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Large datasets often have unreliable labels-such as those obtained from Amazon's Mechanical Turk or social media platforms-and classifiers trained on mislabeled datasets often exhibit poor performance. We present a simple, effective…

Computer Vision and Pattern Recognition · Computer Science 2017-05-10 Ishan Jindal , Matthew Nokleby , Xuewen Chen

Anomaly detection is to recognize samples that differ in some respect from the training observations. These samples which do not conform to the distribution of normal data are called outliers or anomalies. In real-world anomaly detection…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Vahid Reza Khazaie , Anthony Wong , Yalda Mohsenzadeh

Data augmentation, a technique in which a training set is expanded with class-preserving transformations, is ubiquitous in modern machine learning pipelines. In this paper, we seek to establish a theoretical framework for understanding data…

Machine Learning · Computer Science 2019-03-21 Tri Dao , Albert Gu , Alexander J. Ratner , Virginia Smith , Christopher De Sa , Christopher Ré

We propose a novel convolutional neural network for lesion detection from weak labels. Only a single, global label per image - the lesion count - is needed for training. We train a regression network with a fully convolutional architecture…

Computer Vision and Pattern Recognition · Computer Science 2017-10-31 Florian Dubost , Gerda Bortsova , Hieab Adams , Arfan Ikram , Wiro Niessen , Meike Vernooij , Marleen De Bruijne

Meta-learning for algorithm selection relies on a meta-dataset in which each row corresponds to a supervised learning dataset described by meta-features and labelled with a target value that is associated with algorithm choice (typically,…

Machine Learning · Computer Science 2026-05-12 Darren Zhu , Daren Ler

We propose a simple data augmentation technique that can be applied to standard model-free reinforcement learning algorithms, enabling robust learning directly from pixels without the need for auxiliary losses or pre-training. The approach…

Machine Learning · Computer Science 2021-03-09 Ilya Kostrikov , Denis Yarats , Rob Fergus

Data augmentation is a widely used technique for improving model performance in machine learning, particularly in computer vision and natural language processing. Recently, there has been increasing interest in applying augmentation…

Machine Learning · Computer Science 2023-05-05 Raad Khraishi , Ramin Okhrati

In many cases of machine learning, research suggests that the development of training data might have a higher relevance than the choice and modelling of classifiers themselves. Thus, data augmentation methods have been developed to improve…

Computation and Language · Computer Science 2022-07-25 Markus Bayer , Marc-André Kaufhold , Björn Buchhold , Marcel Keller , Jörg Dallmeyer , Christian Reuter

Deep learning performs remarkably well on many time series analysis tasks recently. The superior performance of deep neural networks relies heavily on a large number of training data to avoid overfitting. However, the labeled data of many…

Machine Learning · Computer Science 2022-04-04 Qingsong Wen , Liang Sun , Fan Yang , Xiaomin Song , Jingkun Gao , Xue Wang , Huan Xu

Despite the success of deep neural networks (DNNs) in image classification tasks, the human-level performance relies on massive training data with high-quality manual annotations, which are expensive and time-consuming to collect. There…

Machine Learning · Computer Science 2019-04-15 Junnan Li , Yongkang Wong , Qi Zhao , Mohan Kankanhalli

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

Weak supervision combines the advantages of training on real data with the ability to exploit signal properties. However, training a neural network using weak supervision often requires an excessive amount of signal data, which severely…

High Energy Physics - Phenomenology · Physics 2024-12-23 Zong-En Chen , Cheng-Wei Chiang , Feng-Yang Hsieh

Data augmentation refers to a group of techniques whose goal is to battle limited amount of available data to improve model generalization and push sample distribution toward the true distribution. While different augmentation strategies…

Quantitative Methods · Quantitative Biology 2020-06-03 Ruqian Hao , Khashayar Namdar , Lin Liu , Masoom A. Haider , Farzad Khalvati

The automatic detection of hypernymy relationships represents a challenging problem in NLP. The successful application of state-of-the-art supervised approaches using distributed representations has generally been impeded by the limited…

Computation and Language · Computer Science 2021-01-25 Thomas Kober , Julie Weeds , Lorenzo Bertolini , David Weir

Data augmentation is an essential technique in natural language processing (NLP) for enriching training datasets by generating diverse samples. This process is crucial for improving the robustness and generalization capabilities of NLP…

Computation and Language · Computer Science 2025-10-16 Zaitian Wang , Jinghan Zhang , Xinhao Zhang , Kunpeng Liu , Pengfei Wang , Yuanchun Zhou

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

While agents trained by Reinforcement Learning (RL) can solve increasingly challenging tasks directly from visual observations, generalizing learned skills to novel environments remains very challenging. Extensive use of data augmentation…

Machine Learning · Computer Science 2021-12-10 Nicklas Hansen , Hao Su , Xiaolong Wang

Automated augmentation is an emerging and effective technique to search for data augmentation policies to improve generalizability of deep neural network training. Most existing work focuses on constructing a unified policy applicable to…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Mingjun Zhao , Shan Lu , Zixuan Wang , Xiaoli Wang , Di Niu

The rapid progress in machine learning methods has been empowered by i) huge datasets that have been collected and annotated, ii) improved engineering (e.g. data pre-processing/normalization). The existing datasets typically include several…

Computer Vision and Pattern Recognition · Computer Science 2018-01-23 Grigorios G. Chrysos , Yannis Panagakis , Stefanos Zafeiriou

Advanced data augmentation strategies have widely been studied to improve the generalization ability of deep learning models. Regional dropout is one of the popular solutions that guides the model to focus on less discriminative parts by…

Machine Learning · Computer Science 2021-07-28 A. F. M. Shahab Uddin , Mst. Sirazam Monira , Wheemyung Shin , TaeChoong Chung , Sung-Ho Bae