FAULT DIAGNOSIS BASED ON MIXED LABEL INFORMATION LOCALITY PRESERVING PROJECTIONS DIMENSION REDUCTION

YUAN LongYin; ZHANG QianTu; LEI Jing; WU ShengCai

doi:10.16579/j.issn.1001.9669.2019.05.007

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FAULT DIAGNOSIS BASED ON MIXED LABEL INFORMATION LOCALITY PRESERVING PROJECTIONS DIMENSION REDUCTION

更新时间：2022-09-22

- FAULT DIAGNOSIS BASED ON MIXED LABEL INFORMATION LOCALITY PRESERVING PROJECTIONS DIMENSION REDUCTION
- Journal of Mechanical Strength Vol. 41, Issue 5, Pages: 1054-1059(2019)
- 作者机构：
  
  1. 重庆商务职业学院出版传媒系
  2. 驻重庆地区第五军代室
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2019.05.007
  CLC：
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YUAN LongYin, ZHANG QianTu, LEI Jing, et al. FAULT DIAGNOSIS BASED ON MIXED LABEL INFORMATION LOCALITY PRESERVING PROJECTIONS DIMENSION REDUCTION. [J]. 41(5):1054-1059(2019)
DOI：

YUAN LongYin, ZHANG QianTu, LEI Jing, et al. FAULT DIAGNOSIS BASED ON MIXED LABEL INFORMATION LOCALITY PRESERVING PROJECTIONS DIMENSION REDUCTION. [J]. 41(5):1054-1059(2019) DOI： 10.16579/j.issn.1001.9669.2019.05.007.

摘要

为更好的保持高维故障特征的局部流形结构,对局部保持映射(LPP)进行改进,并提出了基于融合类别信息局部保持映射(MLILPP)维数约简的故障诊断新方法。MLILPP融合样本类别信息构造了相似性矩阵和差异性矩阵。利用相似性矩阵保持降维前后同类样本之间的局部结构,利用差异性矩阵扩大降维后异类相似样本彼此之间的距离。实现了数据结构的有效保持,能够获得更有效的低维流形,提高了故障诊断的精度。液压泵故障诊断实验验证了该方法的有效性。

Abstract

In order to preserve the local structure of high dimension fault feature better, locality preserving projections（LPP） are improved and a fault diagnosis method based mixed label information locality preserving projections（MLILPP） for dimension reduction is proposed. MLILPP constructed similarity matrix and divergence matrix based on label information. The similarity matrix is used to preserve the local structure of the same-label samples before and after dimension reduction, whereas the divergence matrix is used to enlarge the distance between the different-label samples after dimension reduction. As a result, data structure is retained effectively, better low dimension structure can be obtained, and higher fault diagnosis accuracy can achieved. The experiment results of hydraulic pump fault diagnosis verified the effectiveness of the method.

关键词

故障诊断局部保持映射类别信息液压泵

Keywords

Fault diagnosisLocality preserving projectionsLabel informationHydraulic pump

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