Imbalance fault diagnosis under long-tailed distribution: Challenges, solutions and prospects

Z Chen, J Chen, Y Feng, S Liu, T Zhang… - Knowledge-Based …, 2022 - Elsevier
Intelligent fault diagnosis based on deep learning has yielded remarkable progress for its
strong feature representation capability in recent years. Nevertheless, in engineering …

A holistic semi-supervised method for imbalanced fault diagnosis of rotational machinery with out-of-distribution samples

Z Wu, R Xu, Y Luo, H Shao - Reliability Engineering & System Safety, 2024 - Elsevier
Fault diagnosis plays a critical role in ensuring the reliability and safety of industrial systems.
Despite the success of semi-supervised learning in fault diagnosis, challenges persist in …

A unified out-of-distribution detection framework for trustworthy prognostics and health management in renewable energy systems

W **e, T Han, Z Pei, M **e - Engineering Applications of Artificial …, 2023 - Elsevier
With the advances in artificial intelligence, there is a growing expectation of more automatic
and intelligent prognostics and health management (PHM) systems for the real-time …

Intelligent condition monitoring of industrial plants: An overview of methodologies and uncertainty management strategies

M Ahang, T Charter, O Ogunfowora, M Khadivi… - arxiv preprint arxiv …, 2024 - arxiv.org
Condition monitoring plays a significant role in the safety and reliability of modern industrial
systems. Artificial intelligence (AI) approaches are gaining attention from academia and …

Attention-embedded quadratic network (qttention) for effective and interpretable bearing fault diagnosis

JX Liao, HC Dong, ZQ Sun, J Sun… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Bearing fault diagnosis is of great importance to decrease the damage risk of rotating
machines and further improve economic profits. Recently, machine learning, represented by …

Reserving embedding space for new fault types: A new continual learning method for bearing fault diagnosis

H Zhu, C Shen, L Li, D Wang, W Huang… - Reliability Engineering & …, 2024 - Elsevier
In complex operating environments, rotating equipment may continually generate new fault
categories, affecting the safety of equipment operation, and the number of collected fault …

Self-supervised feature extraction via time–frequency contrast for intelligent fault diagnosis of rotating machinery

Y Liu, W Wen, Y Bai, Q Meng - Measurement, 2023 - Elsevier
Data-driven intelligent fault diagnosis requires a large amount of data. However, collecting
sufficient labeled data from the field is generally difficult because mechanical devices are …

Granularity knowledge-sharing supervised contrastive learning framework for long-tailed fault diagnosis of rotating machinery

S Chang, L Wang, M Shi, J Zhang, L Yang - Knowledge-Based Systems, 2024 - Elsevier
The long-tailed distribution of monitoring data poses challenges for deep learning-based
fault diagnosis (FD). Recent efforts utilizing supervised contrastive learning (SCL) and …

An adaptive fault diagnosis framework under class-imbalanced conditions based on contrastive augmented deep reinforcement learning

Q Zhao, Y Ding, C Lu, C Wang, L Ma, L Tao… - Expert Systems with …, 2023 - Elsevier
In practical scenarios, it is difficult to acquire fault data from rotating machinery, resulting in
class-imbalanced problems in the fault diagnosis field. Training a fault diagnosis model …