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相关论文: Sampling Imbalanced Data with Multi-objective Bile…

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In this work, we consider the problem of Quality-Diversity (QD) optimization with multiple objectives. QD algorithms have been proposed to search for a large collection of both diverse and high-performing solutions instead of a single set…

人工智能 · 计算机科学 2022-06-01 Thomas Pierrot , Guillaume Richard , Karim Beguir , Antoine Cully

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

Pattern recognition applications often suffer from skewed data distributions between classes, which may vary during operations w.r.t. the design data. Two-class classification systems designed using skewed data tend to recognize the…

机器学习 · 计算机科学 2019-12-02 Roghayeh Soleymani , Eric Granger , Giorgio Fumera

Multi-label classification poses challenges due to imbalanced and noisy labels in training data. We propose a unified data augmentation method, named BalanceMix, to address these challenges. Our approach includes two samplers for imbalanced…

机器学习 · 计算机科学 2023-12-13 Hwanjun Song , Minseok Kim , Jae-Gil Lee

Text classification is the task of automatically assigning text documents correct labels from a predefined set of categories. In real-life (text) classification tasks, observations and misclassification costs are often unevenly distributed…

机器学习 · 计算机科学 2025-09-03 Aleksi Avela , Pauliina Ilmonen

Class imbalance is a challenging issue in practical classification problems for deep learning models as well as traditional models. Traditionally successful countermeasures such as synthetic over-sampling have had limited success with…

机器学习 · 计算机科学 2017-07-14 Shin Ando , Chun-Yuan Huang

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

In binary classification, imbalance refers to situations in which one class is heavily under-represented. This issue is due to either a data collection process or because one class is indeed rare in a population. Imbalanced classification…

统计方法学 · 统计学 2022-01-07 Arezou Mojiri , Abbas Khalili , Ali Zeinal Hamadani

The two-sample test is a fundamental problem in statistics with a wide range of applications. In the realm of high-dimensional data, nonparametric methods have gained prominence due to their flexibility and minimal distributional…

统计方法学 · 统计学 2024-12-24 Zexi Cai , Wenbo Fei , Doudou Zhou

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

Data imbalance is common in production data, where controlled production settings require data to fall within a narrow range of variation and data are collected with quality assessment in mind, rather than data analytic insights. This…

机器学习 · 统计学 2021-12-17 Rune D. Kjærsgaard , Manja G. Grønberg , Line K. H. Clemmensen

The task of roof damage classification and segmentation from overhead imagery presents unique challenges. In this work we choose to address the challenge posed due to strong class imbalance. We propose four distinct techniques that aim at…

计算机视觉与模式识别 · 计算机科学 2020-11-20 Jean-Baptiste Boin , Nat Roth , Jigar Doshi , Pablo Llueca , Nicolas Borensztein

Dealing with severe class imbalance poses a major challenge for real-world applications, especially when the accurate classification and generalization of minority classes is of primary interest. In computer vision, learning from long…

计算机视觉与模式识别 · 计算机科学 2021-11-22 Zidi Xiu , Junya Chen , Ricardo Henao , Benjamin Goldstein , Lawrence Carin , Chenyang Tao

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…

机器学习 · 计算机科学 2018-07-10 Matthew Yung , Eli T. Brown , Alexander Rasin , Jacob D. Furst , Daniela S. Raicu

This paper introduces a novel oversampling technique designed to improve classification performance on imbalanced datasets. The proposed method enhances the traditional SMOTE algorithm by incorporating convex combination and kernel-based…

机器学习 · 计算机科学 2025-04-15 Wenjie Li , Sibo Zhu , Zhijian Li , Hanlin Wang

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,…

机器学习 · 计算机科学 2023-11-06 Wei-Chao Cheng , Tan-Ha Mai , Hsuan-Tien Lin

A common issue for classification in scientific research and industry is the existence of imbalanced classes. When sample sizes of different classes are imbalanced in training data, naively implementing a classification method often leads…

统计方法学 · 统计学 2021-07-02 Yang Feng , Min Zhou , Xin Tong

Data imbalance presents a significant challenge in various machine learning (ML) tasks, particularly named entity recognition (NER) within natural language processing (NLP). NER exhibits a data imbalance with a long-tail distribution,…

计算与语言 · 计算机科学 2025-01-22 Sota Nemoto , Shunsuke Kitada , Hitoshi Iyatomi

Many real-world applications reveal difficulties in learning classifiers from imbalanced data. The rising big data era has been witnessing more classification tasks with large-scale but extremely imbalance and low-quality datasets. Most of…

机器学习 · 计算机科学 2020-10-20 Zhining Liu , Wei Cao , Zhifeng Gao , Jiang Bian , Hechang Chen , Yi Chang , Tie-Yan Liu

Subsampling is a widely used and effective approach for addressing the computational challenges posed by massive datasets. Substantial progress has been made in developing non-uniform, probability-based subsampling schemes that prioritize…

统计方法学 · 统计学 2026-05-07 Dingyi Wang , Haiying Wang , Qingpei Hu