A Review on Self-Supervised Learning for Time Series Anomaly Detection: Recent Advances and Open Challenges

Fuente: arXiv
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Hauptverfasser: Sánchez-Ferrera, Aitor, Calvo, Borja, Lozano, Jose A.
Format: Preprint
Veröffentlicht: 2025
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author Sánchez-Ferrera, Aitor
Calvo, Borja
Lozano, Jose A.
author_facet Sánchez-Ferrera, Aitor
Calvo, Borja
Lozano, Jose A.
contents Time series anomaly detection presents various challenges due to the sequential and dynamic nature of time-dependent data. Traditional unsupervised methods frequently encounter difficulties in generalization, often overfitting to known normal patterns observed during training and struggling to adapt to unseen normality. In response to this limitation, self-supervised techniques for time series have garnered attention as a potential solution to undertake this obstacle and enhance the performance of anomaly detectors. This paper presents a comprehensive review of the recent methods that make use of self-supervised learning for time series anomaly detection. A taxonomy is proposed to categorize these methods based on their primary characteristics, facilitating a clear understanding of their diversity within this field. The information contained in this survey, along with additional details that will be periodically updated, is available on the following GitHub repository: https://github.com/Aitorzan3/Awesome-Self-Supervised-Time-Series-Anomaly-Detection.
format Preprint
id arxiv_https___arxiv_org_abs_2501_15196
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Review on Self-Supervised Learning for Time Series Anomaly Detection: Recent Advances and Open Challenges
Sánchez-Ferrera, Aitor
Calvo, Borja
Lozano, Jose A.
Machine Learning
Time series anomaly detection presents various challenges due to the sequential and dynamic nature of time-dependent data. Traditional unsupervised methods frequently encounter difficulties in generalization, often overfitting to known normal patterns observed during training and struggling to adapt to unseen normality. In response to this limitation, self-supervised techniques for time series have garnered attention as a potential solution to undertake this obstacle and enhance the performance of anomaly detectors. This paper presents a comprehensive review of the recent methods that make use of self-supervised learning for time series anomaly detection. A taxonomy is proposed to categorize these methods based on their primary characteristics, facilitating a clear understanding of their diversity within this field. The information contained in this survey, along with additional details that will be periodically updated, is available on the following GitHub repository: https://github.com/Aitorzan3/Awesome-Self-Supervised-Time-Series-Anomaly-Detection.
title A Review on Self-Supervised Learning for Time Series Anomaly Detection: Recent Advances and Open Challenges
topic Machine Learning
url https://arxiv.org/abs/2501.15196