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BP Network Optimization Based on Improved Genetic Algorithm

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Abstract:

In view of the virtue and shortage of genetic algorithm and BP network, this paper proposes a new BP network training method based on improved genetic algorithm (IGA-BP). This algorithm uses hierarchical code, adaptive crossover and mutation, pruning similar chromosomes, dynamic supply new chromosomes and other operations, so the network structure and weight are optimized at the same time and the "premature" phenomenon is avoided. The simulation results show that the IGA-BP network architecture is simple, the convergence rate is quick, and has good approximation and generalization ability.

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Periodical:

Advanced Materials Research (Volumes 532-533)

Pages:

1757-1763

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.532-533.1757

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Cite this paper

Online since:

June 2012

Authors:

Wei Wei Sun, Yun Fei Yao, Chun Sheng Wang, Ye Gang Hu

Keywords:

Adaptive, BP Network, Genetic Algorithm (GA), Hierarchical Code, Pruning

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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