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Document Understanding is a foundational AI capability with broad applications, and Document Question Answering (DocQA) is a key evaluation task. Traditional methods convert the document into text for processing by Large Language Models…

Computation and Language · Computer Science 2025-09-10 Xixi Wu , Yanchao Tan , Nan Hou , Ruiyang Zhang , Hong Cheng

Semi-structured documents integrate diverse interleaved data elements (e.g., tables, charts, hierarchical paragraphs) arranged in various and often irregular layouts. These documents are widely observed across domains and account for a…

Information Retrieval · Computer Science 2026-04-15 Bangrui Xu , Qihang Yao , Zirui Tang , Xuanhe Zhou , Yeye He , Shihan Yu , Qianqian Xu , Bin Wang , Guoliang Li , Conghui He , Fan Wu

Historical Document Processing is the process of digitizing written material from the past for future use by historians and other scholars. It incorporates algorithms and software tools from various subfields of computer science, including…

Computer Vision and Pattern Recognition · Computer Science 2020-09-14 James P. Philips , Nasseh Tabrizi

Benchmarks that reflect the diversity and complexity of real-world documents are essential for accurately evaluating Automatic Text Recognition (ATR) systems, especially Vision-Large Language Models (vLLMs). Although recent models…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Mélodie Boillet , Solène Tarride , Christopher Kermorvant

Optical Character Recognition (OCR) technology finds applications in digitizing books and unstructured documents, along with applications in other domains such as mobility statistics, law enforcement, traffic, security systems, etc. The…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 Aishik Rakshit , Samyak Mehta , Anirban Dasgupta

Usually, programming languages have official documentation to guide developers with APIs, methods, and classes. However, researchers identified insufficient or inadequate documentation examples and flaws with the API's complex structure as…

Software Engineering · Computer Science 2023-12-05 AmirHossein Naghshzan , Latifa Guerrouj , Olga Baysal

This paper presents Callico, a web-based open source platform designed to simplify the annotation process in document recognition projects. The move towards data-centric AI in machine learning and deep learning underscores the importance of…

Computer Vision and Pattern Recognition · Computer Science 2024-05-03 Christopher Kermorvant , Eva Bardou , Manon Blanco , Bastien Abadie

The objective of the paper is to recognize handwritten samples of lower case Roman script using Tesseract open source Optical Character Recognition (OCR) engine under Apache License 2.0. Handwritten data samples containing isolated and…

Computer Vision and Pattern Recognition · Computer Science 2010-03-31 Sandip Rakshit , Subhadip Basu

Understanding documents is central to many real-world tasks but remains a challenging topic. Unfortunately, there is no well-established consensus on how to comprehensively evaluate document understanding abilities, which significantly…

Computation and Language · Computer Science 2023-05-17 Ruoxi Xu , Hongyu Lin , Xinyan Guan , Xianpei Han , Yingfei Sun , Le Sun

We report upon the results of a research and prototype building project \emph{Worldly~OCR} dedicated to developing new, more accurate image-to-text conversion software for several languages and writing systems. These include the cursive…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Marek Rychlik , Dwight Nwaigwe , Yan Han , Dylan Murphy

Document dewarping from a distorted camera-captured image is of great value for OCR and document understanding. The document boundary plays an important role which is more evident than the inner region in document dewarping. Current…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Beiya Dai , Xing li , Qunyi Xie , Yulin Li , Xiameng Qin , Chengquan Zhang , Kun Yao , Junyu Han

OCR (Optical Character Recognition) is a technology that offers comprehensive alphanumeric recognition of handwritten and printed characters at electronic speed by merely scanning the document. Recently, the understanding of visual data has…

Computer Vision and Pattern Recognition · Computer Science 2023-07-12 Atman Mishra , A. Sharath Ram , Kavyashree C

Document parsing is essential for analyzing complex document structures and extracting fine-grained information, supporting numerous downstream applications. However, existing methods often require integrating multiple independent models to…

Computation and Language · Computer Science 2025-05-23 Mingxu Chai , Ziyu Shen , Chong Zhang , Yue Zhang , Xiao Wang , Shihan Dou , Jihua Kang , Jiazheng Zhang , Qi Zhang

This paper surveys the current state of the art in document automation (DA). The objective of DA is to reduce the manual effort during the generation of documents by automatically creating and integrating input from different sources and…

Computation and Language · Computer Science 2023-08-21 Mohammad Ahmadi Achachlouei , Omkar Patil , Tarun Joshi , Vijayan N. Nair

Software documentation is an essential but labor intensive task that often requires a dedicated team of developers to ensure coverage and accuracy. Good documentation will help shorten the development cycle and improve the overall team…

Software Engineering · Computer Science 2017-01-31 Thomas Zheng , Jeff Shaw , Sergey Kozlov

In this work, we propose a new framework, called Document Image Transformer (DocTr), to address the issue of geometry and illumination distortion of the document images. Specifically, DocTr consists of a geometric unwarping transformer and…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Hao Feng , Yuechen Wang , Wengang Zhou , Jiajun Deng , Houqiang Li

Modern information and communication systems have become increasingly challenging to manage. The ubiquitous system logs contain plentiful information and are thus widely exploited as an alternative source for system management. As log files…

Information Retrieval · Computer Science 2024-02-15 Tianzhu Zhang , Han Qiu , Gabriele Castellano , Myriana Rifai , Chung Shue Chen , Fabio Pianese

Solving complex reasoning tasks may involve visual understanding, domain knowledge retrieval, numerical calculation, and multi-step reasoning. Existing methods augment large language models (LLMs) with external tools but are restricted to…

Machine Learning · Computer Science 2026-04-15 Pan Lu , Bowen Chen , Sheng Liu , Rahul Thapa , Joseph Boen , James Zou

In this paper, we present an Optical Character Recognition (OCR) system specifically designed for the accurate recognition and digitization of Greek polytonic texts. By leveraging the combined strengths of convolutional layers for feature…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Perifanos Konstantinos , Goutsos Dionisis

We present \textbf{LightOnOCR-2-1B}, a 1B-parameter end-to-end multilingual vision--language model that converts document images (e.g., PDFs) into clean, naturally ordered text without brittle OCR pipelines. Trained on a large-scale,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Said Taghadouini , Adrien Cavaillès , Baptiste Aubertin