A Grey-BPNN Model for Evaluating the Competitiveness of Chinese Contractors in the High-Speed Rail Market in Europe

Table 8

Error of the Grey-BPNN model.

Rail equipment suppliers	Target output	Network output	Relative error
CRRC	0.9136	0.9136	0.0000
Bombardier	0.8930	0.8930	0.0000
Alstom	0.8984	0.9286	0.0336
Finmeccanica	0.9200	0.9476	0.0300
Siemens	0.9552	0.9552	0.0000
Kawasaki	0.9017	0.9017	0.0000
Hyundai	0.7255	0.7255	0.0000