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Datasets for biosignals, such as electroencephalogram (EEG) and electrocardiogram (ECG), often have noisy labels and have limited number of subjects (<100). To handle these challenges, we propose a self-supervised approach based on…

机器学习 · 计算机科学 2020-07-10 Joseph Y. Cheng , Hanlin Goh , Kaan Dogrusoz , Oncel Tuzel , Erdrin Azemi

Collecting large-scale medical datasets with fine-grained annotations is time-consuming and requires experts. For this reason, weakly supervised learning aims at optimising machine learning models using weaker forms of annotations, such as…

计算机视觉与模式识别 · 计算机科学 2021-08-27 Gabriele Valvano , Andrea Leo , Sotirios A. Tsaftaris

Semisupervised learning is a learning standard which deals with the study of how computers and natural systems such as human beings acquire knowledge in the presence of both labeled and unlabeled data. Semisupervised learning based methods…

机器学习 · 计算机科学 2014-02-20 V. Jothi Prakash , Dr. L. M. Nithya

Noisy labels are a pervasive challenge in medical image classification, where annotation errors arise from inter-observer variability and diagnostic ambiguity. Although several noise-robust learning methods have been proposed, their…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Maycon R. S. Pereira , Filipe R. Cordeiro

After a surge in popularity of supervised Deep Learning, the desire to reduce the dependence on curated, labelled data sets and to leverage the vast quantities of unlabelled data available recently triggered renewed interest in unsupervised…

机器学习 · 计算机科学 2020-09-21 Lorijn Zaadnoordijk , Tarek R. Besold , Rhodri Cusack

Scarcity of labeled data is one of the most frequent problems faced in machine learning. This is particularly true in relation extraction in text mining, where large corpora of texts exists in many application domains, while labeling of…

机器学习 · 计算机科学 2018-07-13 Linara Adilova , Sven Giesselbach , Stefan Rüping

Optical neuroimaging is a vital tool for understanding the brain structure and the connection between regions and nuclei. However, the image noise introduced in the sample preparation and the imaging system hinders the extraction of the…

图像与视频处理 · 电气工程与系统科学 2021-09-23 Tianfang Zhu , Yue Guan , Anan Li

Medical decision-making processes can be enhanced by comprehensive biomedical knowledge bases, which require fusing knowledge graphs constructed from different sources via a uniform index system. The index system often organizes biomedical…

信息检索 · 计算机科学 2023-04-13 Jiaying Lu , Jiaming Shen , Bo Xiong , Wenjing Ma , Steffen Staab , Carl Yang

Annotation scarcity has become a major obstacle for training powerful deep-learning models for medical image segmentation, restricting their deployment in clinical scenarios. To address it, semi-supervised learning by exploiting abundant…

计算机视觉与模式识别 · 计算机科学 2023-11-21 Qingjie Zeng , Yutong Xie , Zilin Lu , Mengkang Lu , Yicheng Wu , Yong Xia

Image classification systems recently made a giant leap with the advancement of deep neural networks. However, these systems require an excessive amount of labeled data to be adequately trained. Gathering a correctly annotated dataset is…

机器学习 · 计算机科学 2021-01-19 Görkem Algan , Ilkay Ulusoy

In the 21st-century information age, with the development of big data technology, effectively extracting valuable information from massive data has become a key issue. Traditional data mining methods are inadequate when faced with…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Aoran Shen , Minghao Dai , Jiacheng Hu , Yingbin Liang , Shiru Wang , Junliang Du

Weakly supervised point cloud semantic segmentation methods that require 1\% or fewer labels, hoping to realize almost the same performance as fully supervised approaches, which recently, have attracted extensive research attention. A…

计算机视觉与模式识别 · 计算机科学 2022-09-19 Tianfang Sun , Zhizhong Zhang , Xin Tan , Yanyun Qu , Yuan Xie , Lizhuang Ma

We introduce an unsupervised discriminative model for the task of retrieving experts in online document collections. We exclusively employ textual evidence and avoid explicit feature engineering by learning distributed word representations…

信息检索 · 计算机科学 2017-09-19 Christophe Van Gysel , Maarten de Rijke , Marcel Worring

Noisy labels, inevitably existing in pseudo segmentation labels generated from weak object-level annotations, severely hampers model optimization for semantic segmentation. Previous works often rely on massive hand-crafted losses and…

计算机视觉与模式识别 · 计算机科学 2024-01-23 Shenwang Jiang , Jianan Li , Ying Wang , Wenxuan Wu , Jizhou Zhang , Bo Huang , Tingfa Xu

We tackle biomedical image segmentation in the scenario of only a few labeled brain MR images. This is an important and challenging task in medical applications, where manual annotations are time-consuming. Current multi-atlas based…

计算机视觉与模式识别 · 计算机科学 2020-01-14 Hyeon Woo Lee , Mert R. Sabuncu , Adrian V. Dalca

Semi-supervised 3D medical image segmentation aims to achieve accurate segmentation using few labelled data and numerous unlabelled data. The main challenge in the design of semi-supervised learning methods consists in the effective use of…

计算机视觉与模式识别 · 计算机科学 2025-02-18 Yanyan Wang , Kechen Song , Yuyuan Liu , Shuai Ma , Yunhui Yan , Gustavo Carneiro

The label noise transition matrix, denoting the transition probabilities from clean labels to noisy labels, is crucial for designing statistically robust solutions. Existing estimators for noise transition matrices, e.g., using either…

机器学习 · 计算机科学 2022-06-22 Zhaowei Zhu , Jialu Wang , Yang Liu

Noisy labels can impair model performance, making the study of learning with noisy labels an important topic. Two conventional approaches are noise modeling and noise detection. However, these two methods are typically studied…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Siqi Wang , Chau Pham , Bryan A. Plummer

Deep learning perception models require a massive amount of labeled training data to achieve good performance. While unlabeled data is easy to acquire, the cost of labeling is prohibitive and could create a tremendous burden on companies or…

计算机视觉与模式识别 · 计算机科学 2021-11-19 Xinnan Du , William Zhang , Jose M. Alvarez

A popular approach to decrease the need for costly manual annotation of large data sets is weak supervision, which introduces problems of noisy labels, coverage and bias. Methods for overcoming these problems have either relied on…

计算与语言 · 计算机科学 2022-05-03 Andreas Stephan , Benjamin Roth