Author

Yi Wei

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Preprint Aug 2026

JAPE: Joint Anomaly Prediction and Intrinsic Explanation in Multivariate Time Series

Multivariate time-series anomaly prediction aims to identify whether and when anomalies will occur over a future horizon from historical observations. Existing methods primarily characterize anomalies as deviations in future numerical values, which may overlook subtle dependency changes induced by weak anomaly precurso...

Yi Wei, Yuan-Yuan Yao, Lu Chen et al. · 0 citations

Jul 2026

EviBack: Search-Agent Reinforcement Learning via Evidence-Constrained Teacher Backoff

EviBack is presented, an evidence- constrained Teacher backoff that supplies auxiliary super- vision to such groups while preserving verifiable Actor re- wards, and separates evidence assessment from answer refine- ment, preventing reference answers from overriding evidence- insufficiency judgments.

Xiao Ma, Zhiquan Hu, Yi Wei et al. · arXiv.org · 0 citations