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Shaofeng Zou

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#artificial intelligence Preprint Oct 2026

Asynchronous LLM Post-Training: Group-Mass Capping and Convergence Analysis

Asynchronous reinforcement learning (RL) improves the efficiency of large language model post-training but introduces stale rollouts generated by earlier policies. Theoretical understanding of how this staleness affects convergence and how to mitigate its impact remains limited. We derive a convergence bound for GRPO-s...

Qi-Jia He, Rui-Nan Jin, Jun Luo et al. · 0 citations
#artificial intelligence Review Sep 2026

MeshHeal: Two-Timescale Self-Healing for Gray Failures in Decentralized LLM Agent Networks

Decentralized LLM-based multi-agent systems coordinate through local interactions, but an agent can remain responsive while its task-solving quality persistently degrades. Such gray failures require protecting current tasks before sufficient evidence exists to alter future routing, while still allowing recovered agents...

Ke-Ru Chen, Sen-Fon Lin, Ying-Bin Liang et al. · 0 citations
Preprint Jul 2026

Rethinking AI-Generated Text Detection: A Strong Baseline and the Distribution-Shift Problem That Remains

Across several benchmarks, it is shown that a plain, fully fine-tuned RoBERTa matches or exceeds the specialized detectors those benchmarks are built around, suggesting that progress in AI-generated text detection should be measured not only by in-distribution performance, but also by robustness under distribution shif...

Zhuoer Shen, Mingyi Wang, Shaofeng Zou et al. · 0 citations

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