how can i train my network for test and validation data?

Question

Ahsen Feyza Dogan 2019-1-16

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/440052-how-can-i-train-my-network-for-test-and-validation-data

回答： Greg Heath 2019-1-16

x is the my input, y is the desired output then I split x as validation and test data y as well. How should be my algorithm? I want to see how weights are changing for each epoch.

x=[5,1,1,1,2,1,3,1,1;5,4,4,5,7,10,3,2,1;3,1,1,1,2,2,3,1,1;6,8,8,1,3,4,3,7,1;4,1,1,3,2,1,3,1,1;8,10,10,8,7,10,9,7,1;1,1,1,1,2,10,3,1,1;2,1,2,1,2,1,3,1,1;2,1,1,1,2,1,1,1,5;4,2,1,1,2,1,2,1,1;1,1,1,1,1,1,3,1,1;2,1,1,1,2,1,2,1,1;5,3,3,3,2,3,4,4,1;1,1,1,1,2,3,3,1,1;8,7,5,10,7,9,5,5,4;7,4,6,4,6,1,4,3,1;4,1,1,1,2,1,2,1,1;4,1,1,1,2,1,3,1,1;10,7,7,6,4,10,4,1,2;6,1,1,1,2,1,3,1,1;7,3,2,10,5,10,5,4,4;10,5,5,3,6,7,7,10,1;3,1,1,1,2,1,2,1,1;5,10,10,8,5,5,7,10,1;1,1,1,1,2,1,3,1,1;5,2,3,4,2,7,3,6,1;3,2,1,1,1,1,2,1,1;5,1,1,1,2,1,2,1,1;2,1,1,1,2,1,2,1,1;1,1,3,1,2,1,1,1,1];

y=[2;2;2;2;2;4;2;2;2;2;2;2;4;4;4;2;2;4;2;4;4;2;4;2;4;2;2;2;2]

x_test=x(1:20,:)

x_validation=x(21:end,:)

y_test=y(1:20,:)

y_validation=y(21:end,:)

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Answer 1

Greg Heath 2019-1-16

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/440052-how-can-i-train-my-network-for-test-and-validation-data#answer_356656

Where is your training data?

The MATLAB default is a random choice of trn/val/tst = 0.7/0.15/0.15

I choose candidate values of H to avoid overfitting and, 10-to-20 random initial sets of weights.

There are zillions of my examples in BOTH COMP.SOFT-SYS.MATLAB & ANSWERS

Hope this helps.

Thank you for formally accepting my answer

Greg

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Ahsen Feyza Dogan 2019-1-16

Actually I am new at this field so I confused that I am on the right way. I am trying to do split my data set x into test and validation then using single and multilayer perceptron get output as 2 or 4 depends on my input. Could you briefly explain what am I suppose to do?

Thanks

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