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Large Vision-Language Models (LVLMs) have made significant strides in multimodal comprehension, thanks to extensive pre-training and fine-tuning on large-scale visual datasets. However, despite their robust textual safety mechanisms, they…

Computation and Language · Computer Science 2025-03-04 Wei Zhao , Zhe Li , Yige Li , Jun Sun

The current modus operandi in adapting pre-trained models involves updating all the backbone parameters, ie, full fine-tuning. This paper introduces Visual Prompt Tuning (VPT) as an efficient and effective alternative to full fine-tuning…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Menglin Jia , Luming Tang , Bor-Chun Chen , Claire Cardie , Serge Belongie , Bharath Hariharan , Ser-Nam Lim

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

Adversarial attacks expose a fundamental vulnerability in modern deep vision models by exploiting their dependence on dense, pixel-level representations that are highly sensitive to imperceptible perturbations. Traditional defense…

Computer Vision and Pattern Recognition · Computer Science 2025-11-13 Jingjie He , Weijie Liang , Zihan Shan , Matthew Caesar

Contrastive Language-Image Pre-training (CLIP) has drawn increasing attention recently for its transferable visual representation learning. However, due to the semantic gap within datasets, CLIP's pre-trained image-text alignment becomes…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Longtian Qiu , Renrui Zhang , Ziyu Guo , Ziyao Zeng , Zilu Guo , Yafeng Li , Guangnan Zhang

Limited labeled data makes it hard to train models from scratch in medical domain, and an important paradigm is pre-training and then fine-tuning. Large pre-trained models contain rich representations, which can be adapted to downstream…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Along He , Kai Wang , Zhihong Wang , Tao Li , Huazhu Fu

CLIP (Contrastive Language-Image Pre-training) uses contrastive learning from noise image-text pairs to excel at recognizing a wide array of candidates, yet its focus on broad associations hinders the precision in distinguishing subtle…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Ziyu Liu , Zeyi Sun , Yuhang Zang , Wei Li , Pan Zhang , Xiaoyi Dong , Yuanjun Xiong , Dahua Lin , Jiaqi Wang

Vision-Language Pretraining (VLP) has shown impressive results on diverse downstream tasks by offline training on large-scale datasets. Regarding the growing nature of real-world data, such an offline training paradigm on ever-expanding…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Hongguang Zhu , Yunchao Wei , Xiaodan Liang , Chunjie Zhang , Yao Zhao

Pre-trained language models (PLMs) have attracted enormous attention over the past few years with their unparalleled performances. Meanwhile, the soaring cost to train PLMs as well as their amazing generalizability have jointly contributed…

Computation and Language · Computer Science 2024-06-10 Tianrong Zhang , Zhaohan Xi , Ting Wang , Prasenjit Mitra , Jinghui Chen

Despite the success of Vision-Language Models (VLMs) like CLIP in aligning vision and language, their proficiency in detailed, fine-grained visual comprehension remains a key challenge. We present CLIP-IN, a novel framework that bolsters…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Ziteng Wang , Siqi Yang , Limeng Qiao , Lin Ma

Backdoor attacks pose a serious threat to the security of large language models (LLMs), causing them to exhibit anomalous behavior under specific trigger conditions. The design of backdoor triggers has evolved from fixed triggers to dynamic…

Cryptography and Security · Computer Science 2026-04-15 Haotian Jin , Yang Li , Haihui Fan , Lin Shen , Xiangfang Li , Bo Li

Foundation Vision-Language Models (VLMs) like CLIP exhibit strong generalization capabilities due to large-scale pretraining on diverse image-text pairs. However, their performance often degrades when applied to target datasets with…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Debarshi Brahma , Soma Biswas

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

Unified multi-modal encoders that bind vision, audio, and other sensors into a shared embedding space are attractive building blocks for robot perception and decision-making. However, on-robot deployment exposes the vision branch to…

Robotics · Computer Science 2025-09-19 Yuhong Lu

Prompt learning has become a dominant paradigm for adapting vision-language models (VLMs) such as CLIP to downstream tasks without modifying pretrained weights. While extending prompts to both vision and text encoders across multiple…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Sajjad Ghiasvand , Haniyeh Ehsani Oskouie , Mahnoosh Alizadeh , Ramtin Pedarsani

The remarkable success of large-scale contrastive pre-training has been largely driven by by vast yet static datasets. However, as the scaling paradigm evolves, this paradigm encounters a fundamental challenge when applied to dynamic data…

Machine Learning · Computer Science 2025-11-25 Xiaoyu Yang , Jie Lu , En Yu , Wei Duan

Safety, security, and compliance are essential requirements when aligning large language models (LLMs). However, many seemingly aligned LLMs are soon shown to be susceptible to jailbreak attacks. These attacks aim to circumvent the models'…

Cryptography and Security · Computer Science 2025-06-05 Chen Xiong , Xiangyu Qi , Pin-Yu Chen , Tsung-Yi Ho

Deep neural networks (DNNs) are known to be vulnerable to adversarial attacks even under a black-box setting where the adversary can only query the model. Particularly, query-based black-box adversarial attacks estimate adversarial…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Xin Wang , Kai Chen , Xingjun Ma , Zhineng Chen , Jingjing Chen , Yu-Gang Jiang

Vision-Language Models (VLMs), such as CLIP, exhibit strong image-text comprehension abilities, facilitating advances in several downstream tasks such as zero-shot image classification, image-text retrieval, and text-to-image generation.…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Le Zhang , Rabiul Awal , Aishwarya Agrawal

Pre-trained vision-language (V-L) models such as CLIP have shown excellent generalization ability to downstream tasks. However, they are sensitive to the choice of input text prompts and require careful selection of prompt templates to…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Muhammad Uzair Khattak , Hanoona Rasheed , Muhammad Maaz , Salman Khan , Fahad Shahbaz Khan