Recursive Gaussian process regression model for adaptive quality monitoring in batch processes

L Zhou, J Chen, Z Song - Mathematical Problems in …, 2015 - Wiley Online Library
In chemical batch processes with slow responses and a long duration, it is time‐consuming
and expensive to obtain sufficient normal data for statistical analysis. With the persistent …

Recursive Gaussian mixture models for adaptive process monitoring

J Zheng, Q Wen, Z Song - Industrial & Engineering Chemistry …, 2019 - ACS Publications
Gaussian mixture models (GMM) have recently been introduced and widely used for
process monitoring. This paper intends to develop a new recursive GMM model for adaptive …

Online predictive monitoring and prediction model for a periodic process through multiway non-Gaussian modeling

C Yoo, M Kim, S Hwang, Y Jo, J Oh - Chinese Journal of Chemical …, 2008 - Elsevier
A new on-line predictive monitoring and prediction model for periodic biological processes
is proposed using the multiway non-Gaussian modeling. The basic idea of this approach is …

Nonlinear multiphase batch process monitoring and quality prediction using multi-way concurrent locally weighted projection regression

Y Zhang, J Cao, X Zhao, Y Hui - Chemometrics and Intelligent Laboratory …, 2023 - Elsevier
The batch process has the characteristics of nonlinear and multiphase due to variation
operation conditions. Nonlinear and multiphase modeling of the batch process is very …

A supervised adaptive resampling monitoring method for quality indicator in time-varying process

Y Tao, H Shi, B Song, X Zhou… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In real-world industrial process, the system state is time-varying due to the changeable
operating environment, and thus, a steady monitoring model is unsuitable in such a context …

Identification of robust Gaussian Process Regression with noisy input using EM algorithm

A Daemi, Y Alipouri, B Huang - Chemometrics and Intelligent Laboratory …, 2019 - Elsevier
In the traditional formulation of Gaussian Process Regression (GPR), the input data is
assumed to be noise-free. However, this assumption is not always realistic in many practical …

Sequential local-based Gaussian mixture model for monitoring multiphase batch processes

J Liu, T Liu, J Chen - Chemical engineering science, 2018 - Elsevier
To address the incapability of using a single model to monitor multiphase batch processes
with varying characteristics in different phases, a sequential local-based Gaussian mixture …

Adaptive soft sensor development based on online ensemble Gaussian process regression for nonlinear time-varying batch processes

H Jin, X Chen, L Wang, K Yang… - Industrial & Engineering …, 2015 - ACS Publications
Traditional soft sensors may be ill-suited for batch processes because they cannot efficiently
handle process nonlinearity and/or time-varying changes as well as provide the prediction …

Enhanced process comprehension and statistical analysis for slow-varying batch processes

C Zhao, F Wang, F Gao, Y Zhang - Industrial & engineering …, 2008 - ACS Publications
Under the influence of various exterior factors, batch processes commonly involve normal
slow variations over batches, in which the changing underlying behaviors make their …

Transfer learning based on incorporating source knowledge using Gaussian process models for quick modeling of dynamic target processes

K Wang, J Chen, L Xie, H Su - Chemometrics and Intelligent Laboratory …, 2020 - Elsevier
To maintain optimum economic process performance, a good process model is the
cornerstone of an optimal scheduling strategy and controller design. Up to now, approaches …