Error when trying lstm regression not sure of the issue

Question

Nathaniel Porter 2021-12-9

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1606770-error-when-trying-lstm-regression-not-sure-of-the-issue

评论： Nathaniel Porter 2021-12-15

clc; clear all; close all;
%Import/Upload data
load generated_data.mat
%transposing glucose data
X1_T = X1';
%transposing insulin data
X2_T = X2';
%Separating data in training, validation and testing data
X1_train = X1_T;
%Partioning data for training
train_X1 = X1_train(1:120,:);
train_Y1 = Y1(1:120);
%DataParts = zeros(size(Train_inputX1,1), size(Train_inputX1,2),1,2); %(4500,400,1,2)
%DataParts(:,:,:,1) = real(cell2mat(Train_inputX1));
%DataParts(:,:,:,2) = imag(cell2mat(Train_inputX1)) ;
XTrain=(reshape(train_X1, [120,1,1,2289])); %Train data
%Separating and partioning for validation data
val_X1 = X1_train(121:150,:);
XVal=(reshape(val_X1, [30,1,1,2289])); %Train data
%Separating and partioning for test data
test_X1 = X1_train(151:180,:);
%Xtest=(reshape(test_X1, [120,1,1,2289])); %Train data
%Separating data in training, validation and testing data
%X2_train = X2_T;
%Partioning data for training
%train_X2 = X2_train(1:120,:);
%Separating and partioning for validation data
%val_X2 = X2_train(121:150,:);
%Separating and partioning for test data
%test_X2 = X2_train(151:180,:);
%The number of features chosen to be two representing both glucose and
%insulin
numFeatures = size(X1_T,2);
% number of hidden units represent the size of the data
numHiddenUnits = 180;
%number of classes represent different patients normal,LIS,type2....
numClasses = length(categories(categorical(Y1)));
layers = [ ...
    sequenceInputLayer(numFeatures)
    lstmLayer(numHiddenUnits,'OutputMode','sequence')
    fullyConnectedLayer(numClasses)
    softmaxLayer
    regressionLayer];
options = trainingOptions('adam', ...
    'MaxEpochs',60, ...
    'GradientThreshold',2, ...
    'Verbose',0, ...
    'LearnRateDropFactor',0.2, ...
    'LearnRateDropPeriod',5, ...
    'Plots','training-progress');
net = trainNetwork(X1_train',categorical(Y1),layers,options);

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KSSV 2021-12-9

You have to specify the error. We don't have your data and also we don't know your error to help you.

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Answer 1

yanqi liu 2021-12-13

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1606770-error-when-trying-lstm-regression-not-sure-of-the-issue#answer_853945

在 MATLAB Online 中打开

yes，sir，may be change the layers，such as

clc; clear all; close all;
%Import/Upload data
load generated_data.mat
%transposing glucose data
X1_T = X1';
%transposing insulin data
X2_T = X2';
rand('seed', 0)
ind = randperm(size(X1_T, 1));
X1_T = X1_T(ind, :);
Y1 = Y1(ind);
%Separating data in training, validation and testing data
X1_train = X1_T;
numFeatures = size(X1_T,2);
% number of hidden units represent the size of the data
numHiddenUnits = 180;
%number of classes represent different patients normal,LIS,type2....
numClasses = length(categories(categorical(Y1)));
layers = [ ...
    sequenceInputLayer(numFeatures)
    lstmLayer(100,'OutputMode','sequence')
    dropoutLayer(0.3)
    lstmLayer(50,'OutputMode','sequence')
    dropoutLayer(0.2)
    fullyConnectedLayer(numClasses)
    softmaxLayer
    classificationLayer];
options = trainingOptions('adam', ...
    'MaxEpochs',3000, ...
    'GradientThreshold',0.2, ...
    'Verbose',0, ...
    'LearnRateDropFactor',0.2, ...
    'LearnRateDropPeriod',5, ...
    'Plots','training-progress');
net = trainNetwork(X1_train',categorical(Y1),layers,options);