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Machine Learning models are increasingly used in businesses to detect faults and anomalies in complex systems. In this work, we take this approach a step further: beyond merely detecting anomalies, we aim to identify the optimal control…

Systems and Control · Electrical Eng. & Systems 2025-07-15 Emilio Carrizosa , Martina Fischetti , Roshell Haaker , Juan Miguel Morales

Supervised contrastive learning (SupCon) has proven to be a powerful alternative to the standard cross-entropy loss for classification of multi-class balanced datasets. However, it struggles to learn well-conditioned representations of…

Machine Learning · Computer Science 2025-03-24 David Mildenberger , Paul Hager , Daniel Rueckert , Martin J Menten

Class imbalanced problems (CIP) are one of the potential challenges in developing unbiased Machine Learning (ML) models for predictions. CIP occurs when data samples are not equally distributed between the two or multiple classes.…

Machine Learning · Computer Science 2023-05-18 Md Manjurul Ahsan , Shivakumar Raman , Zahed Siddique

Data scarcity and class imbalance are persistent challenges in training robust NLP models, especially in specialized domains or low-resource settings. We propose a novel technique, SMOTExT, that adapts the idea of Synthetic Minority…

Computation and Language · Computer Science 2025-05-20 Mateusz Bystroński , Mikołaj Hołysz , Grzegorz Piotrowski , Nitesh V. Chawla , Tomasz Kajdanowicz

Despite the evolution of language models, they continue to portray harmful societal biases and stereotypes inadvertently learned from training data. These inherent biases often result in detrimental effects in various applications.…

Computation and Language · Computer Science 2024-07-24 Ewoenam Kwaku Tokpo , Toon Calders

Data augmentation aims to enrich training samples for alleviating the overfitting issue in low-resource or class-imbalanced situations. Traditional methods first devise task-specific operations such as Synonym Substitute, then preset the…

Computation and Language · Computer Science 2021-09-03 Shuhuai Ren , Jinchao Zhang , Lei Li , Xu Sun , Jie Zhou

In most real-world scenarios, labeled training datasets are highly class-imbalanced, where deep neural networks suffer from generalizing to a balanced testing criterion. In this paper, we explore a novel yet simple way to alleviate this…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Jaehyung Kim , Jongheon Jeong , Jinwoo Shin

We regularly consider answering counterfactual questions in practice, such as "Would people with diabetes take a turn for the better had they choose another medication?". Observational studies are growing in significance in answering such…

Machine Learning · Computer Science 2022-08-16 Guanglin Zhou , Lina Yao , Xiwei Xu , Chen Wang , Liming Zhu

In this paper, we perform an in-depth study of how data augmentation techniques improve synthetic or spoofed audio detection. Specifically, we propose methods to deal with channel variability, different audio compressions, different…

Sound · Computer Science 2021-10-22 Ariel Cohen , Inbal Rimon , Eran Aflalo , Haim Permuter

A common problem of the real-world data sets is the class imbalance, which can significantly affect the classification abilities of classifiers. Numerous methods have been proposed to cope with this problem; however, even state-of-the-art…

Machine Learning · Computer Science 2019-11-19 Hubert Jegierski , Stanisław Saganowski

The authors compared oversampling methods for the problem of multi-class topic classification. The SMOTE algorithm underlies one of the most popular oversampling methods. It consists in choosing two examples of a minority class and…

Computation and Language · Computer Science 2020-08-12 Anna Glazkova

Reinforcement learning control algorithms face significant challenges due to out-of-distribution and inefficient exploration problems. While model-based reinforcement learning enhances the agent's reasoning and planning capabilities by…

Machine Learning · Computer Science 2025-03-19 Sunbowen Lee , Yicheng Gong , Chao Deng

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…

Machine Learning · Computer Science 2022-12-22 Azal Ahmad Khan

The collected data from industrial machines are often imbalanced, which poses a negative effect on learning algorithms. However, this problem becomes more challenging for a mixed type of data or while there is overlapping between classes.…

Computer Vision and Pattern Recognition · Computer Science 2020-08-10 Masoumeh Zareapoor , Pourya Shamsolmoali , Jie Yang

Counterfactual Data Augmentation (CDA) has been one of the preferred techniques for mitigating gender bias in natural language models. CDA techniques have mostly employed word substitution based on dictionaries. Although such…

Computation and Language · Computer Science 2023-11-07 Ewoenam Kwaku Tokpo , Toon Calders

The growing integration of machine learning (ML) and artificial intelligence (AI) models into high-stakes domains such as healthcare and scientific research calls for models that are not only accurate but also interpretable. Among the…

Machine Learning · Computer Science 2025-10-23 Zhuo Cao , Xuan Zhao , Lena Krieger , Hanno Scharr , Ira Assent

Class-imbalance refers to classification problems in which many more instances are available for certain classes than for others. Such imbalanced datasets require special attention because traditional classifiers generally favor the…

Machine Learning · Computer Science 2018-11-30 Rafael M. O. Cruz , Mariana A. Souza , Robert Sabourin , George D. C. Cavalcanti

Pedestrian attribute recognition is an important multi-label classification problem. Although the convolutional neural networks are prominent in learning discriminative features from images, the data imbalance in multi-label setting for…

Computer Vision and Pattern Recognition · Computer Science 2020-05-22 Yang Hu , Xiaying Bai , Pan Zhou , Fanhua Shang , Shengmei Shen

Few-Shot Class-Incremental Learning presents an extension of the Class Incremental Learning problem where a model is faced with the problem of data scarcity while addressing the catastrophic forgetting problem. This problem remains an open…

Machine Learning · Computer Science 2024-05-13 Naeem Paeedeh , Mahardhika Pratama , Sunu Wibirama , Wolfgang Mayer , Zehong Cao , Ryszard Kowalczyk

We explore several oversampling techniques for an imbalanced multi-label classification problem, a setting often encountered when developing models for Computer-Aided Diagnosis (CADx) systems. While most CADx systems aim to optimize…

Machine Learning · Computer Science 2018-07-10 Matthew Yung , Eli T. Brown , Alexander Rasin , Jacob D. Furst , Daniela S. Raicu