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The proliferation of spam on the Web has necessitated the development of machine learning models to automate their detection. However, the dynamic nature of spam and the sophisticated evasion techniques employed by spammers often lead to…

Cryptography and Security · Computer Science 2024-10-02 Noah Kader , Inwon Kang , Oshani Seneviratne

Graph-based Active Learning (AL) leverages the structure of graphs to efficiently prioritize label queries, reducing labeling costs and user burden in applications like health monitoring, human behavior analysis, and sensor networks. By…

Machine Learning · Computer Science 2025-06-13 Maryam Khalid , Akane Sano

Incentive mechanisms for crowdsourcing are designed to incentivize financially self-interested workers to generate and report high-quality labels. Existing mechanisms are often developed as one-shot static solutions, assuming a certain…

Computer Science and Game Theory · Computer Science 2018-06-04 Zehong Hu , Yitao Liang , Yang Liu , Jie Zhang

Crowdsourcing has been successfully employed in the past as an effective and cheap way to execute classification tasks and has therefore attracted the attention of the research community. However, we still lack a theoretical understanding…

Human-Computer Interaction · Computer Science 2016-10-20 Edoardo Manino , Long Tran-Thanh , Nicholas R. Jennings

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

Crowdsourcing platforms offer a practical solution to the problem of affordably annotating large datasets for training supervised classifiers. Unfortunately, poor worker performance frequently threatens to compromise annotation reliability,…

Machine Learning · Computer Science 2014-01-17 Liyue Zhao , Yu Zhang , Gita Sukthankar

Active learning is to design label-efficient algorithms by sampling the most representative samples to be labeled by an oracle. In this paper, we propose a state relabeling adversarial active learning model (SRAAL), that leverages both the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-13 Beichen Zhang , Liang Li , Shijie Yang , Shuhui Wang , Zheng-Jun Zha , Qingming Huang

Active learning (AL) is a training paradigm for selecting unlabeled samples for annotation to improve model performance on a test set, which is useful when only a limited number of samples can be annotated. These algorithms often work by…

Computation and Language · Computer Science 2026-04-13 Lorenzo Jaime Yu Flores , Cesare Spinoso di-Piano , Ori Ernst , David Ifeoluwa Adelani , Jackie Chi Kit Cheung

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

Training multimodal models requires a large amount of labeled data. Active learning (AL) aim to reduce labeling costs. Most AL methods employ warm-start approaches, which rely on sufficient labeled data to train a well-calibrated model that…

Multimedia · Computer Science 2024-12-13 Meng Shen , Yake Wei , Jianxiong Yin , Deepu Rajan , Di Hu , Simon See

Node classification is one of the core tasks on attributed graphs, but successful graph learning solutions require sufficiently labeled data. To keep annotation costs low, active graph learning focuses on selecting the most qualitative…

Machine Learning · Computer Science 2023-10-03 Sandra Gilhuber , Julian Busch , Daniel Rotthues , Christian M. M. Frey , Thomas Seidl

Efficient data annotation remains a critical challenge in machine learning, particularly for object detection tasks requiring extensive labeled data. Active learning (AL) has emerged as a promising solution to minimize annotation costs by…

Computer Vision and Pattern Recognition · Computer Science 2025-09-25 Somraj Gautam , Nachiketa Purohit , Gaurav Harit

Active Learning (AL) addresses the high costs of collecting human annotations by strategically annotating the most informative samples. However, for subjective NLP tasks, incorporating a wide range of perspectives in the annotation process…

Computation and Language · Computer Science 2024-10-24 Michiel van der Meer , Neele Falk , Pradeep K. Murukannaiah , Enrico Liscio

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

Batch active learning (BAL) is a crucial technique for reducing labeling costs and improving data efficiency in training large-scale deep learning models. Traditional BAL methods often rely on metrics like Mahalanobis Distance to balance…

Machine Learning · Computer Science 2026-04-15 Guofeng Cui , Yang Liu , Pichao Wang , Hankai Hsu , Xiaohang Sun , Xiang Hao , Zhu Liu

Many data mining tasks cannot be completely addressed by auto- mated processes, such as sentiment analysis and image classification. Crowdsourcing is an effective way to harness the human cognitive ability to process these machine-hard…

Databases · Computer Science 2018-10-22 Chengliang Chai , Ju Fan , Guoliang Li , Jiannan Wang , Yudian Zheng

To learn a reliable people counter from crowd images, head center annotations are normally required. Annotating head centers is however a laborious and tedious process in dense crowds. In this paper, we present an active learning framework…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Zhen Zhao , Miaojing Shi , Xiaoxiao Zhao , Li Li

Pool-based active learning (AL) aims to optimize the annotation process (i.e., labeling) as the acquisition of annotations is often time-consuming and therefore expensive. For this purpose, an AL strategy queries annotations intelligently…

Machine Learning · Computer Science 2022-01-06 Marek Herde , Denis Huseljic , Bernhard Sick , Adrian Calma

Stream-based active learning (AL) is an efficient training data collection method, and it is used to reduce human annotation cost required in machine learning. However, it is difficult to say that the human cost is low enough because most…

Robotics · Computer Science 2023-10-04 Kanata Suzuki , Taro Sunagawa , Tomotake Sasaki , Takashi Katoh

Active Learning (AL) is increasingly important in a broad range of applications. Two main AL principles to obtain accurate classification with few labeled data are refinement of the current decision boundary and exploration of poorly…

Machine Learning · Computer Science 2012-10-19 Jens Roeder , Boaz Nadler , Kevin Kunzmann , Fred A. Hamprecht