sustaining_gazes/matlab_version/face_validation/DeepLearnToolbox/CAE/caetrain.m

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2016-04-28 21:40:36 +02:00
function cae = caetrain(cae, x, opts)
n = cae.inputkernel(1);
cae.rL = [];
for m = 1 : opts.rounds
tic;
disp([num2str(m) '/' num2str(opts.rounds) ' rounds']);
i1 = randi(numel(x));
l = randi(size(x{i1}{1},1) - opts.batchsize - n + 1);
x1{1} = double(x{i1}{1}(l : l + opts.batchsize - 1, :, :)) / 255;
if n == 1 %Auto Encoder
x2{1} = x1{1};
else %Predictive Encoder
x2{1} = double(x{i1}{1}(l + n : l + n + opts.batchsize - 1, :, :)) / 255;
end
% Add noise to input, for denoising stacked autoenoder
x1{1} = x1{1} .* (rand(size(x1{1})) > cae.noise);
cae = caeup(cae, x1);
cae = caedown(cae);
cae = caebp(cae, x2);
cae = caesdlm(cae, opts, m);
% caenumgradcheck(cae,x1,x2);
cae = caeapplygrads(cae);
if m == 1
cae.rL(1) = cae.L;
end
% cae.rL(m + 1) = 0.99 * cae.rL(m) + 0.01 * cae.L;
cae.rL(m + 1) = cae.L;
% if cae.sv < 1e-10
% disp('Converged');
% break;
% end
toc;
end
end