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In distributed learning settings, models are iteratively updated with shared gradients computed from potentially sensitive user data. While previous work has studied various privacy risks of sharing gradients, our paper aims to provide a…

机器学习 · 计算机科学 2024-09-02 Zhuohang Li , Andrew Lowy , Jing Liu , Toshiaki Koike-Akino , Kieran Parsons , Bradley Malin , Ye Wang

Federated Learning allows collaborative training without data sharing in settings where participants do not trust the central server and one another. Privacy can be further improved by ensuring that communication between the participants…

密码学与安全 · 计算机科学 2023-10-11 Qiongkai Xu , Trevor Cohn , Olga Ohrimenko

Efficient red-teaming method to uncover vulnerabilities in Large Language Models (LLMs) is crucial. While recent attacks often use LLMs as optimizers, the discrete language space make gradient-based methods struggle. We introduce LARGO…

机器学习 · 计算机科学 2025-05-19 Ran Li , Hao Wang , Chengzhi Mao

Deep learning models have been shown to be vulnerable to adversarial attacks. In particular, gradient-based attacks have demonstrated high success rates recently. The gradient measures how each image pixel affects the model output, which…

计算机视觉与模式识别 · 计算机科学 2022-02-03 Hanbin Hong , Yuan Hong , Yu Kong

Federated learning enables isolated clients to train a shared model collaboratively by aggregating the locally-computed gradient updates. However, privacy information could be leaked from uploaded gradients and be exposed to malicious…

密码学与安全 · 计算机科学 2023-02-28 Dun Zeng , Shiyu Liu , Siqi Liang , Zonghang Li , Hui Wang , Irwin King , Zenglin Xu

Perturbation-based mechanisms, such as differential privacy, mitigate gradient leakage attacks by introducing noise into the gradients, thereby preventing attackers from reconstructing clients' private data from the leaked gradients.…

机器学习 · 计算机科学 2025-01-07 Xuan Liu , Siqi Cai , Qihua Zhou , Song Guo , Ruibin Li , Kaiwei Lin

Federated Learning is a privacy preserving decentralized machine learning paradigm designed to collaboratively train models across multiple clients by exchanging gradients to the server and keeping private data local. Nevertheless, recent…

密码学与安全 · 计算机科学 2025-01-07 Isaac Baglin , Xiatian Zhu , Simon Hadfield

Federated Learning (FL) enables collaborative model training while preserving data privacy by keeping raw data locally stored on client devices, preventing access from other clients or the central server. However, recent studies reveal that…

密码学与安全 · 计算机科学 2025-09-26 Ren-Yi Huang , Dumindu Samaraweera , Prashant Shekhar , J. Morris Chang

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…

机器学习 · 计算机科学 2023-06-13 Zihan Wang , Jason D. Lee , Qi Lei

Federated Learning has seen an increased deployment in real-world scenarios recently, as it enables the distributed training of machine learning models without explicit data sharing between individual clients. Yet, the introduction of the…

机器学习 · 计算机科学 2025-10-29 Alexander Bakarsky , Dimitar I. Dimitrov , Maximilian Baader , Martin Vechev

The main premise of federated learning is that machine learning model updates are computed locally, in particular to preserve user data privacy, as those never leave the perimeter of their device. This mechanism supposes the general model,…

机器学习 · 计算机科学 2023-08-09 Simon Queyrut , Yérom-David Bromberg , Valerio Schiavoni

Retrieval-augmented generation (RAG) is a powerful technique to facilitate language model with proprietary and private data, where data privacy is a pivotal concern. Whereas extensive research has demonstrated the privacy risks of large…

密码学与安全 · 计算机科学 2024-03-03 Shenglai Zeng , Jiankun Zhang , Pengfei He , Yue Xing , Yiding Liu , Han Xu , Jie Ren , Shuaiqiang Wang , Dawei Yin , Yi Chang , Jiliang Tang

Recent studies have revealed that \textit{Backdoor Attacks} can threaten the safety of natural language processing (NLP) models. Investigating the strategies of backdoor attacks will help to understand the model's vulnerability. Most…

机器学习 · 计算机科学 2023-10-26 Weimin Lyu , Songzhu Zheng , Lu Pang , Haibin Ling , Chao Chen

Recent success of deep neural networks (DNNs) hinges on the availability of large-scale dataset; however, training on such dataset often poses privacy risks for sensitive training information. In this paper, we aim to explore the power of…

机器学习 · 计算机科学 2022-03-29 Boxin Wang , Fan Wu , Yunhui Long , Luka Rimanic , Ce Zhang , Bo Li

As Large Language Models (LLMs) are widely used, understanding them systematically is key to improving their safety and realizing their full potential. Although many models are aligned using techniques such as reinforcement learning from…

机器学习 · 计算机科学 2025-05-16 Sajib Biswas , Mao Nishino , Samuel Jacob Chacko , Xiuwen Liu

Federated learning works by aggregating locally computed gradients from multiple clients, thus enabling collaborative training without sharing private client data. However, prior work has shown that the data can actually be recovered by the…

机器学习 · 计算机科学 2024-11-14 Ivo Petrov , Dimitar I. Dimitrov , Maximilian Baader , Mark Niklas Müller , Martin Vechev

Collaborative training of neural networks leverages distributed data by exchanging gradient information between different clients. Although training data entirely resides with the clients, recent work shows that training data can be…

机器学习 · 计算机科学 2021-10-22 Daniel Scheliga , Patrick Mäder , Marco Seeland

The vulnerability of deep neural networks to adversarial examples has drawn tremendous attention from the community. Three approaches, optimizing standard objective functions, exploiting attention maps, and smoothing decision surfaces, are…

机器学习 · 计算机科学 2022-05-27 Yi Huang , Adams Wai-Kin Kong

Unlike traditional central training, federated learning (FL) improves the performance of the global model by sharing and aggregating local models rather than local data to protect the users' privacy. Although this training approach appears…

机器学习 · 计算机科学 2022-01-27 Jiahui Geng , Yongli Mou , Feifei Li , Qing Li , Oya Beyan , Stefan Decker , Chunming Rong

Parameter-efficient fine-tuning (PEFT) has emerged as a practical solution for adapting large language models (LLMs) to custom datasets with significantly reduced computational cost. When carrying out PEFT under collaborative learning…

密码学与安全 · 计算机科学 2025-04-30 Jin Xie , Ruishi He , Songze Li , Xiaojun Jia , Shouling Ji