Figure 1
From: Prediction of Filamentous Sludge Bulking using a State-based Gaussian Processes Regression Model
The schematic of construction of prediction model and fault prognosis (SVI: sludge volume index; OS GPR: One-step Gaussian Processes Regression; MS GPR: Multi-step Gaussian Processes Regression; y: SVI; y−: SVI − 2σ; y+: SVI + 2σ).
