The Diagnosis of the out-of-control Signals Based on LS-SVM Residual Chart

In order to interpret the out of control signals in multivariate statistical process control,it proposes a method based LS-SVM residual chart,shows the detail about the method to develop LS-SVM residual chart,the diagnosis procedure,analysis of instance and simulation.It compares the method of LS-SVM residual chart with the methods of principal component analysis.The result shows that method of LS-SVM residual chart can diagnose out-of-control variables and correctly be used in small-size samples case.