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While there has been substantial research using adversarial attacks to analyze NLP models, each attack is implemented in its own code repository. It remains challenging to develop NLP attacks and utilize them to improve model performance.…

计算与语言 · 计算机科学 2020-10-06 John X. Morris , Eli Lifland , Jin Yong Yoo , Jake Grigsby , Di Jin , Yanjun Qi

AI-generated text (AIGT) detection evasion aims to reduce the detection probability of AIGT, helping to identify weaknesses in detectors and enhance their effectiveness and reliability in practical applications. Although existing evasion…

密码学与安全 · 计算机科学 2025-08-25 Yinghan Zhou , Juan Wen , Wanli Peng , Zhengxian Wu , Ziwei Zhang , Yiming Xue

Latent Dirichlet Allocation (LDA) is a popular topic modeling technique for hidden semantic discovery of text data and serves as a fundamental tool for text analysis in various applications. However, the LDA model as well as the training…

机器学习 · 计算机科学 2020-10-12 Fangyuan Zhao , Xuebin Ren , Shusen Yang , Qing Han , Peng Zhao , Xinyu Yang

Large Language Models (LLMs) have become a cornerstone in the field of Natural Language Processing (NLP), offering transformative capabilities in understanding and generating human-like text. However, with their rising prominence, the…

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

Online users generate tremendous amounts of textual information by participating in different activities, such as writing reviews and sharing tweets. This textual data provides opportunities for researchers and business partners to study…

密码学与安全 · 计算机科学 2019-07-09 Ghazaleh Beigi , Kai Shu , Ruocheng Guo , Suhang Wang , Huan Liu

By inducing privacy attacks on NLP models, attackers can obtain sensitive information such as training data and model parameters, etc. Although researchers have studied, in-depth, several kinds of attacks in NLP models, they are…

计算与语言 · 计算机科学 2024-10-02 Wei Huang , Yinggui Wang , Cen Chen

Large language models (LLMs), like ChatGPT, have greatly simplified text generation tasks. However, they have also raised concerns about privacy risks such as data leakage and unauthorized data collection. Existing solutions for…

密码学与安全 · 计算机科学 2026-03-19 Meng Tong , Kejiang Chen , Jie Zhang , Yuang Qi , Weiming Zhang , Nenghai Yu , Tianwei Zhang , Zhikun Zhang

The generative Artificial Intelligence (AI) tools based on Large Language Models (LLMs) use billions of parameters to extensively analyse large datasets and extract critical private information such as, context, specific details,…

Applications of Differential Privacy (DP) in NLP must distinguish between the syntactic level on which a proposed mechanism operates, often taking the form of $\textit{word-level}$ or $\textit{document-level}$ privatization. Recently,…

计算与语言 · 计算机科学 2024-07-02 Stephen Meisenbacher , Maulik Chevli , Florian Matthes

Recently, the membership inference attack poses a serious threat to the privacy of confidential training data of machine learning models. This paper proposes a novel adversarial example based privacy-preserving technique (AEPPT), which adds…

密码学与安全 · 计算机科学 2022-07-05 Mingfu Xue , Chengxiang Yuan , Can He , Zhiyu Wu , Yushu Zhang , Zhe Liu , Weiqiang Liu

Large Language Models (LLMs) have transformed natural language processing (NLP) by enabling robust text generation and understanding. However, their deployment in sensitive domains like healthcare, finance, and legal services raises…

人工智能 · 计算机科学 2024-12-09 Georgios Feretzakis , Vassilios S. Verykios

In the past few years, it has become increasingly evident that deep neural networks are not resilient enough to withstand adversarial perturbations in input data, leaving them vulnerable to attack. Various authors have proposed strong…

计算与语言 · 计算机科学 2023-04-19 Shreya Goyal , Sumanth Doddapaneni , Mitesh M. Khapra , Balaraman Ravindran

Local differential privacy (LDP) can be adopted to anonymize richer user data attributes that will be input to sophisticated machine learning (ML) tasks. However, today's LDP approaches are largely task-agnostic and often lead to severe…

密码学与安全 · 计算机科学 2022-08-09 Jiangnan Cheng , Ao Tang , Sandeep Chinchali

The growing use of social media has led to the development of several Machine Learning (ML) and Natural Language Processing(NLP) tools to process the unprecedented amount of social media content to make actionable decisions. However, these…

计算与语言 · 计算机科学 2021-10-28 Izzat Alsmadi , Kashif Ahmad , Mahmoud Nazzal , Firoj Alam , Ala Al-Fuqaha , Abdallah Khreishah , Abdulelah Algosaibi

The distributed nature of local differential privacy (LDP) invites data poisoning attacks and poses unforeseen threats to the underlying LDP-supported applications. In this paper, we propose a comprehensive mitigation framework for popular…

密码学与安全 · 计算机科学 2025-06-18 Xiaolin Li , Ninghui Li , Boyang Wang , Wenhai Sun

Adversarial attacks on machine learning algorithms have been a key deterrent to the adoption of AI in many real-world use cases. They significantly undermine the ability of high-performance neural networks by forcing misclassifications.…

机器学习 · 计算机科学 2024-04-04 Nandish Chattopadhyay , Atreya Goswami , Anupam Chattopadhyay

As machine learning (ML) technologies become more prevalent in privacy-sensitive areas like healthcare and finance, eventually incorporating sensitive information in building data-driven algorithms, it is vital to scrutinize whether these…

机器学习 · 计算机科学 2025-04-08 Ehsanul Kabir , Lucas Craig , Shagufta Mehnaz

Recent studies show that neural natural language processing (NLP) models are vulnerable to backdoor attacks. Injected with backdoors, models perform normally on benign examples but produce attacker-specified predictions when the backdoor is…

计算与语言 · 计算机科学 2021-06-14 Fanchao Qi , Yuan Yao , Sophia Xu , Zhiyuan Liu , Maosong Sun

Large Language Models (LLMs) represent a transformative leap in artificial intelligence, enabling the comprehension, generation, and nuanced interaction with human language on an unparalleled scale. However, LLMs are increasingly vulnerable…

密码学与安全 · 计算机科学 2025-02-06 Nan Wang , Kane Walter , Yansong Gao , Alsharif Abuadbba