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Chen-Xi Yuan

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#artificial intelligence Preprint Oct 2026

From Uncertainty to Action: Learning to Steer LLM Agents

Steering an LLM agent means deciding whether to correct it, at which step, and with which mechanism. Uncertainty is often used to decide when to correct an agent, but whether it can guide these decisions remains unclear. We steer agent trajectories separately at every non-terminal step with each of four mechanisms and...

Han Li, Jinhao Duan, Guan-Hua Zhu et al. · 0 citations
#natural language process... Preprint Oct 2026

HeadEdit: Calibrating Language Model Behavior Through the Frozen Unembedding Matrix

Alignment does not eliminate behavioral errors in language models. Models may still refuse benign requests, call unnecessary tools, or yield to false user claims. Current methods mitigate such errors as a computation problem, and rarely explore if the desired behavior is already encoded in the model's representation. M...

Zirui He, Hai-Yan Zhao, Jing-Yu Hu et al. · 0 citations

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