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Quantum computing has been widely applied in various fields, such as quantum physics simulations, quantum machine learning, and big data analysis. However, in the domains of data-driven paradigm, how to ensure the privacy of the database is…

Quantum Physics · Physics 2024-04-10 Yuqing Li , Yusheng Zhao , Xinyue Zhang , Hui Zhong , Miao Pan , Chi Zhang

The widespread use of deep learning technology across various industries has made deep neural network models highly valuable and, as a result, attractive targets for potential attackers. Model extraction attacks, particularly query-based…

Cryptography and Security · Computer Science 2023-12-25 Zeyu Li , Chenghui Shi , Yuwen Pu , Xuhong Zhang , Yu Li , Jinbao Li , Shouling Ji

Data-driven advancements significantly contribute to societal progress, yet they also pose substantial risks to privacy. In this landscape, differential privacy (DP) has become a cornerstone in privacy preservation efforts. However, the…

Cryptography and Security · Computer Science 2025-02-11 Sara Saeidian , Tobias J. Oechtering , Mikael Skoglund

This paper addresses the challenge of balancing learner data privacy with the use of data in learning analytics (LA) by proposing a novel framework by applying Differential Privacy (DP). The need for more robust privacy protection keeps…

Cryptography and Security · Computer Science 2025-01-06 Qinyi Liu , Ronas Shakya , Mohammad Khalil , Jelena Jovanovic

Complex event processing (CEP) is a powerful and increasingly more important tool to analyse data streams for Internet of Things (IoT) applications. These data streams often contain private information that requires proper protection.…

Databases · Computer Science 2023-05-12 He Gu , Thomas Plagemann , Maik Benndorf , Vera Goebel , Boris Koldehofe

Model extraction attacks pose significant security threats to deployed language models, potentially compromising intellectual property and user privacy. This survey provides a comprehensive taxonomy of LLM-specific extraction attacks and…

Cryptography and Security · Computer Science 2025-07-09 Kaixiang Zhao , Lincan Li , Kaize Ding , Neil Zhenqiang Gong , Yue Zhao , Yushun Dong

Personalized privacy becomes critical in deep learning for Trustworthy AI. While Differentially Private Stochastic Gradient Descent (DP-SGD) is widely used in deep learning methods supporting privacy, it provides the same level of privacy…

Machine Learning · Computer Science 2023-05-25 Geon Heo , Junseok Seo , Steven Euijong Whang

Model inversion (MI) attacks are aimed at reconstructing training data from model parameters. Such attacks have triggered increasing concerns about privacy, especially given a growing number of online model repositories. However, existing…

Machine Learning · Computer Science 2021-08-20 Si Chen , Mostafa Kahla , Ruoxi Jia , Guo-Jun Qi

Existing quantum computers can only operate with hundreds of qubits in the Noisy Intermediate-Scale Quantum (NISQ) state, while quantum distributed computing (QDC) is regarded as a reliable way to address this limitation, allowing quantum…

Quantum Physics · Physics 2025-01-07 Hui Zhong , Keyi Ju , Jiachen Shen , Xinyue Zhang , Xiaoqi Qin , Tomoaki Ohtsuki , Miao Pan , Zhu Han

Model Inversion (MI) attacks aim at leveraging the output information of target models to reconstruct privacy-sensitive training data, raising critical concerns regarding the privacy vulnerabilities of Deep Neural Networks (DNNs).…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Yixiang Qiu , Hongyao Yu , Hao Fang , Tianqu Zhuang , Wenbo Yu , Bin Chen , Xuan Wang , Shu-Tao Xia , Ke Xu

Decentralized learning (DL) offers a novel paradigm in machine learning by distributing training across clients without central aggregation, enhancing scalability and efficiency. However, DL's peer-to-peer model raises challenges in…

Cryptography and Security · Computer Science 2024-04-30 Ali Reza Ghavamipour , Benjamin Zi Hao Zhao , Fatih Turkmen

Differential privacy (DP) is a neat privacy definition that can co-exist with certain well-defined data uses in the context of interactive queries. However, DP is neither a silver bullet for all privacy problems nor a replacement for all…

Cryptography and Security · Computer Science 2020-11-05 Josep Domingo-Ferrer , David Sánchez , Alberto Blanco-Justicia

Label differential privacy (label-DP) is a popular framework for training private ML models on datasets with public features and sensitive private labels. Despite its rigorous privacy guarantee, it has been observed that in practice…

Machine Learning · Computer Science 2023-06-06 Ruihan Wu , Jin Peng Zhou , Kilian Q. Weinberger , Chuan Guo

This paper investigates a class of attacks targeting the confidentiality aspect of security in Deep Reinforcement Learning (DRL) policies. Recent research have established the vulnerability of supervised machine learning models (e.g.,…

Machine Learning · Computer Science 2019-06-05 Vahid Behzadan , William Hsu

Machine Learning as a Service (MLaaS) enables users to leverage powerful machine learning models through cloud-based APIs, offering scalability and ease of deployment. However, these services are vulnerable to model extraction attacks,…

Cryptography and Security · Computer Science 2025-05-27 Amit Chakraborty , Sayyed Farid Ahamed , Sandip Roy , Soumya Banerjee , Kevin Choi , Abdul Rahman , Alison Hu , Edward Bowen , Sachin Shetty

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

Passive monitoring is a network measurement technique which analyzes the traffic carried by an operational network. It has several applications for traffic engineering, Quality of Experience monitoring and cyber security. However, it…

Networking and Internet Architecture · Computer Science 2025-11-04 Martino Trevisan

While Federated Learning (FL) mitigates direct data exposure, the resulting trained models remain susceptible to membership inference attacks (MIAs). This paper presents an empirical evaluation of Differential Privacy (DP) as a defense…

Cryptography and Security · Computer Science 2026-04-16 Gustavo de Carvalho Bertoli

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

Differential privacy (DP) is a formal notion that restricts the privacy leakage of an algorithm when running on sensitive data, in which privacy-utility trade-off is one of the central problems in private data analysis. In this work, we…

Machine Learning · Computer Science 2025-03-18 Bo Li , Wei Wang , Peng Ye