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Recent studies have shown that CLIP model's adversarial robustness in zero-shot classification tasks can be enhanced by adversarially fine-tuning its image encoder with adversarial examples (AEs), which are generated by minimizing the…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Jiacheng Zhang , Jinhao Li , Hanxun Huang , Sarah M. Erfani , Benjamin I. P. Rubinstein , Feng Liu

Contrastive Language-Image Pretraining (CLIP) has shown impressive zero-shot performance on image classification. However, state-of-the-art methods often rely on fine-tuning techniques like prompt learning and adapter-based tuning to…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Ans Munir , Faisal Z. Qureshi , Muhammad Haris Khan , Mohsen Ali

Contrastive Language--Image Pre-training (CLIP) has manifested remarkable improvements in zero-shot classification and cross-modal vision-language tasks. Yet, from a geometrical point of view, the CLIP embedding space has been found to have…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Sedigheh Eslami , Gerard de Melo

Multimodal contrastive learning aims to train a general-purpose feature extractor, such as CLIP, on vast amounts of raw, unlabeled paired image-text data. This can greatly benefit various complex downstream tasks, including cross-modal…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Ziqi Zhou , Shengshan Hu , Minghui Li , Hangtao Zhang , Yechao Zhang , Hai Jin

Contrastive Vision-Language Pre-training, known as CLIP, has shown promising effectiveness in addressing downstream image recognition tasks. However, recent works revealed that the CLIP model can be implanted with a downstream-oriented…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Jiawang Bai , Kuofeng Gao , Shaobo Min , Shu-Tao Xia , Zhifeng Li , Wei Liu

Pre-trained vision-language models (VLMs) such as CLIP have demonstrated strong zero-shot capabilities across diverse domains, yet remain highly vulnerable to adversarial perturbations that disrupt image-text alignment and compromise…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Jiaxiang Liu , Jiawei Du , Xiao Liu , Prayag Tiwari , Mingkun Xu

Image token removal is an efficient augmentation strategy for reducing the cost of computing image features. However, this efficient augmentation strategy has been found to adversely affect the accuracy of CLIP-based training. We…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Yifan Yang , Weiquan Huang , Yixuan Wei , Houwen Peng , Xinyang Jiang , Huiqiang Jiang , Fangyun Wei , Yin Wang , Han Hu , Lili Qiu , Yuqing Yang

Adversarial training enhances neural network robustness but suffers from a tendency to overfit and increased generalization errors on clean data. This work introduces CLAT, an innovative approach that mitigates adversarial overfitting by…

机器学习 · 计算机科学 2024-12-25 Bhavna Gopal , Huanrui Yang , Jingyang Zhang , Mark Horton , Yiran Chen

Vision-Language Models (VLMs), such as CLIP, have achieved significant zero-shot performance on downstream tasks with various fine-tuning adaptation methods. However, recent studies have proven that adversarial attacks can significantly…

计算机视觉与模式识别 · 计算机科学 2026-05-20 Jia-Wei Hai , Yijun Wang , Xiu-Shen Wei

Although deep learning models have shown impressive performance on supervised learning tasks, they often struggle to generalize well when the training (source) and test (target) domains differ. Unsupervised domain adaptation (DA) has…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Mainak Singha , Harsh Pal , Ankit Jha , Biplab Banerjee

Many adversarial defense methods have been proposed to enhance the adversarial robustness of natural language processing models. However, most of them introduce additional pre-set linguistic knowledge and assume that the synonym candidates…

计算与语言 · 计算机科学 2024-02-28 Yichen Yang , Xin Liu , Kun He

Adversarial training enhances the robustness of Machine Learning (ML) models against adversarial attacks. However, obtaining labeled training and adversarial training data in network/cybersecurity domains is challenging and costly.…

机器学习 · 计算机科学 2024-05-30 Mohamed elShehaby , Aditya Kotha , Ashraf Matrawy

While adversarial training and its variants have shown to be the most effective algorithms to defend against adversarial attacks, their extremely slow training process makes it hard to scale to large datasets like ImageNet. The key idea of…

机器学习 · 计算机科学 2022-06-07 Zhichao Huang , Yanbo Fan , Chen Liu , Weizhong Zhang , Yong Zhang , Mathieu Salzmann , Sabine Süsstrunk , Jue Wang

Contrastive Language-Image Pre-training (CLIP) has significantly boosted the performance of various vision-language tasks by scaling up the dataset with image-text pairs collected from the web. However, the presence of intrinsic noise and…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Kaicheng Yang , Jiankang Deng , Xiang An , Jiawei Li , Ziyong Feng , Jia Guo , Jing Yang , Tongliang Liu

Recent studies have revealed the vulnerability of pre-trained language models to adversarial attacks. Existing adversarial defense techniques attempt to reconstruct adversarial examples within feature or text spaces. However, these methods…

计算与语言 · 计算机科学 2024-04-02 Heng Yang , Ke Li

Large pre-trained Vision-Language Models (VLMs) like CLIP, despite having remarkable generalization ability, are highly vulnerable to adversarial examples. This work studies the adversarial robustness of VLMs from the novel perspective of…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Lin Li , Haoyan Guan , Jianing Qiu , Michael Spratling

The robustness of Vision-Language Models (VLMs) such as CLIP is critical for their deployment in safety-critical applications like autonomous driving, healthcare diagnostics, and security systems, where accurate interpretation of visual and…

计算机视觉与模式识别 · 计算机科学 2024-10-22 Yuhan Liang , Yijun Li , Yumeng Niu , Qianhe Shen , Hangyu Liu

Large-scale pre-trained vision-language models like CLIP have demonstrated impressive performance across various tasks, and exhibit remarkable zero-shot generalization capability, while they are also vulnerable to imperceptible adversarial…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Sibo Wang , Jie Zhang , Zheng Yuan , Shiguang Shan

Contrastive Language-Image Pretraining (CLIP) has demonstrated strong zero-shot performance across diverse downstream text-image tasks. Existing CLIP methods typically optimize a contrastive objective using negative samples drawn from each…

机器学习 · 计算机科学 2025-10-23 Haotian Sun , Yitong Li , Yuchen Zhuang , Niao He , Hanjun Dai , Bo Dai

Vision-language models (VLMs) such as CLIP demonstrate strong generalization in zero-shot classification but remain highly vulnerable to adversarial perturbations. Existing methods primarily focus on adversarial fine-tuning or prompt…

计算机视觉与模式识别 · 计算机科学 2026-03-02 Xingyu Zhu , Beier Zhu , Shuo Wang , Kesen Zhao , Hanwang Zhang