Table 6 Hyperparameters, search spaces, and optimized values for the LSTM autoencoder model for unsupervised learning

From: Corrosion type identification in flanged joints using recurrent neural networks on electrochemical noise measurements

Model

Hyperparameters

Search space

Optimized value

LSTM autoencoder

Sequence length (seq_length)

10–1500

20, 700

number of hidden layers (num_layers)

1 to 3

2

number of units (units)

32 to 128

50, 50

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