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As machine learning systems grow in scale, so do their training data requirements, forcing practitioners to automate and outsource the curation of training data in order to achieve state-of-the-art performance. The absence of trustworthy…

Data-poisoning backdoor attacks are serious security threats to machine learning models, where an adversary can manipulate the training dataset to inject backdoors into models. In this paper, we focus on in-training backdoor defense, aiming…

密码学与安全 · 计算机科学 2024-10-16 Shaokui Wei , Hongyuan Zha , Baoyuan Wu

Diffusion models (DM) have become state-of-the-art generative models because of their capability to generate high-quality images from noises without adversarial training. However, they are vulnerable to backdoor attacks as reported by…

Deep Neural Networks (DNN) are susceptible to backdoor attacks where malicious attackers manipulate the model's predictions via data poisoning. It is hence imperative to develop a strategy for training a clean model using a potentially…

密码学与安全 · 计算机科学 2023-12-21 Yiming Chen , Haiwei Wu , Jiantao Zhou

Semi-supervised machine learning models learn from a (small) set of labeled training examples, and a (large) set of unlabeled training examples. State-of-the-art models can reach within a few percentage points of fully-supervised training,…

机器学习 · 计算机科学 2021-08-11 Nicholas Carlini

Backdoor and data-poisoning attacks can flip predictions with tiny training corruptions, yet a sharp theory linking poisoning strength, overparameterization, and regularization is lacking. We analyze ridge least squares with an unpenalized…

机器学习 · 统计学 2026-01-06 Donald Flynn , Diego Granziol

Deep neural network (DNN) classifiers are vulnerable to backdoor attacks. An adversary poisons some of the training data in such attacks by installing a trigger. The goal is to make the trained DNN output the attacker's desired class…

机器学习 · 计算机科学 2022-10-14 Hadi M. Dolatabadi , Sarah Erfani , Christopher Leckie

Adversarial training is a common strategy for enhancing model robustness against adversarial attacks. However, it is typically tailored to the specific attack types it is trained on, limiting its ability to generalize to unseen threat…

计算机视觉与模式识别 · 计算机科学 2025-04-16 Fatemeh Amerehi , Patrick Healy

There is growing concern over the safety of powerful diffusion models (DMs), as they are often misused to produce inappropriate, not-safe-for-work (NSFW) content or generate copyrighted material or data of individuals who wish to be…

人工智能 · 计算机科学 2026-02-24 Mingyu Kim , Dongjun Kim , Amman Yusuf , Stefano Ermon , Mijung Park

Poisoning backdoor attacks involve an adversary manipulating the training data to induce certain behaviors in the victim model by inserting a trigger in the signal at inference time. We adapted clean label backdoor (CLBD)-data poisoning…

密码学与安全 · 计算机科学 2024-09-16 Henry Li Xinyuan , Sonal Joshi , Thomas Thebaud , Jesus Villalba , Najim Dehak , Sanjeev Khudanpur

Diffusion models build a new milestone for image generation yet raising public concerns, for they can be fine-tuned on unauthorized images for customization. Protection based on adversarial attacks rises to encounter this unauthorized…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Boyang Zheng , Chumeng Liang , Xiaoyu Wu

With the rise in popularity of machine and deep learning models, there is an increased focus on their vulnerability to malicious inputs. These adversarial examples drift model predictions away from the original intent of the network and are…

计算机视觉与模式识别 · 计算机科学 2020-03-11 Richard Tran , David Patrick , Michael Geyer , Amanda Fernandez

Pre-trained Language Models (PLMs) may be poisonous with backdoors or bias injected by the suspicious attacker during the fine-tuning process. A core challenge of purifying potentially poisonous PLMs is precisely finding poisonous…

计算与语言 · 计算机科学 2023-05-09 Zhiyuan Zhang , Deli Chen , Hao Zhou , Fandong Meng , Jie Zhou , Xu Sun

Deep neural networks are proven to be vulnerable to data poisoning attacks. Recently, a specific type of data poisoning attack known as availability attacks has led to the failure of data utilization for model learning by adding…

密码学与安全 · 计算机科学 2024-08-16 Yi Yu , Qichen Zheng , Siyuan Yang , Wenhan Yang , Jun Liu , Shijian Lu , Yap-Peng Tan , Kwok-Yan Lam , Alex Kot

Neural networks are susceptible to data inference attacks such as the membership inference attack, the adversarial model inversion attack and the attribute inference attack, where the attacker could infer useful information such as the…

机器学习 · 计算机科学 2022-12-02 Ziqi Yang , Lijin Wang , Da Yang , Jie Wan , Ziming Zhao , Ee-Chien Chang , Fan Zhang , Kui Ren

Data poisoning causes misclassification of test time target examples by injecting maliciously crafted samples in the training data. Existing defenses are often effective only against a specific type of targeted attack, significantly degrade…

机器学习 · 计算机科学 2022-10-19 Yu Yang , Tian Yu Liu , Baharan Mirzasoleiman

Data poisoning is a training-time attack that undermines the trustworthiness of learned models. In a targeted data poisoning attack, an adversary manipulates the training dataset to alter the classification of a targeted test point. Given…

机器学习 · 计算机科学 2025-11-18 Nakshatra Gupta , Sumanth Prabhu , Supratik Chakraborty , R Venkatesh

Large organizations such as social media companies continually release data, for example user images. At the same time, these organizations leverage their massive corpora of released data to train proprietary models that give them an edge…

密码学与安全 · 计算机科学 2021-03-08 Liam Fowl , Ping-yeh Chiang , Micah Goldblum , Jonas Geiping , Arpit Bansal , Wojtek Czaja , Tom Goldstein

Adversarial purification refers to a class of defense methods that remove adversarial perturbations using a generative model. These methods do not make assumptions on the form of attack and the classification model, and thus can defend…

机器学习 · 计算机科学 2022-05-17 Weili Nie , Brandon Guo , Yujia Huang , Chaowei Xiao , Arash Vahdat , Anima Anandkumar

To gather a significant quantity of annotated training data for high-performance image classification models, numerous companies opt to enlist third-party providers to label their unlabeled data. This practice is widely regarded as secure,…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Dazhong Rong , Guoyao Yu , Shuheng Shen , Xinyi Fu , Peng Qian , Jianhai Chen , Qinming He , Xing Fu , Weiqiang Wang