Author

Yuxuan Huang

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#artificial intelligence Preprint Oct 2026

Does Your Generalist Skill Optimizer Really Incentivize Agentic Tasks? Rethinking Skill Optimization via Bipartite Attribution

BiPA is introduced, which replays an optimizer's acceptance rule on candidates identical to its seed to measure what selection alone reports, and records each episode as a bipartite graph of turns and the text they read to trace extra input tokens to the behavior behind them.

Jia-Wei Zhou, Bo Peng, Yuxuan Huang et al. · 0 citations

Preprint Aug 2026

Gradient Immunity: Null-Space Resistance to Malicious Fine-Tuning

A Unidirectional Safety Gate (USG) is proposed, instantiated as a Null Space Cubic Layer together with an Inverse Adapter inserted after the final Transformer layer, suggesting that release-time representation-space blocking can raise the cost of malicious downstream adaptation without requiring downstream cooperation.

Yuxuan Huang, Xingyu Zeng, Tian-Hang Zheng et al. · 0 citations