How can I add layers to a neural network in MATLAB ANN toolbox?
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Wei Chen
el 12 de Jun. de 2015
Comentada: Mahmoud Elbeltagy
el 14 de Sept. de 2020
I want to use MATLAB ANN toolbox to construct a neural network with three hidden layers, but in the toolbox I found that the default setting is that there is only one hidden layer, how can I add layers to this network?
Thanks!
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Greg Heath
el 12 de Jun. de 2015
net = fitnet([H1 H2 H3]);
However, why in the world would you want to complicate an already universal approximator by adding two more hidden layers?
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Mahmoud Elbeltagy
el 14 de Sept. de 2020
As mentioned in Ian Goodfellow Book "Deep Learning", adding depth to the neural network reduces the number of neurons required to fit the data. And also as mentioned by him, adding extra layers comes from the belief that basic features are used to produce more complex features as you move uo in the layers heirarchy.
"In many cases, the number of hidden units required by the shallow model is exponential in n." Deep Learning book
P199
"Choosing a deep model encodes a very general belief that the function we want to learn should involve composition of several simpler functions" P201
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