English
Related papers

Related papers: Token-Level Privacy in Large Language Models

200 papers

We address the problem of how to "obfuscate" texts by removing stylistic clues which can identify authorship, whilst preserving (as much as possible) the content of the text. In this paper we combine ideas from "generalised differential…

Cryptography and Security · Computer Science 2019-02-06 Natasha Fernandes , Mark Dras , Annabelle McIver

Differential Privacy (DP) is a widely adopted technique, valued for its effectiveness in protecting the privacy of task-specific datasets, making it a critical tool for large language models. However, its effectiveness in Multimodal Large…

Cryptography and Security · Computer Science 2025-06-10 Qianshan Wei , Jiaqi Li , Zihan You , Yi Zhan , Kecen Li , Jialin Wu , Xinfeng Li Hengjun Liu , Yi Yu , Bin Cao , Yiwen Xu , Yang Liu , Guilin Qi

The introduction and advancements in Local Differential Privacy (LDP) variants have become a cornerstone in addressing the privacy concerns associated with the vast data produced by smart devices, which forms the foundation for data-driven…

Cryptography and Security · Computer Science 2023-09-13 Likun Qin , Nan Wang , Tianshuo Qiu

Ensuring the privacy of sensitive data used to train modern machine learning models is of paramount importance in many areas of practice. One recent popular approach to study these concerns is using the differential privacy via a…

Cryptography and Security · Computer Science 2020-07-29 Lichao Sun , Ji Wang , Philip S. Yu , Lifang He

In-context learning (ICL) enables Large Language Models (LLMs) to adapt to new tasks with only a small set of examples at inference time, thereby avoiding task-specific fine-tuning. However, in-context examples may contain privacy-sensitive…

Machine Learning · Computer Science 2026-02-06 Rob Romijnders , Mohammad Mahdi Derakhshani , Jonathan Petit , Max Welling , Christos Louizos , Yuki M. Asano

This work examines a novel question: how much randomness is needed to achieve local differential privacy (LDP)? A motivating scenario is providing {\em multiple levels of privacy} to multiple analysts, either for distribution or for…

Cryptography and Security · Computer Science 2020-05-26 Antonious M. Girgis , Deepesh Data , Kamalika Chaudhuri , Christina Fragouli , Suhas Diggavi

Differential Privacy (DP) has emerged as a robust framework for privacy-preserving data releases and has been successfully applied in high-profile cases, such as the 2020 US Census. However, in organizational settings, the use of DP remains…

Cryptography and Security · Computer Science 2025-05-13 Nicolas Küchler , Alexander Viand , Hidde Lycklama , Anwar Hithnawi

Natural language processing (NLP) models may leak private information in different ways, including membership inference, reconstruction or attribute inference attacks. Sensitive information may not be explicit in the text, but hidden in…

Computation and Language · Computer Science 2024-07-01 Pedro Faustini , Shakila Mahjabin Tonni , Annabelle McIver , Qiongkai Xu , Mark Dras

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…

Cryptography and Security · Computer Science 2025-02-24 Shilong Hou , Ruilin Shang , Zi Long , Xianghua Fu , Yin Chen

The integration of Large Language Models (LLMs) into financial technology (FinTech) has revolutionized the analysis and processing of complex financial data, driving advancements in real-time decision-making and analytics. With the growing…

Cryptography and Security · Computer Science 2025-09-12 Sichen Zhu , Hoyeung Leung , Xiaoyi Wang , Jia Wei , Honghui Xu

Using language models as a remote service entails sending private information to an untrusted provider. In addition, potential eavesdroppers can intercept the messages, thereby exposing the information. In this work, we explore the…

Computation and Language · Computer Science 2024-07-04 Re'em Harel , Yair Elboher , Yuval Pinter

Deploying deep neural networks (DNNs) on edge devices exposes valuable intellectual property to model-stealing attacks. While TEE-shielded DNN partitioning (TSDP) mitigates this by isolating sensitive computations, existing paradigms fail…

Cryptography and Security · Computer Science 2026-03-09 Donghwa Kang , Hojun Choe , Doohyun Kim , Hyeongboo Baek , Brent ByungHoon Kang

Large language models (LLMs) are increasingly integrated into daily life through conversational interfaces, processing user data via natural language inputs and exhibiting advanced reasoning capabilities, which raises new concerns about…

Human-Computer Interaction · Computer Science 2026-02-12 Zhuoyang Li , Yanlai Wu , Yao Li , Xinning Gui , Yuhan Luo

Differential privacy provides strong privacy guarantees for machine learning applications. Much recent work has been focused on developing differentially private models, however there has been a gap in other stages of the machine learning…

Machine Learning · Computer Science 2021-09-07 Ashly Lau , Jonathan Passerat-Palmbach

As privacy issues are receiving increasing attention within the Natural Language Processing (NLP) community, numerous methods have been proposed to sanitize texts subject to differential privacy. However, the state-of-the-art text…

Cryptography and Security · Computer Science 2023-09-04 Huimin Chen , Fengran Mo , Yanhao Wang , Cen Chen , Jian-Yun Nie , Chengyu Wang , Jamie Cui

To provide privacy-aware software systems, it is crucial to consider privacy from the very beginning of the development. However, developers do not have the expertise and the knowledge required to embed the legal and social requirements for…

Software Engineering · Computer Science 2022-02-03 Francesco Casillo , Vincenzo Deufemia , Carmine Gravino

Deep learning models for NLP tasks are prone to variants of privacy attacks. To prevent privacy leakage, researchers have investigated word-level perturbations, relying on the formal guarantees of differential privacy (DP) in the embedding…

Computation and Language · Computer Science 2024-10-11 Tianhao Huang , Tao Yang , Ivan Habernal , Lijie Hu , Di Wang

Large pretrained language models (LLMs) have shown surprising In-Context Learning (ICL) ability. An important application in deploying large language models is to augment LLMs with a private database for some specific task. The main problem…

Cryptography and Security · Computer Science 2024-05-09 Chunyan Zheng , Keke Sun , Wenhao Zhao , Haibo Zhou , Lixin Jiang , Shaoyang Song , Chunlai Zhou

In this paper, we focus on preserving differential privacy (DP) in continual learning (CL), in which we train ML models to learn a sequence of new tasks while memorizing previous tasks. We first introduce a notion of continual adjacent…

Machine Learning · Computer Science 2021-10-12 Pradnya Desai , Phung Lai , NhatHai Phan , My T. Thai

Semantic communication has emerged as a promising paradigm for next-generation wireless systems, improving the communication efficiency by transmitting high-level semantic features. However, reliance on unimodal representations can degrade…

Signal Processing · Electrical Eng. & Systems 2025-09-11 Haoran Chang , Mingzhe Chen , Huaxia Wang , Qianqian Zhang