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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

End-to-end planning systems for autonomous driving are rapidly improving, especially in closed-loop simulation environments like CARLA. Many such driving systems either do not consider uncertainty as part of the plan itself or obtain it by…

机器人学 · 计算机科学 2026-05-25 Florian Wintel , Sigmund H. Høeg , Gabriel Kiss , Frank Lindseth

Imbalance in the proportion of training samples belonging to different classes often poses performance degradation of conventional classifiers. This is primarily due to the tendency of the classifier to be biased towards the majority…

机器学习 · 计算机科学 2021-03-30 Ayush Tripathi , Rupayan Chakraborty , Sunil Kumar Kopparapu

Random number generation plays a vital role in cryptographic systems and computational applications, where uniformity, unpredictability, and robustness are essential. This paper presents the Entropy Mixing Network (EMN), a novel hybrid…

Despite consistent advancement in powerful deep learning techniques in recent years, large amounts of training data are still necessary for the models to avoid overfitting. Synthetic datasets using generative adversarial networks (GAN) have…

声音 · 计算机科学 2023-04-05 Yunhao Chen , Yunjie Zhu , Zihui Yan , Jianlu Shen , Zhen Ren , Yifan Huang

Ensemble learning is a standard approach to building machine learning systems that capture complex phenomena in real-world data. An important aspect of these systems is the complete and valid quantification of model uncertainty. We…

机器学习 · 计算机科学 2019-11-12 Jeremiah Zhe Liu , John Paisley , Marianthi-Anna Kioumourtzoglou , Brent Coull

Recent advances in a generative neural network model extend the development of data augmentation methods. However, the augmentation methods based on the modern generative models fail to achieve notable performance for class imbalance data…

机器学习 · 计算机科学 2025-07-08 Sungchul Hong , Seunghwan An , Jong-June Jeon

Test-time adaptation (TTA) methods, which generally rely on the model's predictions (e.g., entropy minimization) to adapt the source pretrained model to the unlabeled target domain, suffer from noisy signals originating from 1) incorrect or…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Jungsoo Lee , Debasmit Das , Jaegul Choo , Sungha Choi

Text classification is a popular topic of natural language processing, which has currently attracted numerous research efforts worldwide. The significant increase of data in social media requires the vast attention of researchers to analyze…

计算与语言 · 计算机科学 2020-09-30 Huy Duc Huynh , Hang Thi-Thuy Do , Kiet Van Nguyen , Ngan Luu-Thuy Nguyen

The ensemble of deep neural networks has been shown, both theoretically and empirically, to improve generalization accuracy on the unseen test set. However, the high training cost hinders its efficiency since we need a sufficient number of…

机器学习 · 计算机科学 2021-12-28 Wentao Zhang , Jiawei Jiang , Yingxia Shao , Bin Cui

Sample selection improves the efficiency and effectiveness of machine learning models by providing informative and representative samples. Typically, samples can be modeled as a sample graph, where nodes are samples and edges represent…

机器学习 · 计算机科学 2025-03-04 Tianchi Xie , Jiangning Zhu , Guozu Ma , Minzhi Lin , Wei Chen , Weikai Yang , Shixia Liu

Ensemble methods exploit the availability of a given number of classifiers or detectors trained in single or multiple source domains and tasks to address machine learning problems such as domain adaptation or multi-source transfer learning.…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Erik Isai Valle Salgado , Chen Li , Yaqi Han , Linchao Shi , Xinghui Li

Efficient probability density estimation is a core challenge in statistical machine learning. Tensor-based probabilistic graph methods address interpretability and stability concerns encountered in neural network approaches. However, a…

机器学习 · 计算机科学 2023-12-14 Ruituo Wu , Jiani Liu , Ce Zhu , Anh-Huy Phan , Ivan V. Oseledets , Yipeng Liu

Empirical risk minimization (ERM) with a computationally feasible surrogate loss is a widely accepted approach for classification. Notably, the convexity and calibration (CC) properties of a loss function ensure consistency of ERM in…

机器学习 · 统计学 2024-09-05 Ben Dai

Stop location detection, within human mobility studies, has an impacts in multiple fields including urban planning, transport network design, epidemiological modeling, and socio-economic segregation analysis. However, it remains a…

机器学习 · 计算机科学 2024-07-17 Margherita Bertè , Rashid Ibrahimli , Lars Koopmans , Pablo Valgañón , Nicola Zomer , Davide Colombi

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

Imbalanced datasets, where one class significantly outnumbers others, remain a persistent challenge in machine learning, often biasing predictions toward the majority class and degrading classifier performance. This paper provides a…

Collecting and annotating datasets for pixel-level semantic segmentation tasks are highly labor-intensive. Data augmentation provides a viable solution by enhancing model generalization without additional real-world data collection.…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Huy Che , Dinh-Duy Phan , Duc-Khai Lam

Traffic forecasting is fundamental to intelligent transportation systems, enabling congestion mitigation and emission reduction in increasingly complex urban environments. While recent graph neural network approaches have advanced spatial…

人工智能 · 计算机科学 2025-10-10 Walid Guettala , Yufan Zhao , László Gulyás

The US Census Bureau has collected two rounds of experimental data from the Commodity Flow Survey, providing shipment-level characteristics of nationwide commodity movements, published in 2012 (i.e., Public Use Microdata) and in 2017 (i.e.,…

机器学习 · 计算机科学 2024-02-13 Diyi Liu , Hyeonsup Lim , Majbah Uddin , Yuandong Liu , Lee D. Han , Ho-ling Hwang , Shih-Miao Chin