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Scarcity of training data is one of the prominent problems for deep networks which require large amounts data. Data augmentation is a widely used method to increase the number of training samples and their variations. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2020-12-10 Hilmi Kumdakcı , Cihan Öngün , Alptekin Temizel

Multimode fiber~(MMF) imaging using deep learning has high potential to produce compact, minimally invasive endoscopic systems. Nevertheless, it relies on large, diverse real-world medical data, whose availability is limited by privacy…

Optics · Physics 2025-11-25 Jawaria Maqbool , M. Imran Cheema

Data augmentation is a key element for training accurate models by reducing overfitting and improving generalization. For image classification, the most popular data augmentation techniques range from simple photometric and geometrical…

Machine Learning · Computer Science 2022-11-02 Avery Ma , Nikita Dvornik , Ran Zhang , Leila Pishdad , Konstantinos G. Derpanis , Afsaneh Fazly

We consider quantitative analyses of spectral data using laser-induced breakdown spectroscopy. We address the small size of training data available, and the validation of the predictions during inference on unknown data. For the purpose, we…

In this work, we propose data augmentation via pairwise mixup across subgroups to improve group fairness. Many real-world applications of machine learning systems exhibit biases across certain groups due to under-representation or training…

Machine Learning · Statistics 2023-09-14 Madeline Navarro , Camille Little , Genevera I. Allen , Santiago Segarra

Few-shot learning (FSL) challenges model generalization to novel classes based on just a few shots of labeled examples, a testbed where traditional test-time augmentations fail to be effective. We introduce 1S-DAug, a one-shot generative…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Yunwei Bai , Ying Kiat Tan , Yao Shu , Tsuhan Chen

The scarcity of high-quality labeled data in sensor-based Human Activity Recognition (HAR) hinders model performance and limits generalization across real-world scenarios. Data augmentation is a key strategy to mitigate this issue by…

Machine Learning · Computer Science 2025-08-25 Nobuyuki Oishi , Philip Birch , Daniel Roggen , Paula Lago

Data augmentation is an effective technique for improving the accuracy of modern image classifiers. However, current data augmentation implementations are manually designed. In this paper, we describe a simple procedure called AutoAugment…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Ekin D. Cubuk , Barret Zoph , Dandelion Mane , Vijay Vasudevan , Quoc V. Le

We provide universality results that quantify how data augmentation affects the variance and limiting distribution of estimates through simple surrogates, and analyze several specific models in detail. The results confirm some observations…

Machine Learning · Computer Science 2025-12-03 Kevin Han Huang , Peter Orbanz , Morgane Austern

Data augmentation is a popular pre-processing trick to improve generalization accuracy. It is believed that by processing augmented inputs in tandem with the original ones, the model learns a more robust set of features which are shared…

Machine Learning · Computer Science 2020-07-10 Vihari Piratla , Shiv Shankar

In this paper, we reveal the two sides of data augmentation: enhancements in closed-set recognition correlate with a significant decrease in open-set recognition. Through empirical investigation, we find that multi-sample-based…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Yunbing Jia , Xiaoyu Kong , Fan Tang , Yixing Gao , Weiming Dong , Yi Yang

In this work, we shed light on different data augmentation techniques commonly used in Light Detection and Ranging (LiDAR) based 3D Object Detection. For the bulk of our experiments, we utilize the well known PointPillars pipeline and the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-01 Martin Hahner , Dengxin Dai , Alexander Liniger , Luc Van Gool

In the ever-evolving landscape of social network advertising, the volume and accuracy of data play a critical role in the performance of predictive models. However, the development of robust predictive algorithms is often hampered by the…

Social and Information Networks · Computer Science 2024-11-13 Qikai Yang , Panfeng Li , Xinhe Xu , Zhicheng Ding , Wenjing Zhou , Yi Nian

Single photon sources (SPSs) are an essential resource for many quantum information technologies. We demonstrate how the inclusion of time-delayed coherent feedback in a scalable waveguide system, can significantly improve the two key SPS…

Quantum Physics · Physics 2024-10-08 Gavin Crowder , Lora Ramunno , Stephen Hughes

Imbalanced classification often causes standard training procedures to prioritize the majority class and perform poorly on rare but important cases. A classic and widely used remedy is to augment the minority class with synthetic samples,…

Machine Learning · Statistics 2026-03-10 Zhengchi Ma , Anru R. Zhang

The estimation and utilization of photometric redshift probability density functions (photo-$z$ PDFs) has become increasingly important over the last few years and currently there exist a wide variety of algorithms to compute photo-$z$'s,…

Cosmology and Nongalactic Astrophysics · Physics 2014-06-05 M. Carrasco Kind , R. J. Brunner

Data augmentation is known to contribute significantly to the robustness of machine learning models. In most instances, data augmentation is utilized during the training phase. Test-Time Augmentation (TTA) is a technique that instead…

Machine Learning · Statistics 2024-09-20 Masanari Kimura , Howard Bondell

Recent advances in data augmentation enable one to translate images by learning the mapping between a source domain and a target domain. Existing methods tend to learn the distributions by training a model on a variety of datasets, with…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Boyi Li , Yin Cui , Tsung-Yi Lin , Serge Belongie

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

Solving image classification tasks given small training datasets remains an open challenge for modern computer vision. Aggressive data augmentation and generative models are among the most straightforward approaches to overcoming the lack…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Lorenzo Brigato , Stavroula Mougiakakou