Nullify: Null-Space Activation Steering for Training-Free LLM Unlearning
By avoiding weight updates entirely, Nullify serves as an efficient, plug-and-play inference-time intervention framework for LLM unlearning, and matches or surpasses established baselines in forget quality while achieving near-lossless preservation of model utility.
Wei Zhai, Xiang Liu, Qiang Huang et al.
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