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Recent progress in contrastive learning has revolutionized unsupervised representation learning. Concretely, multiple views (augmentations) from the same image are encouraged to map to the similar embeddings, while views from different…

Computer Vision and Pattern Recognition · Computer Science 2021-01-20 Nanxuan Zhao , Zhirong Wu , Rynson W. H. Lau , Stephen Lin

Previous work on action representation learning focused on global representations for short video clips. In contrast, many practical applications, such as video alignment, strongly demand learning the intensive representation of long…

Computer Vision and Pattern Recognition · Computer Science 2023-03-03 Minghao Chen , Renbo Tu , Chenxi Huang , Yuqi Lin , Boxi Wu , Deng Cai

Self-supervision is recently surging at its new frontier of graph learning. It facilitates graph representations beneficial to downstream tasks; but its success could hinge on domain knowledge for handcraft or the often expensive trials and…

Machine Learning · Computer Science 2022-01-06 Yuning You , Tianlong Chen , Zhangyang Wang , Yang Shen

Visual scenes are extremely diverse, not only because there are infinite possible combinations of objects and backgrounds but also because the observations of the same scene may vary greatly with the change of viewpoints. When observing a…

Computer Vision and Pattern Recognition · Computer Science 2024-01-05 Jinyang Yuan , Tonglin Chen , Zhimeng Shen , Bin Li , Xiangyang Xue

Self-supervised learning (SSL) holds promise in leveraging large amounts of unlabeled data. However, the success of popular SSL methods has limited on single-centric-object images like those in ImageNet and ignores the correlation among the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Zhaowen Li , Yousong Zhu , Fan Yang , Wei Li , Chaoyang Zhao , Yingying Chen , Zhiyang Chen , Jiahao Xie , Liwei Wu , Rui Zhao , Ming Tang , Jinqiao Wang

We propose a semi-supervised learning approach for video classification, VideoSSL, using convolutional neural networks (CNN). Like other computer vision tasks, existing supervised video classification methods demand a large amount of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Longlong Jing , Toufiq Parag , Zhe Wu , Yingli Tian , Hongcheng Wang

Reinforcement Learning with Verifiable Rewards (RLVR) has substantially advanced the video understanding capabilities of Multimodal Large Language Models (MLLMs). However, the rapid progress of MLLMs is outpacing the complexity of existing…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Zefeng He , Xiaoye Qu , Yafu Li , Siyuan Huang , Daizong Liu , Yu Cheng

Multi-view learning (MVL) has gained great success in integrating information from multiple perspectives of a dataset to improve downstream task performance. To make MVL methods more practical in an open-ended environment, this paper…

Machine Learning · Computer Science 2023-10-16 Depeng Li , Tianqi Wang , Junwei Chen , Kenji Kawaguchi , Cheng Lian , Zhigang Zeng

We introduce Consistent Assignment for Representation Learning (CARL), an unsupervised learning method to learn visual representations by combining ideas from self-supervised contrastive learning and deep clustering. By viewing contrastive…

Machine Learning · Computer Science 2023-10-23 Thalles Silva , Adín Ramírez Rivera

Self-supervised visual representation learning traditionally focuses on image-level instance discrimination. Our study introduces an innovative, fine-grained dimension by integrating patch-level discrimination into these methodologies. This…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Ali Javidani , Mohammad Amin Sadeghi , Babak Nadjar Araabi

Unsupervised learning from visual data is one of the most difficult challenges in computer vision, being a fundamental task for understanding how visual recognition works. From a practical point of view, learning from unsupervised visual…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Ioana Croitoru , Simion-Vlad Bogolin , Marius Leordeanu

Unsupervised visual representation learning has gained much attention from the computer vision community because of the recent achievement of contrastive learning. Most of the existing contrastive learning frameworks adopt the instance…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Mingkai Zheng , Fei Wang , Shan You , Chen Qian , Changshui Zhang , Xiaogang Wang , Chang Xu

With the advent of large-scale pre-trained models, interest in adapting and exploiting them for continual learning scenarios has grown. In this paper, we propose an approach to exploiting pre-trained vision-language models (e.g. CLIP) that…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Xialei Liu , Xusheng Cao , Haori Lu , Jia-wen Xiao , Andrew D. Bagdanov , Ming-Ming Cheng

Visual place recognition is a key to unlocking spatial navigation for animals, humans and robots. While state-of-the-art approaches are trained in a supervised manner and therefore hardly capture the information needed for generalizing to…

Computer Vision and Pattern Recognition · Computer Science 2023-12-25 Mohamed Adel Musallam , Vincent Gaudillière , Djamila Aouada

Despite recent advancements in neural 3D reconstruction, the dependence on dense multi-view captures restricts their broader applicability. In this work, we propose \textbf{ViewCrafter}, a novel method for synthesizing high-fidelity novel…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Wangbo Yu , Jinbo Xing , Li Yuan , Wenbo Hu , Xiaoyu Li , Zhipeng Huang , Xiangjun Gao , Tien-Tsin Wong , Ying Shan , Yonghong Tian

Visual Self-Supervised Learning (SSL) currently underperforms Contrastive Language-Image Pretraining (CLIP) in multimodal settings such as Visual Question Answering (VQA). This multimodal gap is often attributed to the semantics introduced…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 David Fan , Shengbang Tong , Jiachen Zhu , Koustuv Sinha , Zhuang Liu , Xinlei Chen , Michael Rabbat , Nicolas Ballas , Yann LeCun , Amir Bar , Saining Xie

We address the problem of video representation learning without human-annotated labels. While previous efforts address the problem by designing novel self-supervised tasks using video data, the learned features are merely on a…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Jiangliu Wang , Jianbo Jiao , Linchao Bao , Shengfeng He , Yunhui Liu , Wei Liu

The goal of self-supervised learning from images is to construct image representations that are semantically meaningful via pretext tasks that do not require semantic annotations for a large training set of images. Many pretext tasks lead…

Computer Vision and Pattern Recognition · Computer Science 2019-12-05 Ishan Misra , Laurens van der Maaten

When perceiving the world from multiple viewpoints, humans have the ability to reason about the complete objects in a compositional manner even when an object is completely occluded from certain viewpoints. Meanwhile, humans are able to…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Chengmin Gao , Bin Li

Self-supervised learning has achieved remarkable success in learning visual representations from clean data, yet remains challenging when clean observations are sparse or not available at all. In this paper, we demonstrate that pretrained…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Konstantinos Alexis , Giorgos Giannopoulos , Dimitrios Gunopulos