2026-06-06T02:46:13Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/55942026-02-03T11:21:30Zcom_10630_2254col_10630_37953

00925njm 22002777a 4500 dc Atencia-Ruiz, Miguel Alejandro author Hernández, Yadira author Joya-Caparrós, Gonzalo author Sandoval-Hernández, Francisco author 2013 A numerical method for computational implementation of gradient dynamical systems is presented. The method is based upon the development of geometric integration numerical methods, which aim at preserving the dynamical properties of the original ordinary differential equation under discretization. In particular, the proposed method belongs to the class of discrete gradients methods, which substitute the gradient of the continuous equation with a discrete gradient, leading to a map that possesses the same Lyapunov function of the dynamical system, thus preserving the qualitative properties regardless of the step size. In this work, we apply a discrete gradient method to the implementation of Hopfield neural networks. Contrary to most geometric integration methods, the proposed algorithm can be rewritten in explicit form, which considerably improves its performance and stability. Simulation results show that the preservation of the Lyapunov function leads to an improved performance, compared to the conventional discretization. The final publication is available at link.springer.com. doi:10.1007/978-3-642-38682-4_38 http://hdl.handle.net/10630/5594 Algoritmos computacionales Numerical Implementation of Gradient Algorithms