arXiv Computation and Language By Olga Ohrimenko

Eternal Sunshine of the Spotless Mind: Systematically Erasing LLM's Memories

Read the original on arXiv Computation and Language →

The paper investigates whether large language models (LLMs) that store persistent memories can truly forget information upon user request. It shows that existing LLMs cannot delete such memories even when they claim to have forgotten them, and that simply removing matching messages is ineffective due to message dependencies. The authors introduce DeLLM, a framework that builds relevant context dynamically and uses a provenance graph to identify which messages must be removed, achieving a high deletion rate while preserving utility.

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