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It is well-known that a deep neural network has a strong fitting capability and can easily achieve a low training error even with randomly assigned class labels. When the number of training samples is small, or the class labels are noisy,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Avraham Chapman , Lingqiao Liu

The rapid expansion of Internet of Things (IoT) deployments across diverse sectors has significantly enhanced operational efficiency, yet concurrently elevated cybersecurity vulnerabilities due to increased exposure to cyber threats. Given…

Machine Learning · Computer Science 2025-12-01 Md. Sad Abdullah Sami , Mushfiquzzaman Abid

Recent network traffic classification methods benefitfrom machine learning (ML) technology. However, there aremany challenges due to use of ML, such as: lack of high-qualityannotated datasets, data-drifts and other effects causing aging…

Networking and Internet Architecture · Computer Science 2022-11-16 Jaroslav Pešek , Dominik Soukup , Tomáš Čejka

Anomaly detection for time-series data becomes an essential task for many data-driven applications fueled with an abundance of data and out-of-the-box machine-learning algorithms. In many real-world settings, developing a reliable anomaly…

Active learning (AL) is a machine learning algorithm that can achieve greater accuracy with fewer labeled training instances, for having the ability to ask oracles to label the most valuable unlabeled data chosen iteratively and…

Machine Learning · Computer Science 2022-09-30 Ruoyu Wang

High false-positive rate is a long-standing challenge for anomaly detection algorithms, especially in high-stake applications. To identify the true anomalies, in practice, analysts or domain experts will be employed to investigate the top…

Machine Learning · Computer Science 2020-09-17 Daochen Zha , Kwei-Herng Lai , Mingyang Wan , Xia Hu

Anomaly detection attempts at finding examples that deviate from the expected behaviour. Usually, anomaly detection is tackled from an unsupervised perspective because anomalous labels are rare and difficult to acquire. However, the lack of…

Machine Learning · Computer Science 2023-01-10 Lorenzo Perini , Daniele Giannuzzi , Jesse Davis

This study investigates the adoption and effectiveness of AI-based anomaly detection in cross-provider electronic health record (EHR) environments. It aims to (1) identify the organisational and digital capabilities required for successful…

Computers and Society · Computer Science 2026-04-14 Cao Tram Anh Hoang

Active learning (AL) combines data labeling and model training to minimize the labeling cost by prioritizing the selection of high value data that can best improve model performance. In pool-based active learning, accessible unlabeled data…

Machine Learning · Computer Science 2020-07-21 Mingfei Gao , Zizhao Zhang , Guo Yu , Sercan O. Arik , Larry S. Davis , Tomas Pfister

Active domain adaptation (ADA) studies have mainly addressed query selection while following existing domain adaptation strategies. However, we argue that it is critical to consider not only query selection criteria but also domain…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Kyeongtak Han , Youngeun Kim , Dongyoon Han , Sungeun Hong

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

The availability of large labeled datasets is the key component for the success of deep learning. However, annotating labels on large datasets is generally time-consuming and expensive. Active learning is a research area that addresses the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Felix Buchert , Nassir Navab , Seong Tae Kim

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

We study the problem of actively learning a classifier with a low calibration error. One of the most popular Acquisition Functions (AFs) in pool-based Active Learning (AL) is querying by the model's uncertainty. However, we recognize that…

Machine Learning · Computer Science 2025-10-06 Ha Manh Bui , Iliana Maifeld-Carucci , Anqi Liu

Anomaly detection in decision-making sequences is a challenging problem due to the complexity of normality representation learning and the sequential nature of the task. Most existing methods based on Reinforcement Learning (RL) are…

Machine Learning · Computer Science 2024-02-08 Chen Wang , Sarah Erfani , Tansu Alpcan , Christopher Leckie

Anomaly detection is the task of identifying abnormal behavior of a system. Anomaly detection in computational workflows is of special interest because of its wide implications in various domains such as cybersecurity, finance, and social…

Machine Learning · Computer Science 2023-10-03 Hongwei Jin , Krishnan Raghavan , George Papadimitriou , Cong Wang , Anirban Mandal , Ewa Deelman , Prasanna Balaprakash

Do we need active learning? The rise of strong deep semi-supervised methods raises doubt about the usability of active learning in limited labeled data settings. This is caused by results showing that combining semi-supervised learning…

Machine Learning · Computer Science 2023-08-17 Sandra Gilhuber , Rasmus Hvingelby , Mang Ling Ada Fok , Thomas Seidl

Anomaly detection is concerned with identifying examples in a dataset that do not conform to the expected behaviour. While a vast amount of anomaly detection algorithms exist, little attention has been paid to explaining why these…

Machine Learning · Computer Science 2021-12-14 Nirmal Sobha Kartha , Clément Gautrais , Vincent Vercruyssen

Several works in computer vision have demonstrated the effectiveness of active learning for adapting the recognition model when new unlabeled data becomes available. Most of these works consider that labels obtained from the annotator are…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Sudipta Paul , Shivkumar Chandrasekaran , B. S. Manjunath , Amit K. Roy-Chowdhury

Convolutional Neural Networks (CNNs) have proven to be state-of-the-art models for supervised computer vision tasks, such as image classification. However, large labeled data sets are generally needed for the training and validation of such…

Machine Learning · Computer Science 2020-10-28 Patrick Hemmer , Niklas Kühl , Jakob Schöffer