Integrating independent component analysis and support vector machine for multivariate process monitoring

CC Hsu, MC Chen, LS Chen - Computers & Industrial Engineering, 2010 - Elsevier
CC Hsu, MC Chen, LS Chen
Computers & Industrial Engineering, 2010Elsevier
This study aims to develop an intelligent algorithm by integrating the independent
component analysis (ICA) and support vector machine (SVM) for monitoring multivariate
processes. For developing a successful SVM-based fault detector, the first step is feature
extraction. In real industrial processes, process variables are rarely Gaussian distributed.
Thus, this study proposes the application of ICA to extract the hidden information of a non-
Gaussian process before conducting SVM. The proposed fault detector will be implemented …
This study aims to develop an intelligent algorithm by integrating the independent component analysis (ICA) and support vector machine (SVM) for monitoring multivariate processes. For developing a successful SVM-based fault detector, the first step is feature extraction. In real industrial processes, process variables are rarely Gaussian distributed. Thus, this study proposes the application of ICA to extract the hidden information of a non-Gaussian process before conducting SVM. The proposed fault detector will be implemented via two simulated processes and a case study of the Tennessee Eastman process. Results demonstrate that the proposed method possesses superior fault detection when compared to conventional monitoring methods, including PCA, ICA, modified ICA, ICA–PCA and PCA–SVM.
Elsevier
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