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While federated learning (FL) is a widely popular distributed machine learning (ML) strategy that protects data privacy, time-varying wireless network parameters and heterogeneous configurations of the wireless devices pose significant…

机器学习 · 计算机科学 2025-08-28 Ferdous Pervej , Minseok Choi , Andreas F. Molisch

Automated Machine Learning has grown very successful in automating the time-consuming, iterative tasks of machine learning model development. However, current methods struggle when the data is imbalanced. Since many real-world datasets are…

机器学习 · 计算机科学 2022-11-02 Prabhant Singh , Joaquin Vanschoren

Active learning (AL) is a prominent technique for reducing the annotation effort required for training machine learning models. Deep learning offers a solution for several essential obstacles to deploying AL in practice but introduces many…

The aim of Active Learning is to select the most informative samples from an unlabelled set of data. This is useful in cases where the amount of data is large and labelling is expensive, such as in machine vision or medical imaging. Two…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Julien Combes , Alexandre Derville , Jean-François Coeurjolly

The primary challenge of multi-label active learning, differing it from multi-class active learning, lies in assessing the informativeness of an indefinite number of labels while also accounting for the inherited label correlation. Existing…

机器学习 · 计算机科学 2025-09-05 Yuanyuan Qi , Jueqing Lu , Xiaohao Yang , Joanne Enticott , Lan Du

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…

机器学习 · 计算机科学 2012-10-19 Jens Roeder , Boaz Nadler , Kevin Kunzmann , Fred A. Hamprecht

In many real-world machine learning applications, unlabeled data can be easily obtained, but it is very time-consuming and/or expensive to label them. So, it is desirable to be able to select the optimal samples to label, so that a good…

机器学习 · 计算机科学 2020-01-16 Ziang Liu , Dongrui Wu

An ever increasing volume of data is nowadays becoming available in a streaming manner in many application areas, such as, in critical infrastructure systems, finance and banking, security and crime and web analytics. To meet this new…

机器学习 · 计算机科学 2020-10-06 Kleanthis Malialis , Christos G. Panayiotou , Marios M. Polycarpou

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…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Chen-Chen Zong , Yu-Qi Chi , Xie-Yang Wang , Yan Cui , Sheng-Jun Huang

Active learning (AL) for multiple target models aims to reduce labeled data querying while effectively training multiple models concurrently. Existing AL algorithms often rely on iterative model training, which can be computationally…

机器学习 · 计算机科学 2024-10-03 Sheng-Jun Huang , Yi Li , Yiming Sun , Ying-Peng Tang

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…

机器学习 · 计算机科学 2022-09-30 Ruoyu Wang

We revisit the common practice of evaluating adaptation of Online Continual Learning (OCL) algorithms through the metric of online accuracy, which measures the accuracy of the model on the immediate next few samples. However, we show that…

机器学习 · 计算机科学 2023-05-17 Hasan Abed Al Kader Hammoud , Ameya Prabhu , Ser-Nam Lim , Philip H. S. Torr , Adel Bibi , Bernard Ghanem

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…

机器学习 · 计算机科学 2025-06-13 Shyam Nuggehalli , Jifan Zhang , Lalit Jain , Robert Nowak

In a typical multi-label setting, a picture contains on average few positive labels, and many negative ones. This positive-negative imbalance dominates the optimization process, and can lead to under-emphasizing gradients from positive…

计算机视觉与模式识别 · 计算机科学 2021-07-30 Emanuel Ben-Baruch , Tal Ridnik , Nadav Zamir , Asaf Noy , Itamar Friedman , Matan Protter , Lihi Zelnik-Manor

While both cost-sensitive learning and online learning have been studied extensively, the effort in simultaneously dealing with these two issues is limited. Aiming at this challenge task, a novel learning framework is proposed in this…

机器学习 · 计算机科学 2013-10-31 Boyu Wang , Joelle Pineau

We study learning control in an online reset-free lifelong learning scenario, where mistakes can compound catastrophically into the future and the underlying dynamics of the environment may change. Traditional model-free policy learning…

机器学习 · 计算机科学 2020-06-30 Kevin Lu , Igor Mordatch , Pieter Abbeel

Active learning aims to reduce the labeling effort that is required to train algorithms by learning an acquisition function selecting the most relevant data for which a label should be requested from a large unlabeled data pool. Active…

计算机视觉与模式识别 · 计算机科学 2021-10-12 Javad Zolfaghari Bengar , Joost van de Weijer , Laura Lopez Fuentes , Bogdan Raducanu

Label efficiency has become an increasingly important objective in deep learning applications. Active learning aims to reduce the number of labeled examples needed to train deep networks, but the empirical performance of active learning…

机器学习 · 计算机科学 2023-12-19 Jifan Zhang , Shuai Shao , Saurabh Verma , Robert Nowak

Ordinal learning (OL) is a type of machine learning models with broad utility in health care applications such as diagnosis of different grades of a disease (e.g., mild, modest, severe) and prediction of the speed of disease progression…

机器学习 · 计算机科学 2023-12-18 Lujia Wang , Hairong Wang , Yi Su , Fleming Lure , Jing Li

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…

机器人学 · 计算机科学 2023-10-04 Kanata Suzuki , Taro Sunagawa , Tomotake Sasaki , Takashi Katoh