Parallel nonlinear optimization techniques for training neural networks

In this paper, we propose the use of parallel quasi-Newton (QN) optimization techniques to improve the rate of convergence of the training process for neural networks. The parallel algorithms are developed by using the self-scaling quasi-Newton (SSQN) methods. At the beginning of each iteration, a s...

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Vydané v:IEEE transactions on neural networks Ročník 14; číslo 6; s. 1460 - 1468
Hlavní autori: Phua, P.K.H., Daohua Ming
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: United States IEEE 01.11.2003
Predmet:
Backpropagation algorithms
Benchmark testing
Character generation
Convergence
Feedforward neural networks
Least squares methods
Neural networks
Neurons
Optimization methods
Parallel algorithms
ISSN:1045-9227
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Shrnutí:In this paper, we propose the use of parallel quasi-Newton (QN) optimization techniques to improve the rate of convergence of the training process for neural networks. The parallel algorithms are developed by using the self-scaling quasi-Newton (SSQN) methods. At the beginning of each iteration, a set of parallel search directions is generated. Each of these directions is selectively chosen from a representative class of QN methods. Inexact line searches are then carried out to estimate the minimum point along each search direction. The proposed parallel algorithms are tested over a set of nine benchmark problems. Computational results show that the proposed algorithms outperform other existing methods, which are evaluated over the same set of test problems.
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ISSN:1045-9227
DOI:10.1109/TNN.2003.820670