[Retracted] Fault Diagnosis of Automobile Engine Based on Improved BP Neutral Network

Table 5

Diagnostic errors of the two neural networks for each group of data.

Diagnostic number	Evaluation index formula	Traditional BP neural network	Improved BP neural network
1		0.0292	0.0004
2		0.0161	0.0010
3		0.0260	0.0007
4		0.0278	0.0024
5		0.0135	0.0009
6		2.7461	0.0005
7		0.0247	1.6311
8		1.2756	0.0005
9		1.2646	0.0004
10		0.0087	0.0016
11		0.0535	0.0002
12		0.0266	0.0002
13		2.0112	0.0009
14		0.0113	0.0022
15		0.0161	0.0002
16		2.0109	0.0006