Intelligent Fault Diagnosis of Bearing Based on Convolutional Neural Network and Bidirectional Long Short-Term Memory

Table 7

Test results by different methods.

Model	Average recognition rate (%)	Standard deviation	Calculation time (seconds)
SVM	58.5	0.0087	804.729
RF	75.44	0.008	68.25
DNN	75.38	0.0068	42.94
CNN	97.29	0.0068	506.475
CNN-LSTM	99.05	0.0056	810.311
CNN-BLSTM	99.2	0.0029	817.506