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Data augmentation is an effective way to diversify corpora in machine translation, but previous methods may introduce semantic inconsistency between original and augmented data because of irreversible operations and random subword sampling…

计算与语言 · 计算机科学 2025-02-21 Jiashu Yao , Heyan Huang , Zeming Liu , Yuhang Guo

Deep learning has revolutionized the performance of classification, but meanwhile demands sufficient labeled data for training. Given insufficient data, while many techniques have been developed to help combat overfitting, the challenge…

计算机视觉与模式识别 · 计算机科学 2018-09-05 Xiaofeng Zhang , Zhangyang Wang , Dong Liu , Qing Ling

Automated data augmentation, which aims at engineering augmentation policy automatically, recently draw a growing research interest. Many previous auto-augmentation methods utilized a Density Matching strategy by evaluating policies in…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Jianwei Zhang , Dong Li , Lituan Wang , Lei Zhang

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…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Teerath Kumar , Alessandra Mileo , Rob Brennan , Malika Bendechache

Deep learning has become a popular tool for medical image analysis, but the limited availability of training data remains a major challenge, particularly in the medical field where data acquisition can be costly and subject to privacy…

图像与视频处理 · 电气工程与系统科学 2024-06-11 Aghiles Kebaili , Jérôme Lapuyade-Lahorgue , Su Ruan

Deep Convolutional Neural Networks have made an incredible progress in many Computer Vision tasks. This progress, however, often relies on the availability of large amounts of the training data, required to prevent over-fitting, which in…

计算机视觉与模式识别 · 计算机科学 2023-02-28 Dominik Lewy , Jacek Mańdziuk

Data augmentations are important in training high-performance 3D object detectors for point clouds. Despite recent efforts on designing new data augmentations, perhaps surprisingly, most state-of-the-art 3D detectors only use a few simple…

计算机视觉与模式识别 · 计算机科学 2022-10-26 Zhaoqi Leng , Guowang Li , Chenxi Liu , Ekin Dogus Cubuk , Pei Sun , Tong He , Dragomir Anguelov , Mingxing Tan

The sequential recommendation aims at predicting the next items in user behaviors, which can be solved by characterizing item relationships in sequences. Due to the data sparsity and noise issues in sequences, a new self-supervised learning…

机器学习 · 计算机科学 2022-03-30 Zhiwei Liu , Yongjun Chen , Jia Li , Man Luo , Philip S. Yu , Caiming Xiong

Data augmentation methods are indispensable heuristics to boost the performance of deep neural networks, especially in image recognition tasks. Recently, several studies have shown that augmentation strategies found by search algorithms…

计算机视觉与模式识别 · 计算机科学 2019-11-19 Ryuichiro Hataya , Jan Zdenek , Kazuki Yoshizoe , Hideki Nakayama

Unsupervised domain adaptation (UDA) aims to transfer and adapt knowledge from a labeled source domain to an unlabeled target domain. Traditionally, subspace-based methods form an important class of solutions to this problem. Despite their…

机器学习 · 计算机科学 2022-01-07 Kowshik Thopalli , Jayaraman J Thiagarajan , Rushil Anirudh , Pavan K Turaga

Training a deep learning model to classify histopathological images is challenging, because of the color and shape variability of the cells and tissues, and the reduced amount of available data, which does not allow proper learning of those…

计算机视觉与模式识别 · 计算机科学 2023-07-25 Saypraseuth Mounsaveng , Issam Laradji , David Vázquez , Marco Perdersoli , Ismail Ben Ayed

Data augmentation is a key element of deep learning pipelines, as it informs the network during training about transformations of the input data that keep the label unchanged. Manually finding adequate augmentation methods and parameters…

机器学习 · 计算机科学 2022-02-09 Cédric Rommel , Thomas Moreau , Joseph Paillard , Alexandre Gramfort

Data augmentation is often used to enlarge datasets with synthetic samples generated in accordance with the underlying data distribution. To enable a wider range of augmentations, we explore negative data augmentation strategies (NDA)that…

计算机视觉与模式识别 · 计算机科学 2021-02-11 Abhishek Sinha , Kumar Ayush , Jiaming Song , Burak Uzkent , Hongxia Jin , Stefano Ermon

Deep neural networks are increasingly being used to detect and diagnose medical conditions using medical imaging. Despite their utility, these models are highly vulnerable to adversarial attacks and distribution shifts, which can affect…

图像与视频处理 · 电气工程与系统科学 2025-06-23 Josué Martínez-Martínez , Olivia Brown , Mostafa Karami , Sheida Nabavi

Data augmentation (DA) is a crucial technique for enhancing the sample efficiency of visual reinforcement learning (RL) algorithms. Notably, employing simple observation transformations alone can yield outstanding performance without extra…

机器学习 · 计算机科学 2023-10-30 Guozheng Ma , Linrui Zhang , Haoyu Wang , Lu Li , Zilin Wang , Zhen Wang , Li Shen , Xueqian Wang , Dacheng Tao

Self-supervised contrastive learning heavily relies on the view variance brought by data augmentation, so that it can learn a view-invariant pre-trained representation. Beyond increasing the view variance for contrast, this work focuses on…

计算机视觉与模式识别 · 计算机科学 2024-10-17 Yong Zhang , Rui Zhu , Shifeng Zhang , Xu Zhou , Shifeng Chen , Xiaofan Chen

Data augmentation (DA) has been widely leveraged in computer vision to alleviate data shortage, while its application in medical imaging faces multiple challenges. The prevalent DA approaches in medical image analysis encompass conventional…

图像与视频处理 · 电气工程与系统科学 2026-03-26 Zhaoshan Liu , Qiujie Lv , Yifan Li , Ziduo Yang , Lei Shen

Discriminative learning, restorative learning, and adversarial learning have proven beneficial for self-supervised learning schemes in computer vision and medical imaging. Existing efforts, however, omit their synergistic effects on each…

计算机视觉与模式识别 · 计算机科学 2022-04-25 Fatemeh Haghighi , Mohammad Reza Hosseinzadeh Taher , Michael B. Gotway , Jianming Liang

Rotation is frequently listed as a candidate for data augmentation in contrastive learning but seldom provides satisfactory improvements. We argue that this is because the rotated image is always treated as either positive or negative. The…

计算机视觉与模式识别 · 计算机科学 2022-11-28 Atsuyuki Miyai , Qing Yu , Daiki Ikami , Go Irie , Kiyoharu Aizawa

Existing automatic data augmentation (DA) methods either ignore updating DA's parameters according to the target model's state during training or adopt update strategies that are not effective enough. In this work, we design a novel data…

计算机视觉与模式识别 · 计算机科学 2023-05-11 Xiaogang Xu , Hengshuang Zhao