## Journal of Applied Mathematics

### Fault Detection and Diagnosis in Process Data Using Support Vector Machines

#### Abstract

For the complex industrial process, it has become increasingly challenging to effectively diagnose complicated faults. In this paper, a combined measure of the original Support Vector Machine (SVM) and Principal Component Analysis (PCA) is provided to carry out the fault classification, and compare its result with what is based on SVM-RFE (Recursive Feature Elimination) method. RFE is used for feature extraction, and PCA is utilized to project the original data onto a lower dimensional space. PCA ${T}^{2}$, SPE statistics, and original SVM are proposed to detect the faults. Some common faults of the Tennessee Eastman Process (TEP) are analyzed in terms of the practical system and reflections of the dataset. PCA-SVM and SVM-RFE can effectively detect and diagnose these common faults. In RFE algorithm, all variables are decreasingly ordered according to their contributions. The classification accuracy rate is improved by choosing a reasonable number of features.

#### Article information

Source
J. Appl. Math., Volume 2014 (2014), Article ID 732104, 9 pages.

Dates
First available in Project Euclid: 2 March 2015

https://projecteuclid.org/euclid.jam/1425305568

Digital Object Identifier
doi:10.1155/2014/732104

Zentralblatt MATH identifier
1267.70010

#### Citation

Wu, Fang; Yin, Shen; Karimi, Hamid Reza. Fault Detection and Diagnosis in Process Data Using Support Vector Machines. J. Appl. Math. 2014 (2014), Article ID 732104, 9 pages. doi:10.1155/2014/732104. https://projecteuclid.org/euclid.jam/1425305568

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