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Backdoor attacks pose a serious threat to deep learning models by allowing adversaries to implant hidden behaviors that remain dormant on clean inputs but are maliciously triggered at inference. Existing backdoor attack methods typically…

Cryptography and Security · Computer Science 2025-11-18 Lijie Hu , Junchi Liao , Weimin Lyu , Shaopeng Fu , Tianhao Huang , Shu Yang , Guimin Hu , Di Wang

Currently, sample-specific backdoor attacks (SSBAs) are the most advanced and malicious methods since they can easily circumvent most of the current backdoor defenses. In this paper, we reveal that SSBAs are not sufficiently stealthy due to…

Cryptography and Security · Computer Science 2025-03-17 Mingyan Zhu , Yiming Li , Junfeng Guo , Tao Wei , Shu-Tao Xia , Zhan Qin

With the development of diffusion-based customization methods like DreamBooth, individuals now have access to train the models that can generate their personalized images. Despite the convenience, malicious users have misused these…

Computer Vision and Pattern Recognition · Computer Science 2024-07-29 Yisu Liu , Jinyang An , Wanqian Zhang , Dayan Wu , Jingzi Gu , Zheng Lin , Weiping Wang

Deep learning-based lane detection (LD) plays a critical role in autonomous driving and advanced driver assistance systems. However, its vulnerability to backdoor attacks presents a significant security concern. Existing backdoor attack…

Cryptography and Security · Computer Science 2026-03-26 Yifan Liao , Yuxin Cao , Yedi Zhang , Wentao He , Yan Xiao , Xianglong Du , Zhiyong Huang , Jin Song Dong

State-of-the-art deep learning models for tabular data have recently achieved acceptable performance to be deployed in industrial settings. However, the robustness of these models remains scarcely explored. Contrary to computer vision,…

Machine Learning · Computer Science 2023-11-09 Thibault Simonetto , Salah Ghamizi , Antoine Desjardins , Maxime Cordy , Yves Le Traon

Diffusion models have achieved notable success in image generation, but they remain highly vulnerable to backdoor attacks, which compromise their integrity by producing specific undesirable outputs when presented with a pre-defined trigger.…

Cryptography and Security · Computer Science 2024-09-10 Yichuan Mo , Hui Huang , Mingjie Li , Ang Li , Yisen Wang

In video-based emotion recognition, audio and visual modalities are often expected to have a complementary relationship, which is widely explored using cross-attention. However, they may also exhibit weak complementary relationships,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 R. Gnana Praveen , Jahangir Alam

Text adversarial attack methods are typically designed for static scenarios with fixed numbers of output labels and a predefined label space, relying on extensive querying of the victim model (query-based attacks) or the surrogate model…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Wenqiang Wang , Siyuan Liang , Xiao Yan , Xiaochun Cao

Large-scale diffusion models have made significant advances in image generation, particularly through cross-attention mechanisms. While cross-attention has been well-studied in text-to-image tasks, their interpretability in image-to-image…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Junseo Park , Hyeryung Jang

As artificial intelligence becomes more prevalent in our lives, people are enjoying the convenience it brings, but they are also facing hidden threats, such as data poisoning and adversarial attacks. These threats can have disastrous…

Cryptography and Security · Computer Science 2025-02-21 Yong Li , Han Gao

Diffusion models (DMs) are advanced deep learning models that achieved state-of-the-art capability on a wide range of generative tasks. However, recent studies have shown their vulnerability regarding backdoor attacks, in which backdoored…

Artificial Intelligence · Computer Science 2024-09-24 Vu Tuan Truong , Long Bao Le

A backdoor attack in deep learning inserts a hidden backdoor in the model to trigger malicious behavior upon specific input patterns. Existing detection approaches assume a metric space (for either the original inputs or their latent…

Cryptography and Security · Computer Science 2023-12-06 Xiaoxing Mo , Yechao Zhang , Leo Yu Zhang , Wei Luo , Nan Sun , Shengshan Hu , Shang Gao , Yang Xiang

Street scene change detection continues to capture researchers' interests in the computer vision community. It aims to identify the changed regions of the paired street-view images captured at different times. The state-of-the-art network…

Computer Vision and Pattern Recognition · Computer Science 2021-05-31 Shuo Chen , Kailun Yang , Rainer Stiefelhagen

Various Vision Transformer (ViT) models have been widely used for image recognition tasks. However, existing visual explanation methods can not display the attention flow hidden inside the inner structure of ViT models, which explains how…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Yi Liao , Yongsheng Gao , Weichuan Zhang

Text-to-image diffusion models are increasingly developed through open-source reuse and repeated downstream fine-tuning, where reused checkpoints are difficult to verify and thus more susceptible to hidden backdoor behaviors. In such…

Cryptography and Security · Computer Science 2026-05-20 Kai Wang , Jiale Zhang , Chengcheng Zhu , Chuang Ma , Songze Li

The rise of text-to-image (T2I) models has increasingly raised concerns regarding the generation of risky content, such as sexual, violent, and copyright-protected images, highlighting the need for effective safeguards within the models…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Chenyu Zhang

Backdoor attacks are rapidly emerging threats to deep neural networks (DNNs). In the backdoor attack scenario, attackers usually implant the backdoor into the target model by manipulating the training dataset or training process. Then, the…

Cryptography and Security · Computer Science 2022-05-09 Nan Zhong , Zhenxing Qian , Xinpeng Zhang

Transformer-based models have achieved state-of-the-art performance in various computer vision tasks, including image and video analysis. However, Transformer's complex architecture and black-box nature pose challenges for explainability, a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Zerui Wang , Yan Liu

Recent researches show that deep learning model is susceptible to backdoor attacks. Many defenses against backdoor attacks have been proposed. However, existing defense works require high computational overhead or backdoor attack…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Mingfu Xue , Yinghao Wu , Zhiyu Wu , Yushu Zhang , Jian Wang , Weiqiang Liu

Deep neural networks (DNNs) are vulnerable to backdoor attacks, where adversaries embed a hidden backdoor trigger during the training process for malicious prediction manipulation. These attacks pose great threats to the applications of…

Cryptography and Security · Computer Science 2023-02-21 Junfeng Guo , Yiming Li , Xun Chen , Hanqing Guo , Lichao Sun , Cong Liu