MATLAB: How to extract metrics/data of the LSTM training progress

Question

While monitoring a deep learning (LSTM) training progress, how can I extract the quantities data (Training root mean square error (RMSE) , Smoothed training accuracy, Validation accuracy, Training loss, smoothed training loss, and validation loss ) at each iteration ?( suppose you want to export these data to excel).

Indeed, while training a deep (LSTM) network in matab, '' when you specify 'training-progress' as the 'Plots' value in trainingOptions and start network training, trainNetwork creates a figure and displays training metrics at every iteration. Each iteration is an estimation of the gradient and an update of the network parameters. If you specify validation data in trainingOptions, then the figure shows validation metrics each time trainNetwork validates the network. The figure plots the following: Training root mean square error (RMSE) , Smoothed training accuracy, Validation accuracy, Training loss, smoothed training loss, and validation loss."

Thank you.

Best regards,

Answer 1

Hi,

You can use

[net,info] = trainNetwork(XTrain,YTrain,layers,options);

while training a network, to access 'info' struct. This struct contains information such as 'TrainingLoss', 'TrainingRMSE' and 'BaseLearnRate' for each iteration of training. You can refer to the documentation for more information.