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We address the challenge of representing long captions in vision-language models, such as CLIP. By design these models are limited by fixed, absolute positional encodings, restricting inputs to a maximum of 77 tokens and hindering…

计算机视觉与模式识别 · 计算机科学 2025-03-31 Ivona Najdenkoska , Mohammad Mahdi Derakhshani , Yuki M. Asano , Nanne van Noord , Marcel Worring , Cees G. M. Snoek

Audio-visual zero-shot learning methods commonly build on features extracted from pre-trained models, e.g. video or audio classification models. However, existing benchmarks predate the popularization of large multi-modal models, such as…

计算机视觉与模式识别 · 计算机科学 2024-04-10 David Kurzendörfer , Otniel-Bogdan Mercea , A. Sophia Koepke , Zeynep Akata

To address the problem of long-tail distribution for the large vocabulary object detection task, existing methods usually divide the whole categories into several groups and treat each group with different strategies. These methods bring…

计算机视觉与模式识别 · 计算机科学 2021-04-05 Tong Wang , Yousong Zhu , Chaoyang Zhao , Wei Zeng , Jinqiao Wang , Ming Tang

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…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Ziteng Wang , Siqi Yang , Limeng Qiao , Lin Ma

CLIP models perform remarkably well on zero-shot classification and retrieval tasks. But recent studies have shown that learnt representations in CLIP are not well suited for dense prediction tasks like object detection, semantic…

计算机视觉与模式识别 · 计算机科学 2024-05-16 Pavan Kumar Anasosalu Vasu , Hadi Pouransari , Fartash Faghri , Oncel Tuzel

Contrastive Language-Image Pre-training (CLIP) has shown powerful zero-shot learning performance. Few-shot learning aims to further enhance the transfer capability of CLIP by giving few images in each class, aka 'few shots'. Most existing…

计算机视觉与模式识别 · 计算机科学 2024-04-22 Yaohui Li , Qifeng Zhou , Haoxing Chen , Jianbing Zhang , Xinyu Dai , Hao Zhou

Multimodal pre-trained models, such as CLIP, are popular for zero-shot classification due to their open-vocabulary flexibility and high performance. However, vision-language models, which compute similarity scores between images and class…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Mia Chiquier , Utkarsh Mall , Carl Vondrick

Prompt learning has emerged as an efficient and effective approach for transferring foundational Vision-Language Models (e.g., CLIP) to downstream tasks. However, current methods tend to overfit to seen categories, thereby limiting their…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Chen Xu , Yuhan Zhu , Guozhen Zhang , Haocheng Shen , Yixuan Liao , Xiaoxin Chen , Gangshan Wu , Limin Wang

Vision-language models pre-trained at large scale have shown unprecedented adaptability and generalization to downstream tasks. Although its discriminative potential has been widely explored, its reliability and uncertainty are still…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Julio Silva-Rodríguez , Ismail Ben Ayed , Jose Dolz

Recently, large-scale pre-trained vision-language models have presented benefits for alleviating class imbalance in long-tailed recognition. However, the long-tailed data distribution can corrupt the representation space, where the distance…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Siming Fu , Xiaoxuan He , Xinpeng Ding , Yuchen Cao , Hualiang Wang

Multi-modal (vision-language) models, such as CLIP, are replacing traditional supervised pre-training models (e.g., ImageNet-based pre-training) as the new generation of visual foundation models. These models with robust and aligned…

计算机视觉与模式识别 · 计算机科学 2024-01-05 Fan Liu , Tianshu Zhang , Wenwen Dai , Wenwen Cai , Xiaocong Zhou , Delong Chen

Pretrained models like CLIP have demonstrated impressive zero-shot classification capabilities across diverse visual domains, spanning natural images, artistic renderings, and abstract representations. However, real-world applications often…

计算机视觉与模式识别 · 计算机科学 2025-12-17 Ashish Mishra , Gyanaranjan Nayak , Tarun Kumar , Arpit Shah , Suparna Bhattacharya , Martin Foltin

Long-tailed visual recognition has received increasing attention in recent years. Due to the extremely imbalanced data distribution in long-tailed learning, the learning process shows great uncertainties. For example, the predictions of…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Zichang Tan , Jun Li , Jinhao Du , Jun Wan , Zhen Lei , Guodong Guo

Diffusion models have made significant advances recently in high-quality image synthesis and related tasks. However, diffusion models trained on real-world datasets, which often follow long-tailed distributions, yield inferior fidelity for…

计算机视觉与模式识别 · 计算机科学 2024-02-19 Divin Yan , Lu Qi , Vincent Tao Hu , Ming-Hsuan Yang , Meng Tang

In class incremental learning (CIL) a model must learn new classes in a sequential manner without forgetting old ones. However, conventional CIL methods consider a balanced distribution for each new task, which ignores the prevalence of…

计算机视觉与模式识别 · 计算机科学 2022-10-04 Xialei Liu , Yu-Song Hu , Xu-Sheng Cao , Andrew D. Bagdanov , Ke Li , Ming-Ming Cheng

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

Recent advancements in multimodal foundation models (e.g., CLIP) have excelled in zero-shot generalization. Prompt tuning involved in the knowledge transfer from foundation models to downstream tasks has gained significant attention…

计算机视觉与模式识别 · 计算机科学 2023-12-07 Xuejing Liu , Wei Tang , Jinghui Lu , Rui Zhao , Zhaojun Guo , Fei Tan

Contrastive Vision-Language Pre-training, known as CLIP, has provided a new paradigm for learning visual representations by using large-scale contrastive image-text pairs. It shows impressive performance on zero-shot knowledge transfer to…

计算机视觉与模式识别 · 计算机科学 2021-11-16 Renrui Zhang , Rongyao Fang , Wei Zhang , Peng Gao , Kunchang Li , Jifeng Dai , Yu Qiao , Hongsheng Li

The real-world data distribution is essentially long-tailed, which poses great challenge to the deep model. In this work, we propose a new method, Gradual Balanced Loss and Adaptive Feature Generator (GLAG) to alleviate imbalance. GLAG…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Zihan Zhang , Xiang Xiang

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…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Tiancheng Gu , Kaicheng Yang , Chaoyi Zhang , Yin Xie , Xiang An , Ziyong Feng , Dongnan Liu , Weidong Cai , Jiankang Deng