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Data augmentation is an effective technique to improve the generalization of deep neural networks. Recently, AutoAugment proposed a well-designed search space and a search algorithm that automatically finds augmentation policies in a…

Computer Vision and Pattern Recognition · Computer Science 2021-10-08 Chih-Yang Chen , Che-Han Chang

Data augmentation is a ubiquitous technique used to provide robustness to automatic speech recognition (ASR) training. However, even as so much of the ASR training process has become automated and more "end-to-end", the data augmentation…

We examine the effect of data augmentation for training of language models for speech recognition. We compare augmentation based on global error statistics with one based on per-word unigram statistics of ASR errors and observe that it is…

Computation and Language · Computer Science 2020-11-13 Karel Beneš , Lukáš Burget

Artificial Neural Networks (ANNs) are known as state-of-the-art techniques in Machine Learning (ML) and have achieved outstanding results in data-intensive applications, such as recognition, classification, and segmentation. These networks…

Machine Learning · Computer Science 2020-12-08 Pooneh Safayenikoo , Ismail Akturk

One of the most critical problems in weight-sharing neural architecture search is the evaluation of candidate models within a predefined search space. In practice, a one-shot supernet is trained to serve as an evaluator. A faithful ranking…

Machine Learning · Computer Science 2021-07-29 Xiangxiang Chu , Bo Zhang , Ruijun Xu

Deep learning models with large learning capacities often overfit to medical imaging datasets. This is because training sets are often relatively small due to the significant time and financial costs incurred in medical data acquisition and…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Lok Hin Lee , Yuan Gao , J. Alison Noble

The common pipeline of training deep neural networks consists of several building blocks such as data augmentation and network architecture selection. AutoML is a research field that aims at automatically designing those parts, but most…

Machine Learning · Computer Science 2021-01-13 Taiga Kashima , Yoshihiro Yamada , Shunta Saito

A key challenge in leveraging data augmentation for neural network training is choosing an effective augmentation policy from a large search space of candidate operations. Properly chosen augmentation policies can lead to significant…

Computer Vision and Pattern Recognition · Computer Science 2019-05-15 Daniel Ho , Eric Liang , Ion Stoica , Pieter Abbeel , Xi Chen

Automatic data augmentation (AutoDA) plays an important role in enhancing the generalization of neural networks. However, mainstream AutoDA methods often encounter two challenges: either the search process is excessively time-consuming,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Anqi Xiao , Weichen Yu , Hongyuan Yu

Data augmentation is a technique to generate new training data based on existing data. We evaluate the simple and cost-effective method of concatenating the original data examples to build new training instances. Continued training with…

Computation and Language · Computer Science 2023-06-12 Tsz Kin Lam , Shigehiko Schamoni , Stefan Riezler

Aiming to produce sufficient and diverse training samples, data augmentation has been demonstrated for its effectiveness in training deep models. Regarding that the criterion of the best augmentation is challenging to define, we in this…

Computer Vision and Pattern Recognition · Computer Science 2019-10-23 Yinghuan Shi , Tiexin Qin , Yong Liu , Jiwen Lu , Yang Gao , Dinggang Shen

Recently, a number of new Semi-Supervised Learning methods have emerged. As the accuracy for ImageNet and similar datasets increased over time, the performance on tasks beyond the classification of natural images is yet to be explored. Most…

Computer Vision and Pattern Recognition · Computer Science 2022-08-04 Tim Frommknecht , Pedro Alves Zipf , Quanfu Fan , Nina Shvetsova , Hilde Kuehne

Large scale image dataset and deep convolutional neural network (DCNN) are two primary driving forces for the rapid progress made in generic object recognition tasks in recent years. While lots of network architectures have been…

Computer Vision and Pattern Recognition · Computer Science 2018-04-17 Yalong Bai , Kuiyuan Yang , Tao Mei , Wei-Ying Ma , Tiejun Zhao

With the success of deep neural networks, Neural Architecture Search (NAS) as a way of automatic model design has attracted wide attention. As training every child model from scratch is very time-consuming, recent works leverage…

Machine Learning · Computer Science 2020-01-07 Yuge Zhang , Zejun Lin , Junyang Jiang , Quanlu Zhang , Yujing Wang , Hui Xue , Chen Zhang , Yaming Yang

Automatic data augmentation (AutoAugment) strategies are indispensable in supervised data-efficient training protocols of vision transformers, and have led to state-of-the-art results in supervised learning. Despite the success, its…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Tao Tang , Changlin Li , Guangrun Wang , Kaicheng Yu , Xiaojun Chang , Xiaodan Liang

It is no secret amongst deep learning researchers that finding the optimal data augmentation strategy during training can mean the difference between state-of-the-art performance and a run-of-the-mill result. To that end, the community has…

Machine Learning · Computer Science 2023-07-17 Xiaomeng Dong , Michael Potter , Gaurav Kumar , Yun-Chan Tsai , V. Ratna Saripalli , Theodore Trafalis

We improve the recently-proposed "MixMatch" semi-supervised learning algorithm by introducing two new techniques: distribution alignment and augmentation anchoring. Distribution alignment encourages the marginal distribution of predictions…

Machine Learning · Computer Science 2020-02-17 David Berthelot , Nicholas Carlini , Ekin D. Cubuk , Alex Kurakin , Kihyuk Sohn , Han Zhang , Colin Raffel

Image augmentation techniques apply transformation functions such as rotation, shearing, or color distortion on an input image. These augmentations were proven useful in improving neural networks' generalization ability. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2021-04-09 Moab Arar , Ariel Shamir , Amit Bermano

We propose Scale-aware AutoAug to learn data augmentation policies for object detection. We define a new scale-aware search space, where both image- and box-level augmentations are designed for maintaining scale invariance. Upon this search…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Yukang Chen , Yanwei Li , Tao Kong , Lu Qi , Ruihang Chu , Lei Li , Jiaya Jia

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