期刊
JOURNAL OF CHEMOMETRICS
卷 30, 期 7, 页码 377-385出版社
WILEY
DOI: 10.1002/cem.2803
关键词
fault detection and identification; semi-supervised Laplacian regularization; kernel partial least squares; data-based process monitoring; Hot Galvanizing Pickling Waste Liquor Treatment
类别
资金
- China's National 973 program [2009CB320600]
- NSF in China [61325015, 61273163]
In this paper, fault detection and identification methods based on semi-supervised Laplacian regularization kernel partial least squares (LRKPLS) are proposed. In Laplacian regularization learning framework, unlabeled and labeled samples are used to improve estimate of data manifold so that one can establish a more robust data model. We show that LRKPLS can avoid the over-fitting problem which may be caused by sample insufficient and outliers present. Moreover, the proposed LRKPLS approach has no special restriction on data distribution, in other words, it can be used in the case of nonlinear or non-Gaussian data. On the basis of LRKPLS, corresponding fault detection and identification methods are proposed. Those methods are used to monitor a numerical example and Hot Galvanizing Pickling Waste Liquor Treatment Process (HGPWLTP), and the cases study show effeteness of the proposed approaches. Copyright (c) 2016 John Wiley & Sons, Ltd.
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