Prediction Model Design for Vibration Severity of Rotating Machine Based on Sequence-to-Sequence Neural Network

Table 3

Comparison between the BP, LSTM-Seq2Seq, and the GRU-Seq2seq models.

Model	RMSE ()		MAPE (%)	MSE (%)	Convergence time (s)
BP	First	2.94314	32.441	30.0617	2
	Second	2.96978	32.426
LSTM-Seq2seq	First	0.11228	1.1799	2.7626	268
	Second	0.11544	1.2147
GRU-Seq2seq	First	0.00617	0.1204	0.4948	70
	Second	0.00676	0.1324