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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

Existing methods for Table Structure Recognition (TSR) from camera-captured or scanned documents perform poorly on complex tables consisting of nested rows / columns, multi-line texts and missing cell data. This is because current…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Arushi Jain , Shubham Paliwal , Monika Sharma , Lovekesh Vig

Extracting table contents from documents such as scientific papers and financial reports and converting them into a format that can be processed by large language models is an important task in knowledge information processing. End-to-end…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Takaya Kawakatsu

Handling heterogeneous data in tabular datasets poses a significant challenge for deep learning models. While attention-based architectures and self-supervised learning have achieved notable success, their application to tabular data…

Machine Learning · Computer Science 2025-02-27 Anay Majee , Maria Xenochristou , Wei-Peng Chen

Scientific documents contain tables that list important information in a concise fashion. Structure and content extraction from tables embedded within PDF research documents is a very challenging task due to the existence of visual features…

Information Retrieval · Computer Science 2022-11-01 Pratik Kayal , Mrinal Anand , Harsh Desai , Mayank Singh

Automatic table detection in PDF documents has achieved a great success but tabular data extraction are still challenging due to the integrity and noise issues in detected table areas. The accurate data extraction is extremely crucial in…

Computation and Language · Computer Science 2022-05-24 Siwen Luo , Mengting Wu , Yiwen Gong , Wanying Zhou , Josiah Poon

Tabular data, widely used in industries like healthcare, finance, and transportation, presents unique challenges for deep learning due to its heterogeneous nature and lack of spatial structure. This survey reviews the evolution of deep…

Machine Learning · Computer Science 2024-10-17 Shriyank Somvanshi , Subasish Das , Syed Aaqib Javed , Gian Antariksa , Ahmed Hossain

Document structure analysis, such as zone segmentation and table recognition, is a complex problem in document processing and is an active area of research. The recent success of deep learning in solving various computer vision and machine…

Computer Vision and Pattern Recognition · Computer Science 2019-07-04 Shah Rukh Qasim , Hassan Mahmood , Faisal Shafait

Table structure recognition is a crucial part of document image analysis domain. Its difficulty lies in the need to parse the physical coordinates and logical indices of each cell at the same time. However, the existing methods are…

Computer Vision and Pattern Recognition · Computer Science 2022-09-01 Zengyuan Guo , Yuechen Yu , Pengyuan Lv , Chengquan Zhang , Haojie Li , Zhihui Wang , Kun Yao , Jingtuo Liu , Jingdong Wang

Tabular data learning has extensive applications in deep learning but its existing embedding techniques are limited in numerical and categorical features such as the inability to capture complex relationships and engineering. This paper…

Machine Learning · Computer Science 2024-09-02 Yuqian Wu , Hengyi Luo , Raymond S. T. Lee

Large amount of public data produced by enterprises are in semi-structured PDF form. Tabular data extraction from reports and other published data in PDF format is of interest for various data consolidation purposes such as analysing and…

Information Retrieval · Computer Science 2019-01-16 Rahul Anand , Hye-Young Paik , Cheng Wang

Table annotation is crucial for making web and enterprise tables usable in downstream NLP applications. Unlike textual data where learning semantically rich token or sentence embeddings often suffice, tables are structured combinations of…

Machine Learning · Computer Science 2026-04-22 Ehsan Hoseinzade , Ke Wang , Anandharaju Durai Raju

Automated document processing for tabular information extraction is highly desired in many organizations, from industry to government. Prior works have addressed this problem under table detection and table structure detection tasks.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Yakup Akkaya , Murat Simsek , Burak Kantarci , Shahzad Khan

Tabular data is a crucial form of information expression, which can organize data in a standard structure for easy information retrieval and comparison. However, in financial industry and many other fields tables are often disclosed in…

Computer Vision and Pattern Recognition · Computer Science 2020-03-18 Yiren Li , Zheng Huang , Junchi Yan , Yi Zhou , Fan Ye , Xianhui Liu

Spreadsheet table detection is the task of detecting all tables on a given sheet and locating their respective ranges. Automatic table detection is a key enabling technique and an initial step in spreadsheet data intelligence. However, the…

Information Retrieval · Computer Science 2021-06-28 Haoyu Dong , Shijie Liu , Shi Han , Zhouyu Fu , Dongmei Zhang

Tabular structures are used to present crucial information in a structured and crisp manner. Detection of such regions is of great importance for proper understanding of a document. Tabular structures can be of various layouts and types.…

Computer Vision and Pattern Recognition · Computer Science 2020-08-28 Soumyadeep Dey , Jayanta Mukhopadhyay , Shamik Sural

A table arranging data in rows and columns is a very effective data structure, which has been widely used in business and scientific research. Considering large-scale tabular data in online and offline documents, automatic table recognition…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Wenyuan Xue , Baosheng Yu , Wen Wang , Dacheng Tao , Qingyong Li

We propose a novel high-performance and interpretable canonical deep tabular data learning architecture, TabNet. TabNet uses sequential attention to choose which features to reason from at each decision step, enabling interpretability and…

Machine Learning · Computer Science 2020-12-10 Sercan O. Arik , Tomas Pfister

In this paper, we propose DEXTER, an end to end system to extract information from tables present in medical health documents, such as electronic health records (EHR) and explanation of benefits (EOB). DEXTER consists of four sub-system…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Nandhinee PR , Harinath Krishnamoorthy , Koushik Srivatsan , Anil Goyal , Sudarsun Santhiappan

A large amount of document data exists in unstructured form such as raw images without any text information. Designing a practical document image analysis system is a meaningful but challenging task. In previous work, we proposed an…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Chenxia Li , Ruoyu Guo , Jun Zhou , Mengtao An , Yuning Du , Lingfeng Zhu , Yi Liu , Xiaoguang Hu , Dianhai Yu