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Data augmentation creates new data points by transforming the original ones for a reinforcement learning (RL) agent to learn from, which has been shown to be effective for the objective of improving the data efficiency of RL for continuous…

Machine Learning · Computer Science 2024-10-18 Jinzhu Luo , Dingyang Chen , Qi Zhang

Deep Neural Networks are well known for efficiently fitting training data, yet experiencing poor generalization capabilities whenever some kind of bias dominates over the actual task labels, resulting in models learning "shortcuts". In…

Machine Learning · Computer Science 2024-08-12 Pietro Morerio , Ruggero Ragonesi , Vittorio Murino

Machine learning (ML) on tabular data is ubiquitous, yet obtaining abundant high-quality tabular data for model training remains a significant obstacle. Numerous works have focused on tabular data augmentation (TDA) to enhance the original…

Machine Learning · Computer Science 2024-08-01 Lingxi Cui , Huan Li , Ke Chen , Lidan Shou , Gang Chen

Previous attempts for data augmentation are designed manually, and the augmentation policies are dataset-specific. Recently, an automatic data augmentation approach, named AutoAugment, is proposed using reinforcement learning. AutoAugment…

Machine Learning · Computer Science 2018-11-13 Mingyang Geng , Kele Xu , Bo Ding , Huaimin Wang , Lei Zhang

We extend semi-supervised learning to the problem of domain adaptation to learn significantly higher-accuracy models that train on one data distribution and test on a different one. With the goal of generality, we introduce AdaMatch, a…

Machine Learning · Computer Science 2022-03-16 David Berthelot , Rebecca Roelofs , Kihyuk Sohn , Nicholas Carlini , Alex Kurakin

In computer vision, contrastive learning is the most advanced unsupervised learning framework. Yet most previous methods simply apply fixed composition of data augmentations to improve data efficiency, which ignores the changes in their…

Computer Vision and Pattern Recognition · Computer Science 2023-04-20 Yuhan Zhang , He Zhu , Shan Yu

Recent advances in visual reinforcement learning (RL) have led to impressive success in handling complex tasks. However, these methods have demonstrated limited generalization capability to visual disturbances, which poses a significant…

Machine Learning · Computer Science 2023-06-02 Lu Li , Jiafei Lyu , Guozheng Ma , Zilin Wang , Zhenjie Yang , Xiu Li , Zhiheng Li

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

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

Full-sampling (e.g., Q-learning) and pure-expectation (e.g., Expected Sarsa) algorithms are efficient and frequently used techniques in reinforcement learning. Q$(\sigma,\lambda)$ is the first approach unifies them with eligibility trace…

Machine Learning · Computer Science 2019-09-09 Long Yang , Yu Zhang , Qian Zheng , Pengfei Li , Gang Pan

Over the years, the paradigm of medical image analysis has shifted from manual expertise to automated systems, often using deep learning (DL) systems. The performance of deep learning algorithms is highly dependent on data quality.…

Image and Video Processing · Electrical Eng. & Systems 2022-10-04 Sidra Aleem , Teerath Kumar , Suzanne Little , Malika Bendechache , Rob Brennan , Kevin McGuinness

Generative data augmentation, which scales datasets by obtaining fake labeled examples from a trained conditional generative model, boosts classification performance in various learning tasks including (semi-)supervised learning, few-shot…

Machine Learning · Computer Science 2023-05-30 Chenyu Zheng , Guoqiang Wu , Chongxuan Li

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…

Data augmentation have been intensively used in training deep neural network to improve the generalization, whether in original space (e.g., image space) or representation space. Although being successful, the connection between the…

Machine Learning · Computer Science 2020-06-30 Qian Li , Qingyuan Hu , Yong Qi , Saiyu Qi , Jie Ma , Jian Zhang

Data augmentation has been widely applied as an effective methodology to improve generalization in particular when training deep neural networks. Recently, researchers proposed a few intensive data augmentation techniques, which indeed…

Machine Learning · Computer Science 2019-11-22 Zhuoxun He , Lingxi Xie , Xin Chen , Ya Zhang , Yanfeng Wang , Qi Tian

Based on recent advances in natural language modeling and those in text generation capabilities, we propose a novel data augmentation method for text classification tasks. We use a powerful pre-trained neural network model to artificially…

Computation and Language · Computer Science 2019-11-28 Ateret Anaby-Tavor , Boaz Carmeli , Esther Goldbraich , Amir Kantor , George Kour , Segev Shlomov , Naama Tepper , Naama Zwerdling

When deep learning is applied to visual object recognition, data augmentation is often used to generate additional training data without extra labeling cost. It helps to reduce overfitting and increase the performance of the algorithm. In…

Computer Vision and Pattern Recognition · Computer Science 2014-02-18 Alexey Dosovitskiy , Jost Tobias Springenberg , Thomas Brox

A recurring problem faced when training neural networks is that there is typically not enough data to maximize the generalization capability of deep neural networks(DNN). There are many techniques to address this, including data…

Artificial Intelligence · Computer Science 2017-04-26 Joseph Lemley , Shabab Bazrafkan , Peter Corcoran

Data augmentation is popular in the training of large neural networks; currently, however, there is no clear theoretical comparison between different algorithmic choices on how to use augmented data. In this paper, we take a step in this…

Machine Learning · Computer Science 2022-06-17 Shuo Yang , Yijun Dong , Rachel Ward , Inderjit S. Dhillon , Sujay Sanghavi , Qi Lei

Continuous efforts are being made to advance anomaly detection in various manufacturing processes to increase the productivity and safety of industrial sites. Deep learning replaced rule-based methods and recently emerged as a promising…

Machine Learning · Computer Science 2024-06-28 Kukjin Choi , Jihun Yi , Jisoo Mok , Sungroh Yoon