Modified PLS method for inferential quality control

被引：0

作者：

Kim, M ^{[1
]}

Han, IS ^{[1
]}

Han, C ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 790784, Kyungbuk, South Korea

来源：

PROCESS SYSTEMS ENGINEERING 2003, PTS A AND B | 2003年 / 15卷

关键词：

nferential model; quality control; modified PLS; correlation coefficients; variables selection;

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper presents a modified Partial Least-Squares (PLS) method that integrates an bias update scheme and an advanced cross-validation method that takes into account the correlation coefficient (CC) between the observed quality values and the predicted ones as well as into account prediction error sum of squares (PRESS) to determine the optimal number of latent variables. The modified PLS method has a great advantage that it improves the robustness of an inferential model without updating model parameters at short intervals for a very changeful chemical process with frequent changes of the operational condition or disturbance. It has shown that the proposed PLS method has a better performance when it was applied to an industrial chemical process.

引用

页码：876 / 881

页数：6

共 9 条

[1] Kinetics and related engineering aspects of catalytic liquid-phase oxidation of p-xylene to terephthalic acid [J].