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Issue:
Optimization method by combination of wavelet neural networks and genetic algorithm
Author(s):
WANG Bao-guo
,
LIU Shu-yan
,
QIAN Geng
,
NAN Xi
,
GUO Yu-hang
Pages:
1953
-
1960
Year:
2008
Issue:
11
Journal:
Journal of Aerospace Power
Keyword:
小波神经网络
;
Pareto遗传算法
;
射流元件
;
叶轮机械
;
优化设计
;
Abstract:
提出一种基于小波神经网络(简称WNN)与Pareto遗传算法相结合的优化方法,并用于内流的数值流场优化计算.小波神经网络由输入层、隐含层和输出层组成.在隐含层用Morlet小波母函数取代了误差反向传播(BP)神经网络中常用的Sigmoid激励函数.Pareto遗传算法具有很好的全局寻优能力和良好的优化效率,在通常情况下它总可以得到均匀分布的Pareto最优解集.典型算例表明:该算法快速、高效.能高精度的完成非线性函数的逼近与映射,其泛化能力很强.
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