Training plot taking very long to run

Question

Nathaniel Porter 2021-12-21

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1615105-training-plot-taking-very-long-to-run

回答： yanqi liu 2021-12-21

采纳的回答： KSSV

generated_data.mat

在 MATLAB Online 中打开

How can I improve my network to run faster and use less memory.

clc; clear all; close all;
%Import/Upload data
load generated_data.mat
% change to label vector
CS = categories(categorical(Y1));
Z1 = []; Z2 = [];
for i = 1 : length(Y1)
    Z1(i,1) = find(Y1(i)==CS);
end
for i = 1 : length(Y2)
    Z2(i,1) = find(Y2(i)==CS);
end
Yo1 = Y1;
Yo2 = Y2;
Y1 = Z1;
Y2 = Z2;
%transposing glucose data
X1_T = X1';
%Shuffling data to take randomly
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;
%Partioning data for training 70%
train_X1 = X1_train(1:120,:);
%Corresponding X(input) data to Y(output) data
train_Y1 = Y1(1:120);
%reshaping data into 4D array
XTrain=(reshape(train_X1', [2289,1,1,120])); 
%Separating and partioning for validation data 15%
val_X1 = X1_train(121:150,:);
%Corresponding X(input) data to Y(output) data
val_Y1 = Y1(121:150);
%reshaping data into 4D array
XVal=(reshape(val_X1', [2289,1,1,30])); %Train data
%Separating and partioning for test data 15%
test_X1 = X1_train(151:180,:);
%Corresponding X(input) data to Y(output) data
test_Y1 = Y1(151:180);
%reshaping data into 4D array
XTest=(reshape(test_X1', [2289,1,1,30])); %Train data
%% NETWORK ARCHITECTURE
layers = [imageInputLayer([2289 1 1])  % Creating the image layer
 convolution2dLayer([102 1],3,'Stride',1)
    batchNormalizationLayer
    reluLayer
    maxPooling2dLayer(2,'Stride',2,'Padding',[0 0 0 1])
    dropoutLayer
    fullyConnectedLayer(1)
    regressionLayer];
% Specify training options.
opts = trainingOptions('adam', ...
    'MaxEpochs',1000, ...
    'Shuffle','every-epoch', ...
    'Plots','training-progress', ...
    'Verbose',false, ...
    'ValidationData',{XVal,val_Y1},...
    'LearnRateDropFactor',0.2,...
    'LearnRateDropPeriod',5,...
    'ExecutionEnvironment', 'cpu', ...
    'ValidationPatience',Inf);
%% Train network
%net = trainNetwork(XTrain,Trainoutfinal,layers,opts);
yc = train_Y1(:);
net1 = trainNetwork(XTrain,yc,layers,opts);
%% Compare against testing Data
Ypredicted = predict(net1, XTest)
predictionError = test_Y1 - Ypredicted;
squares = predictionError.^2;
rmse = sqrt(mean(squares))
figure
scatter(Ypredicted, test_Y1,'+')
title ('True value vs Predicted Value')
xlabel ("Predicted Value")
ylabel ("True Value")
hold on
plot([-3 3], [-7 7], 'b--')