Author

Xiaolin Huang

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#artificial intelligence Preprint Sep 2026

When and Where to Trust the Teacher: Unifying On-Policy Distillation and GRPO through Entropy-Calibrated Credit Assignment

UECR-GRPO is introduced, which integrates verifier and teacher signals within a single GRPO-style update at both the response and token levels and uses the signed teacher--old-policy token gap to redistribute the verifier-derived component.

Jie Zhang, Jing-Xiao Yang, Zhehao Huang et al. · 1 citation

Preprint Aug 2026

InjecMEM: Memory Injection Attack on LLM Agent Memory Systems

This work proposes InjecMEM, a novel memory injection attack paradigm that requires only a single interaction to steer later responses of related queries toward a pre-specified output and achieves reliable topic-conditioned retrieval and targeted generation.

Hanling Tian, Gengyu Zhang, Zeyang Sha et al. · 6 citations