How to find the total number of parameters in CNN network?

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M M Nabi
M M Nabi 2022-2-16
回答： adel adel 2023-3-13
Suppose I am using a deep learning model like VGG-16/ResNet, The other tools like tensorflow, Keras automatically show the number of parameters used by the candidate network.
How do I can find the total number of used paramters if I modfiy the pre-trained network based on my application?

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回答（2 个）

yanqi liu
yanqi liu 2022-2-17
yes，may be use analyzeNetwork to get net model，such as
net = vgg16;
analyzeNetwork(net)
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Sivylla Paraskevopoulou
Sivylla Paraskevopoulou 2022-5-13
See a similar thread: https://www.mathworks.com/matlabcentral/answers/426886-how-to-calculate-the-number-of-parameters-in-matlab-that-is-used-by-a-deep-learning-network-like-vgg
Katarina Vuckovic
Katarina Vuckovic 2022-12-25
analyzeNet shows the total number of learnable parameters per layer in the GUI. Is there a way I can extract that number and input it into the workspace? Right now it seems the only way to caclulate the learnable parameters is to manually sum up all the learnable parameters.

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adel adel
adel adel 2023-3-13
hello,
try this code:
lgraph = layerGraph(Net);
output = lgraph.Layers(end).Name;
prob = lgraph.Layers(end-1).Name;
lgraph = removeLayers(lgraph,output);
lgraph = removeLayers(lgraph,prob);
dlnet = dlnetwork(lgraph);
numparams = 0;
for i = 1:size(dlnet.Learnables,1)
numparams = numparams + numel(dlnet.Learnables.Value{i});
end
numparams = round(numparams/1000000,3);
end

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