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Semi-supervised learning (SSL) has attracted enormous attention due to its vast potential of mitigating the dependence on large labeled datasets. The latest methods (e.g., FixMatch) use a combination of consistency regularization and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Yuhao Chen , Xin Tan , Borui Zhao , Zhaowei Chen , Renjie Song , Jiajun Liang , Xuequan Lu

Deep learning models achieve strong performance for radiology image classification, but their practical application is bottlenecked by the need for large labeled training datasets. Semi-supervised learning (SSL) approaches leverage small…

Computer Vision and Pattern Recognition · Computer Science 2021-08-11 Balagopal Unnikrishnan , Cuong Nguyen , Shafa Balaram , Chao Li , Chuan Sheng Foo , Pavitra Krishnaswamy

The scarcity of labeled data is a critical obstacle to deep learning. Semi-supervised learning (SSL) provides a promising way to leverage unlabeled data by pseudo labels. However, when the size of labeled data is very small (say a few…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Yi Xu , Jiandong Ding , Lu Zhang , Shuigeng Zhou

The volume-wise labeling of 3D medical images is expertise-demanded and time-consuming; hence semi-supervised learning (SSL) is highly desirable for training with limited labeled data. Imbalanced class distribution is a severe problem that…

Image and Video Processing · Electrical Eng. & Systems 2023-07-25 Haonan Wang , Xiaomeng Li

Semantic understanding of 3D point cloud relies on learning models with massively annotated data, which, in many cases, are expensive or difficult to collect. This has led to an emerging research interest in semi-supervised learning (SSL)…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Xian Shi , Xun Xu , Wanyue Zhang , Xiatian Zhu , Chuan Sheng Foo , Kui Jia

We consider the unsupervised learning problem of assigning labels to unlabeled data. A naive approach is to use clustering methods, but this works well only when data is properly clustered and each cluster corresponds to an underlying…

Machine Learning · Computer Science 2013-05-02 Marthinus Christoffel du Plessis , Masashi Sugiyama

The recent research in semi-supervised learning (SSL) is mostly dominated by consistency regularization based methods which achieve strong performance. However, they heavily rely on domain-specific data augmentations, which are not easy to…

Machine Learning · Computer Science 2021-04-20 Mamshad Nayeem Rizve , Kevin Duarte , Yogesh S Rawat , Mubarak Shah

Semi-supervised learning (SSL) has recently proven to be an effective paradigm for leveraging a huge amount of unlabeled data while mitigating the reliance on large labeled data. Conventional methods focused on extracting a pseudo label…

Machine Learning · Computer Science 2022-01-26 Jiwon Kim , Kwangrok Ryoo , Gyuseong Lee , Seokju Cho , Junyoung Seo , Daehwan Kim , Hansang Cho , Seungryong Kim

Semi-supervised learning (SSL) is an active area of research which aims to utilize unlabelled data in order to improve the accuracy of speech recognition systems. The current study proposes a methodology for integration of two key ideas: 1)…

Computation and Language · Computer Science 2020-08-11 Prakhar Swarup , Debmalya Chakrabarty , Ashtosh Sapru , Hitesh Tulsiani , Harish Arsikere , Sri Garimella

Consistently high data quality is essential for the development of novel loss functions and architectures in the field of deep learning. The existence of such data and labels is usually presumed, while acquiring high-quality datasets is…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Lars Schmarje , Monty Santarossa , Simon-Martin Schröder , Claudius Zelenka , Rainer Kiko , Jenny Stracke , Nina Volkmann , Reinhard Koch

Two problems often plague medical imaging analysis: 1) Non-availability of large quantities of labeled training data, and 2) Dealing with imbalanced data, i.e., abundant data are available for frequent classes, whereas data are highly…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Yash Kumar Sharma , Charan Ramtej Kodi , Vineet Padmanabhan

Class imbalance is an intrinsic characteristic of multi-label data. Most of the labels in multi-label data sets are associated with a small number of training examples, much smaller compared to the size of the data set. Class imbalance…

Machine Learning · Computer Science 2018-11-07 Bin Liu , Grigorios Tsoumakas

Compared to supervised learning, semi-supervised learning reduces the dependence of deep learning on a large number of labeled samples. In this work, we use a small number of labeled samples and perform data augmentation on unlabeled…

Machine Learning · Computer Science 2020-01-14 Qiuyu Zhu , Tiantian Li

Current semi-supervised object detection (SSOD) algorithms typically assume class balanced datasets (PASCAL VOC etc.) or slightly class imbalanced datasets (MS-COCO, etc). This assumption can be easily violated since real world datasets can…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Jiaming Li , Xiangru Lin , Wei Zhang , Xiao Tan , Yingying Li , Junyu Han , Errui Ding , Jingdong Wang , Guanbin Li

Spectral clustering (SC) and graph-based semi-supervised learning (SSL) algorithms are sensitive to how graphs are constructed from data. In particular if the data has proximal and unbalanced clusters these algorithms can lead to poor…

Machine Learning · Statistics 2013-02-22 Jing Qian , Venkatesh Saligrama

Semi-supervised learning is a powerful technique for leveraging unlabeled data to improve machine learning models, but it can be affected by the presence of ``informative'' labels, which occur when some classes are more likely to be labeled…

Machine Learning · Statistics 2023-02-16 Aude Sportisse , Hugo Schmutz , Olivier Humbert , Charles Bouveyron , Pierre-Alexandre Mattei

Long-Tailed Semi-Supervised Learning (LTSSL) aims to learn from class-imbalanced data where only a few samples are annotated. Existing solutions typically require substantial cost to solve complex optimization problems, or class-balanced…

Machine Learning · Computer Science 2022-05-27 Tong Wei , Qian-Yu Liu , Jiang-Xin Shi , Wei-Wei Tu , Lan-Zhe Guo

Recent work has shown that using unlabeled data in semi-supervised learning is not always beneficial and can even hurt generalization, especially when there is a class mismatch between the unlabeled and labeled examples. We investigate this…

Machine Learning · Computer Science 2019-10-07 Michał Zając , Konrad Zolna , Stanisław Jastrzębski

Deep neural network-based classifiers trained with the categorical cross-entropy (CCE) loss are sensitive to label noise in the training data. One common type of method that can mitigate the impact of label noise can be viewed as supervised…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Aritra Ghosh , Andrew Lan

Few-Shot Class-Incremental Learning has shown remarkable efficacy in efficient learning new concepts with limited annotations. Nevertheless, the heuristic few-shot annotations may not always cover the most informative samples, which largely…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Zitong Huang , Ze Chen , Yuanze Li , Bowen Dong , Erjin Zhou , Yong Liu , Rick Siow Mong Goh , Chun-Mei Feng , Wangmeng Zuo
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