arXiv Machine Learning By Chahana Dahal, Ashutosh Balasubramaniam, Zuobin Xiong

GONE: Structural Knowledge Unlearning via Neighborhood-Expanded Distribution Shaping

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The paper introduces GONE, a benchmark for evaluating knowledge unlearning in large language models using structured knowledge graphs, and presents Neighborhood-Expanded Distribution Shaping (NEDS), a framework that leverages graph connectivity to separate forgotten facts from their semantic neighborhood. GONE disentangles direct fact removal, reasoning-based leakage, and catastrophic forgetting, while NEDS achieves high unlearning efficacy and locality on LLaMA-3-8B and Mistral-7B. The dataset is publicly available on Hugging Face.

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