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Given imbalanced data, it is hard to train a good classifier using deep learning because of the poor generalization of minority classes. Traditionally, the well-known synthetic minority oversampling technique (SMOTE) for data augmentation,…

Machine Learning · Computer Science 2023-11-06 Wei-Chao Cheng , Tan-Ha Mai , Hsuan-Tien Lin

Machine learning has emerged as a promising approach to path loss prediction, yet its effectiveness often degrades when measurement data are scarce. To address this limitation, we propose an ensemble-based machine learning framework that…

Signal Processing · Electrical Eng. & Systems 2026-05-26 Ahmed P. Mohamed , Byunghyun Lee , Yaguang Zhang , Christopher R. Anderson , David J. Love , James V. Krogmeier

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

Predicting the probability of non-performing loans for individuals has a vital and beneficial role for banks to decrease credit risk and make the right decisions before giving the loan. The trend to make these decisions are based on credit…

Machine Learning · Computer Science 2022-09-21 Rufael Fekadu , Anteneh Getachew , Yishak Tadele , Nuredin Ali , Israel Goytom

Accurate demand forecasting is critical for brick-and-mortar retailers to optimize inventory management and minimize costs. This study evaluates statistical baselines, tree-based ensembles (XGBoost and LightGBM), and deep learning…

Machine Learning · Computer Science 2026-03-12 Luka Hobor , Mario Brcic , Lidija Polutnik , Ante Kapetanovic

Despite over two decades of progress, imbalanced data is still considered a significant challenge for contemporary machine learning models. Modern advances in deep learning have magnified the importance of the imbalanced data problem. The…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Damien Dablain , Bartosz Krawczyk , Nitesh V. Chawla

With healthcare being critical aspect, health insurance has become an important scheme in minimizing medical expenses. Following this, the healthcare industry has seen a significant increase in fraudulent activities owing to increased…

Machine Learning · Computer Science 2022-06-29 Akrity Kumari , Narinder Singh Punn , Sanjay Kumar Sonbhadra , Sonali Agarwal

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…

Machine Learning · Statistics 2017-11-16 Peter Xenopoulos

As several studies have shown, predicting credit risk is still a major concern for the financial services industry and is receiving a lot of scholarly interest. This area of study is crucial because it aids financial organizations in…

Machine Learning · Computer Science 2024-12-24 Sahar Yarmohammadtoosky Dinesh Chowdary Attota

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…

Software Engineering · Computer Science 2021-03-25 Murali Sridharan , Mika Mantyla , Leevi Rantala , Maelick Claes

Credit card fraud remains a significant challenge due to class imbalance and fraudsters mimicking legitimate behavior. This study evaluates five machine learning models - Logistic Regression, Random Forest, XGBoost, K-Nearest Neighbors…

Machine Learning · Computer Science 2025-09-19 Iva Popova , Hamza A. A. Gardi

The application of federated extreme gradient boosting to mobile crowdsensing apps brings several benefits, in particular high performance on efficiency and classification. However, it also brings a new challenge for data and model privacy…

Cryptography and Security · Computer Science 2020-05-13 Zhuzhu Wang , Yilong Yang , Yang Liu , Ximeng Liu , Brij B. Gupta , Jianfeng Ma

Boosting is an ensemble method that combines base models in a sequential manner to achieve high predictive accuracy. A popular learning algorithm based on this ensemble method is eXtreme Gradient Boosting (XGB). We present an adaptation of…

Machine Learning · Computer Science 2020-05-18 Jacob Montiel , Rory Mitchell , Eibe Frank , Bernhard Pfahringer , Talel Abdessalem , Albert Bifet

The property and casualty (P&C) insurance industry faces challenges in developing claim predictive models due to the highly right-skewed distribution of positive claims with excess zeros. To address this, actuarial science researchers have…

Machine Learning · Computer Science 2024-06-19 Banghee So

Online leading has disrupted the traditional consumer banking sector with more effective loan processing. Risk prediction and monitoring is critical for the success of the business model. Traditional credit score models fall short in…

Risk Management · Quantitative Finance 2017-07-18 Xiaojiao Yu

Federated learning is the distributed machine learning framework that enables collaborative training across multiple parties while ensuring data privacy. Practical adaptation of XGBoost, the state-of-the-art tree boosting framework, to…

Machine Learning · Computer Science 2021-08-13 Nhan Khanh Le , Yang Liu , Quang Minh Nguyen , Qingchen Liu , Fangzhou Liu , Quanwei Cai , Sandra Hirche

This study investigates the effectiveness of several machine learning algorithms for static malware detection using the EMBER dataset, which contains feature representations of Portable Executable (PE) files. We evaluate eight…

Cryptography and Security · Computer Science 2025-07-28 Md Min-Ha-Zul Abedin , Tazqia Mehrub

Class imbalance problem has been a challenging research problem in the fields of machine learning and data mining as most real life datasets are imbalanced. Several existing machine learning algorithms try to maximize the accuracy…

This work empirically evaluates machine learning models on two imbalanced public datasets (KDDCUP99 and Credit Card Fraud 2013). The method includes data preparation, model training, and evaluation, using an 80/20 (train/test) split. Models…

Machine Learning · Computer Science 2025-04-29 Markus Haug , Gissel Velarde

Data augmentation with generative adversarial networks (GANs) has been popular for class imbalance problems, mainly for pattern classification and computer vision-related applications. Extreme value forecasting is a challenging field that…

Machine Learning · Computer Science 2025-10-06 Junru Hua , Rahul Ahluwalia , Rohitash Chandra