevin Adaptive Thermodynamic (LyLA-Therm) neural network controller achieves probabilistic convergence of the tracking and parameter estimation errors to an ultimate bound. Simulation results demonstrate the effectiveness of the proposed approach, with the LyLA-Therm architecture achieving up to 20.66% improvement in tracking errors, up to 20.89% improvement in function approximation errors, and up to 11.31% improvement in off-trajectory function approximation errors compared to the baseline deterministic approach.
format Preprint
id arxiv_https___arxiv_org_abs_2508_14989
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle LyLA-Therm: Lyapunov-based Langevin Adaptive Thermodynamic Neural Network Controller
Akbari, Saiedeh
Patil, Omkar Sudhir
Dixon, Warren E.
Systems and Control
Thermodynamic principles can be employed to design parameter update laws that address challenges such as the exploration vs. exploitation dilemma. In this paper, inspired by the Langevin equation, an update law is developed for a Lyapunov-based DNN control method, taking the form of a stochastic differential equation. The drift term is designed to minimize the system's generalized internal energy, while the diffusion term is governed by a user-selected generalized temperature law, allowing for more controlled fluctuations. The minimization of generalized internal energy in this design fulfills the exploitation objective, while the temperature-based stochastic noise ensures sufficient exploration. Using a Lyapunov-based stability analysis, the proposed Lyapunov-based Langevin Adaptive Thermodynamic (LyLA-Therm) neural network controller achieves probabilistic convergence of the tracking and parameter estimation errors to an ultimate bound. Simulation results demonstrate the effectiveness of the proposed approach, with the LyLA-Therm architecture achieving up to 20.66% improvement in tracking errors, up to 20.89% improvement in function approximation errors, and up to 11.31% improvement in off-trajectory function approximation errors compared to the baseline deterministic approach.
title LyLA-Therm: Lyapunov-based Langevin Adaptive Thermodynamic Neural Network Controller
topic Systems and Control
url https://arxiv.org/abs/2508.14989