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Wen-Liang Chen

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#artificial intelligence Preprint Sep 2026

Demystifying the Privacy-Utility Trade-off in LLM Interactions

By distilling a lightweight model Veilmind-4B to drive a dynamic extraction-sanitization-restoration pipeline, this approach reaches a low-leakage privacy point while preserving substantially higher response utility than existing privacy-oriented baselines, advancing the privacy-utility trade-off toward the Pareto fron...

Zhenhua Liu, Zhan-Xu Xie, Junjie Yu et al. · 1 citation
#natural language process... Preprint Aug 2026

What Makes Agent Memory Useful for Reliable Unanswerable Question Handling?

It is found that memory can improve UAQ performance in some settings, but such gains are selective rather than universal and remain fragile under dataset shift, suggesting that reliable UAQ memory depends less on storing larger amounts of experience and more on preserving transferable behavioral guidance.

Chuanyuan Tan, Junpu Yu, Yuxia Wang et al. · 0 citations

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