Author

Liangming Pan

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#artificial intelligence Jul 2026

Where Steering Signals Come From: Activation Source Selection in Activation Steering

Tail subtraction is introduced, which removes shared prompt and continuation semantics from boundary states and yields cleaner, more stable steering signals, and suggests that steering depends on representations of what the model is about to do, not merely on what has already appeared.

Jiaran Ye, Lingxu Ran, Zijun Yao et al. · arXiv.org · 2 citations

#artificial intelligence Preprint Feb 2026

ASA: Backbone-Training-Free Representation Engineering for Tool-Calling Agents

Activation Steering Adapter (ASA), a training-free, inference-time controller that performs a single-shot mid-layer intervention and targets tool domains via a router-conditioned mixture of steering vectors with a probe-guided signed gate to amplify true intent while suppressing spurious triggers is proposed.

Youjin Wang, Run Zhou, Rong Fu et al. · 4 citations · ⚡2