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Author

Zi-Lin Xiao

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Preprint Aug 2026

SoftmaxGRPO: Learning to Reason using Softmax Advantage Group Estimation

Softmax Advantage Group Estimation (SoftmaxGRPO), a drop-in alternative that replaces z-score-normalized group advantages with temperature-scaled softmax advantages, keeping weights bounded regardless of prompt difficulty, is introduced.

Jefferson Hernandez, Jaywon Koo, Zi-Lin Xiao et al. · 0 citations
#artificial intelligence Open access Feb 2026

A Data-Driven Multimodal Method for Early Detection of Coordinated Abnormal Behaviors in Live-Streaming Platforms

The proposed MM-FGDNet framework provides an effective and scalable data-driven artificial intelligence solution for early detection of coordinated abnormal behaviors in live-streaming systems and confirms the reliable identification of the "weak-signal” stage.

Jingwen Luo, Pinrui Zhu, Yi-Yan Wang et al. · 1 citation

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