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Open-set active learning (OSAL) aims to identify informative samples for annotation when unlabeled data may contain previously unseen classes-a common challenge in safety-critical and open-world scenarios. Existing approaches typically rely…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Chen-Chen Zong , Yu-Qi Chi , Xie-Yang Wang , Yan Cui , Sheng-Jun Huang

We introduce Information Condensing Active Learning (ICAL), a batch mode model agnostic Active Learning (AL) method targeted at Deep Bayesian Active Learning that focuses on acquiring labels for points which have as much information as…

Machine Learning · Computer Science 2020-02-21 Siddhartha Jain , Ge Liu , David Gifford

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

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

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

In the era of data-driven intelligence, the paradox of data abundance and annotation scarcity has emerged as a critical bottleneck in the advancement of machine learning. This paper gives a detailed overview of Active Learning (AL), which…

Machine Learning · Computer Science 2025-11-27 Chiung-Yi Tseng , Junhao Song , Ziqian Bi , Tianyang Wang , Chia Xin Liang , Xinyuan Song , Ming Liu

Active learning strives to reduce annotation costs by choosing the most critical examples to label. Typically, the active learning strategy is contingent on the classification model. For instance, uncertainty sampling depends on poorly…

Computation and Language · Computer Science 2020-10-26 Michelle Yuan , Hsuan-Tien Lin , Jordan Boyd-Graber

Active learning aims to optimize the dataset annotation process when resources are constrained. Most existing methods are designed for balanced datasets. Their practical applicability is limited by the fact that a majority of real-life…

Machine Learning · Computer Science 2022-02-02 Umang Aggarwal , Adrian Popescu , Céline Hudelot

Pretraining neural networks with massive unlabeled datasets has become popular as it equips the deep models with a better prior to solve downstream tasks. However, this approach generally assumes that the downstream tasks have access to…

Sound · Computer Science 2024-02-19 Harlin Lee , Aaqib Saeed , Andrea L. Bertozzi

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

Active Learning (AL) and Semi-supervised Learning are two techniques that have been studied to reduce the high cost of deep learning by using a small amount of labeled data and a large amount of unlabeled data. To improve the accuracy of…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Jaeseung Lim , Jongkeun Na , Nojun Kwak

Active learning (AL) aims to improve model performance within a fixed labeling budget by choosing the most informative data points to label. Existing AL focuses on the single-domain setting, where all data come from the same domain (e.g.,…

Machine Learning · Computer Science 2024-02-12 Guang-Yuan Hao , Hengguan Huang , Haotian Wang , Jie Gao , Hao Wang

Active Learning (AL) aims to reduce the labeling burden by interactively selecting the most informative samples from a pool of unlabeled data. While there has been extensive research on improving AL query methods in recent years, some…

Computer Vision and Pattern Recognition · Computer Science 2023-11-06 Carsten T. Lüth , Till J. Bungert , Lukas Klein , Paul F. Jaeger

The promise of active learning (AL) is to reduce labelling costs by selecting the most valuable examples to annotate from a pool of unlabelled data. Identifying these examples is especially challenging with high-dimensional data (e.g.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Amin Parvaneh , Ehsan Abbasnejad , Damien Teney , Reza Haffari , Anton van den Hengel , Javen Qinfeng Shi

We propose Cartography Active Learning (CAL), a novel Active Learning (AL) algorithm that exploits the behavior of the model on individual instances during training as a proxy to find the most informative instances for labeling. CAL is…

Computation and Language · Computer Science 2022-05-10 Mike Zhang , Barbara Plank

We propose Disentanglement based Active Learning (DAL), a new active learning technique based on self-supervision which leverages the concept of disentanglement. Instead of requesting labels from human oracle, our method automatically…

Machine Learning · Computer Science 2021-09-28 Silpa Vadakkeeveetil Sreelatha , Adarsh Kappiyath , Sumitra S

Gaining insights into the preferences of new users and subsequently personalizing recommendations necessitate managing user interactions intelligently, namely, posing pertinent questions to elicit valuable information effectively. In this…

Machine Learning · Computer Science 2023-09-04 Furkan Cantürk , Reyhan Aydoğan

Class imbalance severely impacts machine learning performance on minority classes in real-world applications. While various solutions exist, active learning offers a fundamental fix by strategically collecting balanced, informative labeled…

Machine Learning · Computer Science 2025-06-13 Shyam Nuggehalli , Jifan Zhang , Lalit Jain , Robert Nowak

Temporal Action Localization (TAL) aims to predict both action category and temporal boundary of action instances in untrimmed videos, i.e., start and end time. Fully-supervised solutions are usually adopted in most existing works, and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Ding Li , Xuebing Yang , Yongqiang Tang , Chenyang Zhang , Wensheng Zhang

Active Learning (AL) is a powerful tool for learning with less labeled data, in particular, for specialized domains, like legal documents, where unlabeled data is abundant, but the annotation requires domain expertise and is thus expensive.…

Computation and Language · Computer Science 2022-11-16 Sepideh Mamooler , Rémi Lebret , Stéphane Massonnet , Karl Aberer