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Adapting pre-trained models to open classes is a challenging problem in machine learning. Vision-language models fully explore the knowledge of text modality, demonstrating strong zero-shot recognition performance, which is naturally suited…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Zhengqing Gao , Xiang Ao , Xu-Yao Zhang , Cheng-Lin Liu

Federated Prompt Tuning (FPT) is an efficient method for cross-client collaborative fine-tuning of large Vision-Language Models (VLMs). However, models tuned using FPT are vulnerable to adversarial attacks, leading to misclassification in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-10 Kun Zhai , Siheng Chen , Xingjun Ma , Yu-Gang Jiang

As unlabeled data carry rich task-relevant information, they are proven useful for few-shot learning of language model. The question is how to effectively make use of such data. In this work, we revisit the self-training technique for…

Computation and Language · Computer Science 2021-10-05 Yiming Chen , Yan Zhang , Chen Zhang , Grandee Lee , Ran Cheng , Haizhou Li

Fine-tuning vision-language models (VLMs) with abundant unlabeled data recently has attracted increasing attention. Existing methods that resort to the pseudolabeling strategy would suffer from heavily incorrect hard pseudolabels when VLMs…

Machine Learning · Computer Science 2024-06-18 Jiahan Zhang , Qi Wei , Feng Liu , Lei Feng

The conventional modus operandi for adapting pre-trained vision-language models (VLMs) during test-time involves tuning learnable prompts, ie, test-time prompt tuning. This paper introduces Test-Time Low-rank adaptation (TTL) as an…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Raza Imam , Hanan Gani , Muhammad Huzaifa , Karthik Nandakumar

Visual Prompt Tuning (VPT) of pre-trained Vision Transformers (ViTs) has proven highly effective as a parameter-efficient fine-tuning technique for adapting large models to downstream tasks with limited data. Its parameter efficiency makes…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 M Yashwanth , Sharannya Ghosh , Aditay Tripathi , Anirban Chakraborty

Existing solutions to zero-shot text classification either conduct prompting with pre-trained language models, which is sensitive to the choices of templates, or rely on large-scale annotated data of relevant tasks for meta-tuning. In this…

Computation and Language · Computer Science 2023-05-26 Chaoqun Liu , Wenxuan Zhang , Guizhen Chen , Xiaobao Wu , Anh Tuan Luu , Chip Hong Chang , Lidong Bing

Task-adaptive pre-training (TAPT) and Self-training (ST) have emerged as the major semi-supervised approaches to improve natural language understanding (NLU) tasks with massive amount of unlabeled data. However, it's unclear whether they…

Computation and Language · Computer Science 2023-02-21 Shiyang Li , Semih Yavuz , Wenhu Chen , Xifeng Yan

Prompt tuning based on Context Optimization (CoOp) effectively adapts visual-language models (VLMs) to downstream tasks by inferring additional learnable prompt tokens. However, these tokens are less discriminative as they are independent…

Computer Vision and Pattern Recognition · Computer Science 2024-11-25 Hantao Yao , Rui Zhang , Lu Yu , Yongdong Zhang , Changsheng Xu

Vision-language models (VLMs), e.g., CLIP, have shown remarkable potential in zero-shot image classification. However, adapting these models to new domains remains challenging, especially in unsupervised settings where labeled data is…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Eman Ali , Sathira Silva , Muhammad Haris Khan

Recent advances in large-scale vision-language models have achieved impressive performance in various zero-shot image classification tasks. While prior studies have demonstrated significant improvements by introducing few-shot labelled…

Computer Vision and Pattern Recognition · Computer Science 2024-07-31 Eman Ali , Muhammad Haris Khan

Prompt tuning methods for Graph Neural Networks (GNNs) have become popular to address the semantic gap between pre-training and fine-tuning steps. However, existing GNN prompting methods rely on labeled data and involve lightweight…

Machine Learning · Computer Science 2025-05-23 Peyman Baghershahi , Sourav Medya

Few-shot unsupervised domain adaptation (FS-UDA) leverages a limited amount of labeled data from a source domain to enable accurate classification in an unlabeled target domain. Despite recent advancements, current approaches of FS-UDA…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Wanqi Yang , Haoran Wang , Lei Wang , Ge Song , Ming Yang , Yang Gao

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…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Jia-Wei Hai , Yijun Wang , Xiu-Shen Wei

Recently, prompt tuning \cite{lester2021power} has gradually become a new paradigm for NLP, which only depends on the representation of the words by freezing the parameters of pre-trained language models (PLMs) to obtain remarkable…

Computation and Language · Computer Science 2022-01-31 Pan He , Yuxi Chen , Yan Wang , Yanru Zhang

This paper proposes a novel framework for multi-label image recognition without any training data, called data-free framework, which uses knowledge of pre-trained Large Language Model (LLM) to learn prompts to adapt pretrained…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Shuo Yang , Zirui Shang , Yongqi Wang , Derong Deng , Hongwei Chen , Qiyuan Cheng , Xinxiao Wu

Recent approaches leveraging multi-modal pre-trained models like CLIP for Unsupervised Domain Adaptation (UDA) have shown significant promise in bridging domain gaps and improving generalization by utilizing rich semantic knowledge and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Tung-Long Vuong , Hoang Phan , Vy Vo , Anh Bui , Thanh-Toan Do , Trung Le , Dinh Phung

Pre-trained vision-language models learn massive data to model unified representations of images and natural languages, which can be widely applied to downstream machine learning tasks. In addition to zero-shot inference, in order to better…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Qian-Wei Wang , Yuqiu Xie , Letian Zhang , Zimo Liu , Shu-Tao Xia

Current pre-trained vision-language models, such as CLIP, have demonstrated remarkable zero-shot generalization capabilities across various downstream tasks. However, their performance significantly degrades when test inputs exhibit…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Junhui Yin , Xinyu Zhang , Lin Wu , Xiaojie Wang

Few-shot, fine-grained classification in computer vision poses significant challenges due to the need to differentiate subtle class distinctions with limited data. This paper presents a novel method that enhances the Contrastive…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Eric Brouwer , Jan Erik van Woerden , Gertjan Burghouts , Matias Valdenegro-Toro , Marco Zullich