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TopicsMachine Unlearning Large language models AI Capability Evaluation

Task-level metrics can overstate LLM unlearning when minimal fine-tuning restores original behavior.

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Unlearning Isn't Deletion: Investigating Reversibility of Machine Unlearning in LLMsMay 22, 2025 Untraced · nothing upstream recorded

We show that these metrics can be misleading, as models can appear to forget while their original behavior is easily restored through minimal fine-tuning.

Unlearning Isn't Deletion: Investigating Reversibility of Machine Unlearning in LLMsextraction 0.85

Abstract; 'these metrics' refers to task-level metrics like accuracy and perplexity used to assess LLM unlearning.

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