Data Preprocessing Method and Fault Diagnosis Based on Evaluation Function of Information Contribution Degree

Table 1

Neural network fitting results before and after the parameter update.

Original Data T	The error rate algorithm fitting (%)
	0.99T	1.00T	1.02T	1.05T
BPNN	1.33	0.88	2.16	4.86
Kalman-BPNN	0.88	0.89	0.93	1.01