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The rapid growth of deep learning has brought about powerful models that can handle various tasks, like identifying images and understanding language. However, adversarial attacks, an unnoticed alteration, can deceive models, leading to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Sampriti Soor , Alik Pramanick , Jothiprakash K , Arijit Sur

Contrastive Language-Image Pre-training (CLIP) has demonstrated impressive capabilities in open-vocabulary classification. The class token in the image encoder is trained to capture the global features to distinguish different text…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Yuqi Lin , Minghao Chen , Kaipeng Zhang , Hengjia Li , Mingming Li , Zheng Yang , Dongqin Lv , Binbin Lin , Haifeng Liu , Deng Cai

During the preceding biennium, vision-language pre-training has achieved noteworthy success on several downstream tasks. Nevertheless, acquiring high-quality image-text pairs, where the pairs are entirely exclusive of each other, remains a…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Yuting Gao , Jinfeng Liu , Zihan Xu , Tong Wu Enwei Zhang , Wei Liu , Jie Yang , Ke Li , Xing Sun

Inspired by the remarkable zero-shot generalization capacity of vision-language pre-trained model, we seek to leverage the supervision from CLIP model to alleviate the burden of data labeling. However, such supervision inevitably contains…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Junchu Huang , Weijie Chen , Shicai Yang , Di Xie , Shiliang Pu , Yueting Zhuang

Contrastive Language-Image Pretraining (CLIP) has emerged as a novel paradigm to learn visual models from language supervision. While researchers continue to push the frontier of CLIP, reproducing these works remains challenging. This is…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Yufeng Cui , Lichen Zhao , Feng Liang , Yangguang Li , Jing Shao

Contrastive Language-Image Pre-training (CLIP) is an approach that has advanced research and applications in computer vision, fueling modern recognition systems and generative models. We believe that the main ingredient to the success of…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Hu Xu , Saining Xie , Xiaoqing Ellen Tan , Po-Yao Huang , Russell Howes , Vasu Sharma , Shang-Wen Li , Gargi Ghosh , Luke Zettlemoyer , Christoph Feichtenhofer

Large-scale natural image-text datasets, especially those automatically collected from the web, often suffer from loose semantic alignment due to weak supervision, while medical datasets tend to have high cross-modal correlation but low…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Shengzhu Yang , Jiawei Du , Shuai Lu , Weihang Zhang , Ningli Wang , Huiqi Li

Deep Neural Networks (DNNs) are susceptible to backdoor attacks, where adversaries poison training data to implant backdoor into the victim model. Current backdoor defenses on poisoned data often suffer from high computational costs or low…

Multimedia · Computer Science 2025-07-28 Binyan Xu , Fan Yang , Xilin Dai , Di Tang , Kehuan Zhang

As a general-purpose vision-language pretraining model, CLIP demonstrates strong generalization ability in image-text alignment tasks and has been widely adopted in downstream applications such as image classification and image-text…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Kuanrong Liu , Siyuan Liang , Cheng Qian , Ming Zhang , Xiaochun Cao

The scarcity of annotated data has sparked significant interest in unsupervised pre-training methods that leverage medical reports as auxiliary signals for medical visual representation learning. However, existing research overlooks the…

Computer Vision and Pattern Recognition · Computer Science 2024-02-06 Zhe Li , Laurence T. Yang , Bocheng Ren , Xin Nie , Zhangyang Gao , Cheng Tan , Stan Z. Li

At present, backdoor attacks attract attention as they do great harm to deep learning models. The adversary poisons the training data making the model being injected with a backdoor after being trained unconsciously by victims using the…

Cryptography and Security · Computer Science 2023-03-06 Shengfang Zhai , Qingni Shen , Xiaoyi Chen , Weilong Wang , Cong Li , Yuejian Fang , Zhonghai Wu

After pre-training on extensive image-text pairs, Contrastive Language-Image Pre-training (CLIP) demonstrates promising performance on a wide variety of benchmarks. However, a substantial volume of multimodal interleaved documents remains…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Tiancheng Gu , Kaicheng Yang , Chaoyi Zhang , Yin Xie , Xiang An , Ziyong Feng , Dongnan Liu , Weidong Cai , Jiankang Deng

Contrastive Language-Image Pretraining (CLIP) models excel at understanding image-text relationships but struggle with adapting to new data without forgetting prior knowledge. To address this, models are typically fine-tuned using both new…

Machine Learning · Computer Science 2026-05-06 Ryan King , Gang Li , Bobak Mortazavi , Tianbao Yang

Continual learning (CL) aims to help deep neural networks learn new knowledge while retaining what has been learned. Owing to their powerful generalizability, pre-trained vision-language models such as Contrastive Language-Image…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Saurav Jha , Dong Gong , Lina Yao

Contrastive Language-Image Pretraining (CLIP) stands out as a prominent method for image representation learning. Various architectures, from vision transformers (ViTs) to convolutional networks (ResNets) have been trained with CLIP to…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Cristian Rodriguez-Opazo , Ehsan Abbasnejad , Damien Teney , Hamed Damirchi , Edison Marrese-Taylor , Anton van den Hengel

Contrastive language image pretraining (CLIP) is a standard method for training vision-language models. While CLIP is scalable, promptable, and robust to distribution shifts on image classification tasks, it lacks object localization…

The surge in multimodal AI's success has sparked concerns over data privacy in vision-and-language tasks. While CLIP has revolutionized multimodal learning through joint training on images and text, its potential to unintentionally disclose…

Machine Learning · Computer Science 2024-03-04 Alyssa Huang , Peihan Liu , Ryumei Nakada , Linjun Zhang , Wanrong Zhang

Contrastive Language-Image Pre-training (CLIP) has become a foundation model and has been applied to various vision and multimodal tasks. However, recent works indicate that CLIP falls short in distinguishing detailed differences in images…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Yinqi Li , Jiahe Zhao , Hong Chang , Ruibing Hou , Shiguang Shan , Xilin Chen

Backdoor data poisoning, inserted within instruction examples used to fine-tune a foundation Large Language Model (LLM) for downstream tasks (\textit{e.g.,} sentiment prediction), is a serious security concern due to the evasive nature of…

Cryptography and Security · Computer Science 2024-08-23 Jayaram Raghuram , George Kesidis , David J. Miller

Poisoning backdoor attacks involve an adversary manipulating the training data to induce certain behaviors in the victim model by inserting a trigger in the signal at inference time. We adapted clean label backdoor (CLBD)-data poisoning…

Cryptography and Security · Computer Science 2024-09-16 Henry Li Xinyuan , Sonal Joshi , Thomas Thebaud , Jesus Villalba , Najim Dehak , Sanjeev Khudanpur