Author

Idan Yankelev

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#machine learning Dec 2025

Training-Free Policy Violation Detection via Activation-Space Whitening in LLMs

This work proposes a training-free method that operates directly on the LLM internal representations, leveraging prior evidence that decision-relevant information is encoded within them, and derives policy-violation scores directly from normalized representations of LLM hidden activations.

Oren Rachmil, Roy Betser, Itay Gershon et al. · arXiv.org · 5 citations · ⚡1