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Self-supervised learning (SSL) approaches have shown promising capabilities in learning the representation from unlabeled data. Amongst them, momentum-based frameworks have attracted significant attention. Despite being a great success,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Trung X. Pham , Axi Niu , Zhang Kang , Sultan Rizky Madjid , Ji Woo Hong , Daehyeok Kim , Joshua Tian Jin Tee , Chang D. Yoo

We propose Corder, a self-supervised contrastive learning framework for source code model. Corder is designed to alleviate the need of labeled data for code retrieval and code summarization tasks. The pre-trained model of Corder can be used…

Software Engineering · Computer Science 2021-05-25 Nghi D. Q. Bui , Yijun Yu , Lingxiao Jiang

Self-supervised learning (SSL) has emerged as a powerful technique for learning visual representations. While recent SSL approaches achieve strong results in global image understanding, they are limited in capturing the structured…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Oussama Hadjerci , Antoine Letienne , Mohamed Abbas Hedjazi , Adel Hafiane

Sign language recognition (SLR) has long been plagued by insufficient model representation capabilities. Although current pre-training approaches have alleviated this dilemma to some extent and yielded promising performance by employing…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Weichao Zhao , Hezhen Hu , Wengang Zhou , Yunyao Mao , Min Wang , Houqiang Li

Representation learning approaches typically rely on images of objects captured from a single perspective that are transformed using affine transformations. Additionally, self-supervised learning, a successful paradigm of representation…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Omiros Pantazis , Mathew Salvaris

Robust frame-wise embeddings are essential to perform video analysis and understanding tasks. We present a self-supervised method for representation learning based on aligning temporal video sequences. Our framework uses a transformer-based…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Keyne Oei , Amr Gomaa , Anna Maria Feit , João Belo

This paper strives for self-supervised learning of a feature space suitable for skeleton-based action recognition. Our proposal is built upon learning invariances to input skeleton representations and various skeleton augmentations via a…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Fida Mohammad Thoker , Hazel Doughty , Cees G. M. Snoek

The complexity of Sign Language (SL) data processing brings many challenges. The current approach to recognition of SL signs aims to translate RGB sign language videos through pose information into Word-based ID Glosses, which serve to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Sen Fang , Yalin Feng , Chunyu Sui , Hongbin Zhong , Yanxin Zhang , Hongwei Yi , Hezhen Hu , Dimitris N. Metaxas

In the near future, more and more machines will perform tasks in the vicinity of human spaces or support them directly in their spatially bound activities. In order to simplify the verbal communication and the interaction between robotic…

Machine Learning · Computer Science 2020-04-14 Sebastian Feld , Steffen Illium , Andreas Sedlmeier , Lenz Belzner

Recent advances in tracking sensors and pose estimation software enable smart systems to use trajectories of skeleton joint locations for supervised learning. We study the problem of accurately recognizing sign language words, which is key…

Computer Vision and Pattern Recognition · Computer Science 2022-02-04 Joachim Gudmundsson , Martin P. Seybold , John Pfeifer

Self-supervised node representation learning aims to learn node representations from unlabelled graphs that rival the supervised counterparts. The key towards learning informative node representations lies in how to effectively gain…

Machine Learning · Computer Science 2023-02-13 Wei Dong , Dawei Yan , Peng Wang

A steady momentum of innovations and breakthroughs has convincingly pushed the limits of unsupervised image representation learning. Compared to static 2D images, video has one more dimension (time). The inherent supervision existing in…

Computer Vision and Pattern Recognition · Computer Science 2021-01-28 Ting Yao , Yiheng Zhang , Zhaofan Qiu , Yingwei Pan , Tao Mei

In contrastive self-supervised learning, the common way to learn discriminative representation is to pull different augmented "views" of the same image closer while pushing all other images further apart, which has been proven to be…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Kaiyou Song , Shan Zhang , Zihao An , Zimeng Luo , Tong Wang , Jin Xie

We investigate a strategy for improving the efficiency of contrastive learning of visual representations by leveraging a small amount of supervised information during pre-training. We propose a semi-supervised loss, SuNCEt, based on…

Machine Learning · Computer Science 2020-12-03 Mahmoud Assran , Nicolas Ballas , Lluis Castrejon , Michael Rabbat

The success of most advanced facial expression recognition works relies heavily on large-scale annotated datasets. However, it poses great challenges in acquiring clean and consistent annotations for facial expression datasets. On the other…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Yuxuan Shu , Xiao Gu , Guang-Zhong Yang , Benny Lo

3D Skeleton-based human action recognition has attracted increasing attention in recent years. Most of the existing work focuses on supervised learning which requires a large number of labeled action sequences that are often expensive and…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Siyuan Yang , Jun Liu , Shijian Lu , Er Meng Hwa , Yongjian Hu , Alex C. Kot

Sign language recognition (SLR) refers to interpreting sign language glosses from given videos automatically. This research area presents a complex challenge in computer vision because of the rapid and intricate movements inherent in sign…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Muxin Pu , Mei Kuan Lim , Chun Yong Chong

We present a novel technique for self-supervised video representation learning by: (a) decoupling the learning objective into two contrastive subtasks respectively emphasizing spatial and temporal features, and (b) performing it…

Computer Vision and Pattern Recognition · Computer Science 2021-09-02 Zehua Zhang , David Crandall

Recent progress of self-supervised visual representation learning has achieved remarkable success on many challenging computer vision benchmarks. However, whether these techniques can be used for domain adaptation has not been explored. In…

Computer Vision and Pattern Recognition · Computer Science 2019-12-12 Jiaolong Xu , Liang Xiao , Antonio M. Lopez

Self supervised representation learning has recently attracted a lot of research interest for both the audio and visual modalities. However, most works typically focus on a particular modality or feature alone and there has been very…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-21 Abhinav Shukla , Konstantinos Vougioukas , Pingchuan Ma , Stavros Petridis , Maja Pantic