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计算机科学 2008
Modified BP Network in Breaking Away from Flat Areas Effectively
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Abstract:
This paper proposes a new rule to adjust the weight value,which ensures enough weight adjusted range when the output of neuron is close to 0 or 1.The new rule solves a difficult problem for standard BP network to break away from the flat area when it has entered,here its training speed is very slow.A experiment which uses a BPnetwork with single hidden layer to approximate a nonlinear function is presented in the paper.It verifies the superiority of the new rule in the training speed,and draws a conclusion ...