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