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Image data augmentation constitutes a critical methodology in modern computer vision tasks, since it can facilitate towards enhancing the diversity and quality of training datasets; thereby, improving the performance and robustness of…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Panagiotis Alimisis , Ioannis Mademlis , Panagiotis Radoglou-Grammatikis , Panagiotis Sarigiannidis , Georgios Th. Papadopoulos

Neural networks are prone to overfitting and memorizing data patterns. To avoid over-fitting and enhance their generalization and performance, various methods have been suggested in the literature, including dropout, regularization, label…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Humza Naveed , Saeed Anwar , Munawar Hayat , Kashif Javed , Ajmal Mian

Contrary to most machine learning models, modern deep artificial neural networks typically include multiple components that contribute to regularization. Despite the fact that some (explicit) regularization techniques, such as weight decay…

Computer Vision and Pattern Recognition · Computer Science 2020-11-13 Alex Hernández-García , Peter König

Data augmentation is an essential part of the training process applied to deep learning models. The motivation is that a robust training process for deep learning models depends on large annotated datasets, which are expensive to be…

Computer Vision and Pattern Recognition · Computer Science 2017-10-31 Toan Tran , Trung Pham , Gustavo Carneiro , Lyle Palmer , Ian Reid

Meta-learning algorithms aim to learn two components: a model that predicts targets for a task, and a base learner that quickly updates that model when given examples from a new task. This additional level of learning can be powerful, but…

Machine Learning · Computer Science 2020-11-05 Janarthanan Rajendran , Alex Irpan , Eric Jang

In this paper we investigate the benefit of augmenting data with synthetically created samples when training a machine learning classifier. Two approaches for creating additional training samples are data warping, which generates additional…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Sebastien C. Wong , Adam Gatt , Victor Stamatescu , Mark D. McDonnell

Imitation learning is an effective approach for training game-playing agents and, consequently, for efficient game production. However, generalization - the ability to perform well in related but unseen scenarios - is an essential…

Machine Learning · Computer Science 2024-04-09 Derek Yadgaroff , Alessandro Sestini , Konrad Tollmar , Ayca Ozcelikkale , Linus Gisslén

We design and analyze a novel accelerated gradient-based algorithm for a class of bilevel optimization problems. These problems have various applications arising from machine learning and image processing, where optimal solutions of the two…

Optimization and Control · Mathematics 2023-11-20 Sepideh Samadi , Daniel Burbano , Farzad Yousefian

Leaping into the rapidly developing world of deep learning is an exciting and sometimes confusing adventure. All of the advice and tutorials available can be hard to organize and work through, especially when training specific models on…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Ishtar Nyawira , Kristi Bushman

The hyperparameter optimization of neural network can be expressed as a bilevel optimization problem. The bilevel optimization is used to automatically update the hyperparameter, and the gradient of the hyperparameter is the approximate…

Machine Learning · Computer Science 2022-12-14 Shuo Yang , Yang Jiao , Shaoyu Dou , Mana Zheng , Chen Zhu

Object-level data association is central to robotic applications such as tracking-by-detection and object-level simultaneous localization and mapping. While current learned visual data association methods outperform hand-crafted algorithms,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Yorai Shaoul , Katherine Liu , Kyel Ok , Nicholas Roy

Modern neural networks are over-parameterized and thus rely on strong regularization such as data augmentation and weight decay to reduce overfitting and improve generalization. The dominant form of data augmentation applies invariant…

Computer Vision and Pattern Recognition · Computer Science 2024-01-25 Yang Liu , Shen Yan , Laura Leal-Taixé , James Hays , Deva Ramanan

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…

Computer Vision and Pattern Recognition · Computer Science 2019-11-19 Ryuichiro Hataya , Jan Zdenek , Kazuki Yoshizoe , Hideki Nakayama

Though data augmentation has become a standard component of deep neural network training, the underlying mechanism behind the effectiveness of these techniques remains poorly understood. In practice, augmentation policies are often chosen…

Machine Learning · Computer Science 2020-06-08 Raphael Gontijo-Lopes , Sylvia J. Smullin , Ekin D. Cubuk , Ethan Dyer

Data augmentations are useful in closing the sim-to-real domain gap when training on synthetic data. This is because they widen the training data distribution, thus encouraging the model to generalize better to other domains. Many image…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Bram Vanherle , Nick Michiels , Frank Van Reeth

Variational regularization techniques are dominant in the field of mathematical imaging. A drawback of these techniques is that they are dependent on a number of parameters which have to be set by the user. A by now common strategy to…

Optimization and Control · Mathematics 2020-12-10 Matthias J. Ehrhardt , Lindon Roberts

Data augmentation is a widely used technique in classification to increase data used in training. It improves generalization and reduces amount of annotated human activity data needed for training which reduces labour and time needed with…

Machine Learning · Computer Science 2021-09-07 Sandeep Ramachandra , Alexander Hoelzemann , Kristof Van Laerhoven

Objective: The use of deep learning for electroencephalography (EEG) classification tasks has been rapidly growing in the last years, yet its application has been limited by the relatively small size of EEG datasets. Data augmentation,…

Machine Learning · Computer Science 2022-11-16 Cédric Rommel , Joseph Paillard , Thomas Moreau , Alexandre Gramfort

Simple yet effective data augmentation techniques have been proposed for sentence-level and sentence-pair natural language processing tasks. Inspired by these efforts, we design and compare data augmentation for named entity recognition,…

Computation and Language · Computer Science 2020-10-23 Xiang Dai , Heike Adel

Domain adaptation for semantic image segmentation is very necessary since manually labeling large datasets with pixel-level labels is expensive and time consuming. Existing domain adaptation techniques either work on limited datasets, or…

Computer Vision and Pattern Recognition · Computer Science 2019-04-25 Yunsheng Li , Lu Yuan , Nuno Vasconcelos