Online soft sensor design using local partial least squares models with adaptive process state partition

W Shao, X Tian, P Wang, X Deng, S Chen - Chemometrics and Intelligent …, 2015 - Elsevier
We propose a soft sensing method using local partial least squares models with adaptive
process state partition, referring to as the LPLS-APSP, which is capable of effectively …

Adaptive soft sensor for quality prediction of chemical processes based on selective ensemble of local partial least squares models

W Shao, X Tian - Chemical Engineering Research and Design, 2015 - Elsevier
This paper proposes an adaptive soft sensing method based on selective ensemble of local
partial least squares models, referring to as the SELPLS, for quality prediction of nonlinear …

Highly-overlapped, recursive partial least squares soft sensor with state partitioning via local variable selection

DV Poerio, SD Brown - Chemometrics and Intelligent Laboratory Systems, 2018 - Elsevier
We report the use of a soft sensor ensemble based on recursive partial least squares with a
large number of overlapping models. The proposed method uses process memory …

Local partial least squares based online soft sensing method for multi-output processes with adaptive process states division

W Shao, X Tian, P Wang - Chinese Journal of Chemical Engineering, 2014 - Elsevier
Local learning based soft sensing methods succeed in coping with time-varying
characteristics of processes as well as nonlinearities in industrial plants. In this paper, a …

Adaptive soft sensor ensemble for selecting both process variables and dynamics for multiple process states

N Yamada, H Kaneko - Chemometrics and Intelligent Laboratory Systems, 2021 - Elsevier
To improve the predictive ability of soft sensors in chemical and industrial plants, the
selection of process variables and consideration of dynamics in the processes have been …

Ensemble locally weighted partial least squares as a just‐in‐time modeling method

H Kaneko, K Funatsu - AIChE Journal, 2016 - Wiley Online Library
The predictive ability of soft sensors, which estimate values of an objective variable y online,
decreases due to process changes in chemical plants. To reduce the decrease of predictive …

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 …

Data-driven soft sensor approach for online quality prediction using state dependent parameter models

B Bidar, J Sadeghi, F Shahraki… - … and Intelligent Laboratory …, 2017 - Elsevier
The goal of this paper is to design and implementation of a new data-driven soft sensor that
uses state dependent parameter (SDP) models to improve product quality monitoring. The …

Adaptive soft sensor for online prediction and process monitoring based on a mixture of Gaussian process models

R Grbić, D Slišković, P Kadlec - Computers & chemical engineering, 2013 - Elsevier
Linear models can be inappropriate when dealing with nonlinear and multimode processes,
leading to a soft sensor with poor performance. Due to time-varying process behaviour it is …

A comparative study of just-in-time-learning based methods for online soft sensor modeling

Z Ge, Z Song - Chemometrics and Intelligent Laboratory Systems, 2010 - Elsevier
Most traditional soft sensors are built offline and only to be used online. In modern industrial
processes, the operation condition is changed frequently. For these time-varying processes …