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Data augmentation (DA) aims to generate constrained and diversified data to improve classifiers in Low-Resource Classification (LRC). Previous studies mostly use a fine-tuned Language Model (LM) to strengthen the constraints but ignore the…

Computation and Language · Computer Science 2021-09-27 Guang Liu , Hailong Huang , Yuzhao Mao , Weiguo Gao , Xuan Li , Jianping Shen

Compact dual-encoder models are widely used for retrieval owing to their efficiency and scalability. However, such models often underperform compared to their Large Language Model (LLM)-based retrieval counterparts, likely due to their…

Information Retrieval · Computer Science 2025-09-23 Pranjal A. Chitale , Bishal Santra , Yashoteja Prabhu , Amit Sharma

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

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

Retrieval-augmented generation resorts to content retrieved from external sources in order to leverage the performance of large language models in downstream tasks. The excessive volume of retrieved content, the possible dispersion of its…

Computation and Language · Computer Science 2024-07-08 João Rodrigues , António Branco

Handwritten text and scene text suffer from various shapes and distorted patterns. Thus training a robust recognition model requires a large amount of data to cover diversity as much as possible. In contrast to data collection and…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Canjie Luo , Yuanzhi Zhu , Lianwen Jin , Yongpan Wang

Data augmentation has been widely used in low-resource NER tasks to tackle the problem of data sparsity. However, previous data augmentation methods have the disadvantages of disrupted syntactic structures, token-label mismatch, and…

Computation and Language · Computer Science 2023-07-18 Sihan Song , Furao Shen , Jian Zhao

Prompt-based learning has shown considerable promise in reformulating various downstream tasks as cloze problems by combining original input with a predetermined template. This approach demonstrates its effectiveness, especially in few-shot…

Computation and Language · Computer Science 2023-11-14 Bohan Li , Longxu Dou , Yutai Hou , Yunlong Feng , Honglin Mu , Qingfu Zhu , Qinghua Sun , Wanxiang Che

Deep learning has achieved remarkable results in many computer vision tasks. Deep neural networks typically rely on large amounts of training data to avoid overfitting. However, labeled data for real-world applications may be limited. By…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Suorong Yang , Weikang Xiao , Mengchen Zhang , Suhan Guo , Jian Zhao , Furao Shen

Machine Learning (ML) in low-data settings remains an underappreciated yet crucial problem. Hence, data augmentation methods to increase the sample size of datasets needed for ML are key to unlocking the transformative potential of ML in…

Machine Learning · Computer Science 2024-07-02 Nabeel Seedat , Nicolas Huynh , Boris van Breugel , Mihaela van der Schaar

In this paper, we investigate the driving factors behind concatenation, a simple but effective data augmentation method for low-resource neural machine translation. Our experiments suggest that discourse context is unlikely the cause for…

Computation and Language · Computer Science 2021-07-05 Toan Q. Nguyen , Kenton Murray , David Chiang

Many business workflows require extracting important fields from form-like documents (e.g. bank statements, bills of lading, purchase orders, etc.). Recent techniques for automating this task work well only when trained with large datasets.…

Computation and Language · Computer Science 2022-12-23 Jing Xie , James B. Wendt , Yichao Zhou , Seth Ebner , Sandeep Tata

Natural disaster assessment relies on accurate and rapid access to information, with social media emerging as a valuable real-time source. However, existing datasets suffer from class imbalance and limited samples, making effective model…

Computers and Society · Computer Science 2025-11-04 Adrian-Dinu Urse , Dumitru-Clementin Cercel , Florin Pop

Due to long-distance correlation and powerful pretrained models, transformer-based methods have initiated a breakthrough in visual object tracking performance. Previous works focus on designing effective architectures suited for tracking,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Jie Zhao , Johan Edstedt , Michael Felsberg , Dong Wang , Huchuan Lu

This paper tackles one of the greatest limitations in Machine Learning: Data Scarcity. Specifically, we explore whether high accuracy classifiers can be built from small datasets, utilizing a combination of data augmentation techniques and…

Computation and Language · Computer Science 2020-07-03 Chetanya Rastogi , Nikka Mofid , Fang-I Hsiao

Machine translation (MT) models used in industries with constantly changing topics, such as translation or news agencies, need to adapt to new data to maintain their performance over time. Our aim is to teach a pre-trained MT model to…

Computation and Language · Computer Science 2021-04-01 Farid Arthaud , Rachel Bawden , Alexandra Birch

Data augmentation is widely used in text classification, especially in the low-resource regime where a few examples for each class are available during training. Despite the success, generating data augmentations as hard positive examples…

Computation and Language · Computer Science 2023-08-10 Junfan Chen , Richong Zhang , Zheyan Luo , Chunming Hu , Yongyi Mao

Data is a central component of machine learning and causal inference tasks. The availability of large amounts of data from sources such as open data repositories, data lakes and data marketplaces creates an opportunity to augment data and…

Databases · Computer Science 2023-04-19 Sainyam Galhotra , Yue Gong , Raul Castro Fernandez

Conventional image classifiers are trained by randomly sampling mini-batches of images. To achieve state-of-the-art performance, practitioners use sophisticated data augmentation schemes to expand the amount of training data available for…

Machine Learning · Computer Science 2021-06-23 Renkun Ni , Micah Goldblum , Amr Sharaf , Kezhi Kong , Tom Goldstein

Deep neural networks have achieved state-of-the-art results in various vision and/or language tasks. Despite the use of large training datasets, most models are trained by iterating over single input-output pairs, discarding the remaining…

Computation and Language · Computer Science 2021-04-27 Rita Parada Ramos , Patrícia Pereira , Helena Moniz , Joao Paulo Carvalho , Bruno Martins