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Being able to reconstruct training data from the parameters of a neural network is a major privacy concern. Previous works have shown that reconstructing training data, under certain circumstances, is possible. In this work, we analyse such…

Understanding to what extent neural networks memorize training data is an intriguing question with practical and theoretical implications. In this paper we show that in some cases a significant fraction of the training data can in fact be…

Machine Learning · Computer Science 2022-12-06 Niv Haim , Gal Vardi , Gilad Yehudai , Ohad Shamir , Michal Irani

Interpretability is often pointed out as a key requirement for trustworthy machine learning. However, learning and releasing models that are inherently interpretable leaks information regarding the underlying training data. As such…

Artificial Intelligence · Computer Science 2024-04-04 Julien Ferry , Ulrich Aïvodji , Sébastien Gambs , Marie-José Huguet , Mohamed Siala

Given access to a machine learning model, can an adversary reconstruct the model's training data? This work studies this question from the lens of a powerful informed adversary who knows all the training data points except one. By…

Cryptography and Security · Computer Science 2022-04-26 Borja Balle , Giovanni Cherubin , Jamie Hayes

We study what provable privacy attacks can be shown on trained, 2-layer ReLU neural networks. We explore two types of attacks; data reconstruction attacks, and membership inference attacks. We prove that theoretical results on the implicit…

Machine Learning · Computer Science 2025-02-11 Guy Smorodinsky , Gal Vardi , Itay Safran

Federated learning of deep learning models for supervised tasks, e.g. image classification and segmentation, has found many applications: for example in human-in-the-loop tasks such as film post-production where it enables sharing of domain…

Machine Learning · Statistics 2021-11-22 Cangxiong Chen , Neill D. F. Campbell

Reconstruction attacks and defenses are essential in understanding the data leakage problem in machine learning. However, prior work has centered around empirical observations of gradient inversion attacks, lacks theoretical grounding, and…

Cryptography and Security · Computer Science 2025-03-25 Sheng Liu , Zihan Wang , Yuxiao Chen , Qi Lei

Understanding when and how much a model gradient leaks information about the training sample is an important question in privacy. In this paper, we present a surprising result: even without training or memorizing the data, we can fully…

Machine Learning · Computer Science 2023-06-13 Zihan Wang , Jason D. Lee , Qi Lei

Federated learning has emerged as a promising paradigm for collaborative model training while preserving data privacy. However, recent studies have shown that it is vulnerable to various privacy attacks, such as data reconstruction attacks.…

Cryptography and Security · Computer Science 2024-07-25 Xiaojin Zhang , Wei Chen

Recent works have demonstrated that it is possible to reconstruct training images and their labels from gradients of an image-classification model when its architecture is known. Unfortunately, there is still an incomplete theoretical…

Machine Learning · Computer Science 2022-10-25 Cangxiong Chen , Neill D. F. Campbell

Models leak information about their training data. This enables attackers to infer sensitive information about their training sets, notably determine if a data sample was part of the model's training set. The existing works empirically show…

Machine Learning · Statistics 2021-02-18 Sasi Kumar Murakonda , Reza Shokri , George Theodorakopoulos

Neural networks trained on real-world data often exhibit biases while simultaneously being vulnerable to privacy attacks aimed at extracting sensitive information. Despite extensive research on each problem individually, their intersection…

Machine Learning · Computer Science 2025-10-07 Chenxiang Zhang , Jun Pang , Sjouke Mauw

Over-parameterized models have raised concerns about their potential to memorize training data, even when achieving strong generalization. The privacy implications of such memorization are generally unclear, particularly in scenarios where…

Machine Learning · Computer Science 2025-05-27 Daniel Barzilai , Yuval Margalit , Eitan Gronich , Gilad Yehudai , Meirav Galun , Ronen Basri

Reconstructing training data from trained neural networks is an active area of research with significant implications for privacy and explainability. Recent advances have demonstrated the feasibility of this process for several data types.…

Machine Learning · Computer Science 2024-11-26 Ran Elbaz , Gilad Yehudai , Meirav Galun , Haggai Maron

Deep Neural Networks (DNNs) have revolutionized various domains with their exceptional performance across numerous applications. However, Model Inversion (MI) attacks, which disclose private information about the training dataset by abusing…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Hao Fang , Yixiang Qiu , Hongyao Yu , Wenbo Yu , Jiawei Kong , Baoli Chong , Bin Chen , Xuan Wang , Shu-Tao Xia , Ke Xu

Machine learning poses severe privacy concerns as it has been shown that the learned models can reveal sensitive information about their training data. Many works have investigated the effect of widely adopted data augmentation and…

Machine Learning · Computer Science 2024-03-26 Xiao Li , Qiongxiu Li , Zhanhao Hu , Xiaolin Hu

Past work has shown that large language models are susceptible to privacy attacks, where adversaries generate sequences from a trained model and detect which sequences are memorized from the training set. In this work, we show that the…

Cryptography and Security · Computer Science 2022-12-21 Nikhil Kandpal , Eric Wallace , Colin Raffel

Reconstructing samples from the training set of trained neural networks is a major privacy concern. Haim et al. (2022) recently showed that it is possible to reconstruct training samples from neural network binary classifiers, based on…

Machine Learning · Computer Science 2023-05-08 Gon Buzaglo , Niv Haim , Gilad Yehudai , Gal Vardi , Michal Irani

Publicly releasing the specification of a model with its trained parameters means an adversary can attempt to reconstruct information about the training data via training data reconstruction attacks, a major vulnerability of modern machine…

Machine Learning · Statistics 2025-07-25 George Wynne

Recent studies have shown that distributed machine learning is vulnerable to gradient inversion attacks, where private training data can be reconstructed by analyzing the gradients of the models shared in training. Previous attacks…

Machine Learning · Computer Science 2024-10-07 Weijun Li , Qiongkai Xu , Mark Dras
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