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Language model alignment is crucial for ensuring that large language models (LLMs) align with human preferences, yet it often involves sensitive user data, raising significant privacy concerns. While prior work has integrated differential…

密码学与安全 · 计算机科学 2025-05-15 Keyu Chen , Hao Tang , Qinglin Liu , Yizhao Xu

Recent large-scale natural language processing (NLP) systems use a pre-trained Large Language Model (LLM) on massive and diverse corpora as a headstart. In practice, the pre-trained model is adapted to a wide array of tasks via fine-tuning…

计算与语言 · 计算机科学 2022-09-12 Jimit Majmudar , Christophe Dupuy , Charith Peris , Sami Smaili , Rahul Gupta , Richard Zemel

As Large Language Models (LLMs) achieve remarkable success across a wide range of applications, such as chatbots and code copilots, concerns surrounding the generation of harmful content have come increasingly into focus. Despite…

计算与语言 · 计算机科学 2025-09-30 Wenjie Fu , Huandong Wang , Junyao Gao , Guoan Wan , Tao Jiang

The advancement of large language models (LLMs) has significantly enhanced the ability to effectively tackle various downstream NLP tasks and unify these tasks into generative pipelines. On the one hand, powerful language models, trained on…

计算与语言 · 计算机科学 2024-10-01 Haoran Li , Yulin Chen , Jinglong Luo , Jiecong Wang , Hao Peng , Yan Kang , Xiaojin Zhang , Qi Hu , Chunkit Chan , Zenglin Xu , Bryan Hooi , Yangqiu Song

The rapid development of language models (LMs) brings unprecedented accessibility and usage for both models and users. On the one hand, powerful LMs achieve state-of-the-art performance over numerous downstream NLP tasks. On the other hand,…

计算与语言 · 计算机科学 2024-06-04 Haoran Li , Dadi Guo , Donghao Li , Wei Fan , Qi Hu , Xin Liu , Chunkit Chan , Duanyi Yao , Yuan Yao , Yangqiu Song

The surge in interest and application of large language models (LLMs) has sparked a drive to fine-tune these models to suit specific applications, such as finance and medical science. However, concerns regarding data privacy have emerged,…

机器学习 · 计算机科学 2024-06-04 Xiao-Yang Liu , Rongyi Zhu , Daochen Zha , Jiechao Gao , Shan Zhong , Matt White , Meikang Qiu

Prompt privacy is crucial, especially when using online large language models (LLMs), due to the sensitive information often contained within prompts. While LLMs can enhance prompt privacy through text rewriting, existing methods primarily…

计算与语言 · 计算机科学 2025-11-18 Mingchen Li , Heng Fan , Song Fu , Junhua Ding , Yunhe Feng

Large language models (LLMs) have transformed natural language processing, but their ability to memorize training data poses significant privacy risks. This paper investigates model inversion attacks on the Llama 3.2 model, a multilingual…

机器学习 · 计算机科学 2025-07-08 Sathesh P. Sivashanmugam

Ensuring user privacy by synthesizing data from large language models (LLMs) tuned under differential privacy (DP) has become popular recently. However, the impact of DP fine-tuned LLMs on the quality of the language and the utility of the…

计算与语言 · 计算机科学 2025-09-16 Erion Çano , Ivan Habernal

Protecting patient privacy in clinical narratives is essential for enabling secondary use of healthcare data under regulations such as GDPR and HIPAA. While manual de-identification remains the gold standard, it is costly and slow,…

密码学与安全 · 计算机科学 2026-04-24 Michele Miranda , Xinlan Yan , Nishant Mishra , Rachel Murphy , Ameen Abu-Hanna , Sébastien Bratières , Iacer Calixto

We investigate practical and scalable algorithms for training large language models (LLMs) with user-level differential privacy (DP) in order to provably safeguard all the examples contributed by each user. We study two variants of DP-SGD…

With the rapid progress of large language models (LLMs), many downstream NLP tasks can be well solved given appropriate prompts. Though model developers and researchers work hard on dialog safety to avoid generating harmful content from…

计算与语言 · 计算机科学 2023-11-02 Haoran Li , Dadi Guo , Wei Fan , Mingshi Xu , Jie Huang , Fanpu Meng , Yangqiu Song

Large language models (LLMs) do not preserve privacy at inference-time. The LLM's outputs can inadvertently reveal information about the model's context, which presents a privacy challenge when the LLM is augmented via tools or databases…

计算与语言 · 计算机科学 2026-02-03 Rushil Thareja , Preslav Nakov , Praneeth Vepakomma , Nils Lukas

Large Language Models (LLMs) have achieved remarkable progress in natural language understanding, reasoning, and autonomous decision-making. However, these advancements have also come with significant privacy concerns. While significant…

密码学与安全 · 计算机科学 2026-01-27 Yuntao Du , Zitao Li , Ninghui Li , Bolin Ding

Fine-tuning large language models (LLMs) for specific tasks introduces privacy risks, as models may inadvertently memorise and leak sensitive training data. While Differential Privacy (DP) offers a solution to mitigate these risks, it…

机器学习 · 计算机科学 2024-11-26 Olivia Ma , Jonathan Passerat-Palmbach , Dmitrii Usynin

In-context learning (ICL) in Large Language Models (LLMs) has shown remarkable performance across various tasks without requiring fine-tuning. However, recent studies have highlighted the risk of private data leakage through the prompt in…

人工智能 · 计算机科学 2025-09-16 Seongho Joo , Hyukhun Koh , Kyomin Jung

Fine-tuning has emerged as a critical process in leveraging Large Language Models (LLMs) for specific downstream tasks, enabling these models to achieve state-of-the-art performance across various domains. However, the fine-tuning process…

人工智能 · 计算机科学 2025-04-08 Hao Du , Shang Liu , Lele Zheng , Yang Cao , Atsuyoshi Nakamura , Lei Chen

With the rapid adoption of Federated Learning (FL) as the training and tuning protocol for applications utilizing Large Language Models (LLMs), recent research highlights the need for significant modifications to FL to accommodate the…

密码学与安全 · 计算机科学 2024-03-11 Minh N. Vu , Truc Nguyen , Tre' R. Jeter , My T. Thai

Modern Integrated Development Environments (IDEs) increasingly leverage Large Language Models (LLMs) to provide advanced features like code autocomplete. While powerful, training these models on user-written code introduces significant…

密码学与安全 · 计算机科学 2026-02-02 Evgeny Grigorenko , David Stanojević , David Ilić , Egor Bogomolov , Kostadin Cvejoski

The rapid advancement of large language models (LLMs) has revolutionized natural language processing, enabling applications in diverse domains such as healthcare, finance and education. However, the growing reliance on extensive data for…

密码学与安全 · 计算机科学 2024-12-10 Guoshenghui Zhao , Eric Song