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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

The first phase of table recognition is to detect the tabular area in a document. Subsequently, the tabular structures are recognized in the second phase in order to extract information from the respective cells. Table detection and…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Khurram Azeem Hashmi , Marcus Liwicki , Didier Stricker , Muhammad Adnan Afzal , Muhammad Ahtsham Afzal , Muhammad Zeshan Afzal

In the field of pharmacology, there is a notable absence of centralized, comprehensive, and up-to-date repositories of PK data. This poses a significant challenge for R&D as it can be a time-consuming and challenging task to collect all the…

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

Language barriers in scientific documents hinder the diffusion and development of science and technologies. However, prior efforts in translating such documents largely overlooked the information in layouts. To bridge the gap, we introduce…

Computation and Language · Computer Science 2025-09-23 Rongxin Ouyang , Chang Chu , Zhikuang Xin , Xiangyao Ma

Localizing page elements/objects such as tables, figures, equations, etc. is the primary step in extracting information from document images. We propose a novel end-to-end trainable deep network, (CDeC-Net) for detecting tables present in…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Madhav Agarwal , Ajoy Mondal , C. V. Jawahar

Deep Convolutional Neural Networks (DCNNs) have recently been applied successfully to a variety of vision and multimedia tasks, thus driving development of novel solutions in several application domains. Document analysis is a particularly…

Computer Vision and Pattern Recognition · Computer Science 2018-04-18 I. Kavasidis , S. Palazzo , C. Spampinato , C. Pino , D. Giordano , D. Giuffrida , P. Messina

The abundance of the data in the Internet facilitates the improvement of extraction and processing tools. The trend in the open data publishing encourages the adoption of structured formats like CSV and RDF. However, there is still a…

Information Retrieval · Computer Science 2016-08-08 Mikhail Galkin , Dmitry Mouromtsev , Sören Auer

This study explores three approaches to processing table data in scientific papers to enhance extractive question answering and develop a software tool for the systematic review process. The methods evaluated include: (1) Optical Character…

Information Retrieval · Computer Science 2025-08-27 Dongyoun Kim , Hyung-do Choi , Youngsun Jang , John Kim

Table answering questions from business documents has many challenges that require understanding tabular structures, cross-document referencing, and additional numeric computations beyond simple search queries. This paper introduces a novel…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Phuc Nguyen , Nam Tuan Ly , Hideaki Takeda , Atsuhiro Takasu

We introduce WordScape, a novel pipeline for the creation of cross-disciplinary, multilingual corpora comprising millions of pages with annotations for document layout detection. Relating visual and textual items on document pages has…

As the Portable Document Format (PDF) file format increases in popularity, research in analysing its structure for text extraction and analysis is necessary. Detecting headings can be a crucial component of classifying and extracting…

Information Retrieval · Computer Science 2018-09-06 Sahib Singh Budhiraja , Vijay Mago

Table structure recognition is necessary for a comprehensive understanding of documents. Tables in unstructured business documents are tough to parse due to the high diversity of layouts, varying alignments of contents, and the presence of…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Sachin Raja , Ajoy Mondal , C V Jawahar

Information Extraction (IE) from the tables present in scientific articles is challenging due to complicated tabular representations and complex embedded text. This paper presents TabLeX, a large-scale benchmark dataset comprising table…

Information Retrieval · Computer Science 2021-09-07 Harsh Desai , Pratik Kayal , Mayank Singh

Document-based Visual Question Answering examines the document understanding of document images in conditions of natural language questions. We proposed a new document-based VQA dataset, PDF-VQA, to comprehensively examine the document…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Yihao Ding , Siwen Luo , Hyunsuk Chung , Soyeon Caren Han

Documents often contain complex physical structures, which make the Document Layout Analysis (DLA) task challenging. As a pre-processing step for content extraction, DLA has the potential to capture rich information in historical or…

Information Retrieval · Computer Science 2021-08-31 Shoubin Li , Xuyan Ma , Shuaiqun Pan , Jun Hu , Lin Shi , Qing Wang

Document parsing has garnered widespread attention as vision-language models (VLMs) advance OCR capabilities. However, the field remains fragmented across dozens of specialized models with varying strengths, forcing users to navigate…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Hao Feng , Wei Shi , Ke Zhang , Xiang Fei , Lei Liao , Dingkang Yang , Yongkun Du , Xuecheng Wu , Jingqun Tang , Yang Liu , Hong Chen , Can Huang

Fitting PDFs requires the integration of a broad range of datasets, both from data and theory side, into a unique framework. While for data the integration mainly consists in the standardization of the data format, for the theory…

High Energy Physics - Phenomenology · Physics 2022-11-22 Andrea Barontini , Alessandro Candido , Juan Cruz-Martinez , Felix Hekhorn , Giacomo Magni , Christopher Schwan

Extracting key information from documents represents a large portion of business workloads and therefore offers a high potential for efficiency improvements and process automation. With recent advances in Deep Learning, a plethora of Deep…

Information Retrieval · Computer Science 2025-07-21 Alexander Michael Rombach , Peter Fettke

With an abundance of research papers in deep learning, reproducibility or adoption of the existing works becomes a challenge. This is due to the lack of open source implementations provided by the authors. Further, re-implementing research…

Machine Learning · Computer Science 2017-11-13 Akshay Sethi , Anush Sankaran , Naveen Panwar , Shreya Khare , Senthil Mani