Not enough input arguments
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Nur Asyikin Abd Jamel
el 25 de Oct. de 2020
Comentada: jikwan Bae
el 2 de Dic. de 2020
Why is it said not enough input arguments at momentum1 = zeros(size(W1)); ?
function [W1, W5, Wo] = MnistConv(W1, W5, Wo, X, D)
alpha = 0.01;
beta = 0.95;
momentum1 = zeros(size(W1));
momentum5 = zeros(size(W5));
momentumo = zeros(size(Wo));
N = length(D);
bsize = 100;
blist = 1:bsize:(N-bsize+1);
for batch = 1:length(blist)
dW1 = zeros(size(W1));
dW5 = zeros(size(W5));
dWo = zeros(size(Wo));
begin = blist(batch);
for k = begin:begin+bsize-1
x = X(:, :, k);
y1 = Conv(x, W1);
y2 = ReLU(y1);
y3 = Pool(y2);
y4 = reshape(y3, [],1);
v5 = W5*y4;
y5 = ReLU(v5);
v = Wo*y5;
y = Softmax(v);
d = zeros(10, 1);
d(sub2ind(size(d), D(k), 1)) = 1;
e = d - y;
delta = e;
e5 = Wo' * delta;
delta5= (y5 > 0).* e5;
e4 = W5' * delta5;
e3 = reshape(e4, size(y3));
e2 = zeros(size(y2));
W3 = ones(size(y2)) / (2*2);
for c = 1:20
e2(:, :,c) = kron(e3(:, :, c), ones([2 2])) .*W3(:, :, c);
end
delta2 = (y2 > 0) .* e2;
delta1_x = zeros(size(W1));
for c = 1:20
delta1_x(:, :,c) = conv2(x(:, :), rot90(delta2(:, :,c), 2), 'valid');
end
dW1 = dW1 + delta1_x;
dW5 = dW5 + delta5*y4';
dWo = dWo + delta*y5';
end
dW1 = dW1 / bsize;
dW5 = dW5 / bsize;
dWo = dWo / bsize;
momentum1 = alpha*dW1 + beta*momentum1;
W1 = W1 + momentum1;
momentum5 = alpha*dW5 + beta*momentum5;
W5 = W5 + momentum5;
momentumo = alpha*dWo + beta*momentumo;
Wo = Wo + momentumo;
end
end
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Respuesta aceptada
Stephen23
el 25 de Oct. de 2020
"Why is it said not enough input arguments at momentum1 = zeros(size(W1)); ?"
Because you called the function without any input arguments (probably by clicking the big greeen "Run" button).
You need to call your function (e.g. from the MATLAB command line) with five input arguments, e,g.:
W1 = 1;
W5 = 2;
Wo = 3;
X = 4;
D = 5;
[W1, W5, Wo] = MnistConv(W1, W5, Wo, X, D)
Of course you will need to define appropriate arrays and values to suit whatever task you are doing, not just copy 1, 2, 3, etc. from my answer. And in future ignore that big green button.
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