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Institutions collect massive learning traces but they may not disclose it for privacy issues. Synthetic data generation opens new opportunities for research in education. In this paper we present a generative model for educational data that…

计算机与社会 · 计算机科学 2022-07-09 Jill-Jênn Vie , Tomas Rigaux , Sein Minn

Differentially private graph analysis is a powerful tool for deriving insights from diverse graph data while protecting individual information. Designing private analytic algorithms for different graph queries often requires starting from…

数据库 · 计算机科学 2024-12-10 Shang Liu , Hao Du , Yang Cao , Bo Yan , Jinfei Liu , Masatoshi Yoshikawa

Generating synthetic data for financial time series poses challenges, especially considering their non-stationary nature. Traditional statistical time series models normally assume weak stationarity. However, this assumption can constrain…

计算工程、金融与科学 · 计算机科学 2026-05-22 Marco Gregnanin , Johannes De Smedt , Giorgio Gnecco , Maurizio Parton

Retrieval-augmented generation (RAG) enhances the outputs of language models by integrating relevant information retrieved from external knowledge sources. However, when the retrieval process involves private data, RAG systems may face…

密码学与安全 · 计算机科学 2025-02-21 Shenglai Zeng , Jiankun Zhang , Pengfei He , Jie Ren , Tianqi Zheng , Hanqing Lu , Han Xu , Hui Liu , Yue Xing , Jiliang Tang

Due to the growing rise of cyber attacks in the Internet, flow-based data sets are crucial to increase the performance of the Machine Learning (ML) components that run in network-based intrusion detection systems (IDS). To overcome the…

密码学与安全 · 计算机科学 2022-02-09 Alberto Mozo , Ángel González-Prieto , Antonio Pastor , Sandra Gómez-Canaval , Edgar Talavera

Camouflaging data by generating fake information is a well-known obfuscation technique for protecting data privacy. In this paper, we focus on a very sensitive and increasingly exposed type of data: location data. There are two main…

密码学与安全 · 计算机科学 2015-05-29 Vincent Bindschaedler , Reza Shokri

Synthetic data from generative models emerges as the privacy-preserving data sharing solution. Such a synthetic data set shall resemble the original data without revealing identifiable private information. Till date, the prior focus on…

机器学习 · 计算机科学 2025-07-23 Chaoyi Zhu , Jiayi Tang , Juan F. Pérez , Marten van Dijk , Lydia Y. Chen

Recent advances in synthetic data generation (SDG) have been hailed as a solution to the difficult problem of sharing sensitive data while protecting privacy. SDG aims to learn statistical properties of real data in order to generate…

机器学习 · 计算机科学 2024-05-10 Meenatchi Sundaram Muthu Selva Annamalai , Andrea Gadotti , Luc Rocher

The availability of large-scale face datasets has been key in the progress of face recognition. However, due to licensing issues or copyright infringement, some datasets are not available anymore (e.g. MS-Celeb-1M). Recent advances in…

计算机视觉与模式识别 · 计算机科学 2021-10-04 Laurent Colbois , Tiago de Freitas Pereira , Sébastien Marcel

Recent advances in generating synthetic data that allow to add principled ways of protecting privacy -- such as Differential Privacy -- are a crucial step in sharing statistical information in a privacy preserving way. But while the focus…

机器学习 · 统计学 2021-10-04 Christian Arnold , Marcel Neunhoeffer

To make medical datasets accessible without sharing sensitive patient information, we introduce a novel end-to-end approach for generative de-identification of dynamic medical imaging data. Until now, generative methods have faced…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Hadrien Reynaud , Qingjie Meng , Mischa Dombrowski , Arijit Ghosh , Thomas Day , Alberto Gomez , Paul Leeson , Bernhard Kainz

In this paper, we propose a data privacy-preserving and communication efficient distributed GAN learning framework named Distributed Asynchronized Discriminator GAN (AsynDGAN). Our proposed framework aims to train a central generator learns…

图像与视频处理 · 电气工程与系统科学 2020-06-16 Qi Chang , Hui Qu , Yikai Zhang , Mert Sabuncu , Chao Chen , Tong Zhang , Dimitris Metaxas

As Deep Learning algorithms continue to evolve and become more sophisticated, they require massive datasets for model training and efficacy of models. Some of those data requirements can be met with the help of existing datasets within the…

Background: Synthetic data has been proposed as a solution for sharing anonymized versions of sensitive biomedical datasets. Ideally, synthetic data should preserve the structure and statistical properties of the original data, while…

机器学习 · 计算机科学 2024-10-24 Ileana Montoya Perez , Parisa Movahedi , Valtteri Nieminen , Antti Airola , Tapio Pahikkala

Mobility datasets are fundamental for evaluating algorithms pertaining to geographic information systems and facilitating experimental reproducibility. But privacy implications restrict sharing such datasets, as even aggregated…

机器学习 · 计算机科学 2018-12-03 Vaibhav Kulkarni , Natasa Tagasovska , Thibault Vatter , Benoit Garbinato

Synthetic data generation to improve classification performance (data augmentation) is a well-studied problem. Recently, generative adversarial networks (GAN) have shown superior image data augmentation performance, but their suitability in…

计算机视觉与模式识别 · 计算机科学 2020-11-19 Mehran Maghoumi , Eugene M. Taranta , Joseph J. LaViola

The generation of privacy-preserving synthetic datasets is a promising avenue for overcoming data scarcity in medical AI research. Post-hoc privacy filtering techniques, designed to remove samples containing personally identifiable…

机器学习 · 计算机科学 2025-10-03 Adil Koeken , Alexander Ziller , Moritz Knolle , Daniel Rueckert

Our ability to synthesize sensory data that preserves specific statistical properties of the real data has had tremendous implications on data privacy and big data analytics. The synthetic data can be used as a substitute for selective real…

机器学习 · 计算机科学 2017-02-01 Moustafa Alzantot , Supriyo Chakraborty , Mani B. Srivastava

In recent years, financial institutions and firms have increasingly adopted synthetic data to address data scarcity and to generate counterfactual market scenarios. However, reproducing all the statistical properties of financial time…

机器学习 · 计算机科学 2026-05-27 Giuseppe Masi , Andrea Coletta , Novella Bartolini

In this paper, we propose generating artificial data that retain statistical properties of real data as the means of providing privacy with respect to the original dataset. We use generative adversarial network to draw privacy-preserving…

机器学习 · 计算机科学 2019-04-30 Aleksei Triastcyn , Boi Faltings