Modelling of Deformation Resistance with Big Data and Its Application in the Prediction of Rolling Force of Thick Plate

Table 2

The theoretical error and the BP error of deformation resistance for each pass.

Rolling pass	Theoretical error (%)	BP error (%)	Rolling pass	Theoretical error (%)	BP error (%)
1	−29.58%	3.96%	8	−3.56	1.22
2	−17.08%	2.05%	9	−16.60	3.03
3	−21.70%	−1.83%	10	−18.75	3.49
4	−24.26%	3.74%	11	−26.99	0.83
5	12.93%	3.94%	12	−31.80	−1.62
6	8.90%	−0.26%	13	−36.79	−2.66
7	7.40%	3.62%