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Haotian Si

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Book Open access Aug 2026

Rethinking Time Series Anomaly Detection from a Dynamic Perspective: Temporal-Frequency-Curvature Fusion

Time series anomaly detection (TSAD) plays a pivotal role in domains ranging from industrial automation to IT operations and healthcare monitoring. Despite significant advances in point-wise outlier detection, real anomalies are often not obvious spikes. Instead, they frequently manifest as mechanism shifts, subtle cha...

Hang Cui, Ze-Xin Wang, Changhua Pei et al. · 0 citations
Review 2026

Are Production Cloud Skills Adequately Tested? Measuring and Governing Skill Test Coverage in Practice

This paper develops a measurement pipeline that recovers operational obligations, organizes their workflow context, maps testcases using both user prompts and initial resource states, and produces an auditable coverage report, which measures how completely a Skill’s test suite covers its operational test obligations.

Haotian Si, Junyi Chen, Shu-Yang Yu et al. · 0 citations

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