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Azzera filtri

How many LSTM blocks are there in bidirectional LSTM layers?

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Hi,
How can i relate hidden layers with number of lstm blocks?
inputSize = 17
numHiddenUnits = 50;
numClasses = 2;
maxEpochs = 15;
miniBatchSize = 1;
layers = [ ...
sequenceInputLayer(inputSize)
bilstmLayer(numHiddenUnits,'OutputMode','last')
fullyConnectedLayer(numClasses)
softmaxLayer
classificationLayer]
options = trainingOptions('adam', ...
'ExecutionEnvironment','auto', ...
'GradientThreshold',1, ...
'MaxEpochs',maxEpochs, ...
'MiniBatchSize',miniBatchSize, ...
'SequenceLength','longest', ...
'Shuffle','never', ...
'Verbose',0, ...
'Plots','training-progress');

Risposte (1)

Shantanu Dixit
Shantanu Dixit il 20 Giu 2023
Hi Shweta,
Assuming that by hidden layers you mean numHiddenUnits, the numHiddenUnits refer to the number of LSTM blocks per direction (same for both LSTM and BiLSTM). So here the number of LSTM blocks are 50 (numHiddenUnits = 50).
Refer the documentation for lstm and bilstm layer:

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