Novel K-medoids based SMOTE Integrated with Locality Preserving Projections for Fault Diagnosis

• Published in: IEEE transactions on instrumentation and measurement Vol. 71; p. 1
• Main Authors: Zhu, Qun-Xiong, Wang, Xin-Wei, Zhang, Ning, Xu, Yuan, He, Yan-Lin
• Format: Journal Article
• Language: English
• Published: New York IEEE 2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Clustering algorithms; Data imbalance; Fault diagnosis; Feature extraction; Industrial Process; Interpolation; Laplace equations; Locality Preserving Projections; Machine learning; Manifolds (mathematics); Oversampling; Principal component analysis; Sampling methods; SMOTE
• ISSN: 0018-9456; 1557-9662
• DOI: 10.1109/TIM.2022.3218551

In the field of the fault diagnosis of industrial processes, there are many problems in process data, such as missing critical fault data, high repeatability of normal state data, and poor representation of faults data, which may reduce the accuracy of fault diagnosis. In this paper, a novel K-medoids based synthetic minority over-sampling technique that combines locality preserving projections (KMS-LPP), is proposed for fault diagnosis. First, the synthetic minority sampling technology (SMOTE) is designed based on K-medoid to generate minority fault samples to address the imbalanced problem of data. Second, to extract the key fault-relevant features and reserve the local structure information at the same time, the manifold learning (ML) approach locality preserving projections (LPP) is performed to reduce the dimensionality of data. Finally, the Adaboost. M2, as an ensemble classifier, is conducted for fault classification. Simulations of the Tennessee Eastman process (TEP) are performed for validation of the performance of the presented KMS-LPP method. The obtained results show that KMS-LPP has enhanced the performance of fault diagnosis due to its higher accuracy compared with traditional oversampling and feature extraction methods, which indicates the effectiveness of KMS-LPP.