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$C$-$\Delta\Theta$: Circuit-Restricted Weight Arithmetic for Selective Refusal
从电路层面微调权重，让大模型学会选择性拒绝——AI安全的新思路。
arXiv:2602.04521v2 Announce Type: replace Abstract: Modern deployments require LLMs to enforce safety policies at scale, yet many controls rely on inf…