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Self-supervised representation learning has shown significant improvement in Natural Language Processing and 2D Computer Vision. However, existing methods face difficulties in representing 3D data because of its unordered and uneven…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Pengbo Li , Yiding Sun , Haozhe Cheng

This paper presents a simple yet effective framework MaskCLIP, which incorporates a newly proposed masked self-distillation into contrastive language-image pretraining. The core idea of masked self-distillation is to distill representation…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Xiaoyi Dong , Jianmin Bao , Yinglin Zheng , Ting Zhang , Dongdong Chen , Hao Yang , Ming Zeng , Weiming Zhang , Lu Yuan , Dong Chen , Fang Wen , Nenghai Yu

Contrastive self-supervised learning has outperformed supervised pretraining on many downstream tasks like segmentation and object detection. However, current methods are still primarily applied to curated datasets like ImageNet. In this…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Wouter Van Gansbeke , Simon Vandenhende , Stamatios Georgoulis , Luc Van Gool

Cross-modal representation learning learns a shared embedding between two or more modalities to improve performance in a given task compared to using only one of the modalities. Cross-modal representation learning from different data types…

Machine Learning · Computer Science 2023-09-12 Felix Ott , David Rügamer , Lucas Heublein , Bernd Bischl , Christopher Mutschler

Contemporary deep clustering approaches often rely on either contrastive or non-contrastive techniques to acquire effective representations for clustering tasks. Contrastive methods leverage negative pairs to achieve homogenous…

Machine Learning · Computer Science 2023-11-03 Abhishek Kumar , Dong-Gyu Lee

Self-supervised learning has proved effective for skeleton-based human action understanding, which is an important yet challenging topic. Previous works mainly rely on contrastive learning or masked motion modeling paradigm to model the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Jiahang Zhang , Lilang Lin , Jiaying Liu

We perform a comprehensive benchmarking of contrastive frameworks for learning multimodal representations in the medical domain. Through this study, we aim to answer the following research questions: (i) How transferable are general-domain…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Shuvendu Roy , Yasaman Parhizkar , Franklin Ogidi , Vahid Reza Khazaie , Michael Colacci , Ali Etemad , Elham Dolatabadi , Arash Afkanpour

Contrastive learning is a well-established paradigm in representation learning. The standard framework of contrastive learning minimizes the distance between "similar" instances and maximizes the distance between dissimilar ones in the…

Machine Learning · Computer Science 2025-02-06 Naghmeh Ghanooni , Barbod Pajoum , Harshit Rawal , Sophie Fellenz , Vo Nguyen Le Duy , Marius Kloft

The rapid growth of 3D digital content necessitates expandable recognition systems for open-world scenarios. However, existing 3D class-incremental learning methods struggle under extreme data scarcity due to geometric misalignment and…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Tuo Xiang , Xuemiao Xu , Bangzhen Liu , Jinyi Li , Yong Li , Shengfeng He

Improving the performance of semantic segmentation models using multispectral information is crucial, especially for environments with low-light and adverse conditions. Multi-modal fusion techniques pursue either the learning of…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Aniruddh Sikdar , Jayant Teotia , Suresh Sundaram

We develop an approach to learning visual representations that embraces multimodal data, driven by a combination of intra- and inter-modal similarity preservation objectives. Unlike existing visual pre-training methods, which solve a proxy…

Computer Vision and Pattern Recognition · Computer Science 2021-04-28 Xin Yuan , Zhe Lin , Jason Kuen , Jianming Zhang , Yilin Wang , Michael Maire , Ajinkya Kale , Baldo Faieta

Human Activity Recognition is a field of research where input data can take many forms. Each of the possible input modalities describes human behaviour in a different way, and each has its own strengths and weaknesses. We explore the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Razvan Brinzea , Bulat Khaertdinov , Stylianos Asteriadis

Various state-of-the-art self-supervised visual representation learning approaches take advantage of data from multiple sensors by aligning the feature representations across views and/or modalities. In this work, we investigate how…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Thomas M. Hehn , Julian F. P. Kooij , Dariu M. Gavrila

Self-supervised learning (SSL) has gained widespread attention in the remote sensing (RS) and earth observation (EO) communities owing to its ability to learn task-agnostic representations without human-annotated labels. Nevertheless, most…

Computer Vision and Pattern Recognition · Computer Science 2023-08-07 Dilxat Muhtar , Xueliang Zhang , Pengfeng Xiao , Zhenshi Li , Feng Gu

Multi-modal contrastive learning (MMCL) has recently garnered considerable interest due to its superior performance in visual tasks, achieved by embedding multi-modal data, such as visual-language pairs. However, there still lack…

Computer Vision and Pattern Recognition · Computer Science 2023-06-08 Qi Zhang , Yifei Wang , Yisen Wang

Multimodal learning aims to capture both shared and private information from multiple modalities. However, existing methods that project all modalities into a single latent space for fusion often overlook the asynchronous, multi-level…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Chunlei Meng , Guanhong Huang , Rong Fu , Runmin Jian , Zhongxue Gan , Chun Ouyang

A fundamental and challenging problem in deep learning is catastrophic forgetting, i.e. the tendency of neural networks to fail to preserve the knowledge acquired from old tasks when learning new tasks. This problem has been widely…

Computer Vision and Pattern Recognition · Computer Science 2022-05-23 Guanglei Yang , Enrico Fini , Dan Xu , Paolo Rota , Mingli Ding , Moin Nabi , Xavier Alameda-Pineda , Elisa Ricci

This paper explores the tasks of leveraging auxiliary modalities which are only available at training to enhance multimodal representation learning through cross-modal Knowledge Distillation (KD). The widely adopted mutual information…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Mengxi Chen , Linyu Xing , Yu Wang , Ya Zhang

Recently, a noticeable trend has emerged in developing pre-trained foundation models in the domains of CV and NLP. However, for molecular pre-training, there lacks a universal model capable of effectively applying to various categories of…

Biomolecules · Quantitative Biology 2024-05-21 Shikun Feng , Yuyan Ni , Minghao Li , Yanwen Huang , Zhi-Ming Ma , Wei-Ying Ma , Yanyan Lan

Multi-view representation learning has developed rapidly over the past decades and has been applied in many fields. However, most previous works assumed that each view is complete and aligned. This leads to an inevitable deterioration in…

Computer Vision and Pattern Recognition · Computer Science 2022-11-10 Yiming Wang , Dongxia Chang , Zhiqiang Fu , Jie Wen , Yao Zhao