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Imbalanced regression refers to prediction tasks where the target variable is skewed. This skewness hinders machine learning models, especially neural networks, which concentrate on dense regions and therefore perform poorly on…

机器学习 · 计算机科学 2025-08-11 Shayan Alahyari , Mike Domaratzki

Robots should be able to learn complex behaviors from human demonstrations. In practice, these human-provided datasets are inevitably imbalanced: i.e., the human demonstrates some subtasks more frequently than others. State-of-the-art…

机器人学 · 计算机科学 2026-01-06 Sagar Parekh , Heramb Nemlekar , Dylan P. Losey

Class imbalance remains a fundamental challenge in machine learning, with traditional solutions often creating as many problems as they solve. We demonstrate that group-aware threshold calibration--setting different decision thresholds for…

机器学习 · 计算机科学 2025-09-04 Hunter Gittlin

Numerous Deep Learning (DL)-based approaches have gained attention in software Log Anomaly Detection (LAD), yet class imbalance in training data remains a challenge, with anomalies often comprising less than 1% of datasets like Thunderbird.…

软件工程 · 计算机科学 2024-10-31 Xiaoxue Ma , Huiqi Zou , Pinjia He , Jacky Keung , Yishu Li , Xiao Yu , Federica Sarro

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…

机器学习 · 计算机科学 2025-01-03 Alireza Safarzadeh , Mohammad Reza Jamali , Behzad Moshiri

Over 85 oversampling algorithms, mostly extensions of the SMOTE algorithm, have been built over the past two decades, to solve the problem of imbalanced datasets. However, it has been evident from previous studies that different…

机器学习 · 计算机科学 2021-07-16 Saptarshi Bej , Kristian Schultz , Prashant Srivastava , Markus Wolfien , Olaf Wolkenhauer

Purpose: Malicious web domain identification is of significant importance to the security protection of Internet users. With online credibility and performance data, this paper aims to investigate the use of machine learning tech-niques for…

机器学习 · 计算机科学 2018-10-22 Zhongyi Hu , Raymond Chiong , Ilung Pranata , Yukun Bao , Yuqing Lin

Monitoring data transfer performance is a crucial task in scientific computing networks. By predicting performance early in the communication phase, potentially sluggish transfers can be identified and selectively monitored, optimizing…

机器学习 · 计算机科学 2025-12-17 Jacob Taegon Kim , Alex Sim , Kesheng Wu , Jinoh Kim

In this work, we employ the Synthetic Minority Oversampling Technique (SMOTE) to generate instances of the minority class of an imbalanced Coronary Artery Disease dataset. We firstly analyze the public dataset Z -- Alizadeh Sani, a dataset…

医学物理 · 物理学 2020-04-09 Ioannis D. Apostolopoulos

Classification data sets with skewed class proportions are called imbalanced. Class imbalance is a problem since most machine learning classification algorithms are built with an assumption of equal representation of all classes in the…

机器学习 · 计算机科学 2022-12-22 Azal Ahmad Khan

In last few years there are major changes and evolution has been done on classification of data. As the application area of technology is increases the size of data also increases. Classification of data becomes difficult because of…

机器学习 · 计算机科学 2013-05-09 Rushi Longadge , Snehalata Dongre

Credit scoring is vital in the financial industry, assessing the risk of lending to credit card applicants. Traditional credit scoring methods face challenges with large datasets and data imbalance between creditworthy and non-creditworthy…

计算工程、金融与科学 · 计算机科学 2024-09-26 Kejian Tong , Zonglin Han , Yanxin Shen , Yujian Long , Yijing Wei

Financial fraud detection poses a typical challenge characterized by class imbalance, where instances of fraud are extremely rare but can lead to unpredictable economic losses if misidentified. Precisely classifying these critical minority…

机器学习 · 计算机科学 2024-02-14 Lingyun Zhong

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

Credit scoring models face a critical challenge: severe class imbalance, with default rates typically below 10%, which hampers model learning and predictive performance. While synthetic data augmentation techniques such as SMOTE and ADASYN…

应用统计 · 统计学 2025-10-22 Luis H. Chia

Network traffic data is huge, varying and imbalanced because various classes are not equally distributed. Machine learning (ML) algorithms for traffic analysis uses the samples from this data to recommend the actions to be taken by the…

网络与互联网体系结构 · 计算机科学 2013-11-13 Raman Singh , Harish Kumar , R. K. Singla

Most state-of-the-art computer vision models heavily depend on data. However, many datasets exhibit extreme class imbalance which has been shown to negatively impact model performance. Among the training-time and data-generation solutions…

计算机视觉与模式识别 · 计算机科学 2024-03-01 Indu Panigrahi , Richard Zhu

Class imbalance would lead to biased classifiers that favor the majority class and disadvantage the minority class. Unfortunately, from a practical perspective, the minority class is of importance in many real-life applications. Hybrid…

机器学习 · 计算机科学 2024-12-17 Wenbin Pei , Ruohao Dai , Bing Xue , Mengjie Zhang , Qiang Zhang , Yiu-Ming Cheung , Shuyin Xia

A high imbalance exists between technical debt and non-technical debt source code comments. Such imbalance affects Self-Admitted Technical Debt (SATD) detection performance, and existing literature lacks empirical evidence on the choice of…

软件工程 · 计算机科学 2021-03-25 Murali Sridharan , Mika Mantyla , Leevi Rantala , Maelick Claes

This study examines the impact of class-imbalanced data on deep learning models and proposes a technique for data balancing by generating synthetic data for the minority class. Unlike random-based oversampling, our method prioritizes…

机器学习 · 计算机科学 2024-02-26 Hung Nguyen , Morris Chang