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As an effective strategy, data augmentation (DA) alleviates data scarcity scenarios where deep learning techniques may fail. It is widely applied in computer vision then introduced to natural language processing and achieves improvements in…

Computation and Language · Computer Science 2022-06-28 Bohan Li , Yutai Hou , Wanxiang Che

The training of spoken language understanding (SLU) models often faces the problem of data scarcity. In this paper, we put forward a data augmentation method using pretrained language models to boost the variability and accuracy of…

Computation and Language · Computer Science 2021-03-12 Baolin Peng , Chenguang Zhu , Michael Zeng , Jianfeng Gao

Deep learning approaches are increasingly used to tackle forecasting tasks involving datasets with multiple univariate time series. A key factor in the successful application of these methods is a large enough training sample size, which is…

Machine Learning · Computer Science 2025-01-06 Vitor Cerqueira , Moisés Santos , Luis Roque , Yassine Baghoussi , Carlos Soares

Data augmentation methods enrich datasets with augmented data to improve the performance of neural networks. Recently, automated data augmentation methods have emerged, which automatically design augmentation strategies. Existing work…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Misgana Negassi , Diane Wagner , Alexander Reiterer

Data augmentation (DA) has been widely investigated to facilitate model optimization in many tasks. However, in most cases, data augmentation is randomly performed for each training sample with a certain probability, which might incur…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Shiqi Lin , Zhizheng Zhang , Xin Li , Wenjun Zeng , Zhibo Chen

Automated data augmentation has shown superior performance in image recognition. Existing works search for dataset-level augmentation policies without considering individual sample variations, which are likely to be sub-optimal. On the…

Machine Learning · Computer Science 2020-12-23 Fengwei Zhou , Jiawei Li , Chuanlong Xie , Fei Chen , Lanqing Hong , Rui Sun , Zhenguo Li

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

With the capabilities of understanding and executing natural language instructions, Large language models (LLMs) can potentially act as a powerful tool for textual data augmentation. However, the quality of augmented data depends heavily on…

Computation and Language · Computer Science 2024-04-30 Yichuan Li , Kaize Ding , Jianling Wang , Kyumin Lee

Automatic machine learning (\AML) is a family of techniques to automate the process of training predictive models, aiming to both improve performance and make machine learning more accessible. While many recent works have focused on aspects…

Machine Learning · Computer Science 2020-03-24 Nadiia Chepurko , Ryan Marcus , Emanuel Zgraggen , Raul Castro Fernandez , Tim Kraska , David Karger

The high costs of annotating large datasets suggests a need for effectively training CNNs with limited data, and data augmentation is a promising direction. We study foundational augmentation techniques, including Mixed Sample Data…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Swarna Kamlam Ravindran , Carlo Tomasi

Machine-learning from a disparate set of tables, a data lake, requires assembling features by merging and aggregating tables. Data discovery can extend autoML to data tables by automating these steps. We present an in-depth analysis of such…

Databases · Computer Science 2025-05-20 Riccardo Cappuzzo , Aimee Coelho , Felix Lefebvre , Paolo Papotti , Gael Varoquaux

The generative large language models (LLMs) are increasingly used for data augmentation tasks, where text samples are paraphrased (or generated anew) and then used for classifier fine-tuning. Existing works on augmentation leverage the…

Computation and Language · Computer Science 2024-10-15 Jan Cegin , Branislav Pecher , Jakub Simko , Ivan Srba , Maria Bielikova , Peter Brusilovsky

Data augmentation, a widely-employed technique for addressing data scarcity, involves generating synthetic data examples which are then used to augment available training data. Researchers have seen surprising success from simple methods,…

Computation and Language · Computer Science 2025-06-05 Ray Groshan , Michael Ginn , Alexis Palmer

Data augmentation is a widely adopted technique utilized to improve the robustness of automatic speech recognition (ASR). Employing a fixed data augmentation strategy for all training data is a common practice. However, it is important to…

Sound · Computer Science 2024-12-03 Hongxuan Lu , Biao Li

Data augmentation plays a pivotal role in enhancing and diversifying training data. Nonetheless, consistently improving model performance in varied learning scenarios, especially those with inherent data biases, remains challenging. To…

Machine Learning · Computer Science 2024-06-04 Xiaoling Zhou , Wei Ye , Zhemg Lee , Rui Xie , Shikun Zhang

In the rapidly evolving field of large language models (LLMs), data augmentation (DA) has emerged as a pivotal technique for enhancing model performance by diversifying training examples without the need for additional data collection. This…

Computation and Language · Computer Science 2024-07-03 Bosheng Ding , Chengwei Qin , Ruochen Zhao , Tianze Luo , Xinze Li , Guizhen Chen , Wenhan Xia , Junjie Hu , Anh Tuan Luu , Shafiq Joty

Introduction Data imbalance is one of the crucial issues in big data analysis with fewer labels. For example, in real-world healthcare data, spam detection labels, and financial fraud detection datasets. Many data balance methods were…

Machine Learning · Computer Science 2023-01-27 Chenyu Li , Xia Jiang

Generalization Performance of Deep Learning models trained using Empirical Risk Minimization can be improved significantly by using Data Augmentation strategies such as simple transformations, or using Mixed Samples. We attempt to…

Computer Vision and Pattern Recognition · Computer Science 2020-06-11 Deepan Das , Haley Massa , Abhimanyu Kulkarni , Theodoros Rekatsinas

In Neural Machine Translation (NMT), data augmentation methods such as back-translation have proven their effectiveness in improving translation performance. In this paper, we propose a novel data augmentation approach for NMT, which is…

Computation and Language · Computer Science 2022-05-11 Chang Jin , Shigui Qiu , Nini Xiao , Hao Jia

NLP has achieved great progress in the past decade through the use of neural models and large labeled datasets. The dependence on abundant data prevents NLP models from being applied to low-resource settings or novel tasks where significant…

Computation and Language · Computer Science 2021-06-15 Jiaao Chen , Derek Tam , Colin Raffel , Mohit Bansal , Diyi Yang