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Designing Optical Character Recognition (OCR) systems for India requires balancing linguistic diversity, document heterogeneity, and deployment constraints. In this paper, we study two training strategies for building multilingual OCR…

Computer Vision and Pattern Recognition · Computer Science 2026-02-19 Ali Faraz , Raja Kolla , Ashish Kulkarni , Shubham Agarwal

Recent advances in Large Language Models(LLMs) have enabled strong performance in long-form writing, but current training paradigms remain limited: Supervised Fine-Tuning (SFT) remains constrained by data saturation and performance…

Computation and Language · Computer Science 2026-04-21 Xuanyu Lei , Chenliang Li , Yuning Wu , Kaiming Liu , Weizhou Shen , Peng Li , Ming Yan , Fei Huang , Ya-Qin Zhang , Yang Liu

Online continual learning (OCL) aims to train neural networks incrementally from a non-stationary data stream with a single pass through data. Rehearsal-based methods attempt to approximate the observed input distributions over time with a…

Machine Learning · Computer Science 2022-11-15 Yaqian Zhang , Bernhard Pfahringer , Eibe Frank , Albert Bifet , Nick Jin Sean Lim , Yunzhe Jia

This paper proposes OCR++, an open-source framework designed for a variety of information extraction tasks from scholarly articles including metadata (title, author names, affiliation and e-mail), structure (section headings and body text,…

The development of large vision language models drives the demand for managing, and applying massive amounts of multimodal data, making OCR technology, which extracts information from visual images, increasingly popular. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Yufeng Zhong , Lei Chen , Xuanle Zhao , Wenkang Han , Liming Zheng , Jing Huang , Deyang Jiang , Yilin Cao , Lin Ma , Zhixiong Zeng

Continual Learning (CL) aims to develop agents emulating the human ability to sequentially learn new tasks while being able to retain knowledge obtained from past experiences. In this paper, we introduce the novel problem of…

Computer Vision and Pattern Recognition · Computer Science 2022-01-13 Enrico Fini , Stéphane Lathuilière , Enver Sangineto , Moin Nabi , Elisa Ricci

Continual learning (CL) has emerged as an important avenue of research in recent years, at the intersection of Machine Learning (ML) and Human-Robot Interaction (HRI), to allow robots to continually learn in their environments over…

We investigate how to train a high quality optical character recognition (OCR) model for difficult historical typefaces on degraded paper. Through extensive grid searches, we obtain a neural network architecture and a set of optimal data…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Bernhard Liebl , Manuel Burghardt

Optical Character Recognition (OCR) systems have been widely used in various of application scenarios. Designing an OCR system is still a challenging task. In previous work, we proposed a practical ultra lightweight OCR system (PP-OCR) to…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Yuning Du , Chenxia Li , Ruoyu Guo , Cheng Cui , Weiwei Liu , Jun Zhou , Bin Lu , Yehua Yang , Qiwen Liu , Xiaoguang Hu , Dianhai Yu , Yanjun Ma

Handwritten text recognition (HTR) and machine translation continue to pose significant challenges, particularly for low-resource languages like Marathi, which lack large digitized corpora and exhibit high variability in handwriting styles.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Shubham Kumar Nigam , Parjanya Aditya Shukla , Noel Shallum , Arnab Bhattacharya

Optical character recognition (OCR) technology has been widely used in various scenes, as shown in Figure 1. Designing a practical OCR system is still a meaningful but challenging task. In previous work, considering the efficiency and…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Chenxia Li , Weiwei Liu , Ruoyu Guo , Xiaoting Yin , Kaitao Jiang , Yongkun Du , Yuning Du , Lingfeng Zhu , Baohua Lai , Xiaoguang Hu , Dianhai Yu , Yanjun Ma

Optical Character Recognition (OCR) is one of the important fields in image processing and pattern recognition domain. Handwritten character recognition has always been a challenging task. Only a little work can be traced towards the…

Computer Vision and Pattern Recognition · Computer Science 2013-01-03 H. R. Mamatha , S. Karthik , Murthy K. Srikanta

With the advent of digital optical scanners, a lot of paper-based books, textbooks, magazines, articles, and documents are being transformed into an electronic version that can be manipulated by a computer. For this purpose, OCR, short for…

Computation and Language · Computer Science 2012-04-03 Youssef Bassil , Mohammad Alwani

Continual Learning (CL) aims to incrementally acquire new knowledge while mitigating catastrophic forgetting. Within this setting, Online Continual Learning (OCL) focuses on updating models promptly and incrementally from single or small…

Machine Learning · Computer Science 2025-12-19 Giovanni Donghi , Luca Pasa , Daniele Zambon , Cesare Alippi , Nicolò Navarin

On-demand curation (ODC) tools like Paygo, KATARA, and Mimir allow users to defer expensive curation effort until it is necessary. In contrast to classical databases that do not respond to queries over potentially erroneous data, ODC…

Databases · Computer Science 2016-06-08 Poonam Kumari , Said Achmiz , Oliver Kennedy

Online continual learning (OCL) refers to the ability of a system to learn over time from a continuous stream of data without having to revisit previously encountered training samples. Learning continually in a single data pass is crucial…

Machine Learning · Computer Science 2020-03-23 German I. Parisi , Vincenzo Lomonaco

Reading text from images or scanned documents via OCR models has been a longstanding focus of researchers. Intuitively, text reading is perceived as a straightforward perceptual task, and existing work primarily focuses on constructing…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Yufeng Zhong , Lei Chen , Zhixiong Zeng , Xuanle Zhao , Deyang Jiang , Liming Zheng , Jing Huang , Haibo Qiu , Peng Shi , Siqi Yang , Lin Ma

Initiation, monitoring, and evaluation of development programmes can involve field-based data collection about project activities. This data collection through digital devices may not always be feasible though, for reasons such as…

Artificial Intelligence · Computer Science 2025-04-29 Devesh Pant , Dibyendu Talukder , Deepak Kumar , Rachit Pandey , Aaditeshwar Seth , Chetan Arora

Optical Character Recognition (OCR) has been a topic of interest for many years. It is defined as the process of digitizing a document image into its constituent characters. Despite decades of intense research, developing OCR with…

Computer Vision and Pattern Recognition · Computer Science 2017-10-17 Noman Islam , Zeeshan Islam , Nazia Noor

Handwriting recognition technology allows recognizing a written text from a given data. The recognition task can target letters, symbols, or words, and the input data can be a digital image or recorded by various sensors. A wide range of…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Hilda Azimi , Steven Chang , Jonathan Gold , Koray Karabina