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A Hybrid Training Algorithm for Feedforward Neural Networks
Authors:Mounir Ben Nasr  Mohamed Chtourou
Affiliation:(1) Department of Electrical Engineering, Research Unit on Intelligent Control, Design and Optimization of Complex Systems (ICOS), ENIS, BPW, 3038 Sfax, Tunisia
Abstract:Feedforward neural networks (FNN) have been proposed to solve complex problems in pattern recognition, classification and function approximation. Despite the general success of learning methods for FNN, such as the backpropagation (BP) algorithm, second-order algorithms, long learning time for convergence remains a problem to be overcome. In this paper, we propose a new hybrid algorithm for a FNN that combines unsupervised training for the hidden neurons (Kohonen algorithm) and supervised training for the output neurons (gradient descent method). Simulation results show the effectiveness of the proposed algorithm compared with other well-known learning methods.
Keywords:feedforward neural network  gradient descent method  supervised and unsupervised learning  self-organizing map  hybrid training
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