What are the most arriving problem during training process of F network in error backward propagation by gradient descent training algorithm?

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Sundaram Muniasamy

One should concentrate on local minima problem while using neural network.

There are more local minima in which your network may remain. So that convergence of network should be properly framed.

Lila Khatiwada

Dear Sundaram,

i have made a network from neural network toolbox in MATLAB but correlation cofficient is 0.9999 for only Train set but it ino for validation set and test set what is problem can you suggest me ??