中文
相关论文

相关论文: Solving the Class Imbalance Problem Using a Counte…

200 篇论文

Traditional resampling methods for handling class imbalance typically uses fixed distributions, undersampling the majority or oversampling the minority. These static strategies ignore changes in class-wise learning difficulty, which can…

机器学习 · 计算机科学 2026-02-17 Arjun Basandrai , Shourya Jain , K. Ilanthenral

In this paper we propose a novel data-level algorithm for handling data imbalance in the classification task, Synthetic Majority Undersampling Technique (SMUTE). SMUTE leverages the concept of interpolation of nearby instances, previously…

机器学习 · 计算机科学 2021-04-20 Michał Koziarski

Class-imbalance is an inherent characteristic of multi-label data which affects the prediction accuracy of most multi-label learning methods. One efficient strategy to deal with this problem is to employ resampling techniques before…

机器学习 · 计算机科学 2021-05-18 Bin Liu , Grigorios Tsoumakas

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

The Synthetic Minority Over-sampling Technique (SMOTE) is one of the most widely used methods for addressing class imbalance and generating synthetic data. Despite its popularity, little attention has been paid to its privacy implications;…

密码学与安全 · 计算机科学 2026-03-03 Georgi Ganev , Reza Nazari , Rees Davison , Amir Dizche , Xinmin Wu , Ralph Abbey , Jorge Silva , Emiliano De Cristofaro

Real-world categorization is severely hampered by class imbalance because traditional ensembles favor majority classes, which lowers minority performance and overall F1-score. We provide a unique ensemble technique for imbalanced problems…

计算与语言 · 计算机科学 2026-04-14 Mohamed Ehab , Ali Hamdi , Khaled Shaban

Despite the enormous amount of data, particular events of interest can still be quite rare. Classification of rare events is a common problem in many domains, such as fraudulent transactions, malware traffic analysis and network intrusion…

机器学习 · 计算机科学 2021-01-01 Ivan Letteri , Antonio Di Cecco , Abeer Dyoub , Giuseppe Della Penna

Imbalanced datasets are ubiquitous. Classification performance on imbalanced datasets is generally poor for the minority class as the classifier cannot learn decision boundaries well. However, in sensitive applications like fraud detection,…

机器学习 · 计算机科学 2019-10-25 Vishwa Karia , Wenhao Zhang , Arash Naeim , Ramin Ramezani

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

The problem of class imbalance is extensive for focusing on numerous applications in the real world. In such a situation, nearly all of the examples are labeled as one class called majority class, while far fewer examples are labeled as the…

With the abundance of industrial datasets, imbalanced classification has become a common problem in several application domains. Oversampling is an effective method to solve imbalanced classification. One of the main challenges of the…

机器学习 · 计算机科学 2022-07-18 Min Qian , Yan-Fu Li

Imbalanced datasets in medical imaging are characterized by skewed class proportions and scarcity of abnormal cases. When trained using such data, models tend to assign higher probabilities to normal cases, leading to biased performance.…

机器学习 · 计算机科学 2023-11-14 Yumnah Hasan , Fatemeh Amerehi , Patrick Healy , Conor Ryan

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…

机器学习 · 计算机科学 2025-09-04 Vikas Kashtriya , Pardeep Singh

Synthetic Minority Oversampling Technique (SMOTE) is a common rebalancing strategy for handling imbalanced tabular data sets. However, few works analyze SMOTE theoretically. In this paper, we derive several non-asymptotic upper bound on…

机器学习 · 统计学 2026-03-18 Abdoulaye Sakho , Emmanuel Malherbe , Erwan Scornet

Class imbalance is a frequently occurring scenario in classification tasks. Learning from imbalanced data poses a major challenge, which has instigated a lot of research in this area. Data preprocessing using sampling techniques is a…

机器学习 · 计算机科学 2022-08-23 Asif Newaz , Farhan Shahriyar Haq

Uplift modeling and Heterogeneous Treatment Effect (HTE) estimation aim at predicting the causal effect of an action, such as a medical treatment or a marketing campaign on a specific individual. In this paper, we focus on data from…

机器学习 · 计算机科学 2024-12-16 Krzysztof Rudaś , Szymon Jaroszewicz

Class imbalance problems manifest in domains such as financial fraud detection or network intrusion analysis, where the prevalence of one class is much higher than another. Typically, practitioners are more interested in predicting the…

机器学习 · 统计学 2017-11-16 Peter Xenopoulos

This study is about inducing classifiers using data that is imbalanced, with a minority class being under-represented in relation to the majority classes. The first section of this research focuses on the main characteristics of data that…

机器学习 · 计算机科学 2022-10-25 Shivaditya Shivganesh , Nitin Narayanan N , Pranav Murali , Ajaykumar M

SMOTE (Synthetic Minority Oversampling Technique) is the established geometric approach to random oversampling to balance classes in the imbalanced learning problem, followed by many extensions. Its idea is to introduce synthetic data…

机器学习 · 计算机科学 2025-03-06 Oleg Kachan , Andrey Savchenko , Gleb Gusev

Class-imbalanced data, in which some classes contain far more samples than others, is ubiquitous in real-world applications. Standard techniques for handling class-imbalance usually work by training on a re-weighted loss or on re-balanced…

人工智能 · 计算机科学 2021-06-18 Arpit Bansal , Micah Goldblum , Valeriia Cherepanova , Avi Schwarzschild , C. Bayan Bruss , Tom Goldstein