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Text data augmentation is an effective strategy for overcoming the challenge of limited sample sizes in many natural language processing (NLP) tasks. This challenge is especially prominent in the few-shot learning scenario, where the data…

Autoregressive (AR) image generation models are capable of producing high-fidelity images but often suffer from slow inference due to their inherently sequential, token-by-token decoding process. Speculative decoding, which employs a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Zhi-Kai Chen , Jun-Peng Jiang , Han-Jia Ye , De-Chuan Zhan

Visual recognition in a low-data regime is challenging and often prone to overfitting. To mitigate this issue, several data augmentation strategies have been proposed. However, standard transformations, e.g., rotation, cropping, and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Aniket Roy , Anshul Shah , Ketul Shah , Anirban Roy , Rama Chellappa

Recent advances in Multimodal Large Language Models (MLLMs) and diffusion-based generative models have substantially improved prompt-driven image editing. However, scene text editing remains challenging, as it requires models to precisely…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Yiheng Lin , Siyu Jiao , Xiaohan Lan , Wei Zhou , Qi She , Fei Yu , Heyun Chen , Zhengwei Wang , Jinghuan Chen , Moran Li , Yingchen Yu , Zijian Feng , Yao Zhao , Yunchao Wei , Yujie Zhong

Recent work has shown that data augmentation has the potential to significantly improve the generalization of deep learning models. Recently, automated augmentation strategies have led to state-of-the-art results in image classification and…

Computer Vision and Pattern Recognition · Computer Science 2019-11-15 Ekin D. Cubuk , Barret Zoph , Jonathon Shlens , Quoc V. Le

Scene text image super-resolution (STISR) has been regarded as an important pre-processing task for text recognition from low-resolution scene text images. Most recent approaches use the recognizer's feedback as clues to guide…

Computer Vision and Pattern Recognition · Computer Science 2022-05-02 Minyi Zhao , Miao Wang , Fan Bai , Bingjia Li , Jie Wang , Shuigeng Zhou

A novel scene text recognizer based on Vision-Language Transformer (VLT) is presented. Inspired by Levenshtein Transformer in the area of NLP, the proposed method (named Levenshtein OCR, and LevOCR for short) explores an alternative way for…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Cheng Da , Peng Wang , Cong Yao

The deployment of autonomous agents in real-world scenarios is challenged by "unknown unknowns", i.e. novel unexpected environments not encountered during training, such as degraded signs. While existing research focuses on anomaly…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Abhibha Gupta , Rully Agus Hendrawan , Mansur Arief

Continuous sign language recognition (SLR) deals with unaligned video-text pair and uses the word error rate (WER), i.e., edit distance, as the main evaluation metric. Since it is not differentiable, we usually instead optimize the learning…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Junfu Pu , Wengang Zhou , Hezhen Hu , Houqiang Li

Large models, encompassing large language and diffusion models, have shown exceptional promise in approximating human-level intelligence, garnering significant interest from both academic and industrial spheres. However, the training of…

Machine Learning · Computer Science 2024-03-05 Yue Zhou , Chenlu Guo , Xu Wang , Yi Chang , Yuan Wu

Speech-based virtual assistants, such as Amazon Alexa, Google assistant, and Apple Siri, typically convert users' audio signals to text data through automatic speech recognition (ASR) and feed the text to downstream dialog models for…

Computation and Language · Computer Science 2020-06-11 Longshaokan Wang , Maryam Fazel-Zarandi , Aditya Tiwari , Spyros Matsoukas , Lazaros Polymenakos

While automatic speech recognition (ASR) greatly benefits from data augmentation, the augmentation recipes themselves tend to be heuristic. In this paper, we address one of the heuristic approach associated with balancing the right amount…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-17 Vishwanath Pratap Singh , Federico Malato , Ville Hautamaki , Md. Sahidullah , Tomi Kinnunen

We propose autoencoding speaker conversion for training data augmentation in automatic speech translation. This technique directly transforms an audio sequence, resulting in audio synthesized to resemble another speaker's voice. Our method…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-28 Arya D. McCarthy , Liezl Puzon , Juan Pino

Data augmentation has been widely used to improve deep neural networks in many research fields, such as computer vision. However, less work has been done in the context of text, partially due to its discrete nature and the complexity of…

Computation and Language · Computer Science 2021-01-12 Ping Yu , Ruiyi Zhang , Yang Zhao , Yizhe Zhang , Chunyuan Li , Changyou Chen

Document Visual Question Answering (Document VQA) must cope with documents that span dozens of pages, yet leading systems still concatenate every page or rely on very large vision-language models, both of which are memory-hungry.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Eric López , Artemis Llabrés , Ernest Valveny

Scientific visual question answering poses significant challenges for vision-language models due to the complexity of scientific figures and their multimodal context. Traditional approaches treat the figure and accompanying text (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-25 Belal Shoer , Yova Kementchedjhieva

Text recognition remains a fundamental and extensively researched topic in computer vision, largely owing to its wide array of commercial applications. The challenging nature of the very problem however dictated a fragmentation of research…

Computer Vision and Pattern Recognition · Computer Science 2021-07-29 Ayan Kumar Bhunia , Aneeshan Sain , Pinaki Nath Chowdhury , Yi-Zhe Song

Visual Question Answering (VQA) concerns providing answers to Natural Language questions about images. Several deep neural network approaches have been proposed to model the task in an end-to-end fashion. Whereas the task is grounded in…

Artificial Intelligence · Computer Science 2020-02-03 Mehrdad Alizadeh , Barbara Di Eugenio

Text-based VQA aims at answering questions by reading the text present in the images. It requires a large amount of scene-text relationship understanding compared to the VQA task. Recent studies have shown that the question-answer pairs in…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Shamanthak Hegde , Soumya Jahagirdar , Shankar Gangisetty

Standard language models generate text by selecting tokens from a fixed, finite, and standalone vocabulary. We introduce a novel method that selects context-aware phrases from a collection of supporting documents. One of the most…

Computation and Language · Computer Science 2024-03-19 Bowen Cao , Deng Cai , Leyang Cui , Xuxin Cheng , Wei Bi , Yuexian Zou , Shuming Shi