LIU Shurui, PENG Hui, LI Shuai, et al. Fault detection based on IJB-PCA-ICA[J]. CIESC Journal, 2018, (12): 5146-5154.
DOI:
LIU Shurui, PENG Hui, LI Shuai, et al. Fault detection based on IJB-PCA-ICA[J]. CIESC Journal, 2018, (12): 5146-5154.DOI: 10.11949/j.issn.0438-1157.20180643.
In the view of the high dimensionality and the distribution complexity of modern industrial data
a fault detection method based on IJB-PCA-ICA (improved Jarque-Bera-principal component analysis-independent component analysis) is proposed. Through the method of Jarque-Bera test (J-B test)
the original data are divided into Gaussian part
non-Gaussian part and semi-Gaussian part. The semi-Gaussian part divided from those variables with not obvious Gaussianity or non-Gaussianity is weighted to participate into Gaussian subspace and non-Gaussian subspace by the Gaussian confidence probability. After the partition by the correlation and principal component projection
the statistics of the Gaussian and non-Gaussian subspaces are obtained by PCA and ICA
respectively. Then the Bayesian inference is applied to obtain the comprehensive statistics for fault detection.