文献类型：期刊文献

英文题名：Independent component analysis model utilizing de-mixing information for improved non-Gaussian process monitoring

作者：Wang, Bei[1];Yan, Xuefeng[1];Jiang, Qingchao[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Control & Optimizat Chem Proc, Minist Educ, Shanghai 200237, Peoples R China

年份：2016

卷号：94

起止页码：188

外文期刊名：COMPUTERS & INDUSTRIAL ENGINEERING

收录：;EI(收录号：20161202140911);WOS:【SCI-EXPANDED(收录号:WOS:000373541500017)】；

语种：英文

外文关键词：Multi-block strategy; Independent component analysis; De-mixing matrix; Generalized Dice's coefficient

摘要：The de-mixing matrix generated from independent component analysis (ICA) can reveal information about the relations between variables and independent components, but the traditional ICA model does not preserve the whole de-mixing information for the purpose of feature extraction and dimensionality reduction, so that some important information may be abandoned. Multi-block strategy has been improved to be an efficient method to deal with numerous data. However, the manner of dividing original data is still subject for discussion and the priori knowledge is necessary for process division. This paper proposes a totally data-driven ICA model that divides de-mixing matrix based on the Generalized Dice's coefficient and combines the results from sub-blocks using Bayesian inference. All information in de-mixing matrix is fully utilized and the ability of monitoring non-Gaussian process is improved. Meanwhile, a corresponding contribution plot is developed for fault diagnosis to find the root causes. The performance of the proposed method is illustrated through a numerical example and the Tennessee Eastman benchmark case study. (C) 2016 Elsevier Ltd. All rights reserved.