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Semi-supervised learning (SSL) provides a powerful framework for leveraging unlabeled data when labels are limited or expensive to obtain. SSL algorithms based on deep neural networks have recently proven successful on standard benchmark…

Machine Learning · Computer Science 2019-05-28 Jiaxing Wang , Yin Zheng , Xiaoshuang Chen , Junzhou Huang , Jian Cheng

Recent work on curvilinear structure segmentation has mostly focused on backbone network design and loss engineering. The challenge of collecting labelled data, an expensive and labor intensive process, has been overlooked. While labelled…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Xun Xu , Manh Cuong Nguyen , Yasin Yazici , Kangkang Lu , Hlaing Min , Chuan-Sheng Foo

While 3D instance segmentation (3DIS) has advanced significantly, most existing methods assume that all object classes are known in advance and uniformly distributed. However, this assumption is unrealistic in dynamic, real-world…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Vishal Thengane , Jean Lahoud , Hisham Cholakkal , Rao Muhammad Anwer , Lu Yin , Xiatian Zhu , Salman Khan

Semi-supervised semantic segmentation (SSS) is an important task that utilizes both labeled and unlabeled data to reduce expenses on labeling training examples. However, the effectiveness of SSS algorithms is limited by the difficulty of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Zhibo Tain , Xiaolin Zhang , Peng Zhang , Kun Zhan

The ability to generate online maps using only onboard sensory information is crucial for enabling autonomous driving beyond well-mapped areas. Training models for this task -- predicting lane markers, road edges, and pedestrian crossings…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Adam Lilja , Erik Wallin , Junsheng Fu , Lars Hammarstrand

Semi-supervised learning (SSL) can improve model performance by leveraging unlabeled images, which can be collected from public image sources with low costs. In recent years, synthetic images have become increasingly common in public image…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Zerun Wang , Jiafeng Mao , Liuyu Xiang , Toshihiko Yamasaki

We propose UnMixMatch, a semi-supervised learning framework which can learn effective representations from unconstrained unlabelled data in order to scale up performance. Most existing semi-supervised methods rely on the assumption that…

Machine Learning · Computer Science 2024-01-17 Shuvendu Roy , Ali Etemad

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

Given a small set of labeled data and a large set of unlabeled data, semi-supervised learning (SSL) attempts to leverage the location of the unlabeled datapoints in order to create a better classifier than could be obtained from supervised…

Machine Learning · Computer Science 2022-05-25 Michael C. Burkhart , Kyle Shan

Ethical bias in machine learning models has become a matter of concern in the software engineering community. Most of the prior software engineering works concentrated on finding ethical bias in models rather than fixing it. After finding…

Software Engineering · Computer Science 2022-03-23 Joymallya Chakraborty , Suvodeep Majumder , Huy Tu

In recent years, semi-supervised learning (SSL) has gained significant attention due to its ability to leverage both labeled and unlabeled data to improve model performance, especially when labeled data is scarce. However, most current SSL…

Machine Learning · Computer Science 2024-05-06 Marzi Heidari , Hanping Zhang , Yuhong Guo

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

Semi-supervised learning (SSL) tackles the label missing problem by enabling the effective usage of unlabeled data. While existing SSL methods focus on the traditional setting, a practical and challenging scenario called label Missing Not…

Machine Learning · Computer Science 2023-08-21 Yue Duan , Zhen Zhao , Lei Qi , Luping Zhou , Lei Wang , Yinghuan Shi

Class imbalance, which is also called long-tailed distribution, is a common problem in classification tasks based on machine learning. If it happens, the minority data will be overwhelmed by the majority, which presents quite a challenge…

Machine Learning · Computer Science 2023-03-29 Jia-Chen Zhao

Domain adaptive semantic segmentation aims to learn a model with the supervision of source domain data, and produce satisfactory dense predictions on unlabeled target domain. One popular solution to this challenging task is self-training,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Ruihuang Li , Shuai Li , Chenhang He , Yabin Zhang , Xu Jia , Lei Zhang

Semi-supervised object detection (SSOD) has made significant progress with the development of pseudo-label-based end-to-end methods. However, many of these methods face challenges due to class imbalance, which hinders the effectiveness of…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Purbayan Kar , Vishal Chudasama , Naoyuki Onoe , Pankaj Wasnik

Prior works have shown that semi-supervised learning algorithms can leverage unlabeled data to improve over the labeled sample complexity of supervised learning (SL) algorithms. However, existing theoretical analyses focus on regimes where…

Machine Learning · Computer Science 2023-12-01 Alexandru Ţifrea , Gizem Yüce , Amartya Sanyal , Fanny Yang

Federated Learning allows the training of machine learning models by using the computation and private data resources of many distributed clients. Most existing results on Federated Learning (FL) assume the clients have ground-truth labels.…

Machine Learning · Computer Science 2022-10-12 Enmao Diao , Jie Ding , Vahid Tarokh

Semi-supervised learning (SSL) alleviates the cost of data labeling process by exploiting unlabeled data and has achieved promising results. Meanwhile, with the development of large foundation models, exploiting pre-trained models becomes a…

Machine Learning · Computer Science 2025-10-28 Song-Lin Lv , Rui Zhu , Tong Wei , Yu-Feng Li , Lan-Zhe Guo

There has been increasing attention to semi-supervised learning (SSL) approaches in machine learning to forming a classifier in situations where the training data for a classifier consists of a limited number of classified observations but…

Machine Learning · Statistics 2021-11-10 Daniel Ahfock , Geoffrey J. McLachlan