Bearing Degradation Process Prediction Based on the Support Vector Machine and Markov Model

Table 5

The RMSE results of different prediction methods.

Method	The features extracted by PCA are utilized by HMM prediction model	The features directly used as the input of the Neural Network prediction model	The features extracted by PCA as the input of the SVM prediction model	The proposed method
RMSE	0.0698	0.1023	0.0521	0.0091