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While few-shot learning (FSL) aims for rapid generalization to new concepts with little supervision, self-supervised learning (SSL) constructs supervisory signals directly computed from unlabeled data. Exploiting the complementarity of…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Zhengyu Chen , Jixie Ge , Heshen Zhan , Siteng Huang , Donglin Wang

Over the last decade, supervised deep learning on manually annotated big data has been progressing significantly on computer vision tasks. But the application of deep learning in medical image analysis was limited by the scarcity of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Wei-Chien Wang , Euijoon Ahn , Dagan Feng , Jinman Kim

Unsupervised learning methods have recently shown their competitiveness against supervised training. Typically, these methods use a single objective to train the entire network. But one distinct advantage of unsupervised over supervised…

Computer Vision and Pattern Recognition · Computer Science 2021-06-14 Zefan Li , Chenxi Liu , Alan Yuille , Bingbing Ni , Wenjun Zhang , Wen Gao

We present a self-supervised learning (SSL) method suitable for semi-global tasks such as object detection and semantic segmentation. We enforce local consistency between self-learned features, representing corresponding image locations of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Ashraful Islam , Ben Lundell , Harpreet Sawhney , Sudipta Sinha , Peter Morales , Richard J. Radke

Ensuring the realism of computer-generated synthetic images is crucial to deep neural network (DNN) training. Due to different semantic distributions between synthetic and real-world captured datasets, there exists semantic mismatch between…

Computer Vision and Pattern Recognition · Computer Science 2023-04-27 Ganning Zhao , Tingwei Shen , Suya You , C. -C. Jay Kuo

We introduce a simple neural encoder architecture that can be trained using an unsupervised contrastive learning objective which gets its positive samples from data-augmented k-Nearest Neighbors search. We show that when built on top of…

Artificial Intelligence · Computer Science 2023-10-24 Robin Algayres , Adel Nabli , Benoit Sagot , Emmanuel Dupoux

Sequential recommendation (SR) aims to model user preferences by capturing behavior patterns from their item historical interaction data. Most existing methods model user preference in the time domain, omitting the fact that users'…

Information Retrieval · Computer Science 2023-05-09 Xinyu Du , Huanhuan Yuan , Pengpeng Zhao , Junhua Fang , Guanfeng Liu , Yanchi Liu , Victor S. Sheng , Xiaofang Zhou

Self-Supervised Learning (SSL) enables us to pre-train foundation models without costly labeled data. Among SSL methods, Contrastive Learning (CL) methods are better at obtaining accurate semantic representations in noise interference.…

Image and Video Processing · Electrical Eng. & Systems 2026-02-06 Hengtong Shen , Haiyan Gu , Haitao Li , Yi Yang , Agen Qiu

From human physiology to environmental evolution, important processes in nature often exhibit meaningful and strong periodic or quasi-periodic changes. Due to their inherent label scarcity, learning useful representations for periodic tasks…

Machine Learning · Computer Science 2023-02-22 Yuzhe Yang , Xin Liu , Jiang Wu , Silviu Borac , Dina Katabi , Ming-Zher Poh , Daniel McDuff

Human skeleton point clouds are commonly used to automatically classify and predict the behaviour of others. In this paper, we use a contrastive self-supervised learning method, SimCLR, to learn representations that capture the semantics of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Nico Lingg , Miguel Sarabia , Luca Zappella , Barry-John Theobald

Self-supervised learning is an empirically successful approach to unsupervised learning based on creating artificial supervised learning problems. A popular self-supervised approach to representation learning is contrastive learning, which…

Machine Learning · Computer Science 2021-04-16 Christopher Tosh , Akshay Krishnamurthy , Daniel Hsu

Modern recommender systems often deal with a variety of user interactions, e.g., click, forward, purchase, etc., which requires the underlying recommender engines to fully understand and leverage multi-behavior data from users. Despite…

Information Retrieval · Computer Science 2023-05-30 Jingcao Xu , Chaokun Wang , Cheng Wu , Yang Song , Kai Zheng , Xiaowei Wang , Changping Wang , Guorui Zhou , Kun Gai

Self-supervised representation learning~(SSRL) has advanced considerably by exploiting the transformation invariance assumption under artificially designed data augmentations. While augmentation-based SSRL algorithms push the boundaries of…

Machine Learning · Computer Science 2024-03-22 Yi Sui , Tongzi Wu , Jesse C. Cresswell , Ga Wu , George Stein , Xiao Shi Huang , Xiaochen Zhang , Maksims Volkovs

Contrastive Learning (CL) performances as a rising approach to address the challenge of sparse and noisy recommendation data. Although having achieved promising results, most existing CL methods only perform either hand-crafted data or…

Information Retrieval · Computer Science 2023-11-22 Xiuyuan Qin , Huanhuan Yuan , Pengpeng Zhao , Junhua Fang , Fuzhen Zhuang , Guanfeng Liu , Victor Sheng

Self-supervised learning (SSL) has potential for effective representation learning in medical imaging, but the choice of data augmentation is critical and domain-specific. It remains uncertain if general augmentation policies suit surgical…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Yuning Zhou , Henry Badgery , Matthew Read , James Bailey , Catherine E. Davey

Self-supervised learning (SSL) has grown in interest within the speech processing community, since it produces representations that are useful for many downstream tasks. SSL uses global and contextual methods to produce robust…

Audio and Speech Processing · Electrical Eng. & Systems 2024-11-08 Subrina Sultana , Donald S. Williamson

This paper presents SimCLR: a simple framework for contrastive learning of visual representations. We simplify recently proposed contrastive self-supervised learning algorithms without requiring specialized architectures or a memory bank.…

Machine Learning · Computer Science 2020-07-02 Ting Chen , Simon Kornblith , Mohammad Norouzi , Geoffrey Hinton

3D deep learning is a growing field of interest due to the vast amount of information stored in 3D formats. Triangular meshes are an efficient representation for irregular, non-uniform 3D objects. However, meshes are often challenging to…

Computer Vision and Pattern Recognition · Computer Science 2022-12-23 Ayaan Haque , Hankyu Moon , Heng Hao , Sima Didari , Jae Oh Woo , Patrick Bangert

Modeling user's long-term and short-term interests is crucial for accurate recommendation. However, since there is no manually annotated label for user interests, existing approaches always follow the paradigm of entangling these two…

Information Retrieval · Computer Science 2022-03-01 Yu Zheng , Chen Gao , Jianxin Chang , Yanan Niu , Yang Song , Depeng Jin , Yong Li

Deep supervised learning algorithms typically require a large volume of labeled data to achieve satisfactory performance. However, the process of collecting and labeling such data can be expensive and time-consuming. Self-supervised…

Machine Learning · Computer Science 2024-07-16 Jie Gui , Tuo Chen , Jing Zhang , Qiong Cao , Zhenan Sun , Hao Luo , Dacheng Tao