GA-Neural Network Hybridization

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How GA can be hybridized with Neural network (with reference to Matlab).
  3 个评论
Abul Fujail
Abul Fujail 2012-4-4
in='input_train.tra';
p=load(in);
p=transpose(p);
net=newff([.1 .9;.1 .9;.1 .9;.1 .9],[7,1], {'logsig','logsig'},'trainlm');
net=init(net);
tr='target_train.tra';
x=load(tr);
x=transpose(x);
net.trainParam.epochs=600;
net.trainParam.show=10;
net.trainParam.lr=0.3;
net.trainParam.mc=0.6;
net.trainParam.goal=0;
[net,tr]=train(net,p,x);
y=sim(net,p);
Some codes are shown above... i have 4 input vector and 1 target vector... i want to get the optimum weight with GA so that the mean square error between target and neural network predicted result is minimum. Please suggest me how the GA can be added with this neural network code..
thomas lass
thomas lass 2016-12-24
I need the full codes of GA can be hybridized with Neural network

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采纳的回答

Greg Heath
Greg Heath 2012-2-3
I don't see how they can be combined to an advantage.
Just write the I/O relationship for the net in terms of input, weights and output: y = f(W,x). Then use the Global Optimization toolox to minimize the mean square error MSE = mean(e(:).^2) where e is the training error, e = (t-y) and t is the training goal.
Hope this helps.
Greg
  3 个评论
Shipra Kumar
Shipra Kumar 2017-1-30
编辑:Shipra Kumar 2017-1-30
greg how can u write y as a function. i am having similar difficulty while implementing ga-nn. would be glad if u could help
Greg Heath
Greg Heath 2017-1-30
y = B2+ LW*tansig( B1 + IW *x);

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