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Due to the inherent imbalance in real-world datasets, na\"ive Empirical Risk Minimization (ERM) tends to bias the learning process towards the majority classes, hindering generalization to minority classes. To rebalance the learning…

Machine Learning · Computer Science 2025-12-09 Zitai Wang , Qianqian Xu , Zhiyong Yang , Zhikang Xu , Linchao Zhang , Xiaochun Cao , Qingming Huang

This study investigates rare event detection on tabular data within binary classification. Standard techniques to handle class imbalance include SMOTE, which generates synthetic samples from the minority class. However, SMOTE is…

Machine Learning · Computer Science 2025-04-01 Abdoulaye Sakho , Emmanuel Malherbe , Carl-Erik Gauthier , Erwan Scornet

The problem of class imbalance along with class-overlapping has become a major issue in the domain of supervised learning. Most supervised learning algorithms assume equal cardinality of the classes under consideration while optimizing the…

Machine learning for the parameterization of subgrid-scale processes in climate models has been widely researched and adopted in a few models. A key challenge in developing data-driven parameterization schemes is how to properly represent…

Atmospheric and Oceanic Physics · Physics 2024-02-29 L. Minah Yang , Edwin P. Gerber

To address the modality learning degeneration caused by modality imbalance, existing multimodal learning~(MML) approaches primarily attempt to balance the optimization process of each modality from the perspective of model learning.…

Machine Learning · Computer Science 2025-03-07 Qingyuan Jiang , Zhouyang Chi , Xiao Ma , Qirong Mao , Yang Yang , Jinhui Tang

Class imbalance remains a critical challenge in machine learning (ML), particularly in the medical domain, where underrepresented minority classes lead to biased models and reduced predictive performance. This study introduces…

Machine Learning · Computer Science 2025-09-04 Vikas Kashtriya , Pardeep Singh

Large Language Models (LLMs) exhibit impressive performance across various tasks, but deploying them for inference poses challenges. Their high resource demands often necessitate complex, costly multi-GPU pipelines, or the use of smaller,…

Machine Learning · Computer Science 2024-12-10 Runsheng Bai , Bo Liu , Qiang Liu

The human gut microbiota is known to contribute to numerous physiological functions of the body and also implicated in a myriad of pathological conditions. Prolific research work in the past few decades have yielded valuable information…

Quantitative Methods · Quantitative Biology 2023-07-12 Isha Thombre , Pavan Kumar Perepu , Shyam Kumar Sudhakar

As machine learning is increasingly applied in an online fashion to deal with evolving data streams, the fairness of these algorithms is a matter of growing ethical and legal concern. In many use cases, class imbalance in the data also…

Machine Learning · Computer Science 2025-05-20 Kathrin Lammers , Valerie Vaquet , Barbara Hammer

Accurate illness diagnosis is vital for effective treatment and patient safety. Machine learning models are widely used for cancer diagnosis based on historical medical data. However, data imbalance remains a major challenge, leading to…

Machine Learning · Computer Science 2025-03-18 Soufiane Bacha , Huansheng Ning , Belarbi Mostefa , Doreen Sebastian Sarwatt , Sahraoui Dhelim

Semi-Supervised Learning (SSL) has achieved great success in overcoming the difficulties of labeling and making full use of unlabeled data. However, SSL has a limited assumption that the numbers of samples in different classes are balanced,…

Machine Learning · Computer Science 2020-02-18 Minsung Hyun , Jisoo Jeong , Nojun Kwak

Meta-Learning (ML) has proven to be a useful tool for training Few-Shot Learning (FSL) algorithms by exposure to batches of tasks sampled from a meta-dataset. However, the standard training procedure overlooks the dynamic nature of the…

Machine Learning · Computer Science 2021-04-13 Mateusz Ochal , Massimiliano Patacchiola , Amos Storkey , Jose Vazquez , Sen Wang

This paper introduces an approach to multi-stream quickest change detection and fault isolation for unnormalized and score-based statistical models. Traditional optimal algorithms in the quickest change detection literature require explicit…

Signal Processing · Electrical Eng. & Systems 2025-11-07 Wuxia Chen , Sean Moushegian , Vahid Tarokh , Taposh Banerjee

Pseudo-labeling has proven to be a promising semi-supervised learning (SSL) paradigm. Existing pseudo-labeling methods commonly assume that the class distributions of training data are balanced. However, such an assumption is far from…

Machine Learning · Computer Science 2023-03-03 Renzhen Wang , Xixi Jia , Quanziang Wang , Yichen Wu , Deyu Meng

We aim to demonstrate in experiments that our cost sensitive PEGASOS SVM achieves good performance on imbalanced data sets with a Majority to Minority Ratio ranging from 8.6:1 to 130:1 and to ascertain whether the including intercept…

Machine Learning · Computer Science 2023-11-13 John Sun

As part of autonomous car driving systems, semantic segmentation is an essential component to obtain a full understanding of the car's environment. One difficulty, that occurs while training neural networks for this purpose, is class…

Computer Vision and Pattern Recognition · Computer Science 2019-01-25 Robin Chan , Matthias Rottmann , Fabian Hüger , Peter Schlicht , Hanno Gottschalk

With the rapid growth of IoT devices and their diverse workloads, container-based microservices deployed at edge nodes have become a lightweight and scalable solution. However, existing microservice scheduling algorithms often assume static…

Networking and Internet Architecture · Computer Science 2025-12-11 Jingxi Lu , Wenhao Li , Jianxiong Guo , Xingjian Ding , Zhiqing Tang , Tian Wang , Weijia Jia

Ensuring reliable ATM services is essential for modern banking, directly impacting customer satisfaction and the operational efficiency of financial institutions. This study introduces a data fusion approach that utilizes multi-classifier…

Machine Learning · Computer Science 2025-01-03 Alireza Safarzadeh , Mohammad Reza Jamali , Behzad Moshiri

A data filtering method for cluster analysis is proposed, based on minimizing a least squares function with a weighted $\ell_0$-norm penalty. To overcome the discontinuity of the objective function, smooth non-convex functions are employed…

Optimization and Control · Mathematics 2017-05-23 Andrea Cristofari

Serverless computing abstracts away server management, enabling automatic scaling, efficient resource utilization, and cost-effective pricing models. However, despite these advantages, it faces the significant challenge of cold-start…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-29 Syed Salauddin Mohammad Tariq , Ali Al Zein , Soumya Sripad Vaidya , Arati Khanolkar , Zheng Song , Probir Roy