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Large language models (LLMs) have emerged as a powerful tool for synthetic data generation. A particularly important use case is producing synthetic replicas of private text, which requires carefully balancing privacy and utility. We…

密码学与安全 · 计算机科学 2026-04-14 Qian Ma , Sarah Rajtmajer

We consider a collaborative learning scenario in which multiple data-owners wish to jointly train a logistic regression model, while keeping their individual datasets private from the other parties. We propose COPML, a fully-decentralized…

机器学习 · 计算机科学 2020-11-05 Jinhyun So , Basak Guler , A. Salman Avestimehr

In-context learning (ICL) enables efficient few-shot learning in large language models (LLMs) without training, but suffers from the quadratic input complexity of transformers, limiting the maximum number of exemplars. While various…

计算与语言 · 计算机科学 2025-10-10 Shaoyi Zheng , Canyu Zhang , Tianyi Zhou , Shengjie Wang

Large Language Models (LLMs) operating in 0-shot or few-shot settings achieve competitive results in Text Classification tasks. In-Context Learning (ICL) typically achieves better accuracy than the 0-shot setting, but it pays in terms of…

计算与语言 · 计算机科学 2024-04-04 Parth Patwa , Simone Filice , Zhiyu Chen , Giuseppe Castellucci , Oleg Rokhlenko , Shervin Malmasi

We explore how private synthetic text can be generated by suitably prompting a large language model (LLM). This addresses a challenge for organizations like hospitals, which hold sensitive text data like patient medical records, and wish to…

计算与语言 · 计算机科学 2025-02-20 Supriya Nagesh , Justin Y. Chen , Nina Mishra , Tal Wagner

Privacy-Preserving machine learning (PPML) can help us train and deploy models that utilize private information. In particular, on-device machine learning allows us to avoid sharing raw data with a third-party server during inference.…

机器学习 · 计算机科学 2024-01-23 Xinchi Qiu , Ilias Leontiadis , Luca Melis , Alex Sablayrolles , Pierre Stock

The number and dynamic nature of web and mobile applications presents significant challenges for assessing their compliance with data protection laws. In this context, symbolic and statistical Natural Language Processing (NLP) techniques…

计算与语言 · 计算机科学 2025-12-22 David Rodriguez , Ian Yang , Jose M. Del Alamo , Norman Sadeh

In-Context Learning (ICL) is a technique by which language models make predictions based on examples provided in their input context. Previously, their context window size imposed a limit on the number of examples that can be shown, making…

计算与语言 · 计算机科学 2025-05-29 Jinheon Baek , Sun Jae Lee , Prakhar Gupta , Geunseob Oh , Siddharth Dalmia , Prateek Kolhar

An increasing number of companies have begun providing services that leverage cloud-based large language models (LLMs), such as ChatGPT. However, this development raises substantial privacy concerns, as users' prompts are transmitted to and…

密码学与安全 · 计算机科学 2025-02-24 Shilong Hou , Ruilin Shang , Zi Long , Xianghua Fu , Yin Chen

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) are increasingly adopted across domains such as education, healthcare, and finance. In healthcare, LLMs support tasks including disease diagnosis, abnormality classification, and clinical decision-making. Among…

Large language models (LLMs) have demonstrated exceptional capabilities in text understanding and generation, and they are increasingly being utilized across various domains to enhance productivity. However, due to the high costs of…

密码学与安全 · 计算机科学 2024-11-05 Yu Mao , Xueping Liao , Wei Liu , Anjia Yang

Fine-tuning Large Language Models (LLMs) on sensitive datasets carries a substantial risk of unintended memorization and leakage of Personally Identifiable Information (PII), which can violate privacy regulations and compromise individual…

Deep learning techniques based on neural networks have shown significant success in a wide range of AI tasks. Large-scale training datasets are one of the critical factors for their success. However, when the training datasets are…

密码学与安全 · 计算机科学 2019-12-23 Lei Yu , Ling Liu , Calton Pu , Mehmet Emre Gursoy , Stacey Truex

Generating tabular data under differential privacy (DP) protection ensures theoretical privacy guarantees but poses challenges for training machine learning models, primarily due to the need to capture complex structures under noisy…

机器学习 · 计算机科学 2025-04-30 Tejumade Afonja , Hui-Po Wang , Raouf Kerkouche , Mario Fritz

Large language models (LLMs) have become the norm in natural language processing (NLP), excelling in few-shot in-context learning (ICL) with their remarkable abilities. Nonetheless, the success of ICL largely hinges on the choice of…

计算与语言 · 计算机科学 2025-05-06 Xingxuan Li , Xuan-Phi Nguyen , Shafiq Joty , Lidong Bing

This research addresses privacy protection in Natural Language Processing (NLP) by introducing a novel algorithm based on differential privacy, aimed at safeguarding user data in common applications such as chatbots, sentiment analysis, and…

密码学与安全 · 计算机科学 2024-10-14 Shaobo Liu , Guiran Liu , Binrong Zhu , Yuanshuai Luo , Linxiao Wu , Rui Wang

Recent developments in deep learning have led to great success in various natural language processing (NLP) tasks. However, these applications may involve data that contain sensitive information. Therefore, how to achieve good performance…

计算与语言 · 计算机科学 2023-10-24 Lijie Hu , Ivan Habernal , Lei Shen , Di Wang

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

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