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Active learning (AL) aims to minimize labeling efforts for data-demanding deep neural networks (DNNs) by selecting the most representative data points for annotation. However, currently used methods are ill-equipped to deal with biased…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Denis Gudovskiy , Alec Hodgkinson , Takuya Yamaguchi , Sotaro Tsukizawa

Semantic segmentation requires pixel-level annotation, which is time-consuming. Active Learning (AL) is a promising method for reducing data annotation costs. Due to the gap between aerial and natural images, the previous AL methods are not…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Lianlei Shan , Weiqiang Wang , Ke Lv , Bin Luo

Medical image segmentation is a critical task in medical image analysis. In recent years, deep learning based approaches have shown exceptional performance when trained on a fully-annotated dataset. However, data annotation is often a…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Han Liu , Hao Li , Xing Yao , Yubo Fan , Dewei Hu , Benoit Dawant , Vishwesh Nath , Zhoubing Xu , Ipek Oguz

The Deep Learning revolution has enabled groundbreaking achievements in recent years. From breast cancer detection to protein folding, deep learning algorithms have been at the core of very important advancements. However, these modern…

Computer Vision and Pattern Recognition · Computer Science 2024-03-01 Bonaventure F. P. Dossou

Active Learning (AL) is a user-interactive approach aimed at reducing annotation costs by selecting the most crucial examples to label. Although AL has been extensively studied for image classification tasks, the specific scenario of…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Leah Bar , Boaz Lerner , Nir Darshan , Rami Ben-Ari

We propose ViewAL, a novel active learning strategy for semantic segmentation that exploits viewpoint consistency in multi-view datasets. Our core idea is that inconsistencies in model predictions across viewpoints provide a very reliable…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Yawar Siddiqui , Julien Valentin , Matthias Nießner

Active learning (AL) has emerged as a crucial strategy for reducing the prohibitive costs associated with medical image segmentation. However, standard uncertainty-based AL methods typically focus on maximizing performance metrics, ignoring…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Ghazal Danaee , Mélanie Gaillochet , Christian Desrosiers , Herve Lombaert , Sylvain Bouix

The objective of active learning (AL) is to train classification models with less number of labeled instances by selecting only the most informative instances for labeling. The AL algorithms designed for other data types such as images and…

Machine Learning · Statistics 2020-07-23 Kaushalya Madhawa , Tsuyoshi Murata

We introduce the first active learning (AL) model for high-accuracy instance segmentation of moveable parts from RGB images of real indoor scenes. Specifically, our goal is to obtain fully validated segmentation results by humans while…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Ruiqi Wang , Akshay Gadi Patil , Fenggen Yu , Hao Zhang

Training robust deep learning (DL) systems for medical image classification or segmentation is challenging due to limited images covering different disease types and severity. We propose an active learning (AL) framework to select most…

Computer Vision and Pattern Recognition · Computer Science 2019-10-23 Dwarikanath Mahapatra , Behzad Bozorgtabar , Jean-Philippe Thiran , Mauricio Reyes

Federated learning facilitates the collaborative learning of a global model across multiple distributed medical institutions without centralizing data. Nevertheless, the expensive cost of annotation on local clients remains an obstacle to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Jiayi Chen , Benteng Ma , Hengfei Cui , Yong Xia

Training deep learning models on medical datasets that perform well for all classes is a challenging task. It is often the case that a suboptimal performance is obtained on some classes due to the natural class imbalance issue that comes…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Suraj Kothawade , Atharv Savarkar , Venkat Iyer , Lakshman Tamil , Ganesh Ramakrishnan , Rishabh Iyer

Active learning aims to improve the performance of task model by selecting the most informative samples with a limited budget. Unlike most recent works that focused on applying active learning for image classification, we propose an…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Weiping Yu , Sijie Zhu , Taojiannan Yang , Chen Chen

Active learning (AL) is a principled strategy to reduce annotation cost in data-hungry deep learning. However, existing AL algorithms focus almost exclusively on unimodal data, overlooking the substantial annotation burden in multimodal…

Machine Learning · Computer Science 2026-04-24 Jiancheng Zhang , Yinglun Zhu

Active learning aims to identify the most informative data from an unlabeled data pool that enables a model to reach the desired accuracy rapidly. This benefits especially deep neural networks which generally require a huge number of…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Jihyo Kim , Jeonghyeon Kim , Sangheum Hwang

Deep neural networks have reached high accuracy on object detection but their success hinges on large amounts of labeled data. To reduce the labels dependency, various active learning strategies have been proposed, typically based on the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Ismail Elezi , Zhiding Yu , Anima Anandkumar , Laura Leal-Taixe , Jose M. Alvarez

Federated learning (FL) has been intensively investigated in terms of communication efficiency, privacy, and fairness. However, efficient annotation, which is a pain point in real-world FL applications, is less studied. In this project, we…

Machine Learning · Computer Science 2024-03-19 Jin-Hyun Ahn , Kyungsang Kim , Jeongwan Koh , Quanzheng Li

As deep learning continues to evolve, the need for data efficiency becomes increasingly important. Considering labeling large datasets is both time-consuming and expensive, active learning (AL) provides a promising solution to this…

Machine Learning · Computer Science 2025-05-21 Yifeng Wang , Xueying Zhan , Siyu Huang

Online Active Learning (OAL) aims to manage unlabeled datastream by selectively querying the label of data. OAL is applicable to many real-world problems, such as anomaly detection in health-care and finance. In these problems, there are…

Machine Learning · Computer Science 2019-11-19 Yifan Zhang , Peilin Zhao , Shuaicheng Niu , Qingyao Wu , Jiezhang Cao , Junzhou Huang , Mingkui Tan

The laborious process of labeling data often bottlenecks projects that aim to leverage the power of supervised machine learning. Active Learning (AL) has been established as a technique to ameliorate this condition through an iterative…

Machine Learning · Computer Science 2022-03-18 Trent J. Bradberry , Christopher H. Hase , LeAnna Kent , Joel A. Góngora