How to choose the number of neurons in the hidden layer of neural network?

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mr.amit_singh - 2021-07-16T11:24:53+00:00
Question: How to choose the number of neurons in the hidden layer of neural network?

Hi, i'm using the neural network for classification using nnstart and i have dataset (input) with a size of 9*981 and i want to know how to choose the number of neurons in the hidden layer for it ?  

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    • Expert Answer

    Profile picture of John Michell John Michell answered . 2025-11-20

    Use trial and error with the training subset goal
     
     
     MSEtrngoal = 0.01*var(trntarget,1)        % 1-D target
 or
 MSEtrngoal = 0.01*mean(var(trntarget',1)) % Otherwise
    Start with the MATLAB default H = 10 and design ~10 nets for each setting of H. Each of the 10 is initialized with a different setting of random initial weights.


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