(479c) Nonlinear SVM-Based Feature Selection for Fault Detection and Diagnosis of Continuous Processes
Process monitoring of continuous processes represents a key potential application of these theoretical and methodological advances in nonlinear support vector-based feature selection. Fault detection and diagnosis are specific aspects of process monitoring that can be addressed by using SVM classification and will benefit from the developed platform for feature selection. To this end, specific two-class SVM models are trained to detect known faults, while one-class support vector data descriptors are used to characterize normal operations. In these models, the manipulated and measured variables of the process compose our input feature space, and instances of normal and faulty operation are used as training samples for SVM models. The developed platform for support vector-based feature selection is then used to improve the accuracy of fault detection models, as well as to perform fault diagnosis. We present results for the Tennessee Eastman [9,10] process as a case study and compare our approach to existing approaches for fault detection and diagnosis.
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