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Document structure analysis, aka document layout analysis, is crucial for understanding both the physical layout and logical structure of documents, serving information retrieval, document summarization, knowledge extraction, etc.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Jiawei Wang , Kai Hu , Qiang Huo

When reading a document, glancing at the spatial layout of a document is an initial step to understand it roughly. Traditional document layout analysis (DLA) methods, however, offer only a superficial parsing of documents, focusing on basic…

Computer Vision and Pattern Recognition · Computer Science 2025-02-05 Yufan Chen , Ruiping Liu , Junwei Zheng , Di Wen , Kunyu Peng , Jiaming Zhang , Rainer Stiefelhagen

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

Translating renderings (e. g. PDFs, scans) into hierarchical document structures is extensively demanded in the daily routines of many real-world applications. However, a holistic, principled approach to inferring the complete hierarchical…

Machine Learning · Computer Science 2021-01-26 Johannes Rausch , Octavio Martinez , Fabian Bissig , Ce Zhang , Stefan Feuerriegel

The problem of document structure reconstruction refers to converting digital or scanned documents into corresponding semantic structures. Most existing works mainly focus on splitting the boundary of each element in a single document page,…

Computation and Language · Computer Science 2023-03-27 Jiefeng Ma , Jun Du , Pengfei Hu , Zhenrong Zhang , Jianshu Zhang , Huihui Zhu , Cong Liu

We propose a method to create document representations that reflect their internal structure. We modify Tree-LSTMs to hierarchically merge basic elements such as words and sentences into blocks of increasing complexity. Our Structure…

Computation and Language · Computer Science 2019-10-08 Khalil Mrini , Claudiu Musat , Michael Baeriswyl , Martin Jaggi

The continually increasing number of documents produced each year necessitates ever improving information processing methods for searching, retrieving, and organizing text. Central to these information processing methods is document…

The growing demand for effective tools to parse PDF-formatted texts, particularly structured documents such as textbooks, reveals the limitations of current methods developed mainly for research paper segmentation. This work addresses the…

Information Retrieval · Computer Science 2025-09-03 Sabine Wehnert , Harikrishnan Changaramkulath , Ernesto William De Luca

Structure extraction from document images has been a long-standing research topic due to its high impact on a wide range of practical applications. In this paper, we share our findings on employing a hierarchical semantic segmentation…

Computer Vision and Pattern Recognition · Computer Science 2020-09-18 Mausoom Sarkar , Milan Aggarwal , Arneh Jain , Hiresh Gupta , Balaji Krishnamurthy

The determination of the reading sequence of text is fundamental to document understanding. This problem is easily solved in pages where the text is organized into a sequence of lines and vertical alignment runs the height of the page…

Computation and Language · Computer Science 2021-11-25 Sarang Shrivastava , Afreen Shaikh , Shivani Shrivastava , Chung Ming Ho , Pradeep Reddy , Vijay Saraswat

Document layout analysis (DLA) is crucial for understanding the physical layout and logical structure of documents, serving information retrieval, document summarization, knowledge extraction, etc. However, previous studies have typically…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Jiawei Wang , Kai Hu , Qiang Huo

Text alignment finds application in tasks such as citation recommendation and plagiarism detection. Existing alignment methods operate at a single, predefined level and cannot learn to align texts at, for example, sentence and document…

Computation and Language · Computer Science 2020-10-06 Xuhui Zhou , Nikolaos Pappas , Noah A. Smith

Hypernym discovery is the problem of finding terms that have is-a relationship with a given term. We introduce a new context type, and a relatedness measure to differentiate hypernyms from other types of semantic relationships. Our Document…

Computation and Language · Computer Science 2018-12-03 Aswin Kannan , Shanmukha C Guttula , Balaji Ganesan , Hima P Karanam , Arun Kumar

Document layout analysis involves understanding the arrangement of elements within a document. This paper navigates the complexities of understanding various elements within document images, such as text, images, tables, and headings. The…

Computer Vision and Pattern Recognition · Computer Science 2024-05-02 Tahira Shehzadi , Didier Stricker , Muhammad Zeshan Afzal

Scene text detection and document layout analysis have long been treated as two separate tasks in different image domains. In this paper, we bring them together and introduce the task of unified scene text detection and layout analysis. The…

Computer Vision and Pattern Recognition · Computer Science 2022-06-06 Shangbang Long , Siyang Qin , Dmitry Panteleev , Alessandro Bissacco , Yasuhisa Fujii , Michalis Raptis

Form understanding depends on both textual contents and organizational structure. Although modern OCR performs well, it is still challenging to realize general form understanding because forms are commonly used and of various formats. The…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Zilong Wang , Mingjie Zhan , Xuebo Liu , Ding Liang

In large technology companies, the requirements for managing and organizing technical documents created by engineers and managers have increased dramatically in recent years, which has led to a higher demand for more scalable, accurate, and…

Machine Learning · Computer Science 2025-10-31 Shuo Jiang , Jie Hu , Christopher L. Magee , Jianxi Luo

Tables are information-rich structured objects in document images. While significant work has been done in localizing tables as graphic objects in document images, only limited attempts exist on table structure recognition. Most existing…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Sachin Raja , Ajoy Mondal , C. V. Jawahar

Document structure extraction has been a widely researched area for decades with recent works performing it as a semantic segmentation task over document images using fully-convolution networks. Such methods are limited by image resolution…

Machine Learning · Computer Science 2021-07-12 Milan Aggarwal , Hiresh Gupta , Mausoom Sarkar , Balaji Krishnamurthy

Efficiently navigating and understanding academic papers is crucial for scientific progress. Traditional linear formats like PDF and HTML can cause cognitive overload and obscure a paper's hierarchical structure, making it difficult to…

Human-Computer Interaction · Computer Science 2025-07-28 Zijian Zhang , Pan Chen , Fangshi Du , Runlong Ye , Oliver Huang , Michael Liut , Alán Aspuru-Guzik
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