Research Article

End-Point Static Control of Basic Oxygen Furnace (BOF) Steelmaking Based on Wavelet Transform Weighted Twin Support Vector Regression

Table 7

Performance comparisons of C/T prediction models with four methods.

ModelCriteriaWTWTSVRTSVRv-TSVRAsy v-TSVRKNNWTSVR

C_model (±0.005 %)RMSE0.00230.00260.00260.00260.0025
MAE0.00260.00310.00310.00310.0030
SSE/SST1.19771.60711.56751.52141.4680
SSR/SST0.69300.46160.35140.38350.3500
HR,%9282848488
Time, s0.45230.29150.37060.33510.5352

T_model (±10 °C)RMSE4.02104.20704.36304.10134.0272
MAE4.73805.03635.14614.79704.7165
SSE/SST1.72971.89352.03651.79961.7351
SSR/SST0.79680.66530.75780.91410.8338
HR,%9694929696
Time, s0.09770.11810.08610.05380.2393

DHR,%9078788084