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Sparse annotation in remote sensing object detection poses significant challenges due to dense object distributions and category imbalances. Although existing Dense Pseudo-Label methods have demonstrated substantial potential in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Wei Liao , Chunyan Xu , Chenxu Wang , Zhen Cui

Class-agnostic counting (CAC) has numerous potential applications across various domains. The goal is to count objects of an arbitrary category during testing, based on only a few annotated exemplars. In this paper, we point out that the…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Jingyi Xu , Hieu Le , Dimitris Samaras

Conventional multimedia annotation/retrieval systems such as Normalized Continuous Relevance Model (NormCRM) [16] require a fully labeled training data for a good performance. Active Learning, by determining an order for labeling the…

Multimedia · Computer Science 2015-04-28 Moitreya Chatterjee , Anton Leuski

Active learning (AL) is a promising ML paradigm that has the potential to parse through large unlabeled data and help reduce annotation cost in domains where labeling data can be prohibitive. Recently proposed neural network based AL…

Machine Learning · Computer Science 2022-06-17 Prateek Munjal , Nasir Hayat , Munawar Hayat , Jamshid Sourati , Shadab Khan

3D object detection is an important task in computer vision. Most existing methods require a large number of high-quality 3D annotations, which are expensive to collect. Especially for outdoor scenes, the problem becomes more severe due to…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Hongyi Xu , Fengqi Liu , Qianyu Zhou , Jinkun Hao , Zhijie Cao , Zhengyang Feng , Lizhuang Ma

Meta-learning algorithms for active learning are emerging as a promising paradigm for learning the ``best'' active learning strategy. However, current learning-based active learning approaches still require sufficient training data so as to…

Machine Learning · Computer Science 2019-09-10 Jingyu Shao , Qing Wang , Fangbing Liu

Modern AI algorithms require labeled data. In real world, majority of data are unlabeled. Labeling the data are costly. this is particularly true for some areas requiring special skills, such as reading radiology images by physicians. To…

Machine Learning · Statistics 2026-03-31 Yiran Huang , Jian-Feng Yang , Haoda Fu

The performance of deep learning models in remote sensing (RS) strongly depends on the availability of high-quality labeled data. However, collecting large-scale annotations is costly and time-consuming, while vast amounts of unlabeled…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Wei Huang , Zhitong Xiong , Chenying Liu , Xiao Xiang Zhu

We propose a sparse-coding framework for activity recognition in ubiquitous and mobile computing that alleviates two fundamental problems of current supervised learning approaches. (i) It automatically derives a compact, sparse and…

Machine Learning · Computer Science 2014-07-24 Sourav Bhattacharya , Petteri Nurmi , Nils Hammerla , Thomas Plötz

Active learning, a powerful paradigm in machine learning, aims at reducing labeling costs by selecting the most informative samples from an unlabeled dataset. However, the traditional active learning process often demands extensive…

Machine Learning · Computer Science 2024-01-17 Gábor Németh , Tamás Matuszka

In biomedical studies, it is often desirable to characterize the interactive mode of multiple disease outcomes beyond their marginal risk. Ising model is one of the most popular choices serving for this purpose. Nevertheless, learning…

Methodology · Statistics 2023-11-28 Daiqing Wu , Molei Liu

Many active learning and search approaches are intractable for large-scale industrial settings with billions of unlabeled examples. Existing approaches search globally for the optimal examples to label, scaling linearly or even…

In many applications, data is easy to acquire but expensive and time-consuming to label prominent examples include medical imaging and NLP. This disparity has only grown in recent years as our ability to collect data improves. Under these…

Machine Learning · Computer Science 2021-04-07 Jaya Krishna Mandivarapu , Blake Camp , Rolando Estrada

Active learning algorithms automatically identify the most informative samples from large amounts of unlabeled data and tremendously reduce human annotation effort in inducing a machine learning model. In a conventional active learning…

Machine Learning · Computer Science 2026-04-28 Varun Totakura , Ankita Singh , Yushun Dong , Shayok Chakraborty

Object detection is one of the most important and fundamental aspects of computer vision tasks, which has been broadly utilized in pose estimation, object tracking and instance segmentation models. To obtain training data for object…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Jiaming Na , Varuna De-Silva

Much recent work on visual recognition aims to scale up learning to massive, noisily-annotated datasets. We address the problem of scaling- up the evaluation of such models to large-scale datasets with noisy labels. Current protocols for…

Computer Vision and Pattern Recognition · Computer Science 2018-07-03 Phuc Nguyen , Deva Ramanan , Charless Fowlkes

While deep learning succeeds in a wide range of tasks, it highly depends on the massive collection of annotated data which is expensive and time-consuming. To lower the cost of data annotation, active learning has been proposed to…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Siyu Huang , Tianyang Wang , Haoyi Xiong , Jun Huan , Dejing Dou

Knowledge distillation with unlabeled examples is a powerful training paradigm for generating compact and lightweight student models in applications where the amount of labeled data is limited but one has access to a large pool of unlabeled…

Machine Learning · Computer Science 2023-06-12 Vasilis Kontonis , Fotis Iliopoulos , Khoa Trinh , Cenk Baykal , Gaurav Menghani , Erik Vee

We address the problem of active learning under label shift: when the class proportions of source and target domains differ. We introduce a "medial distribution" to incorporate a tradeoff between importance weighting and class-balanced…

Machine Learning · Computer Science 2021-03-01 Eric Zhao , Anqi Liu , Animashree Anandkumar , Yisong Yue

Existing active learning studies typically work in the closed-set setting by assuming that all data examples to be labeled are drawn from known classes. However, in real annotation tasks, the unlabeled data usually contains a large amount…

Machine Learning · Computer Science 2022-01-19 Kun-Peng Ning , Xun Zhao , Yu Li , Sheng-Jun Huang