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Deep Neural Networks are powerful models that attained remarkable results on a variety of tasks. These models are shown to be extremely efficient when training and test data are drawn from the same distribution. However, it is not clear how…

机器学习 · 统计学 2019-01-11 Gabi Shalev , Yossi Adi , Joseph Keshet

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…

计算机视觉与模式识别 · 计算机科学 2020-12-22 Jaehyung Kim , Jongheon Jeong , Jinwoo Shin

This paper proposes a method to use deep neural networks as end-to-end open-set classifiers. It is based on intra-class data splitting. In open-set recognition, only samples from a limited number of known classes are available for training.…

机器学习 · 计算机科学 2019-11-21 Patrick Schlachter , Yiwen Liao , Bin Yang

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

In real-world applications, as data availability increases, obtaining labeled data for machine learning (ML) projects remains challenging due to the high costs and intensive efforts required for data annotation. Many ML projects,…

机器学习 · 计算机科学 2024-12-24 Ismail Hakki Karaman , Gulser Koksal , Levent Eriskin , Salih Salihoglu

Negative sampling schemes enable efficient training given a large number of classes, by offering a means to approximate a computationally expensive loss function that takes all labels into account. In this paper, we present a new connection…

Long-tail learning has received significant attention in recent years due to the challenge it poses with extremely imbalanced datasets. In these datasets, only a few classes (known as the head classes) have an adequate number of training…

计算机视觉与模式识别 · 计算机科学 2023-10-30 Jiang-Xin Shi , Tong Wei , Yuke Xiang , Yu-Feng Li

This work addresses the task of self-supervised learning (SSL) on a long-tailed dataset that aims to learn balanced and well-separated representations for downstream tasks such as image classification. This task is crucial because the real…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Cuong Manh Hoang , Yeejin Lee , Byeongkeun Kang

Corrupted labels and class imbalance are commonly encountered in practically collected training data, which easily leads to over-fitting of deep neural networks (DNNs). Existing approaches alleviate these issues by adopting a sample…

机器学习 · 计算机科学 2022-01-05 Shenwang Jiang , Jianan Li , Ying Wang , Bo Huang , Zhang Zhang , Tingfa Xu

The learning from imbalanced data is a deeply studied problem in standard classification and, in recent times, also in multilabel classification. A handful of multilabel resampling methods have been proposed in late years, aiming to balance…

机器学习 · 计算机科学 2018-02-15 Francisco Charte , Antonio J. Rivera , María J. del Jesus , Francisco Herrera

A recurring focus of the deep learning community is towards reducing the labeling effort. Data gathering and annotation using a search engine is a simple alternative to generating a fully human-annotated and human-gathered dataset. Although…

计算机视觉与模式识别 · 计算机科学 2021-10-27 Paul Albert , Diego Ortego , Eric Arazo , Noel O'Connor , Kevin McGuinness

Learning from imbalanced data is one of the most significant challenges in real-world classification tasks. In such cases, neural networks performance is substantially impaired due to preference towards the majority class. Existing…

机器学习 · 计算机科学 2022-11-13 Bronislav Yasinnik , Moshe Salhov , Ofir Lindenbaum , Amir Averbuch

Class imbalance is a pervasive issue among classification models including deep learning, whose capacity to extract task-specific features is affected in imbalanced settings. However, the challenges of handling imbalance among a large…

机器学习 · 计算机科学 2018-10-31 Shin Ando

Sample selection is a prevalent method in learning with noisy labels, where small-loss data are typically considered as correctly labeled data. However, this method may not effectively identify clean hard examples with large losses, which…

机器学习 · 计算机科学 2023-08-29 Suqin Yuan , Lei Feng , Tongliang Liu

In recent years, the remarkable success of deep neural networks (DNNs) in computer vision is largely due to large-scale, high-quality labeled datasets. Training directly on real-world datasets with label noise may result in overfitting. The…

计算机视觉与模式识别 · 计算机科学 2025-01-09 Yuandi Zhao , Qianxi Xia , Yang Sun , Zhijie Wen , Liyan Ma , Shihui Ying

Neural Networks can perform poorly when the training label distribution is heavily imbalanced, as well as when the testing data differs from the training distribution. In order to deal with shift in the testing label distribution, which…

机器学习 · 计算机科学 2020-10-23 Junjiao Tian , Yen-Cheng Liu , Nathan Glaser , Yen-Chang Hsu , Zsolt Kira

Deep neural networks have been shown to easily overfit to biased training data with label noise or class imbalance. Meta-learning algorithms are commonly designed to alleviate this issue in the form of sample reweighting, by learning a meta…

机器学习 · 计算机科学 2020-12-11 Hongxin Wei , Lei Feng , Rundong Wang , Bo An

Active learning aims to optimize the dataset annotation process when resources are constrained. Most existing methods are designed for balanced datasets. Their practical applicability is limited by the fact that a majority of real-life…

机器学习 · 计算机科学 2022-02-02 Umang Aggarwal , Adrian Popescu , Céline Hudelot

This study is about inducing classifiers using data that is imbalanced, with a minority class being under-represented in relation to the majority classes. The first section of this research focuses on the main characteristics of data that…

机器学习 · 计算机科学 2022-10-25 Shivaditya Shivganesh , Nitin Narayanan N , Pranav Murali , Ajaykumar M

In this work, we propose to use out-of-distribution samples, i.e., unlabeled samples coming from outside the target classes, to improve few-shot learning. Specifically, we exploit the easily available out-of-distribution samples to drive…

机器学习 · 计算机科学 2022-06-13 Duong H. Le , Khoi D. Nguyen , Khoi Nguyen , Quoc-Huy Tran , Rang Nguyen , Binh-Son Hua