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Semantic segmentation is crucial for various biomedical applications, yet its reliance on large annotated datasets presents a bottleneck due to the high cost and specialized expertise required for manual labeling. Active Learning (AL) aims…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Carsten T. Lüth , Jeremias Traub , Kim-Celine Kahl , Till J. Bungert , Lukas Klein , Lars Krämer , Paul F. Jaeger , Fabian Isensee , Klaus Maier-Hein

Active learning (AL) is a label-efficient machine learning paradigm that focuses on selectively annotating high-value instances to maximize learning efficiency. Its effectiveness can be further enhanced by incorporating weak supervision,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Shinnosuke Matsuo , Riku Togashi , Ryoma Bise , Seiichi Uchida , Masahiro Nomura

Semantic segmentation of satellite imagery plays a vital role in land cover mapping and environmental monitoring. However, annotating large-scale, high-resolution satellite datasets is costly and time consuming, especially when covering…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Gadi Hemanth Kumar , Athira Nambiar , Pankaj Bodani

Federated Learning (FL) enables multiple institutes to train models collaboratively without sharing private data. Current FL research focuses on communication efficiency, privacy protection, and personalization and assumes that the data of…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Zhipeng Deng , Yuqiao Yang , Kenji Suzuki

Deep learning methods typically depend on the availability of labeled data, which is expensive and time-consuming to obtain. Active learning addresses such effort by prioritizing which samples are best to annotate in order to maximize the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Mélanie Gaillochet , Christian Desrosiers , Hervé Lombaert

The performance of learning-based algorithms improves with the amount of labelled data used for training. Yet, manually annotating data is particularly difficult for medical image segmentation tasks because of the limited expert…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Mélanie Gaillochet , Christian Desrosiers , Hervé Lombaert

This paper introduces an active learning (AL) framework for anomalous sound detection (ASD) in machine condition monitoring system. Typically, ASD models are trained solely on normal samples due to the scarcity of anomalous data, leading to…

Sound · Computer Science 2024-08-13 Tuan Vu Ho , Kota Dohi , Yohei Kawaguchi

Machine learning in medical imaging during clinical routine is impaired by changes in scanner protocols, hardware, or policies resulting in a heterogeneous set of acquisition settings. When training a deep learning model on an initial…

Computer Vision and Pattern Recognition · Computer Science 2022-03-16 Matthias Perkonigg , Johannes Hofmanninger , Christian Herold , Helmut Prosch , Georg Langs

This paper aims to develop a novel cost-effective framework for face identification, which progressively maintains a batch of classifiers with the increasing face images of different individuals. By naturally combining two recently rising…

Computer Vision and Pattern Recognition · Computer Science 2017-07-04 Liang Lin , Keze Wang , Deyu Meng , Wangmeng Zuo , Lei Zhang

The process of annotating histological gigapixel-sized whole slide images (WSIs) at the pixel level for the purpose of training a supervised segmentation model is time-consuming. Region-based active learning (AL) involves training the model…

Computer Vision and Pattern Recognition · Computer Science 2023-07-17 Jingna Qiu , Frauke Wilm , Mathias Öttl , Maja Schlereth , Chang Liu , Tobias Heimann , Marc Aubreville , Katharina Breininger

Temporal modelling is the key for efficient video action recognition. While understanding temporal information can improve recognition accuracy for dynamic actions, removing temporal redundancy and reusing past features can significantly…

Computer Vision and Pattern Recognition · Computer Science 2021-02-12 Yue Meng , Rameswar Panda , Chung-Ching Lin , Prasanna Sattigeri , Leonid Karlinsky , Kate Saenko , Aude Oliva , Rogerio Feris

Active learning (AL) has the potential to drastically reduce annotation costs in 3D biomedical image segmentation, where expert labeling of volumetric data is both time-consuming and expensive. Yet, existing AL methods are unable to…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Carsten T. Lüth , Jeremias Traub , Kim-Celine Kahl , Till J. Bungert , Lukas Klein , Lars Krämer , Paul F. Jäger , Klaus Maier-Hein , Fabian Isensee

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

One of the biggest challenges that complicates applied supervised machine learning is the need for huge amounts of labeled data. Active Learning (AL) is a well-known standard method for efficiently obtaining labeled data by first labeling…

Machine Learning · Computer Science 2021-08-18 Julius Gonsior , Maik Thiele , Wolfgang Lehner

Training machine learning models for classification tasks often requires labeling numerous samples, which is costly and time-consuming, especially in time series analysis. This research investigates Active Learning (AL) strategies to reduce…

Machine Learning · Computer Science 2024-05-21 Shemonto Das

Cold-Start Active Learning (CSAL) aims to select informative samples for annotation without prior knowledge, which is important for improving annotation efficiency and model performance under a limited annotation budget in medical image…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Ning Zhu , Xiaochuan Ma , Shaoting Zhang , Guotai Wang

Pose estimation of the human body and hands is a fundamental problem in computer vision, and learning-based solutions require a large amount of annotated data. In this work, we improve the efficiency of the data annotation process for 3D…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Qi Feng , Kun He , He Wen , Cem Keskin , Yuting Ye

Active learning (AL) has shown promise for being a particularly data-efficient machine learning approach. Yet, its performance depends on the application and it is not clear when AL practitioners can expect computational savings. Here, we…

Machine Learning · Computer Science 2024-08-22 Kunal Ghosh , Milica Todorović , Aki Vehtari , Patrick Rinke

Deep learning models have demonstrated great potential in medical 3D imaging, but their development is limited by the expensive, large volume of annotated data required. Active learning (AL) addresses this by training a model on a subset of…

Active learning (AL) reduces human annotation costs for machine learning systems by strategically selecting the most informative unlabeled data for annotation, but performing it individually may still be insufficient due to restricted data…

Machine Learning · Computer Science 2025-04-25 Jun Zhang , Jue Wang , Huan Li , Zhongle Xie , Ke Chen , Lidan Shou