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Dropout Layer Before Fully connected Layer

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Hi guys
I am asking if it is possible to make dropout layer before FC layer
Example below:-
layers = [
imageInputLayer([64 64 3],"Name","imageinput","Normalization","none")
convolution2dLayer([5 5],4,"Name","conv_1","Padding","same")
reluLayer("Name","relu_1")
maxPooling2dLayer([2 2],"Name","maxpool_1","Padding","same","Stride",[2 2])
convolution2dLayer([3 3],8,"Name","conv_2","Padding","same")
reluLayer("Name","relu_2")
maxPooling2dLayer([2 2],"Name","maxpool_2","Padding","same","Stride",[2 2])
convolution2dLayer([3 3],32,"Name","conv_3","Padding","same")
reluLayer("Name","relu_3")
averagePooling2dLayer([2 2],"Name","avgpool2d_1","Padding","same","Stride",[2 2])
convolution2dLayer([3 3],64,"Name","conv_4","Padding","same")
reluLayer("Name","relu_4")
averagePooling2dLayer([2 2],"Name","avgpool2d_2","Padding","same","Stride",[2 2])
dropoutLayer(0.51,'Name','drop1')
fullyConnectedLayer(2,"Name","fc")
softmaxLayer("Name","softmax")
classificationLayer("Name","classoutput")];
Best,

Accepted Answer

Shashank Gupta
Shashank Gupta on 20 Jan 2020
Hi Abdussalam,
Yes, you can use Dropout layer before the fully connected layer, Dropout is just a regularization technique for preventing overfitting in the network, it can be applied anywhere regardless of FC or Conv but again it is generally recommended to use it after FC layer because they are the ones with the greater number of parameter and thus they are likely to excessively co-adapting themselves causing Overfitting.
However, it’s a stochastic regularization technique, you can really place it everywhere. Usually placed on the layer with a greater number of parameters, but no denies you from applying anywhere.
  1 Comment
Abdussalam Elhanashi
Abdussalam Elhanashi on 26 Jan 2020
Hi Shashank Gupta
Thank For your reply
Is it possibe to use Dropout with value 0.6?
Best,

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