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Online Continual Learning (OCL) empowers machine learning models to acquire new knowledge online across a sequence of tasks. However, OCL faces a significant challenge: catastrophic forgetting, wherein the model learned in previous tasks is…

机器学习 · 计算机科学 2024-05-16 Fan Lyu , Daofeng Liu , Linglan Zhao , Zhang Zhang , Fanhua Shang , Fuyuan Hu , Wei Feng , Liang Wang

Domain incremental learning (DIL) poses a significant challenge in real-world scenarios, as models need to be sequentially trained on diverse domains over time, all the while avoiding catastrophic forgetting. Mitigating representation…

机器学习 · 计算机科学 2024-06-25 Kishaan Jeeveswaran , Elahe Arani , Bahram Zonooz

Traditional continual learning methods prioritize knowledge retention and focus primarily on mitigating catastrophic forgetting, implicitly assuming that the data distribution of previously learned tasks remains static. This overlooks the…

机器学习 · 计算机科学 2026-02-16 Alif Ashrafee , Jedrzej Kozal , Michal Wozniak , Bartosz Krawczyk

Medical events of interest, such as mortality, often happen at a low rate in electronic medical records, as most admitted patients survive. Training models with this imbalance rate (class density discrepancy) may lead to suboptimal…

机器学习 · 计算机科学 2022-08-02 Zepeng Huo , Xiaoning Qian , Shuai Huang , Zhangyang Wang , Bobak J. Mortazavi

Deep convolutional neural networks have made significant breakthroughs in medical image classification, under the assumption that training samples from all classes are simultaneously available. However, in real-world medical scenarios,…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Xuze Hao , Wenqian Ni , Xuhao Jiang , Weimin Tan , Bo Yan

Class imbalance poses a significant challenge in classification tasks, where traditional approaches often lead to biased models and unreliable predictions. Undersampling and oversampling techniques have been commonly employed to address…

Learning from imbalanced data is one of the most significant challenges in real-world classification tasks. In such cases, neural networks performance is substantially impaired due to preference towards the majority class. Existing…

机器学习 · 计算机科学 2022-11-13 Bronislav Yasinnik , Moshe Salhov , Ofir Lindenbaum , Amir Averbuch

In this study, we systematically investigate the impact of class imbalance on classification performance of convolutional neural networks (CNNs) and compare frequently used methods to address the issue. Class imbalance is a common problem…

计算机视觉与模式识别 · 计算机科学 2018-10-16 Mateusz Buda , Atsuto Maki , Maciej A. Mazurowski

Class incremental learning (CIL) aims to incrementally update a trained model with the new classes of samples (plasticity) while retaining previously learned ability (stability). To address the most challenging issue in this goal, i.e.,…

计算机视觉与模式识别 · 计算机科学 2023-08-04 Yuhang Zhou , Jiangchao Yao , Feng Hong , Ya Zhang , Yanfeng Wang

A learning algorithm referred to as Maximum Margin (MM) is proposed for considering the class-imbalance data learning issue: the trained model tends to predict the majority of classes rather than the minority ones. That is, underfitting for…

机器学习 · 计算机科学 2023-03-30 Haeyong Kang , Thang Vu , Chang D. Yoo

In statistical modelling the biggest threat is concept drift which makes the model gradually showing deteriorating performance over time. There are state of the art methodologies to detect the impact of concept drift, however general…

机器学习 · 计算机科学 2018-10-09 Kumarjit Pathak , Jitin Kapila

Data imbalance, that is the disproportion between the number of training observations coming from different classes, remains one of the most significant challenges affecting contemporary machine learning. The negative impact of data…

机器学习 · 计算机科学 2021-11-30 Michał Koziarski

Data stream processing has become a landmark in modern machine learning applications, with concept drifts and novel class appearances posing the primary challenges faced by sophisticated recognition methods. This work proposes an…

机器学习 · 计算机科学 2026-05-29 Joanna Komorniczak

This paper presents Federated Learning with Adaptive Monitoring and Elimination (FLAME), a novel solution capable of detecting and mitigating concept drift in Federated Learning (FL) Internet of Things (IoT) environments. Concept drift…

机器学习 · 计算机科学 2024-10-08 Ioannis Mavromatis , Stefano De Feo , Aftab Khan

Class-imbalanced datasets are known to cause the problem of model being biased towards the majority classes. In this project, we set up two research questions: 1) when is the class-imbalance problem more prevalent in self-supervised…

机器学习 · 计算机科学 2022-12-23 Hye-min Chang , Sungkyun Chang

Incremental Learning (IL) allows AI systems to adapt to streamed data. Most existing algorithms make two strong hypotheses which reduce the realism of the incremental scenario: (1) new data are assumed to be readily annotated when streamed…

计算机视觉与模式识别 · 计算机科学 2020-08-26 Eden Belouadah , Adrian Popescu , Umang Aggarwal , Léo Saci

Urban time series data forecasting featuring significant contributions to sustainable development is widely studied as an essential task of the smart city. However, with the dramatic and rapid changes in the world environment, the…

机器学习 · 计算机科学 2023-11-27 Zekun Cai , Renhe Jiang , Xinyu Yang , Zhaonan Wang , Diansheng Guo , Hiroki Kobayashi , Xuan Song , Ryosuke Shibasaki

With the rapid growth of memory and computing power, datasets are becoming increasingly complex and imbalanced. This is especially severe in the context of clinical data, where there may be one rare event for many cases in the majority…

Recent years have witnessed enormous progress of online learning. However, a major challenge on the road to artificial agents is concept drift, that is, the data probability distribution would change where the data instance arrives…

机器学习 · 计算机科学 2022-01-26 Ya-nan Han , Jian-wei Liu , Bing-biao Xiao , Xin-Tan Wang , Xiong-lin Luo

Recent machine learning algorithms have been developed using well-curated datasets, which often require substantial cost and resources. On the other hand, the direct use of raw data often leads to overfitting towards frequently occurring…

机器学习 · 计算机科学 2024-02-15 Won-Seok Choi , Hyundo Lee , Dong-Sig Han , Junseok Park , Heeyeon Koo , Byoung-Tak Zhang