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Deep learning models tend to memorize training data, which hurts their ability to generalize to under-represented classes. We empirically study a convolutional neural network's internal representation of imbalanced image data and measure…

机器学习 · 计算机科学 2022-10-19 Damien Dablain , Colin Bellinger , Bartosz Krawczyk , Nitesh Chawla

We consider whether deep convolutional networks (CNNs) can represent decision functions with similar accuracy as recurrent networks such as LSTMs. First, we show that a deep CNN with an architecture inspired by the models recently…

Deep neural network models are robust to a limited amount of label noise, but their ability to memorise noisy labels in high noise rate problems is still an open issue. The most competitive noisy-label learning algorithms rely on a 2-stage…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Filipe R. Cordeiro , Ragav Sachdeva , Vasileios Belagiannis , Ian Reid , Gustavo Carneiro

Deep neural networks have proven to be highly effective when large amounts of data with clean labels are available. However, their performance degrades when training data contains noisy labels, leading to poor generalization on the test…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Fahimeh Fooladgar , Minh Nguyen Nhat To , Parvin Mousavi , Purang Abolmaesumi

The detection of cyber-attacks in computer networks is a crucial and ongoing research challenge. Machine learning-based attack classification offers a promising solution, as these models can be continuously updated with new data, enhancing…

密码学与安全 · 计算机科学 2024-08-30 Maximilian Wolf , Dieter Landes , Andreas Hotho , Daniel Schlör

Class-imbalanced learning (CIL) on tabular data is important in many real-world applications where the minority class holds the critical but rare outcomes. In this paper, we present CLIMB, a comprehensive benchmark for class-imbalanced…

机器学习 · 计算机科学 2025-10-21 Zhining Liu , Zihao Li , Ze Yang , Tianxin Wei , Jian Kang , Yada Zhu , Hendrik Hamann , Jingrui He , Hanghang Tong

Although many real-world applications, such as disease prediction, and fault detection suffer from class imbalance, most existing graph-based classification methods ignore the skewness of the distribution of classes; therefore, tend to be…

机器学习 · 计算机科学 2024-07-01 Mahdi Mohammadizadeh , Arash Mozhdehi , Yani Ioannou , Xin Wang

Handling imbalance in class distribution when building a classifier over tabular data has been a problem of long-standing interest. One popular approach is augmenting the training dataset with synthetically generated data. While classical…

机器学习 · 计算机科学 2025-02-20 Annie D'souza , Swetha M , Sunita Sarawagi

A machine learning model is calibrated if its predicted probability for an outcome matches the observed frequency for that outcome conditional on the model prediction. This property has become increasingly important as the impact of machine…

机器学习 · 计算机科学 2025-02-25 Muthu Chidambaram , Rong Ge

Active learning aims to reduce the labeling effort that is required to train algorithms by learning an acquisition function selecting the most relevant data for which a label should be requested from a large unlabeled data pool. Active…

计算机视觉与模式识别 · 计算机科学 2021-10-12 Javad Zolfaghari Bengar , Joost van de Weijer , Laura Lopez Fuentes , Bogdan Raducanu

Boosting is a learning scheme that combines weak prediction rules to produce a strong composite estimator, with the underlying intuition that one can obtain accurate prediction rules by combining "rough" ones. Although boosting is proved to…

机器学习 · 计算机科学 2015-05-07 Shaobo Lin , Yao Wang , Lin Xu

Deep learning enables impressive performance in image recognition using large-scale artificially-balanced datasets. However, real-world datasets exhibit highly class-imbalanced distributions, yielding two main challenges: relative imbalance…

计算机视觉与模式识别 · 计算机科学 2020-10-20 Saurabh Sharma , Ning Yu , Mario Fritz , Bernt Schiele

Class imbalance severely impacts machine learning performance on minority classes in real-world applications. While various solutions exist, active learning offers a fundamental fix by strategically collecting balanced, informative labeled…

机器学习 · 计算机科学 2025-06-13 Shyam Nuggehalli , Jifan Zhang , Lalit Jain , Robert Nowak

Class imbalance is prevalent in real-world node classification tasks and poses great challenges for graph learning models. Most existing studies are rooted in a class-rebalancing (CR) perspective and address class imbalance with class-wise…

Imbalanced data occurs in a wide range of scenarios. The skewed distribution of the target variable elicits bias in machine learning algorithms. One of the popular methods to combat imbalanced data is to artificially balance the data…

机器学习 · 计算机科学 2021-10-26 Firuz Kamalov , Ashraf Elnagar

Deep neural networks (DNNs) have demonstrated promising results in various complex tasks. However, current DNNs encounter challenges with over-parameterization, especially when there is limited training data available. To enhance the…

机器学习 · 计算机科学 2023-08-22 Xingyu Li , Bo Tang

Federated Learning (FL) enables collaborative model training across decentralized devices while preserving data privacy. However, real-world FL deployments face critical challenges such as data imbalances, including label noise and non-IID…

机器学习 · 计算机科学 2026-01-13 Siqi Zhu , Joshua D. Kaggie

Crash data is often greatly imbalanced, with the majority of crashes being non-fatal crashes, and only a small number being fatal crashes due to their rarity. Such data imbalance issue poses a challenge for crash severity modeling since it…

机器学习 · 计算机科学 2024-04-04 Junlan Chen , Ziyuan Pu , Nan Zheng , Xiao Wen , Hongliang Ding , Xiucheng Guo

Although deep neural networks (DNNs) achieve high predictive accuracy, their confidence estimates are often unreliable, potentially compromising user trust in their decisions. This has motivated research on calibrated models, where…

机器学习 · 计算机科学 2026-05-25 Ramya Hebbalaguppe , Ajay Shastry , Soumya Suvra Ghosal , Chetan Arora

Recent works have shown that deep neural networks can achieve super-human performance in a wide range of image classification tasks in the medical imaging domain. However, these works have primarily focused on classification accuracy,…

计算机视觉与模式识别 · 计算机科学 2020-09-10 Gongbo Liang , Yu Zhang , Xiaoqin Wang , Nathan Jacobs