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This study evaluates streaming anomaly detection methods on real-world nuclear power plant data, demonstrating that online time-series models offer superior consistency compared to batch approaches when deployed without labeled anomalies. The findings highlight the practical robustness of ensembling strategies for unsupervised monitoring in critical industrial infrastructure.
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What Streaming Anomaly Detection Finds (and Misses) in Industrial Time Series

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arXiv:2609.39232v1 Announce Type: cross Abstract: EDF relies on continuous monitoring of its power plants to detect anomalies as soon as they occur. Given the absence of a universally optimal streaming method in unsupervised settings, we compare streaming methods with state-of-the-art TSAD models deployed online on a real nuclear power plant dataset. This work also evaluates Automated Anomaly Detection in a streaming context. Results show higher consistency for online TSAD and strong robustness from ensembling strategies.

Abstract:EDF relies on continuous monitoring of its power plants to detect anomalies as soon as they occur. Given the absence of a universally optimal streaming method in unsupervised settings, we compare streaming methods with state-of-the-art TSAD models deployed online on a real nuclear power plant dataset. This work also evaluates Automated Anomaly Detection in a streaming context. Results show higher consistency for online TSAD and strong robustness from ensembling strategies.

Machine Learning (cs.LG); Artificial Intelligence (cs.AI)

arXiv:2609.39232 [cs.LG]

(or arXiv:2609.39232v1 [cs.LG] for this version)

https://doi.org/10.48550/arXiv.2609.39232 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

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