Research Article

Improved GSO Optimized ESN Soft-Sensor Model of Flotation Process Based on Multisource Heterogeneous Information Fusion

Figure 8

Predictive errors of soft-sensor models (ESN, GSO-ESN, and IGSO-ESN).
262368.fig.008a
(a) Concentrate grade
262368.fig.008b
(b) Flotation recovery rate