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System Development & Application
|
2078-2081

Improved weighted t-SNE algorithm and application in fault diagnosis

Xia Lisha1
Fang Huajing2
1. School of Business, University of Shanghai for Science & Technology, Shanghai 200093, China
2. School of Automation, Huazhong University of Science & Technology, Wuhan 430074, China

Abstract

This paper proposed a novel Manhattan distance based weighted t-SNE(Mwt-SNE) algorithm on the basis of improved distance in stochastic neighbor embedding(SNE). Firstly, it calculated samples Manhattan distances rather than Euclidean distance from high dimensional space for their less affections of dimension. Next, it divided these Manhattan distances into three groups with K-means clustering algorithm and implemented weighting processing separately with tabular parameter optimization method. Then it calculated similarity conditional probabilities with weighted Manhattan distances according to values category distribution. The aim of weighted Manhattan distances was to enlarge the data distinction, promote dimension reduction and enhance classification significance. Finally, it established an Mwt-SNE algorithm based on-line fault diagnosis model and the corresponding control limit with KDE. The experimental results on TE chemical process show that the proposed Mwt-SNE algorithm reduces FAR(false alarm rate) and MAR(missing alarm rate) as well as improves stability and accuracy.

Foundation Support

国家自然科学基金资助项目(61473127,71572113)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2018.12.0952
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 7
Section: System Development & Application
Pages: 2078-2081
Serial Number: 1001-3695(2020)07-032-2078-04

Publish History

[2020-07-05] Printed Article

Cite This Article

夏丽莎, 方华京. 改进的加权t-SNE算法及在故障诊断中的应用 [J]. 计算机应用研究, 2020, 37 (7): 2078-2081. (Xia Lisha, Fang Huajing. Improved weighted t-SNE algorithm and application in fault diagnosis [J]. Application Research of Computers, 2020, 37 (7): 2078-2081. )

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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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