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In supervised machine learning (SML) research, large training datasets are essential for valid results. However, obtaining primary data in learning analytics (LA) is challenging. Data augmentation can address this by expanding and…

Machine Learning · Computer Science 2024-12-04 Valdemar Švábenský , Conrad Borchers , Elizabeth B. Cloude , Atsushi Shimada

The ability of the deep learning model to recognize when a sample falls outside its learned distribution is critical for safe and reliable deployment. Recent state-of-the-art out-of-distribution (OOD) detection methods leverage activation…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Sudarshan Regmi

Scaling laws dictate that the performance of AI models is proportional to the amount of available data. Data augmentation is a promising solution to expanding the dataset size. Traditional approaches focused on augmentation using rotation,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Fazle Rahat , M Shifat Hossain , Md Rubel Ahmed , Sumit Kumar Jha , Rickard Ewetz

Class imbalance problems frequently occur in real-world tasks, and conventional deep learning algorithms are well known for performance degradation on imbalanced training datasets. To mitigate this problem, many approaches have aimed to…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Sumyeong Ahn , Jongwoo Ko , Se-Young Yun

Simple data augmentation techniques, such as rotations and flips, are widely used to enhance the generalization power of computer vision models. However, these techniques often fail to modify high-level semantic attributes of a class. To…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Tobias Lingenberg , Markus Reuter , Gopika Sudhakaran , Dominik Gojny , Stefan Roth , Simone Schaub-Meyer

Deep learning has achieved remarkable results in many computer vision tasks. Deep neural networks typically rely on large amounts of training data to avoid overfitting. However, labeled data for real-world applications may be limited. By…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Suorong Yang , Weikang Xiao , Mengchen Zhang , Suhan Guo , Jian Zhao , Furao Shen

Label noise is common in large real-world datasets, and its presence harms the training process of deep neural networks. Although several works have focused on the training strategies to address this problem, there are few studies that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Emeson Santana , Gustavo Carneiro , Filipe R. Cordeiro

Deep Learning (DL) methods have emerged as one of the most powerful tools for functional approximation and prediction. While the representation properties of DL have been well studied, uncertainty quantification remains challenging and…

Machine Learning · Statistics 2022-10-25 Yuexi Wang , Nicholas G. Polson , Vadim O. Sokolov

Data augmentation is widely used for machine learning; however, an effective method to apply data augmentation has not been established even though it includes several factors that should be tuned carefully. One such factor is sample…

Machine Learning · Computer Science 2020-10-30 Tomoumi Takase , Ryo Karakida , Hideki Asoh

In recent years, deep learning has achieved remarkable achievements in many fields, including computer vision, natural language processing, speech recognition and others. Adequate training data is the key to ensure the effectiveness of the…

Machine Learning · Computer Science 2019-05-24 Chunxu Zhang , Jiaxu Cui , Bo Yang

Recurrent Neural Networks (RNNs) have emerged as an interesting alternative to conventional material modeling approaches, particularly for nonlinear path dependent materials. Remarkable computational enhancements are obtained using RNNs…

Computational Engineering, Finance, and Science · Computer Science 2024-09-05 Petter Uvdal , Mohsen Mirkhalaf

In offline reinforcement learning (RL), an RL agent learns to solve a task using only a fixed dataset of previously collected data. While offline RL has been successful in learning real-world robot control policies, it typically requires…

Machine Learning · Computer Science 2024-08-09 Nicholas E. Corrado , Yuxiao Qu , John U. Balis , Adam Labiosa , Josiah P. Hanna

Data Augmentation (DA) has become a critical approach in Time Series Classification (TSC), primarily for its capacity to expand training datasets, enhance model robustness, introduce diversity, and reduce overfitting. However, the current…

Machine Learning · Computer Science 2025-07-01 Zijun Gao , Haibao Liu , Lingbo Li

Large language models (LLMs) have shown remarkable effectiveness across various domains, with data augmentation methods utilizing GPT for synthetic data generation becoming prevalent. However, the quality and utility of augmented data…

Computation and Language · Computer Science 2025-01-27 Zeao Tu , Xiangdi Meng , Yu He , Zihan Yao , Tianyu Qi , Jun Liu , Ming Li

Data augmentation has been actively studied for robust neural networks. Most of the recent data augmentation methods focus on augmenting datasets during the training phase. At the testing phase, simple transformations are still widely used…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Ildoo Kim , Younghoon Kim , Sungwoong Kim

Deep learning (DL) algorithms have shown significant performance in various computer vision tasks. However, having limited labelled data lead to a network overfitting problem, where network performance is bad on unseen data as compared to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Teerath Kumar , Alessandra Mileo , Rob Brennan , Malika Bendechache

Data augmentation is a series of techniques that generate high-quality artificial data by manipulating existing data samples. By leveraging data augmentation techniques, AI models can achieve significantly improved applicability in tasks…

Machine Learning · Computer Science 2025-10-16 Zaitian Wang , Pengfei Wang , Kunpeng Liu , Pengyang Wang , Yanjie Fu , Chang-Tien Lu , Charu C. Aggarwal , Jian Pei , Yuanchun Zhou

Deep learning techniques are often criticized to heavily depend on a large quantity of labeled data. This problem is even more challenging in medical image analysis where the annotator expertise is often scarce. We propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Florian Dubost , Gerda Bortsova , Hieab Adams , M. Arfan Ikram , Wiro Niessen , Meike Vernooij , Marleen de Bruijne

Multimodal models often over-rely on dominant modalities, failing to achieve optimal performance. While prior work focuses on modifying training objectives or optimization procedures, data-centric solutions remain underexplored. We propose…

Machine Learning · Computer Science 2025-10-01 Seong-Hyeon Hwang , Soyoung Choi , Steven Euijong Whang

This paper proposes a method for OOD detection. Questioning the premise of previous studies that ID and OOD samples are separated distinctly, we consider samples lying in the intermediate of the two and use them for training a network. We…

Computer Vision and Pattern Recognition · Computer Science 2021-01-08 Engkarat Techapanurak , Anh-Chuong Dang , Takayuki Okatani