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相关论文: Class-Dependent Hybrid Data Augmentation for Multi…

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Class imbalance, overlap, and noise degrade data quality, reduce model reliability, and limit generalization. Although widely studied in binary classification, these issues remain underexplored in multi-class settings, where complex…

机器学习 · 计算机科学 2026-02-25 Soufiane Bacha , Laouni Djafri , Sahraoui Dhelim , Huansheng Ning

Class imbalance is a widespread challenge in NLP tasks, significantly hindering robust performance across diverse domains and applications. We introduce Hardness-Aware Meta-Resample (HAMR), a unified framework that adaptively addresses both…

计算与语言 · 计算机科学 2026-04-22 Hanshu Rao , Guangzeng Han , Xiaolei Huang

Medicare fraud poses a substantial challenge to healthcare systems, resulting in significant financial losses and undermining the quality of care provided to legitimate beneficiaries. This study investigates the use of machine learning (ML)…

机器学习 · 计算机科学 2025-02-25 Dorsa Farahmandazad , Kasra Danesh

In federated healthcare systems, Federated Class-Incremental Learning (FCIL) has emerged as a key paradigm, enabling continuous adaptive model learning among distributed clients while safeguarding data privacy. However, in practical…

机器学习 · 计算机科学 2026-03-31 Tiantian Wang , Xiang Xiang , Simon S. Du

Class-incremental learning (CIL) aims to acquire new classes over time while retaining prior knowledge, yet most setups and methods assume balanced task streams. In practice, the number of classes per task often varies significantly. We…

计算机视觉与模式识别 · 计算机科学 2026-03-12 Xiaoyan Zhang , Jiangpeng He

Different modalities hold considerable gaps in optimization trajectories, including speeds and paths, which lead to modality laziness and modality clash when jointly training multimodal models, resulting in insufficient and imbalanced…

机器学习 · 计算机科学 2025-06-17 Xiaoyu Ma , Hao Chen , Yongjian Deng

One of the most significant current discussions in the field of data mining is classifying imbalanced data. In recent years, several ways are proposed such as algorithm level (internal) approaches, data level (external) techniques, and…

机器学习 · 计算机科学 2021-06-03 Maliheh Roknizadeh , Hossein Monshizadeh Naeen

In this paper, we develop new methods for estimating average treatment effects in observational studies, focusing on settings with more than two treatment levels under unconfoundedness given pre-treatment variables. We emphasize…

统计方法学 · 统计学 2017-10-11 Shu Yang , Guido W. Imbens , Zhanglin Cui , Douglas Faries , Zbigniew Kadziola

Faltering growth among children is a nutritional problem prevalent in low to medium income countries; it is generally defined as a slower rate of growth compared to a reference healthy population of the same age and gender. As faltering is…

统计方法学 · 统计学 2019-09-18 Vincent Chin , Jarod Y. L. Lee , Louise M. Ryan , Robert Kohn , Scott A. Sisson

Current status quo in machine learning is to use static datasets of real images for training, which often come from long-tailed distributions. With the recent advances in generative models, researchers have started augmenting these static…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Reyhane Askari Hemmat , Mohammad Pezeshki , Florian Bordes , Michal Drozdzal , Adriana Romero-Soriano

Deep neural networks are powerful, massively parameterized machine learning models that have been shown to perform well in supervised learning tasks. However, very large amounts of labeled data are usually needed to train deep neural…

机器学习 · 计算机科学 2020-12-02 Hanchen Xie , Mohamed E. Hussein , Aram Galstyan , Wael Abd-Almageed

Medical image segmentation plays a crucial role in AI-assisted diagnostics, surgical planning, and treatment monitoring. Accurate and robust segmentation models are essential for enabling reliable, data-driven clinical decision making…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Sachin Dudda Nagaraju , Ashkan Moradi , Bendik Skarre Abrahamsen , Mattijs Elschot

Data augmentation forms the cornerstone of many modern machine learning training pipelines; yet, the mechanisms by which it works are not clearly understood. Much of the research on data augmentation (DA) has focused on improving existing…

机器学习 · 计算机科学 2023-04-13 Damien A. Dablain , Nitesh V. Chawla

While reinforcement learning for large language model alignment has progressed rapidly in recent years, transferring these paradigms to high-stakes medical question answering reveals a fundamental paradigm mismatch. Reinforcement Learning…

To address the challenges of imbalanced multi-class datasets typically used for rare event detection in critical cyber-physical systems, we propose an optimal, efficient, and adaptable mixed integer programming (MIP) ensemble weighting…

机器学习 · 计算机科学 2025-04-16 Georgios Tertytchny , Georgios L. Stavrinides , Maria K. Michael

In the context of continual learning, acquiring new knowledge while maintaining previous knowledge presents a significant challenge. Existing methods often use experience replay techniques that store a small portion of previous task data…

机器学习 · 计算机科学 2025-12-24 Minsu Kim , Seong-Hyeon Hwang , Steven Euijong Whang

With the rapid growth of memory and computing power, datasets are becoming increasingly complex and imbalanced. This is especially severe in the context of clinical data, where there may be one rare event for many cases in the majority…

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

Machine Learning applications have brought new insights into a secondary analysis of medical data. Machine Learning helps to develop new drugs, define populations susceptible to certain illnesses, identify predictors of many common…

机器学习 · 计算机科学 2020-12-29 YuanZheng Hu , Marina Sokolova

Multimodal learning (MML) is significantly constrained by modality imbalance, leading to suboptimal performance in practice. While existing approaches primarily focus on balancing the learning of different modalities to address this issue,…

计算机视觉与模式识别 · 计算机科学 2026-01-30 QingYuan Jiang , Longfei Huang , Yang Yang