inputSize = [3 12 2000]; % 输入数据的大小 layers = [ imageInputLayer(inputSize) batchNormalizationLayer reluLayer dropoutLayer(0) convolution2dLayer([2 8], 100, 'Padding', 'same') batchNormalizationLayer reluLayer maxPooling2dLayer([2 4], 'Stride', [2 4]) dropoutLayer(0) convolution2dLayer([1 2], 50, 'Padding', 'same') batchNormalizationLayer reluLayer maxPooling2dLayer([1 1], 'Stride', [1 1]) dropoutLayer(0) fullyConnectedLayer(2) softmaxLayer classificationLayer]; analyzeNetwork(layers); % 定义网络选项 options = trainingOptions('adam', ... 'MaxEpochs', 100, ... 'MiniBatchSize', 1, ... 'ValidationData', [], ... 'Plots', 'training-progress', ... 'Verbose', false); % 创建网络 net = trainNetwork(zeros(inputSize), categorical(zeros(2, 2)), layers, options);帮我修改代码,解决下列报错。错误使用 trainNetwork 无效的训练数据。对于分类任务,响应必须为分类响应的向量。对于回归任务,响应 必须为向量、矩阵或数值响应的四维数组,其中不能包含 NaN。 出错 eegnet2 (第 31 行) net = trainNetwork(zeros(inputSize), categorical(zeros(2, 2)), layers, options);
时间: 2023-12-07 17:02:16 浏览: 30
根据错误提示,需要将训练数据的响应修改为分类响应的向量。假设你的分类有两个类别,可以将训练数据的响应修改如下:
```
responses = [1; 2]; % 假设有两个类别
trainResponses = categorical(responses, 1:2);
```
然后将修改后的训练数据和响应传入 `trainNetwork` 函数中:
```
net = trainNetwork(zeros(inputSize), trainResponses, layers, options);
```
相关问题
inputSize = [3 12 2000]; % 输入数据的大小layers = [ ... imageInputLayer(inputSize) batchNormalizationLayer; % transposeLayer; dropoutLayer(0); convolution2dLayer([2 8],2000) batchNormalizationLayer; maxPooling2dLayer([2 4]); dropoutLayer(0); convolution2dLayer([1 2],2000) batchNormalizationLayer; maxPooling2dLayer([1 1]); dropoutLayer(0); fullyConnectedLayer(2) softmaxLayer classificationLayer]; analyzeNetwork(layers);% 定义网络选项 options = trainingOptions('adam', ... 'MaxEpochs', 100, ... 'MiniBatchSize', 1, ... 'ValidationData', [], ... 'Plots', 'training-progress', ... 'Verbose', false); % 创建网络 net = trainNetwork(zeros(inputSize), categorical(zeros(2, 1)), layers, options); end帮我修改代码,以便解决下列报错错误使用 trainNetwork Invalid training data. The output size (2) of the last layer does not match the number of classes of the responses (1). 出错 EEGNet (第 63 行) net = trainNetwork(zeros(inputSize), categorical(zeros(2, 1)), layers, options);
这个错误提示是因为最后一层全连接层的输出大小为2,但是分类标签的数量为1,需要将分类标签的数量修改为2,即:
```matlab
net = trainNetwork(zeros(inputSize), categorical(zeros(2, 2)), layers, options);
```
此外,还有几个需要修改的地方:
1. batchNormalizationLayer 和 dropoutLayer 之间需要添加 reluLayer 或者 leakyReluLayer,否则会导致无法训练。
2. convolution2dLayer 的输出通道数应该减少,否则会导致内存不足或者无法训练。
修改后的代码如下:
```matlab
inputSize = [3 12 2000]; % 输入数据的大小
layers = [
imageInputLayer(inputSize)
batchNormalizationLayer
reluLayer
dropoutLayer(0)
convolution2dLayer([2 8], 100, 'Padding', 'same')
batchNormalizationLayer
reluLayer
maxPooling2dLayer([2 4], 'Stride', [2 4])
dropoutLayer(0)
convolution2dLayer([1 2], 50, 'Padding', 'same')
batchNormalizationLayer
reluLayer
maxPooling2dLayer([1 1], 'Stride', [1 1])
dropoutLayer(0)
fullyConnectedLayer(2)
softmaxLayer
classificationLayer];
analyzeNetwork(layers);
% 定义网络选项
options = trainingOptions('adam', ...
'MaxEpochs', 100, ...
'MiniBatchSize', 1, ...
'ValidationData', [], ...
'Plots', 'training-progress', ...
'Verbose', false);
% 创建网络
net = trainNetwork(zeros(inputSize), categorical(zeros(2, 2)), layers, options);
```
我的代码如下:% 加载数据 load('result442.mat'); load('result452.mat'); % 将输入数据转换为ConvLSTM网络所需的格式 inputData = reshape(result442, [1, 1, size(result442)]); outputData = reshape(result452, [1, 1, size(result452)]); % 定义ConvLSTM网络结构 layers = [ sequenceInputLayer(size(inputData)) convolution2dLayer([1 5], 32, 'Padding', [0 2]) batchNormalizationLayer reluLayer convolution2dLayer([1 5], 32, 'Padding', [0 2], 'DilationFactor', [2 1]) batchNormalizationLayer reluLayer convolution2dLayer([1 5], 32, 'Padding', [0 2], 'DilationFactor', [4 1]) batchNormalizationLayer reluLayer convolution2dLayer([1 5], 32, 'Padding', [0 2], 'DilationFactor', [8 1]) batchNormalizationLayer reluLayer convolution2dLayer([1 5], 32, 'Padding', [0 2]) batchNormalizationLayer reluLayer convolution2dLayer([1 1], 1) regressionLayer ]; % 定义训练选项 options = trainingOptions('adam', ... 'MaxEpochs', 50, ... 'MiniBatchSize', 64, ... 'LearnRateSchedule', 'piecewise', ... 'LearnRateDropFactor', 0.1, ... 'LearnRateDropPeriod', 20, ... 'GradientThreshold', 1, ... 'Shuffle', 'every-epoch', ... 'Verbose', 1, ... 'Plots', 'training-progress'); % 训练ConvLSTM网络 net = trainNetwork(inputData, outputData, layers, options);
根据您提供的代码,我认为您的问题可能是由于ConvLSTM网络结构中的某些层不支持序列输入而导致的。具体来说,您的ConvLSTM网络结构中的第一个卷积层不支持序列输入数据,因为它需要一个四维输入张量。而在您的代码中,您将输入数据reshape为一个三维张量,这会导致该错误。为了解决这个问题,您可以尝试在ConvLSTM网络结构的第一个卷积层之前添加一个序列折叠层,以将序列数据折叠成一个固定大小的向量。修改后的代码如下:
% 加载数据
load('result442.mat');
load('result452.mat');
% 将输入数据转换为ConvLSTM网络所需的格式
inputData = reshape(result442, [1, 1, size(result442)]);
outputData = reshape(result452, [1, 1, size(result452)]);
% 定义ConvLSTM网络结构
layers = [
sequenceInputLayer(size(inputData))
sequenceFoldingLayer('Name','fold')
convolution2dLayer([1 5], 32, 'Padding', [0 2])
batchNormalizationLayer
reluLayer
convolution2dLayer([1 5], 32, 'Padding', [0 2], 'DilationFactor', [2 1])
batchNormalizationLayer
reluLayer
convolution2dLayer([1 5], 32, 'Padding', [0 2], 'DilationFactor', [4 1])
batchNormalizationLayer
reluLayer
convolution2dLayer([1 5], 32, 'Padding', [0 2], 'DilationFactor', [8 1])
batchNormalizationLayer
reluLayer
convolution2dLayer([1 5], 32, 'Padding', [0 2])
batchNormalizationLayer
reluLayer
sequenceUnfoldingLayer('Name','unfold')
convolution2dLayer([1 1], 1)
regressionLayer
];
% 定义训练选项
options = trainingOptions('adam', ...
'MaxEpochs', 50, ...
'MiniBatchSize', 64, ...
'LearnRateSchedule', 'piecewise', ...
'LearnRateDropFactor', 0.1, ...
'LearnRateDropPeriod', 20, ...
'GradientThreshold', 1, ...
'Shuffle', 'every-epoch', ...
'Verbose', 1, ...
'Plots', 'training-progress');
% 训练ConvLSTM网络
net = trainNetwork(inputData, outputData, layers, options);
在这个修改后的代码中,我添加了一个序列折叠层(sequenceFoldingLayer)和一个序列展开层(sequenceUnfoldingLayer),以将序列数据折叠成一个固定大小的向量,并将输出重新展开为序列形式。这样,您的ConvLSTM网络结构中的第一个卷积层就可以处理序列数据了。