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Study reveals high LLM memorization rates in medicine, posing risks

A new study published on arXiv investigates the extent to which large language models (LLMs) memorize medical data. The research found that memorization is significantly more prevalent in LLMs adapted for medicine compared to those used in general domains. This memorization can be beneficial for retaining medical knowledge but also poses risks, such as the inadvertent reproduction of sensitive patient information and reduced model generalizability, potentially leading to misdiagnosis. The study analyzed various adaptation scenarios, including continued pre-training and fine-tuning on medical corpora and real-world clinical data from Yale New Haven Health System. AI

IMPACT Highlights potential risks of using LLMs in healthcare due to data memorization, impacting trust and safety in medical AI applications.

RANK_REASON The cluster contains an academic paper detailing research findings on LLMs. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.AI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Study reveals high LLM memorization rates in medicine, posing risks

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The cluster contains an academic paper detailing research findings on LLMs. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.AI TIER_1 English(EN) · Anran Li, Lingfei Qian, Mengmeng Du, Yu Yin, Yan Hu, Zihao Sun, Yihang Fu, Hyunjae Kim, Erica Stutz, Xuguang Ai, Qianqian Xie, Rui Zhu, Jimin Huang, Yifan Yang, Siru Liu, Yih-Chung Tham, Lucila Ohno-Machado, Hyunghoon Cho, Zhiyong Lu, Hua Xu, Qingyu Chen ·

    Memorization in Large Language Models in Medicine: Prevalence, Characteristics, and Implications

    arXiv:2509.08604v5 Announce Type: replace-cross Abstract: Large Language Models (LLMs) have demonstrated significant potential in medicine, with many studies adapting them through continued pre-training or fine-tuning on medical data to enhance domain-specific accuracy and safety…