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Home Members Ioannis E. Livieris A memoryless BFGS Neural network training algorithm
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A memoryless BFGS Neural network training algorithm PDF Print E-mail

M.S. Apostolopoulou, D.G. Sotiropoulos, I.E. Livieris and P. Pintelas, A Memoryless BFGS Neural Network Training Algorithm, In Proceedings of 6th IEEE International Conference on Industrial Informatics (INDIN 2009), p.p. 216-221, 2009.


Abstract - We present a new curvilinear algorithmic model for training neural networks which is based on a modifications of the memoryless BFGS method that incorporates a curvilinear linesearch. The proposed model exploits the nonconvexity of the error surface based on information provided by the eigensystem of memoryless BFGS matrices using a pair of directions; a memoryless quasi-Newton direction and a direction of negative curvature. In addition, the computation of the negative curvature direction is accomplished avoiding any storage andĀ  matrix factorization. Simulations results verify that he proposed modification significantly improves the efficiency of the training process.


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