An Incremental Learning Ensemble Strategy for Industrial Process Soft Sensors

Table 2

The changes in the soft sensor accuracy during the learning process of the ILES.

Dataset	Iteration
	1	2	3	4	5	6	7	8	9	Update	OS-ELM
K1	95%	95%	95%	96%	95%	95%	97%	95%	95%	95%	56%
K2		94%	94%	96%	94%	95%	95%	94%	94%	94%	68%
K3			96%	95%	96%	96%	95%	95%	96%	97%	64%
K4				97%	96%	94%	95%	95%	96%	95%	62%
K5					96%	94%	96%	95%	95%	96%	66%
K6						95%	95%	97%	96%	96%	70%
K7							96%	96%	95%	96%	80%
K8								93%	94%	94%	88%
K9									94%	95%	88%
Update set										96%	88%
Testing set	83.2%	85%	85.1%	87%	90%	91%	91.8%	92%	93.2%	95%	90%