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Recently, self-supervised learning (SSL) was shown to be vulnerable to patch-based data poisoning backdoor attacks. It was shown that an adversary can poison a small part of the unlabeled data so that when a victim trains an SSL model on…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Ajinkya Tejankar , Maziar Sanjabi , Qifan Wang , Sinong Wang , Hamed Firooz , Hamed Pirsiavash , Liang Tan

Relying only on unlabeled data, Self-supervised learning (SSL) can learn rich features in an economical and scalable way. As the drive-horse for building foundation models, SSL has received a lot of attention recently with wide…

机器学习 · 计算机科学 2024-04-24 Yifei Wang , Wenhan Ma , Stefanie Jegelka , Yisen Wang

Semi-supervised machine learning (SSL) is gaining popularity as it reduces the cost of training ML models. It does so by using very small amounts of (expensive, well-inspected) labeled data and large amounts of (cheap, non-inspected)…

密码学与安全 · 计算机科学 2022-11-02 Virat Shejwalkar , Lingjuan Lyu , Amir Houmansadr

Wild images on the web are vulnerable to backdoor (also called trojan) poisoning, causing machine learning models learned on these images to be injected with backdoors. Most previous attacks assumed that the wild images are labeled. In…

计算机与社会 · 计算机科学 2023-01-03 Le Feng , Zhenxing Qian , Sheng Li , Xinpeng Zhang

Large-scale unlabeled data has spurred recent progress in self-supervised learning methods that learn rich visual representations. State-of-the-art self-supervised methods for learning representations from images (e.g., MoCo, BYOL, MSF) use…

计算机视觉与模式识别 · 计算机科学 2022-06-10 Aniruddha Saha , Ajinkya Tejankar , Soroush Abbasi Koohpayegani , Hamed Pirsiavash

As a new paradigm in machine learning, self-supervised learning (SSL) is capable of learning high-quality representations of complex data without relying on labels. In addition to eliminating the need for labeled data, research has found…

密码学与安全 · 计算机科学 2023-08-15 Changjiang Li , Ren Pang , Zhaohan Xi , Tianyu Du , Shouling Ji , Yuan Yao , Ting Wang

Self-supervised learning (SSL) models are vulnerable to backdoor attacks. Existing backdoor attacks that are effective in SSL often involve noticeable triggers, like colored patches or visible noise, which are vulnerable to human…

计算机视觉与模式识别 · 计算机科学 2025-04-04 Hanrong Zhang , Zhenting Wang , Boheng Li , Fulin Lin , Tingxu Han , Mingyu Jin , Chenlu Zhan , Mengnan Du , Hongwei Wang , Shiqing Ma

Self-Supervised Learning (SSL) has become a prominent paradigm for pre-training encoders to learning general-purpose representations from unlabeled data and releasing them on third-party platforms for broad downstream deep learning tasks.…

机器学习 · 计算机科学 2026-02-02 TIngxu Han , Wei Song , Weisong Sun , Ziqi Ding , Yebo Feng , Chunrong Fang , Jun Li , Hanwei Qian , Zhenyu Chen , Yang Liu

Poisoning-based backdoor attacks pose significant threats to deep neural networks by embedding triggers in training data, causing models to misclassify triggered inputs as adversary-specified labels while maintaining performance on clean…

密码学与安全 · 计算机科学 2026-04-24 Yuchen Shi , Xin Guo , Huajie Chen , Tianqing Zhu , Bo Liu , Wanlei Zhou

Self-supervised learning (SSL) is a prevalent approach for encoding data representations. Using a pre-trained SSL image encoder and subsequently training a downstream classifier, impressive performance can be achieved on various tasks with…

密码学与安全 · 计算机科学 2024-07-18 Mengxin Zheng , Jiaqi Xue , Zihao Wang , Xun Chen , Qian Lou , Lei Jiang , Xiaofeng Wang

While machine learning (ML) models are being increasingly trusted to make decisions in different and varying areas, the safety of systems using such models has become an increasing concern. In particular, ML models are often trained on data…

Self-supervised learning (SSL) is pervasively exploited in training high-quality upstream encoders with a large amount of unlabeled data. However, it is found to be susceptible to backdoor attacks merely via polluting a small portion of…

机器学习 · 计算机科学 2025-03-21 Sizai Hou , Songze Li , Duanyi Yao

A backdoor or Trojan attack is an important type of data poisoning attack against deep neural network (DNN) classifiers, wherein the training dataset is poisoned with a small number of samples that each possess the backdoor pattern (usually…

机器学习 · 计算机科学 2023-03-15 H. Wang , S. Karami , O. Dia , H. Ritter , E. Emamjomeh-Zadeh , J. Chen , Z. Xiang , D. J. Miller , G. Kesidis

Deep neural networks are vulnerable to backdoor attacks, a type of adversarial attack that poisons the training data to manipulate the behavior of models trained on such data. Clean-label attacks are a more stealthy form of backdoor attacks…

Data-poisoning based backdoor attacks aim to insert backdoor into models by manipulating training datasets without controlling the training process of the target model. Existing attack methods mainly focus on designing triggers or fusion…

密码学与安全 · 计算机科学 2023-07-17 Zihao Zhu , Mingda Zhang , Shaokui Wei , Li Shen , Yanbo Fan , Baoyuan Wu

Backdoors and poisoning attacks are a major threat to the security of machine-learning and vision systems. Often, however, these attacks leave visible artifacts in the images that can be visually detected and weaken the efficacy of the…

密码学与安全 · 计算机科学 2020-03-20 Erwin Quiring , Konrad Rieck

Backdoor attacks are emerging threats to deep neural networks, which typically embed malicious behaviors into a victim model by injecting poisoned samples. Adversaries can activate the injected backdoor during inference by presenting the…

密码学与安全 · 计算机科学 2025-12-05 Bingyin Zhao , Yingjie Lao

Deep Neural Networks (DNNs) can handle increasingly complex tasks, albeit they require rapidly expanding training datasets. Collecting data from platforms with user-generated content, such as social networks, has significantly eased the…

密码学与安全 · 计算机科学 2024-09-04 Jonathan Knauer , Phillip Rieger , Hossein Fereidooni , Ahmad-Reza Sadeghi

Availability poisons exploit supervised learning (SL) algorithms by introducing class-related shortcut features in images such that models trained on poisoned data are useless for real-world datasets. Self-supervised learning (SSL), which…

计算机视觉与模式识别 · 计算机科学 2024-09-16 Jeremy Styborski , Mingzhi Lyu , Yi Huang , Adams Kong

Self-Supervised Learning (SSL) has shown great promise in learning representations from unlabeled data. The power of learning representations without the need for human annotations has made SSL a widely used technique in real-world…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Aryan Satpathy , Nilaksh Singh , Dhruva Rajwade , Somesh Kumar
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