Fault Diagnosis of WWTP Based on Improved Support Vector Machine

Wastewater treatment is a complicated process where sensors and equipment are operated at harsh conditions, and there are often long time delays in variables' response to disturbances. In this work, support vector machine is applied to diagnose fault. Because of the unbalanced distribution of the fault classes data quantity or importance, the risk functional R WLOO() with weight coefficient based on leave-one-out errors is presented; then …