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In real-world classification problems, the class balance in the training dataset does not necessarily reflect that of the test dataset, which can cause significant estimation bias. If the class ratio of the test dataset is known, instance…

机器学习 · 计算机科学 2012-06-22 Marthinus Du Plessis , Masashi Sugiyama

Most machine learning models are static, but the world is dynamic, and increasing online deployment of learned models gives increasing urgency to the development of efficient and effective mechanisms to address learning in the context of…

机器学习 · 计算机科学 2016-11-16 Geoffrey I. Webb , Roy Hyde , Hong Cao , Hai Long Nguyen , Francois Petitjean

Learning from imbalanced data is among the most challenging areas in contemporary machine learning. This becomes even more difficult when considered the context of big data that calls for dedicated architectures capable of high-performance…

机器学习 · 计算机科学 2022-11-16 William C. Sleeman , Bartosz Krawczyk

For several years till date, the major issues in terms of solving for classification problems are the issues of Imbalanced data. Because majority of the machine learning algorithms by default assumes all data are balanced, the algorithms do…

机器学习 · 统计学 2020-10-12 Richmond Addo Danquah

Despite technological advancements, the significance of interdisciplinary subjects like complex networks has grown. Exploring communication within these networks is crucial, with traffic becoming a key concern due to the expanding…

网络与互联网体系结构 · 计算机科学 2024-01-02 Seyed Hassan Yajadda , Farshad Safaei

Quantum computing offers fundamentally more expressive mechanisms for generative modeling, yet current approaches remain constrained by classical neural components that bottleneck quantum capability and hardware efficiency. We propose the…

量子物理 · 物理学 2025-10-06 Yihua Li , Jiayi Chen , Tamanna S. Kumavat , Kyriakos Flouris

Food image classification is challenging for real-world applications since existing methods require static datasets for training and are not capable of learning from sequentially available new food images. Online continual learning aims to…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Jiangpeng He , Fengqing Zhu

Recurrent neural networks play an important role in both research and industry. With the advent of quantum machine learning, the quantisation of recurrent neural networks has become recently relevant. We propose fully quantum recurrent…

量子物理 · 物理学 2023-01-20 Dmytro Bondarenko , Robert Salzmann , Viktoria-S. Schmiesing

We study the problem of smooth imitation learning for online sequence prediction, where the goal is to train a policy that can smoothly imitate demonstrated behavior in a dynamic and continuous environment in response to online, sequential…

机器学习 · 计算机科学 2016-06-06 Hoang M. Le , Andrew Kang , Yisong Yue , Peter Carr

Reinforcement learning has witnessed significant advancements, particularly with the emergence of model-based approaches. Among these, $Q$-learning has proven to be a powerful algorithm in model-free settings. However, the extension of…

机器学习 · 计算机科学 2026-03-31 Han-Dong Lim , HyeAnn Lee , Donghwan Lee

Modern machine learning suffers from catastrophic forgetting when learning new classes incrementally. The performance dramatically degrades due to the missing data of old classes. Incremental learning methods have been proposed to retain…

计算机视觉与模式识别 · 计算机科学 2019-06-03 Yue Wu , Yinpeng Chen , Lijuan Wang , Yuancheng Ye , Zicheng Liu , Yandong Guo , Yun Fu

Class imbalance, where certain classes have insufficient data, poses a critical challenge for robust classification, often biasing models toward majority classes. Distribution calibration offers a promising avenue to address this by…

机器学习 · 计算机科学 2025-10-23 Priyobrata Mondal , Faizanuddin Ansari , Swagatam Das

For many real-world classification problems, e.g., sentiment classification, most existing machine learning methods are biased towards the majority class when the Imbalance Ratio (IR) is high. To address this problem, we propose a set…

信息检索 · 计算机科学 2021-04-14 Yang Gao , Yi-Fan Li , Yu Lin , Charu Aggarwal , Latifur Khan

We present novel active learning strategies dedicated to providing a solution to the cold start stage, i.e. initializing the classification of a large set of data with no attached labels. Moreover, proposed strategies are designed to handle…

机器学习 · 计算机科学 2022-01-26 Etienne Brangbour , Pierrick Bruneau , Thomas Tamisier , Stéphane Marchand-Maillet

This study explores the challenge of improving multiclass image classification through quantum machine-learning techniques. It explores how the discarded qubit states of Noisy Intermediate-Scale Quantum (NISQ) quantum convolutional neural…

量子物理 · 物理学 2025-08-26 Shuchismita Anwar , Sowmitra Das , Muhammad Iqbal Hossain , Jishnu Mahmud

Numerous studies attempt to mitigate classification bias caused by class imbalance. However, existing studies have yet to explore the collaborative optimization of imbalanced learning and model training. This constraint hinders further…

机器学习 · 计算机科学 2025-12-30 Chuantao Li , Zhi Li , Jiahao Xu , Jie Li , Sheng Li

Spurious correlations that lead models to correct predictions for the wrong reasons pose a critical challenge for robust real-world generalization. Existing research attributes this issue to group imbalance and addresses it by maximizing…

机器学习 · 计算机科学 2025-12-02 Miaoyun Zhao , Chenrong Li , Qiang Zhang

This paper introduces a novel oversampling technique designed to improve classification performance on imbalanced datasets. The proposed method enhances the traditional SMOTE algorithm by incorporating convex combination and kernel-based…

机器学习 · 计算机科学 2025-04-15 Wenjie Li , Sibo Zhu , Zhijian Li , Hanlin Wang

Imbalanced response variable distribution is a common occurrence in data science. In fields such as fraud detection, medical diagnostics, system intrusion detection and many others where abnormal behavior is rarely observed the data under…

机器学习 · 计算机科学 2019-11-21 Firuz Kamalov

The imbalanced data classification is one of the most crucial tasks facing modern data analysis. Especially when combined with other difficulty factors, such as the presence of noise, overlapping class distributions, and small disjuncts,…

机器学习 · 计算机科学 2020-04-08 Michał Koziarski , Michał Woźniak , Bartosz Krawczyk