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Pre-trained models (PTMs) are widely adopted across various downstream tasks in the machine learning supply chain. Adopting untrustworthy PTMs introduces significant security risks, where adversaries can poison the model supply chain by…

密码学与安全 · 计算机科学 2025-02-05 Hao Wang , Shangwei Guo , Jialing He , Hangcheng Liu , Tianwei Zhang , Tao Xiang

Vision-Language-Action (VLA) models have advanced robotic control by enabling end-to-end decision-making directly from multimodal inputs. However, their tightly coupled architectures expose novel security vulnerabilities. Unlike traditional…

密码学与安全 · 计算机科学 2025-05-23 Xueyang Zhou , Guiyao Tie , Guowen Zhang , Hechang Wang , Pan Zhou , Lichao Sun

Vision transformers have achieved impressive performance in various vision-related tasks, but their vulnerability to backdoor attacks is under-explored. A handful of existing works focus on dirty-label attacks with wrongly-labeled poisoned…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Xueluan Gong , Bowei Tian , Meng Xue , Shuike Li , Yanjiao Chen , Qian Wang

Recently, Deep Learning (DL) techniques have been used for User Equipment (UE) positioning. However, the key shortcomings of such models is that: i) they weigh the same attention to the entire input; ii) they are not well suited for the…

计算机视觉与模式识别 · 计算机科学 2025-11-12 Parshwa Shah , Dhaval K. Patel , Brijesh Soni , Miguel López-Benítez , Siddhartan Govindasamy

Multi-head self-attention is a distinctive feature extraction mechanism of vision transformers that computes pairwise relationships among all input patches, contributing significantly to their high performance. However, it is known to incur…

计算机视觉与模式识别 · 计算机科学 2025-07-28 Yuki Igaue , Hiroaki Aizawa

Vision Transformers are at the heart of the current surge of interest in foundation models for histopathology. They process images by breaking them into smaller patches following a regular grid, regardless of their content. Yet, not all…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Clément Grisi , Geert Litjens , Jeroen van der Laak

With the thriving of deep learning and the widespread practice of using pre-trained networks, backdoor attacks have become an increasing security threat drawing many research interests in recent years. A third-party model can be poisoned in…

密码学与安全 · 计算机科学 2021-03-05 Anh Nguyen , Anh Tran

Vision Transformers (ViTs) have demonstrated remarkable performance in various computer vision tasks. However, the high computational complexity hinders ViTs' applicability on devices with limited memory and computing resources. Although…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Xuwei Xu , Sen Wang , Yudong Chen , Jiajun Liu

Vision Transformers (ViTs) have been widely used in large-scale Vision and Language Pre-training (VLP) models. Though previous VLP works have proved the effectiveness of ViTs, they still suffer from computational efficiency brought by the…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Chaoya Jiang , Haiyang Xu , Chenliang Li , Miang Yan , Wei Ye , Shikun Zhang , Bin Bi , Songfang Huang

Backdoor (Trojan) attacks are an important type of adversarial exploit against deep neural networks (DNNs), wherein a test instance is (mis)classified to the attacker's target class whenever the attacker's backdoor trigger is present. In…

机器学习 · 计算机科学 2023-08-22 Xi Li , Zhen Xiang , David J. Miller , George Kesidis

The increasing importance of both deep neural networks (DNNs) and cloud services for training them means that bad actors have more incentive and opportunity to insert backdoors to alter the behavior of trained models. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2022-12-19 Khondoker Murad Hossain , Tim Oates

Learning subtle representation about object parts plays a vital role in fine-grained visual recognition (FGVR) field. The vision transformer (ViT) achieves promising results on computer vision due to its attention mechanism. Nonetheless,…

计算机视觉与模式识别 · 计算机科学 2021-10-12 Yuan Zhang , Jian Cao , Ling Zhang , Xiangcheng Liu , Zhiyi Wang , Feng Ling , Weiqian Chen

Over-the-air federated learning (OTA-FL) improves communication efficiency by exploiting the superposition property of wireless channels, but this same property also creates a critical security vulnerability: the parameter server (PS)…

密码学与安全 · 计算机科学 2026-05-20 Xiaoyan Ma , Seohyun Lee , Taejoon Kim , Christopher G. Brinton

Vision Transformer (ViT) has recently gained significant attention in solving computer vision (CV) problems due to its capability of extracting informative features and modeling long-range dependencies through the attention mechanism.…

计算机视觉与模式识别 · 计算机科学 2024-07-12 Yao Qiang , Chengyin Li , Prashant Khanduri , Dongxiao Zhu

While current Vision Transformer (ViT) adapter methods have shown promising accuracy, their inference speed is implicitly hindered by inefficient memory access operations, e.g., standard normalization and frequent reshaping. In this work,…

计算机视觉与模式识别 · 计算机科学 2025-02-05 Dong Zhang , Rui Yan , Pingcheng Dong , Kwang-Ting Cheng

Vision Transformers (ViTs) are becoming a very popular paradigm for vision tasks as they achieve state-of-the-art performance on image classification. However, although early works implied that this network structure had increased…

计算机视觉与模式识别 · 计算机科学 2023-02-01 Hugo Lemarchant , Liangzi Li , Yiming Qian , Yuta Nakashima , Hajime Nagahara

Vision Transformers (ViTs) have become ubiquitous in computer vision. Despite their success, ViTs lack inductive biases, which can make it difficult to train them with limited data. To address this challenge, prior studies suggest training…

计算机视觉与模式识别 · 计算机科学 2023-12-29 Srijan Das , Tanmay Jain , Dominick Reilly , Pranav Balaji , Soumyajit Karmakar , Shyam Marjit , Xiang Li , Abhijit Das , Michael S. Ryoo

Backdoor attacks on deep neural networks have emerged as significant security threats, especially as DNNs are increasingly deployed in security-critical applications. However, most existing works assume that the attacker has access to the…

密码学与安全 · 计算机科学 2024-08-22 Jiahao Wang , Xianglong Zhang , Xiuzhen Cheng , Pengfei Hu , Guoming Zhang

Vision Transformers (ViTs) have achieved state-of-the-art performance on various vision tasks. However, ViTs' self-attention module is still arguably a major bottleneck, limiting their achievable hardware efficiency. Meanwhile, existing…

机器学习 · 计算机科学 2025-03-04 Haoran You , Zhanyi Sun , Huihong Shi , Zhongzhi Yu , Yang Zhao , Yongan Zhang , Chaojian Li , Baopu Li , Yingyan Celine Lin

Backdoor attacks impose a new threat in Deep Neural Networks (DNNs), where a backdoor is inserted into the neural network by poisoning the training dataset, misclassifying inputs that contain the adversary trigger. The major challenge for…

机器学习 · 计算机科学 2024-09-26 Yue Wang , Wenqing Li , Esha Sarkar , Muhammad Shafique , Michail Maniatakos , Saif Eddin Jabari