Research Article

SPA-Based Modified Local Reachability Density Ratio wSVDD for Nonlinear Multimode Process Monitoring

Figure 4

Monitoring results for fault 11 of Mode 3 by (a) KPCA, (b) conventional SVDD, (c) LDR-wSVDD, and (d) SmLRDR-wSVDD.
(a)
(b)
(c)
(d)