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Semi-supervised learning (SSL) has garnered significant attention due to its ability to leverage limited labeled data and a large amount of unlabeled data to improve model generalization performance. Recent approaches achieve impressive…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Bo Cheng , Jueqing Lu , Yuan Tian , Haifeng Zhao , Yi Chang , Lan Du

Semi-supervised learning (SSL) has been widely explored in recent years, and it is an effective way of leveraging unlabeled data to reduce the reliance on labeled data. In this work, we adjust neural processes (NPs) to the semi-supervised…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Jianfeng Wang , Xiaolin Hu , Thomas Lukasiewicz

Semi-supervised learning provides an expressive framework for exploiting unlabeled data when labels are insufficient. Previous semi-supervised learning methods typically match model predictions of different data-augmented views in a…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Cong Wang , Xiaofeng Cao , Lanzhe Guo2 , Zenglin Shi

This paper introduces SelfMatch, a semi-supervised learning method that combines the power of contrastive self-supervised learning and consistency regularization. SelfMatch consists of two stages: (1) self-supervised pre-training based on…

Machine Learning · Computer Science 2021-01-19 Byoungjip Kim , Jinho Choo , Yeong-Dae Kwon , Seongho Joe , Seungjai Min , Youngjune Gwon

Semi-supervised learning (SSL) offers a robust framework for harnessing the potential of unannotated data. Traditionally, SSL mandates that all classes possess labeled instances. However, the emergence of open-world SSL (OwSSL) introduces a…

Machine Learning · Computer Science 2024-11-05 Shengjie Niu , Lifan Lin , Jian Huang , Chao Wang

Recent state-of-the-art method FlexMatch firstly demonstrated that correctly estimating learning status is crucial for semi-supervised learning (SSL). However, the estimation method proposed by FlexMatch does not take into account…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Zhimin Chen , Longlong Jing , Liang Yang , Yingwei Li , Bing Li

Semi-supervised learning (SSL) commonly exhibits confirmation bias, where models disproportionately favor certain classes, leading to errors in predicted pseudo labels that accumulate under a self-training paradigm. Unlike supervised…

Machine Learning · Computer Science 2024-09-30 Yu Wang , Yuxuan Yin , Peng Li

This paper tackles the problem of semi-supervised learning when the set of labeled samples is limited to a small number of images per class, typically less than 10, problem that we refer to as barely-supervised learning. We analyze in depth…

Computer Vision and Pattern Recognition · Computer Science 2021-12-23 Thomas Lucas , Philippe Weinzaepfel , Gregory Rogez

In recent years, great progress has been made to incorporate unlabeled data to overcome the inefficiently supervised problem via semi-supervised learning (SSL). Most state-of-the-art models are based on the idea of pursuing consistent model…

Machine Learning · Computer Science 2022-09-27 Yangbangyan Jiang , Xiaodan Li , Yuefeng Chen , Yuan He , Qianqian Xu , Zhiyong Yang , Xiaochun Cao , Qingming Huang

Semi-supervised learning (SSL) has witnessed great progress with various improvements in the self-training framework with pseudo labeling. The main challenge is how to distinguish high-quality pseudo labels against the confirmation bias.…

Machine Learning · Computer Science 2024-02-21 Siyuan Li , Weiyang Jin , Zedong Wang , Fang Wu , Zicheng Liu , Cheng Tan , Stan Z. Li

Recent state-of-the-art methods in semi-supervised learning (SSL) combine consistency regularization with confidence-based pseudo-labeling. To obtain high-quality pseudo-labels, a high confidence threshold is typically adopted. However, it…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Zhuoran Yu , Yin Li , Yong Jae Lee

Semi-supervised learning (SSL) has been widely explored in recent years, and it is an effective way of leveraging unlabeled data to reduce the reliance on labeled data. In this work, we adjust neural processes (NPs) to the semi-supervised…

Machine Learning · Computer Science 2022-07-05 Jianfeng Wang , Thomas Lukasiewicz , Daniela Massiceti , Xiaolin Hu , Vladimir Pavlovic , Alexandros Neophytou

Semi-supervised learning (SSL) addresses the lack of labeled data by exploiting large unlabeled data through pseudolabeling. However, in the extremely low-label regime, pseudo labels could be incorrect, a.k.a. the confirmation bias, and the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-09 Xun Xu , Jingyi Liao , Lile Cai , Manh Cuong Nguyen , Kangkang Lu , Wanyue Zhang , Yasin Yazici , Chuan Sheng Foo

Semi-supervised learning (SSL) algorithms struggle to perform well when exposed to imbalanced training data. In this scenario, the generated pseudo-labels can exhibit a bias towards the majority class, and models that employ these…

Machine Learning · Computer Science 2024-09-18 Zeju Li , Ying-Qiu Zheng , Chen Chen , Saad Jbabdi

Semi-supervised learning (SSL) is a practical challenge in computer vision. Pseudo-label (PL) methods, e.g., FixMatch and FreeMatch, obtain the State Of The Art (SOTA) performances in SSL. These approaches employ a threshold-to-pseudo-label…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Jiaqi Wu , Junbiao Pang , Baochang Zhang , Qingming Huang

The core issue in semi-supervised learning (SSL) lies in how to effectively leverage unlabeled data, whereas most existing methods tend to put a great emphasis on the utilization of high-confidence samples yet seldom fully explore the usage…

Computer Vision and Pattern Recognition · Computer Science 2022-12-22 Yue Duan , Zhen Zhao , Lei Qi , Lei Wang , Luping Zhou , Yinghuan Shi , Yang Gao

Learning with few labeled data has been a longstanding problem in the computer vision and machine learning research community. In this paper, we introduced a new semi-supervised learning framework, SimMatch, which simultaneously considers…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Mingkai Zheng , Shan You , Lang Huang , Fei Wang , Chen Qian , Chang Xu

Semi-supervised learning (SSL) is an effective means to leverage unlabeled data to improve a model's performance. Typical SSL methods like FixMatch assume that labeled and unlabeled data share the same label space. However, in practice,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Kuniaki Saito , Donghyun Kim , Kate Saenko

Semi-supervised learning has been an effective paradigm for leveraging unlabeled data to reduce the reliance on labeled data. We propose CoMatch, a new semi-supervised learning method that unifies dominant approaches and addresses their…

Machine Learning · Computer Science 2021-03-04 Junnan Li , Caiming Xiong , Steven Hoi

Semi-Supervised Learning (SSL) has advanced classification tasks by inputting both labeled and unlabeled data to train a model jointly. However, existing SSL methods only consider the unlabeled data whose predictions are beyond a fixed…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Zechen Liang , Yuan-Gen Wang , Wei Lu , Xiaochun Cao