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Contrastive Learning (CL) has emerged as one of the most successful paradigms for unsupervised visual representation learning, yet it often depends on intensive manual data augmentations. With the rise of generative models, especially…

Machine Learning · Computer Science 2024-03-20 Yifei Wang , Jizhe Zhang , Yisen Wang

Many leading self-supervised methods for unsupervised representation learning, in particular those for embedding image features, are built on variants of the instance discrimination task, whose optimization is known to be prone to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Daniel Shalam , Simon Korman

Contrastive learning, a prominent approach within self-supervised learning, has demonstrated significant effectiveness in developing generalizable models for various applications involving natural images. However, recent research indicates…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Zijie Cheng , Boxuan Li , André Altmann , Pearse A Keane , Yukun Zhou

Graph representation learning (GRL) is critical for graph-structured data analysis. However, most of the existing graph neural networks (GNNs) heavily rely on labeling information, which is normally expensive to obtain in the real world.…

Machine Learning · Computer Science 2022-11-22 Yizhen Zheng , Ming Jin , Shirui Pan , Yuan-Fang Li , Hao Peng , Ming Li , Zhao Li

Self-supervised contrastive learning heavily relies on the view variance brought by data augmentation, so that it can learn a view-invariant pre-trained representation. Beyond increasing the view variance for contrast, this work focuses on…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Yong Zhang , Rui Zhu , Shifeng Zhang , Xu Zhou , Shifeng Chen , Xiaofan Chen

Graph Contrastive Learning (GCL) has emerged as the foremost approach for self-supervised learning on graph-structured data. GCL reduces reliance on labeled data by learning robust representations from various augmented views. However,…

Machine Learning · Computer Science 2025-02-20 Ruyue Liu , Rong Yin , Yong Liu , Xiaoshuai Hao , Haichao Shi , Can Ma , Weiping Wang

Anomaly detection from graph data has drawn much attention due to its practical significance in many critical applications including cybersecurity, finance, and social networks. Existing data mining and machine learning methods are either…

Machine Learning · Computer Science 2022-01-25 Yu Zheng , Ming Jin , Yixin Liu , Lianhua Chi , Khoa T. Phan , Yi-Ping Phoebe Chen

Semi-supervised learning methods using Generative Adversarial Networks (GANs) have shown promising empirical success recently. Most of these methods use a shared discriminator/classifier which discriminates real examples from fake while…

Machine Learning · Computer Science 2018-06-13 Abhishek Kumar , Prasanna Sattigeri , P. Thomas Fletcher

Continual learning is crucial for applying machine learning in challenging, dynamic, and often resource-constrained environments. However, catastrophic forgetting - overwriting previously learned knowledge when new information is acquired -…

Machine Learning · Computer Science 2025-05-30 Filip Szatkowski , Yaoyue Zheng , Fei Yang , Bartłomiej Twardowski , Tomasz Trzciński , Joost van de Weijer

While contrastive learning is proven to be an effective training strategy in computer vision, Natural Language Processing (NLP) is only recently adopting it as a self-supervised alternative to Masked Language Modeling (MLM) for improving…

Computation and Language · Computer Science 2021-09-16 Hooman Sedghamiz , Shivam Raval , Enrico Santus , Tuka Alhanai , Mohammad Ghassemi

We propose GAN-Supervised Learning, a framework for learning discriminative models and their GAN-generated training data jointly end-to-end. We apply our framework to the dense visual alignment problem. Inspired by the classic Congealing…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 William Peebles , Jun-Yan Zhu , Richard Zhang , Antonio Torralba , Alexei A. Efros , Eli Shechtman

Self-supervised contrastive representation learning offers the advantage of learning meaningful visual representations from unlabeled medical datasets for transfer learning. However, applying current contrastive learning approaches to…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Zeyu Fu , Jianbo Jiao , Robail Yasrab , Lior Drukker , Aris T. Papageorghiou , J. Alison Noble

Contrastive learning has emerged as a pivotal framework for representation learning, underpinning advances in both unimodal and bimodal applications like SimCLR and CLIP. To address fundamental limitations like large batch size dependency…

Machine Learning · Computer Science 2024-12-12 Ajay Jagannath , Aayush Upadhyay , Anant Mehta

Recent text-to-image generative models, e.g., Stable Diffusion V3 and Flux, have achieved notable progress. However, these models are strongly restricted to their limited knowledge, a.k.a., their own fixed parameters, that are trained with…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Yuanhuiyi Lyu , Xu Zheng , Lutao Jiang , Yibo Yan , Xin Zou , Huiyu Zhou , Linfeng Zhang , Xuming Hu

Recent advances in supervised deep learning methods are enabling remote measurements of photoplethysmography-based physiological signals using facial videos. The performance of these supervised methods, however, are dependent on the…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Hao Wang , Euijoon Ahn , Jinman Kim

Self-supervised contrastive representation learning has proved incredibly successful in the vision and natural language domains, enabling state-of-the-art performance with orders of magnitude less labeled data. However, such methods are…

Machine Learning · Computer Science 2022-03-17 Dara Bahri , Heinrich Jiang , Yi Tay , Donald Metzler

Deep neural networks suffer from over-fitting and catastrophic forgetting when trained with small data. One natural remedy for this problem is data augmentation, which has been recently shown to be effective. However, previous works either…

Machine Learning · Computer Science 2018-12-14 Hang Gao , Zheng Shou , Alireza Zareian , Hanwang Zhang , Shih-Fu Chang

Unsupervised embedding learning aims to extract good representation from data without the need for any manual labels, which has been a critical challenge in many supervised learning tasks. This paper proposes a new unsupervised embedding…

Machine Learning · Computer Science 2020-02-28 Sungwon Han , Yizhan Xu , Sungwon Park , Meeyoung Cha , Cheng-Te Li

Appearance-based gaze estimation has shown great promise in many applications by using a single general-purpose camera as the input device. However, its success is highly depending on the availability of large-scale well-annotated gaze…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Lingyu Du , Xucong Zhang , Guohao Lan

Asymmetric appearance between positive pair effectively reduces the risk of representation degradation in contrastive learning. However, there are still a mass of appearance similarities between positive pair constructed by the existing…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Chengchao Shen , Jianzhong Chen , Shu Wang , Hulin Kuang , Jin Liu , Jianxin Wang