Evidence record 3814 · automatically gathered

Measuring the Depth of LLM Unlearning via Activation Patching

Large language model (LLM) unlearning has emerged as a crucial post-hoc mechanism for privacy protection and AI safety, yet auditing whether target knowledge is truly erased remains challenging. Existing output-level metrics fail to detect when this knowledge remains recoverable from internal representations. Recent white-box studies reveal such residual knowledge but often rely on auxiliary training or dataset-specific adaptations, leaving no generalizable metric. To address these limitations,

Record details

Published: 23 May 2026
Source: arXiv
Category: Research
Topics: Safety & alignment · Privacy · Transparency
Retrieved: 14 July 2026

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ethics.ai (23 May 2026), “Measuring the Depth of LLM Unlearning via Activation Patching,” evidence record 3814, https://ethics.ai/record/3814 (originally published by arXiv).

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