Research Article
Semi-Supervised Hybrid Local Kernel Regression for Soft Sensor Modelling of Rubber-Mixing Process
Table 3
RE 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 | 0.046 | 0.040 | 0.033 | 0.043 | 0.032 | 0.063 | 0.062 | 0.053 | 0.054 |
| HF | 0.044 | 0.027 | 0.028 | 0.042 | 0.031 | 0.059 | 0.061 | 0.055 | 0.055 |
| SHLKR | 0.047 | 0.028 | 0.030 | 0.041 | 0.029 | 0.056 | 0.056 | 0.048 | 0.054 |
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