How to combat the problem of overfitting in a Matlab Neural Network

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Oscar Schyns
Oscar Schyns 2017-6-15
I constructed my own neural network with matlab but it is a bit overfitted. Online I red that with the function net = feedforwardnet(20,'trainbr'); but with it the overfitting is not much better. The data is already distributed randomly over the samples. I also tried to combine the forecasting results of more networks.
My goal is to change the minimization goal so that it includes a term of the squared parameters calculated by the NN

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