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Data augmentation is a cornerstone technique in deep learning, widely used to improve model generalization. Traditional methods like random cropping and color jittering, as well as advanced techniques such as CutOut, Mixup, and CutMix, have…

Computer Vision and Pattern Recognition · Computer Science 2025-02-14 Jingyang Li , Jiachun Pan , Kim-Chuan Toh , Pan Zhou

Data Augmentation (DA) is a technique to increase the quantity and diversity of the training data, and by that alleviate overfitting and improve generalisation. However, standard DA produces synthetic data for augmentation with limited…

Computer Vision and Pattern Recognition · Computer Science 2023-07-24 Lorenzo Tronchin , Minh H. Vu , Paolo Soda , Tommy Löfstedt

The application of deep learning to build accurate predictive models from functional neuroimaging data is often hindered by limited dataset sizes. Though data augmentation can help mitigate such training obstacles, most data augmentation…

Machine Learning · Computer Science 2019-10-21 Kevin P. Nguyen , Cherise Chin Fatt , Alex Treacher , Cooper Mellema , Madhukar H. Trivedi , Albert Montillo

Interpolation-based Data Augmentation (DA) methods (Mixup) linearly interpolate the inputs and labels of two or more training examples. Mixup has more recently been adapted to the field of Natural Language Processing (NLP), mainly for…

Computation and Language · Computer Science 2023-11-17 Yuxin Pei , Pushkar Bhuse , Zhengzhong Liu , Eric Xing

Data augmentation is essential to achieve state-of-the-art performance in many deep learning applications. However, the most effective augmentation techniques become computationally prohibitive for even medium-sized datasets. To address…

Machine Learning · Computer Science 2023-07-21 Tian Yu Liu , Baharan Mirzasoleiman

Automated emotion recognition in speech is a long-standing problem. While early work on emotion recognition relied on hand-crafted features and simple classifiers, the field has now embraced end-to-end feature learning and classification…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-10 Ravi Shankar , Abdouh Harouna Kenfack , Arjun Somayazulu , Archana Venkataraman

We introduce Noisy Feature Mixup (NFM), an inexpensive yet effective method for data augmentation that combines the best of interpolation based training and noise injection schemes. Rather than training with convex combinations of pairs of…

Machine Learning · Computer Science 2023-05-23 Soon Hoe Lim , N. Benjamin Erichson , Francisco Utrera , Winnie Xu , Michael W. Mahoney

The real-world facial expression recognition (FER) datasets suffer from noisy annotations due to crowd-sourcing, ambiguity in expressions, the subjectivity of annotators and inter-class similarity. However, the recent deep networks have…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Darshan Gera , Naveen Siva Kumar Badveeti , Bobbili Veerendra Raj Kumar , S Balasubramanian

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 (DA) has been widely leveraged in computer vision to alleviate data shortage, while its application in medical imaging faces multiple challenges. The prevalent DA approaches in medical image analysis encompass conventional…

Image and Video Processing · Electrical Eng. & Systems 2026-03-26 Zhaoshan Liu , Qiujie Lv , Yifan Li , Ziduo Yang , Lei Shen

Augmenting training datasets has been shown to improve the learning effectiveness for several computer vision tasks. A good augmentation produces an augmented dataset that adds variability while retaining the statistical properties of the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Tom Ching LingChen , Ava Khonsari , Amirreza Lashkari , Mina Rafi Nazari , Jaspreet Singh Sambee , Mario A. Nascimento

Deep learning (DL) algorithms have shown significant performance in various computer vision tasks. However, having limited labelled data lead to a network overfitting problem, where network performance is bad on unseen data as compared to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Teerath Kumar , Alessandra Mileo , Rob Brennan , Malika Bendechache

Deep learning vision models excel with abundant supervision, but many applications face label scarcity and class imbalance. Controllable image editing can augment scarce labeled data, yet edits often introduce artifacts and entangle…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Joris Kirchner , Amogh Gudi , Marian Bittner , Chirag Raman

Data augmentation has become an integral part of deep learning, as it is known to improve the generalization capabilities of neural networks. Since the most effective set of image transformations differs between tasks and domains, automatic…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Tom Bekor , Niv Nayman , Lihi Zelnik-Manor

In many domains, including online education, healthcare, security, and human-computer interaction, facial emotion recognition (FER) is essential. Real-world FER is still difficult despite its significance because of some factors such as…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Deeptimaan Banerjee , Prateek Gothwal , Ashis Kumer Biswas

Current state-of-the-art models for automatic Facial Expression Recognition (FER) are based on very deep neural networks that are effective but rather expensive to train. Given the dynamic conditions of FER, this characteristic hinders such…

Computer Vision and Pattern Recognition · Computer Science 2020-09-17 Pablo Barros , Nikhil Churamani , Alessandra Sciutti

Mixup is a commonly adopted data augmentation technique for image classification. Recent advances in mixup methods primarily focus on mixing based on saliency. However, many saliency detectors require intense computation and are especially…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Hyeong Kyu Choi , Joonmyung Choi , Hyunwoo J. Kim

Facial expression data is characterized by a significant imbalance, with most collected data showing happy or neutral expressions and fewer instances of fear or disgust. This imbalance poses challenges to facial expression recognition (FER)…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Yuhang Zhang , Yaqi Li , Lixiong Qin , Xuannan Liu , Weihong Deng

Optimization of image transformation functions for the purpose of data augmentation has been intensively studied. In particular, adversarial data augmentation strategies, which search augmentation maximizing task loss, show significant…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Teppei Suzuki

Throughout the various ages, facial expressions have become one of the universal ways of non-verbal communication. The ability to recognize facial expressions would pave the path for many novel applications. Despite the success of…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Raghu Vamshi. N , Bharathi Raja S