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makeObjFcn2.m
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makeObjFcn2.m
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function ObjFcn = makeObjFcn2(XTrain,YTrain,XValidation,YValidation,Parm)
measure=Parm.ObjFcnMeasure;
ObjFcn = @valErrorFun;
function [valError,cons,fileName] = valErrorFun(optVars)
imageSize = [size(XTrain,1) size(XTrain,2) size(XTrain,3)];
numClasses = numel(unique(YTrain));
%initialNumFilters = round((max(imageSize)/2)/sqrt(optVars.NetworkDepth));
numMaxPools=3;
PoolSizeAvg = floor(max(imageSize)/(2^(numMaxPools)));
%filterSize = 5;
layers = [
imageInputLayer(imageSize,'Name','input')
convolution2dLayer(optVars.filterSize,optVars.initialNumFilters,'Padding','same','Name','conv_1')%3,8
batchNormalizationLayer('Name','BN_1');
reluLayer('Name','relu_1');
maxPooling2dLayer(2,'Stride',2,'Name','MaxPool_1')
convolution2dLayer(optVars.filterSize,2*optVars.initialNumFilters,'Padding','same','Name','conv_2')%3,16
batchNormalizationLayer('Name','BN_2');
reluLayer('Name','relu_2');
maxPooling2dLayer(2,'Stride',2,'Name','MaxPool_2')
convolution2dLayer(optVars.filterSize,4*optVars.initialNumFilters,'Padding','same','Name','conv_3')%3,32
batchNormalizationLayer('Name','BN_3')
reluLayer('Name','relu_3')
maxPooling2dLayer(2,'Stride',2,'Name','MaxPool_3')
convolution2dLayer(optVars.filterSize,8*optVars.initialNumFilters,'Padding','same','Name','conv_4')%3,32
batchNormalizationLayer('Name','BN_4')
reluLayer('Name','relu_4')
% maxPooling2dLayer(2,'Stride',2,'Name','MaxPool_4')
%
% convolution2dLayer(filterSize,16*filterNum,'Padding','same','Name','conv_5')%3,32
% batchNormalizationLayer('Name','BN_5')
% reluLayer('Name','relu_5')
additionLayer(2,'Name','add')
averagePooling2dLayer(2,'Stride',2,'Name','avpool')
fullyConnectedLayer(numClasses,'Name','FC')
softmaxLayer('Name','softmax')
classificationLayer('Name','ClassOut')];
layers2 = [
convolution2dLayer(optVars.filterSize2,optVars.initialNumFilters,'Padding','same','Name','l2_conv_1')%3,8
batchNormalizationLayer('Name','l2_BN_1');
reluLayer('Name','l2_relu_1');
maxPooling2dLayer(2,'Stride',2,'Name','l2_MaxPool_1')
convolution2dLayer(optVars.filterSize2,2*optVars.initialNumFilters,'Padding','same','Name','l2_conv_2')%3,16
batchNormalizationLayer('Name','l2_BN_2');
reluLayer('Name','l2_relu_2');
maxPooling2dLayer(2,'Stride',2,'Name','l2_MaxPool_2')
convolution2dLayer(optVars.filterSize2,4*optVars.initialNumFilters,'Padding','same','Name','l2_conv_3')%3,32
batchNormalizationLayer('Name','l2_BN_3')
reluLayer('Name','l2_relu_3')
maxPooling2dLayer(2,'Stride',2,'Name','l2_MaxPool_3')
convolution2dLayer(optVars.filterSize2,8*optVars.initialNumFilters,'Padding','same','Name','l2_conv_4')%3,32
batchNormalizationLayer('Name','l2_BN_4')
reluLayer('Name','l2_relu_4')
% maxPooling2dLayer(2,'Stride',2,'Name','l2_MaxPool_4')
%
% convolution2dLayer(8,160,'Padding','same','Name','l2_conv_5')%3,32
% batchNormalizationLayer('Name','l2_BN_5')
% reluLayer('Name','l2_relu_5')
];
lgraph = layerGraph(layers);
lgraph = addLayers(lgraph,layers2);
lgraph = connectLayers(lgraph,'input','l2_conv_1');
lgraph = connectLayers(lgraph,'l2_relu_4','add/in2');
%figure; plot(lgraph)
% layers = [
% imageInputLayer(imageSize)
%
% % The spatial input and output sizes of these convolutional
% % layers are 32-by-32, and the following max pooling layer
% % reduces this to 16-by-16.
% convBlock(optVars.filterSize,initialNumFilters,optVars.NetworkDepth)
% maxPooling2dLayer(2,'Stride',2)
% % 1. maxPool
%
% % The spatial input and output sizes of these convolutional
% % layers are 16-by-16, and the following max pooling layer
% % reduces this to 8-by-8.
% convBlock(optVars.filterSize,2*initialNumFilters,optVars.NetworkDepth)
% maxPooling2dLayer(2,'Stride',2)
% % 2. maxPool
%
% % The spatial input and output sizes of these convolutional
% % layers are 8-by-8. The global average pooling layer averages
% % over the 8-by-8 inputs, giving an output of size
% % 1-by-1-by-4*initialNumFilters. With a global average
% % pooling layer, the final classification output is only
% % sensitive to the total amount of each feature present in the
% % input image, but insensitive to the spatial positions of the
% % features.
% convBlock(optVars.filterSize,4*initialNumFilters,optVars.NetworkDepth)
% maxPooling2dLayer(2,'Stride',2)
% % 3. maxPool
%
% convBlock(optVars.filterSize,8*initialNumFilters,optVars.NetworkDepth)
% %averagePooling2dLayer(PoolSizeAvg)
%
% % Add the fully connected layer and the final softmax and
% % classification layers.
% fullyConnectedLayer(numClasses)
% softmaxLayer
% classificationLayer];
augimdsTrain = augmentedImageDatastore(imageSize(1:2),XTrain,YTrain);
augimdsValidation = augmentedImageDatastore(imageSize(1:2),XValidation,YValidation);
miniBatchSize = Parm.miniBatchSize;
validationFrequency = floor(numel(YTrain)/miniBatchSize);
if validationFrequency<1
validationFrequency=1;
end
options = trainingOptions('sgdm',...
'InitialLearnRate',optVars.InitialLearnRate,...
'Momentum',optVars.Momentum,...
'ExecutionEnvironment',Parm.ExecutionEnvironment,...
'MaxEpochs',Parm.MaxEpochs, ...
'LearnRateSchedule','piecewise',...
'LearnRateDropPeriod',35,...
'LearnRateDropFactor',0.1,...
'MiniBatchSize',miniBatchSize,...
'L2Regularization',optVars.L2Regularization,...
'Shuffle','every-epoch',...
'Verbose',false,...
'Plots','none',...
'ValidationData',{XValidation,YValidation},...
'ValidationPatience',Inf,...
'ValidationFrequency',validationFrequency);
%'Plots','none',...
%'MaxEpochs',100,...
% 'Plots','training-progress',...
% imageAugmenter = imageDataAugmenter( ...
% 'RandRotation',[-5,5], ...
% 'RandXTranslation',[-3 3], ...
% 'RandYTranslation',[-3 3]);
%
% datasource = augmentedImageDatastore(imageSize,XTrain,YTrain,...
% 'DataAugmentation',imageAugmenter,...
% 'OutputSizeMode','randcrop');
% trainedNet = trainNetwork(datasource,lgraph,options);
rng('default');
trainedNet = trainNetwork(augimdsTrain,lgraph,options);
close(findall(groot,'Tag','NNET_CNN_TRAININGPLOT_FIGURE'))
[YPredicted,probs] = classify(trainedNet,augimdsValidation);
if strcmp(measure,'accuracy')
valError = 1 - mean(YPredicted == YValidation);
%display('accuracy');
else
[a,b,c,auc] = perfcurve(YValidation,probs(:,2),'2');
valError = 1 - auc;
%display('auc based');
end
fileName = num2str(valError) + ".mat";
save(fileName,'trainedNet','valError','options')
cons = [];
end
end