Quality-Related Process Monitoring Based on Total Kernel PLS Model and Its Industrial Application

Table 1

Meaning of different sections of Φ.

Section	Description
Φ𝑦	The 𝐘-related part of Φ which is responsible for predicting 𝐘
Φ𝑜	The part of Φ that is orthogonal to 𝐘 in original 𝐓 of KPLS
Φ𝑟𝑝	The principal part of Φ𝑟 which represents a large variation in Φ𝑟
Φ𝑟𝑟	The residual part which is not excited in Φ