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gadecod_test.m
Package: xiaobo.zip [view]
Upload User: wxlysp
Upload Date: 2008-11-24
Package Size: 33k
Code Size: 1k
Category:
AI-NN-PR
Development Platform:
Visual C++
- % 将遗传算法的编码分解为BP网络所对应的权值、阈值
- function [W1, shift_b1, W2, scale_a1, P, T, A1, A2, SE, val]=gadecod_test(x)
- [P,T,R,S1,S2,S,Q]=nninit_test; %%%%%%%%%%%%% 修改
- % 前R*S1个编码为W1
- for i=1:S1,
- for k=1:R,
- W1(i,k)=x(R*(i-1)+k);
- end
- end
- % 接着的S1*S2个编码(即第R*S1个后的编码)为W2
- for i=1:S2,
- for k=1:S1,
- W2(i,k)=x(S1*(i-1)+k+R*S1);
- end
- end
- % 接着的S1个编码(即第R*S1+S1*S2个后的编码)为 shift_b1
- for k=1:S1,
- shift_b1(k,1)=x((R*S1+S1*S2)+k);
- end
- % 接着的S1个编码(即第R*S1+S1*S2+S1个后的编码)为scale_a1
- for k=1:S1,
- scale_a1(k,1)=x((R*S1+S1*S2+S1)+k);
- end
- % 计算S1与S2层的输出
- r=W1*P; Q=length(P);
- for j =1:Q %%%% 所有的样本组
- for i=1:S1 %%%% 每一组样本的输出 每列
- A1(i,j)=hfun(r(i,j),shift_b1(i),scale_a1(i) );
- % A1(j)= hfun(r(j),b1(j),a1(j));
- end
- end
- A2=W2*A1;
- %A2=sigmoid(A2);
- % 计算误差平方和
- SE=sumsqr(T-A2);
- val=1/SE; % 遗传算法的适应值