Towards Principled Continual Anomaly Detection: A Systematic Framework and Benchmark Scenarios

Abstract:Continual anomaly detection (CAD) studies how models can adapt to evolving data distributions while retaining performance on previously observed regimes. CAD benchmarks, however, depend critically on how tasks are defined, filtered, ordered, and validated. In tabular domains, task boundaries are rarely given, and arbitrary splits can create unlearnable, redundant, or overly transferable tasks that obscure genuine continual-learning behavior. To this end, we introduce a systematic framework for reproducible benchmark scenario design from existing tabular anomaly-detection datasets. The framework discovers candidate tasks, filters unsuitable tasks, and derives principled orderings that expose diverse dynamics. The framework allows us to deliver five benchmark-ready scenarios from three large-scale cybersecurity anomaly detection datasets, yielding both single-dataset and multi-dataset CAD settings.

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

arXiv:2607.18289 [cs.LG]

(or arXiv:2607.18289v1 [cs.LG] for this version)

https://doi.org/10.48550/arXiv.2607.18289 Focus to learn more arXiv-issued DOI via DataCite

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