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CAPMix: Robust KPI Anomaly Detection for AIOps in Noisy and Dynamic Environments

Primary research

#1257

T1new
Topic
unassigned (set during synthesis)
First seen
2026-08-04 07:15:58
Last seen
2026-08-04 07:15:58

Source raw items (1)

  • arXiv2026-08-04 07:15:23
    CAPMix: Robust KPI Anomaly Detection for AIOps in Noisy and Dynamic Environments

    Time-series anomaly detection is crucial in AIOps for maintaining large-scale service reliability. In production, streams of Key Performance Indicators (KPI) are high-dimensional, non-stationary, and affected by noise, deployment changes, and latent anomalies, making real failures hard to distinguish from benign variation. Most existing methods assume either normality (learning from "normal" history) or rely on injected anomalies for training. Yet injected patterns often misalign with real failure modes, skewing decision boundaries -- aka. Anomaly Shift. We propose CAPMix, a controllable anomaly augmentation framework with prior-guided injection for realistic temporal behaviors. CAPMix combines label revision and dual-space mixup to enhance robustness under contaminated and mixed data. CAPMix consistently outperforms state-of-the-art methods on public AIOps and time-series benchmarks. It has been deployed in Kuaishou's large-scale production system, reducing false alarms and improving monitoring reliability. A real-world dataset is also released to enrich the research on robust KPI anomaly detection.