Research Article
Semi-Supervised Hybrid Local Kernel Regression for Soft Sensor Modelling of Rubber-Mixing Process
Table 2
RMSE comparison using different number of historical records.
| Nh | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Np | 43 | 12 | 13 | 17 | 19 | 20 | 24 | 25 | 27 |
| SVM | 1.621 | 1.408 | 1.156 | 1.286 | 1.174 | 2.244 | 2.251 | 1.831 | 1.961 |
| HF | 1.616 | 1.015 | 1.045 | 1.538 | 1.140 | 2.209 | 2.313 | 2.047 | 2.038 |
| SHLKR | 1.701 | 1.016 | 1.096 | 1.523 | 1.064 | 2.064 | 2.115 | 1.807 | 2.029 |
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