An LSTM-Autoencoder Architecture for Anomaly Detection Applied on Compressors Audio Data

Table 15

Computational time comparison among employed models (created by authors).

	Total train time (s)	Avg. epoch time (s) (in 50 epochs)
GRU	52	1.04
LSTM	52	1.04
Stacked LSTM	56	1.12
Stacked GRU	55	1.1
LSTM-AE	801	16.02