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Data augmentation (DA) is indispensable in modern machine learning and deep neural networks. The basic idea of DA is to construct new training data to improve the model's generalization by adding slightly disturbed versions of existing data…

Machine Learning · Computer Science 2024-06-05 Chengtai Cao , Fan Zhou , Yurou Dai , Jianping Wang , Kunpeng Zhang

Real-world training data usually exhibits long-tailed distribution, where several majority classes have a significantly larger number of samples than the remaining minority classes. This imbalance degrades the performance of typical…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Shuang Li , Kaixiong Gong , Chi Harold Liu , Yulin Wang , Feng Qiao , Xinjing Cheng

We consider the problem of single-source domain generalization. Existing methods typically rely on extensive augmentations to synthetically cover diverse domains during training. However, they struggle with semantic shifts (e.g., background…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Aishwarya Agarwal , Srikrishna Karanam , Vineet Gandhi

Image tokenization, the process of transforming raw image pixels into a compact low-dimensional latent representation, has proven crucial for scalable and efficient image generation. However, mainstream image tokenization methods generally…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Kaiwen Zha , Lijun Yu , Alireza Fathi , David A. Ross , Cordelia Schmid , Dina Katabi , Xiuye Gu

Data augmentation is an essential technique in improving the generalization of deep neural networks. The majority of existing image-domain augmentations either rely on geometric and structural transformations, or apply different kinds of…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Morgan Heisler , Amin Banitalebi-Dehkordi , Yong Zhang

Data augmentation is a powerful technique to improve performance in applications such as image and text classification tasks. Yet, there is little rigorous understanding of why and how various augmentations work. In this work, we consider a…

Machine Learning · Computer Science 2023-07-28 Sen Wu , Hongyang R. Zhang , Gregory Valiant , Christopher Ré

State-of-The-Art (SoTA) image captioning models are often trained on the MicroSoft Common Objects in Context (MS-COCO) dataset, which contains human-annotated captions with an average length of approximately ten tokens. Although effective…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Luigi Celona , Simone Bianco , Marco Donzella , Paolo Napoletano

State-of-the-art generative text-to-image models are known to exhibit social biases and over-represent certain groups like people of perceived lighter skin tones and men in their outcomes. In this work, we propose a method to mitigate such…

Computer Vision and Pattern Recognition · Computer Science 2023-10-12 Piero Esposito , Parmida Atighehchian , Anastasis Germanidis , Deepti Ghadiyaram

In this paper, we propose a novel data augmentation strategy named Cut-Thumbnail, that aims to improve the shape bias of the network. We reduce an image to a certain size and replace the random region of the original image with the reduced…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Tianshu Xie , Xuan Cheng , Minghui Liu , Jiali Deng , Xiaomin Wang , Ming Liu

Data augmentation techniques are widely used for enhancing the performance of machine learning models by tackling class imbalance issues and data sparsity. State-of-the-art generative language models have been shown to provide significant…

Computation and Language · Computer Science 2023-01-10 Aleksandra Edwards , Asahi Ushio , Jose Camacho-Collados , Hélène de Ribaupierre , Alun Preece

Deep generative models have emerged as a powerful tool for learning useful molecular representations and designing novel molecules with desired properties, with applications in drug discovery and material design. However, most existing deep…

Data augmentation (DA) is widely employed to improve the generalization performance of deep models. However, most existing DA methods employ augmentation operations with fixed or random magnitudes throughout the training process. While this…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Suorong Yang , Peijia Li , Xin Xiong , Furao Shen , Jian Zhao

The mental disorder of online users is determined using social media posts. The major challenge in this domain is to avail the ethical clearance for using the user generated text on social media platforms. Academic re searchers identified…

Computation and Language · Computer Science 2022-11-09 Gunjan Ansari , Muskan Garg , Chandni Saxena

Recent image captioning models are achieving impressive results based on popular metrics, i.e., BLEU, CIDEr, and SPICE. However, focusing on the most popular metrics that only consider the overlap between the generated captions and human…

Computer Vision and Pattern Recognition · Computer Science 2022-04-11 Jiuniu Wang , Wenjia Xu , Qingzhong Wang , Antoni B. Chan

Data augmentation involves generating synthetic samples that resemble those in a given dataset. In resource-limited fields where high-quality data is scarce, augmentation plays a crucial role in increasing the volume of training data. This…

Computation and Language · Computer Science 2024-12-30 Md. Tariquzzaman , Audwit Nafi Anam , Naimul Haque , Mohsinul Kabir , Hasan Mahmud , Md Kamrul Hasan

Unsupervised Domain Adaptation (UDA) aims to adapt models trained on a source domain to a new target domain where no labelled data is available. In this work, we investigate the problem of UDA from a synthetic computer-generated domain to a…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Stephan Brehm , Sebastian Scherer , Rainer Lienhart

We propose a novel algorithm for data augmentation in nonlinear over-parametrized regression. Our data augmentation algorithm borrows from the literature on causality and extends the recently proposed Anchor regression (AR) method for data…

Machine Learning · Computer Science 2023-11-29 Nora Schneider , Shirin Goshtasbpour , Fernando Perez-Cruz

In this paper, we address a key scientific problem in machine learning: Given a training set for an image classification task, can we train a generative model on this dataset to enhance the classification performance? (i.e., closed-set…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Haowen Wang , Guowei Zhang , Xiang Zhang , Zeyuan Chen , Haiyang Xu , Dou Hoon Kwark , Zhuowen Tu

The rapid advancement of generative models in creating highly realistic images poses substantial risks for misinformation dissemination. For instance, a synthetic image, when shared on social media, can mislead extensive audiences and erode…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Zhenglin Huang , Jinwei Hu , Xiangtai Li , Yiwei He , Xingyu Zhao , Bei Peng , Baoyuan Wu , Xiaowei Huang , Guangliang Cheng

Image captioning models often suffer from performance degradation when applied to novel datasets, as they are typically trained on domain-specific data. To enhance generalization in out-of-domain scenarios, retrieval-augmented approaches…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Hao Wu , Zhihang Zhong , Xiao Sun
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