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early stopping neural network:: why data divided in two three subset???

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mangood UK
mangood UK on 7 Oct 2013
Commented: mangood UK on 9 Oct 2013
as i know from wiki and book by Simon hakin that early stopping use two type sets of data the first one for training and second one for validation test so which may ask
why their are three curves in performance plot when we use matlab train function ??? the curve name train error,validation and test error ???


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Accepted Answer

Greg Heath
Greg Heath on 8 Oct 2013
Data = Design + Non-design
Design = Train(estimate weights) + Validation(Stop training when MSEval goes thru a minimum).
Non-design = Test(Obtain UNBIASED generalization estimate of performance on unseen non-design data).

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