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Synthetic data generation is gaining traction as a privacy enhancing technology (PET). When properly generated, synthetic data preserve the analytic utility of real data while avoiding the retention of information that would allow the…

Data synthesis has been advocated as an important approach for utilizing data while protecting data privacy. In recent years, a plethora of tabular data synthesis algorithms (i.e., synthesizers) have been proposed. Some synthesizers satisfy…

密码学与安全 · 计算机科学 2025-09-09 Yuntao Du , Ninghui Li

Protecting sensitive health data while enabling collaborative analysis is a central challenge in healthcare. Traditional machine learning (ML) requires institutions to pool anonymized patient records, centralizing analytical development and…

机器学习 · 计算机科学 2026-05-05 Gaurang Sharma , Juha Pajula , Aada Illikainen , Markus Rautell , Noora Lipsonen , Petri Alhainen , Mika Hilvo

Federated Learning (FL) enables collaborative training while keeping sensitive data on clients' devices, but local model updates can still leak private information. Hybrid Homomorphic Encryption (HHE) has recently been applied to FL to…

密码学与安全 · 计算机科学 2026-03-30 Ivan Costa , Pedro Correia , Ivone Amorim , Eva Maia , Isabel Praça

The proliferation of large AI models trained on uncurated, often sensitive web-scraped data has raised significant privacy concerns. One of the concerns is that adversaries can extract information about the training data using privacy…

机器学习 · 计算机科学 2024-07-24 Dominik Hintersdorf , Lukas Struppek , Daniel Neider , Kristian Kersting

Large language models (LLMs) offer personalized responses based on user interactions, but this use case raises serious privacy concerns. Homomorphic encryption (HE) is a cryptographic protocol supporting arithmetic computations in encrypted…

密码学与安全 · 计算机科学 2025-02-24 Donghwan Rho , Taeseong Kim , Minje Park , Jung Woo Kim , Hyunsik Chae , Ernest K. Ryu , Jung Hee Cheon

Although data-driven methods usually have noticeable performance on disease diagnosis and treatment, they are suspected of leakage of privacy due to collecting data for model training. Recently, federated learning provides a secure and…

人工智能 · 计算机科学 2023-06-27 Yawei Zhao , Qinghe Liu , Xinwang Liu , Kunlun He

The federated learning (FL) technique was developed to mitigate data privacy issues in the traditional machine learning paradigm. While FL ensures that a user's data always remain with the user, the gradients are shared with the centralized…

Query-based systems (QBSs) are one of the key approaches for sharing data. QBSs allow analysts to request aggregate information from a private protected dataset. Attacks are a crucial part of ensuring QBSs are truly privacy-preserving. The…

密码学与安全 · 计算机科学 2024-09-04 Bozhidar Stevanoski , Ana-Maria Cretu , Yves-Alexandre de Montjoye

As the application of deep learning continues to grow, so does the amount of data used to make predictions. While traditionally, big-data deep learning was constrained by computing performance and off-chip memory bandwidth, a new constraint…

密码学与安全 · 计算机科学 2020-10-12 Brandon Reagen , Wooseok Choi , Yeongil Ko , Vincent Lee , Gu-Yeon Wei , Hsien-Hsin S. Lee , David Brooks

Federated Learning (FL) is susceptible to privacy attacks, such as data reconstruction attacks, in which a semi-honest server or a malicious client infers information about other clients' datasets from their model updates or gradients. To…

密码学与安全 · 计算机科学 2025-05-22 Abdullah Al Omar , Xin Yang , Euijin Choo , Omid Ardakanian

Today's densely instrumented world offers tremendous opportunities for continuous acquisition and analysis of multimodal sensor data providing temporal characterization of an individual's behaviors. Is it possible to efficiently couple such…

机器学习 · 计算机科学 2018-09-03 Homa Hosseinmardi , Amir Ghasemian , Shrikanth Narayanan , Kristina Lerman , Emilio Ferrara

With the advent of machine learning in applications of critical infrastructure such as healthcare and energy, privacy is a growing concern in the minds of stakeholders. It is pivotal to ensure that neither the model nor the data can be used…

机器学习 · 计算机科学 2021-12-01 Dominique Mercier , Adriano Lucieri , Mohsin Munir , Andreas Dengel , Sheraz Ahmed

The use of Neural Networks (NNs) for sensitive data processing is becoming increasingly popular, raising concerns about data privacy and security. Homomorphic Encryption (HE) has the potential to be used as a solution to preserve data…

密码学与安全 · 计算机科学 2023-05-04 Ivone Amorim , Eva Maia , Pedro Barbosa , Isabel Praça

With the introduction of data protection regulations, the need for innovative privacy-preserving approaches to process and analyse sensitive data has become apparent. One approach is the Personal Health Train (PHT) that brings analysis code…

Unstructured textual data is at the heart of healthcare systems. For obvious privacy reasons, these documents are not accessible to researchers as long as they contain personally identifiable information. One way to share this data while…

密码学与安全 · 计算机科学 2022-11-03 Yakini Tchouka , Jean-François Couchot , David Laiymani

Homomorphic encryption (HE) has found extensive utilization in federated learning (FL) systems, capitalizing on its dual advantages: (i) ensuring the confidentiality of shared models contributed by participating entities, and (ii) enabling…

密码学与安全 · 计算机科学 2023-08-10 Dongfang Zhao

Classical privacy-preserving computation techniques safeguard sensitive data in cloud computing, but often suffer from low computational efficiency. In this paper, we show that employing a single quantum server can significantly enhance…

量子物理 · 物理学 2024-10-30 Guangsheng Ma , Hongbo Li

Data fabric is an automated and AI-driven data fusion approach to accomplish data management unification without moving data to a centralized location for solving complex data problems. In a Federated learning architecture, the global model…

In differential privacy (DP), a challenging problem is to generate synthetic datasets that efficiently capture the useful information in the private data. The synthetic dataset enables any task to be done without privacy concern and…

密码学与安全 · 计算机科学 2021-01-01 Zhikun Zhang , Tianhao Wang , Ninghui Li , Jean Honorio , Michael Backes , Shibo He , Jiming Chen , Yang Zhang