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Multivariate long-term time series forecasting (MLTSF) models are increasingly deployed in critical domains such as climate, finance, and transportation. Despite their growing importance, the security of MLTSF models against backdoor…

密码学与安全 · 计算机科学 2025-11-19 Kunlan Xiang , Haomiao Yang , Meng Hao , Wenbo Jiang , Haoxin Wang , Shiyue Huang , Shaofeng Li , Yijing Liu , Ji Guo , Dusit Niyato

Super-resolution (SR) has traditionally been based on pairs of high-resolution images (HR) and their low-resolution (LR) counterparts obtained artificially with bicubic downsampling. However, in real-world SR, there is a large variety of…

图像与视频处理 · 电气工程与系统科学 2020-11-06 Mohammad Saeed Rad , Thomas Yu , Claudiu Musat , Hazim Kemal Ekenel , Behzad Bozorgtabar , Jean-Philippe Thiran

Self-Supervised Learning (SSL) is an effective paradigm for learning representations from unlabeled data, such as text, images, and videos. However, researchers have recently found that SSL is vulnerable to backdoor attacks. The attacker…

计算机视觉与模式识别 · 计算机科学 2024-11-04 Shengsheng Qian , Dizhan Xue , Yifei Wang , Shengjie Zhang , Huaiwen Zhang , Changsheng Xu

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

Backdoor attacks have been shown to impose severe threats to real security-critical scenarios. Although previous works can achieve high attack success rates, they either require access to victim models which may significantly reduce their…

密码学与安全 · 计算机科学 2024-03-21 Jingke Zhao , Zan Wang , Yongwei Wang , Lanjun Wang

Fine-tuning pre-trained models for downstream tasks has led to a proliferation of open-sourced task-specific models. Recently, Model Merging (MM) has emerged as an effective approach to facilitate knowledge transfer among these…

密码学与安全 · 计算机科学 2024-09-04 Jinghuai Zhang , Jianfeng Chi , Zheng Li , Kunlin Cai , Yang Zhang , Yuan Tian

Backdoors and adversarial examples are the two primary threats currently faced by deep neural networks (DNNs). Both attacks attempt to hijack the model behaviors with unintended outputs by introducing (small) perturbations to the inputs.…

密码学与安全 · 计算机科学 2024-01-22 Yunjie Ge , Qian Wang , Huayang Huang , Qi Li , Cong Wang , Chao Shen , Lingchen Zhao , Peipei Jiang , Zheng Fang , Shenyi Zhang

It has been shown that natural language processing (NLP) models are vulnerable to a kind of security threat called the Backdoor Attack, which utilizes a `backdoor trigger' paradigm to mislead the models. The most threatening backdoor attack…

计算与语言 · 计算机科学 2022-02-17 Lingfeng Shen , Haiyun Jiang , Lemao Liu , Shuming Shi

Deep neural networks (DNNs) are recently shown to be vulnerable to backdoor attacks, where attackers embed hidden backdoors in the DNN model by injecting a few poisoned examples into the training dataset. While extensive efforts have been…

人工智能 · 计算机科学 2023-03-14 Zaixi Zhang , Qi Liu , Zhicai Wang , Zepu Lu , Qingyong Hu

Spiking Neural Networks (SNNs) are energy-efficient counterparts of Deep Neural Networks (DNNs) with high biological plausibility, as information is transmitted through temporal spiking patterns. The core element of an SNN is the spiking…

密码学与安全 · 计算机科学 2026-05-04 Abdullah Arafat Miah , Kevin Vu , Yu Bi

Deep Learning-based image synthesis techniques have been applied in healthcare research for generating medical images to support open research and augment medical datasets. Training generative adversarial neural networks (GANs) usually…

计算机视觉与模式识别 · 计算机科学 2023-07-18 Ruinan Jin , Xiaoxiao Li

Consistency models are a new class of models that generate images by directly mapping noise to data, allowing for one-step generation and significantly accelerating the sampling process. However, their robustness against adversarial attacks…

密码学与安全 · 计算机科学 2025-02-18 Chengen Wang , Murat Kantarcioglu

Machine Learning using neural networks has received prominent attention recently because of its success in solving a wide variety of computational tasks, in particular in the field of computer vision. However, several works have drawn…

机器学习 · 计算机科学 2024-08-01 C. A. Martínez-Mejía , J. Solano , J. Breier , D. Bucko , X. Hou

Deep neural networks (DNNs) are vulnerable to backdoor attacks, where the adversary manipulates a small portion of training data such that the victim model predicts normally on the benign samples but classifies the triggered samples as the…

计算机视觉与模式识别 · 计算机科学 2024-06-07 Yinghua Gao , Yiming Li , Xueluan Gong , Zhifeng Li , Shu-Tao Xia , Qian Wang

In a backdoor attack on a machine learning model, an adversary produces a model that performs well on normal inputs but outputs targeted misclassifications on inputs containing a small trigger pattern. Model compression is a widely-used…

密码学与安全 · 计算机科学 2021-05-03 Yulong Tian , Fnu Suya , Fengyuan Xu , David Evans

Recent years have witnessed the great success of deep learning algorithms in the geoscience and remote sensing realm. Nevertheless, the security and robustness of deep learning models deserve special attention when addressing…

计算机视觉与模式识别 · 计算机科学 2023-07-14 Nikolaus Dräger , Yonghao Xu , Pedram Ghamisi

With the help of conditioning mechanisms, the state-of-the-art diffusion models have achieved tremendous success in guided image generation, particularly in text-to-image synthesis. To gain a better understanding of the training process and…

密码学与安全 · 计算机科学 2023-10-24 Shengfang Zhai , Yinpeng Dong , Qingni Shen , Shi Pu , Yuejian Fang , Hang Su

Backdoor attack against image classification task has been widely studied and proven to be successful, while there exist little research on the backdoor attack against vision-language models. In this paper, we explore backdoor attack…

计算机视觉与模式识别 · 计算机科学 2024-01-08 Meiling Li , Nan Zhong , Xinpeng Zhang , Zhenxing Qian , Sheng Li

The commercialization of text-to-image diffusion models (DMs) brings forth potential copyright concerns. Despite numerous attempts to protect DMs from copyright issues, the vulnerabilities of these solutions are underexplored. In this…

密码学与安全 · 计算机科学 2024-05-28 Haonan Wang , Qianli Shen , Yao Tong , Yang Zhang , Kenji Kawaguchi

Self-supervised contrastive learning (CL) effectively learns transferable representations from unlabeled data containing images or image-text pairs but suffers vulnerability to data poisoning backdoor attacks (DPCLs). An adversary can…

计算机视觉与模式识别 · 计算机科学 2025-08-20 Tuo Chen , Jie Gui , Minjing Dong , Ju Jia , Lanting Fang , Jian Liu