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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

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

Tables serve as a fundamental format for representing structured relational data. While current language models (LMs) excel at many text-based tasks, they still face challenges in table understanding due to the complex characteristics of…

Computation and Language · Computer Science 2026-04-16 Lang Cao , Hanbing Liu

Tabular in-context learning (ICL) has recently achieved state-of-the-art (SOTA) performance on several tabular prediction tasks. Previously restricted to classification problems on small tables, recent advances such as TabPFN and TabICL…

Machine Learning · Computer Science 2025-11-04 Marco Spinaci , Marek Polewczyk , Maximilian Schambach , Sam Thelin

A large amount of information is stored in data tables. Users can search for data tables using a keyword-based query. A table is composed primarily of data values that are organized in rows and columns providing implicit structural…

Information Retrieval · Computer Science 2022-03-29 Mohamed Trabelsi , Zhiyu Chen , Shuo Zhang , Brian D. Davison , Jeff Heflin

Discrete reasoning over table-text documents (e.g., financial reports) gains increasing attention in recent two years. Existing works mostly simplify this challenge by manually selecting and transforming document pages to structured tables…

Computation and Language · Computer Science 2024-02-23 Fengbin Zhu , Chao Wang , Fuli Feng , Zifeng Ren , Moxin Li , Tat-Seng Chua

Relevant information in documents is often summarized in tables, helping the reader to identify useful facts. Most benchmark datasets support either document layout analysis or table understanding, but lack in providing data to apply both…

Computation and Language · Computer Science 2023-02-14 Andrea Gemelli , Emanuele Vivoli , Simone Marinai

Document-to-table (Doc2Table) extraction derives structured tables from unstructured documents under a target schema, enabling reliable and verifiable SQL-based data analytics. Although large language models (LLMs) have shown promise in…

Databases · Computer Science 2026-02-18 Yuxiang Guo , Zhuoran Du , Nan Tang , Kezheng Tang , Congcong Ge , Yunjun Gao

Understanding the semantics of tables at scale is crucial for tasks like data integration, preparation, and search. Table understanding methods aim at detecting a table's topic, semantic column types, column relations, or entities. With the…

Databases · Computer Science 2021-09-14 Madelon Hulsebos , Sneha Gathani , James Gale , Isil Dillig , Paul Groth , Çağatay Demiralp

Existing multimodal document question-answering (QA) systems predominantly rely on flat semantic retrieval, representing documents as a set of disconnected text chunks and largely neglecting their intrinsic hierarchical and relational…

Information Retrieval · Computer Science 2026-01-28 ShunLiang Fu , Yanxin Zhang , Yixin Xiang , Xiaoyu Du , Jinhui Tang

Documents are a common way to store and share information, with tables being an important part of many documents. However, there is no real common understanding of how to model documents and tables in particular. Because of this lack of…

Digital Libraries · Computer Science 2025-11-04 Sebastian Kempf , Frank Puppe

Table extraction from PDF and image documents is a ubiquitous task in the real-world. Perfect extraction quality is difficult to achieve with one single out-of-box model due to (1) the wide variety of table styles, (2) the lack of training…

Human-Computer Interaction · Computer Science 2021-02-18 Nancy Xin Ru Wang , Douglas Burdick , Yunyao Li

In the field of machine learning, data understanding is the practice of getting initial insights in unknown datasets. Such knowledge-intensive tasks require a lot of documentation, which is necessary for data scientists to grasp the meaning…

Databases · Computer Science 2018-06-14 Markus Schröder , Christian Jilek , Jörn Hees , Andreas Dengel

Recent advancements in the area of Computer Vision with state-of-art Neural Networks has given a boost to Optical Character Recognition (OCR) accuracies. However, extracting characters/text alone is often insufficient for relevant…

Computer Vision and Pattern Recognition · Computer Science 2018-12-17 Vishwanath D , Rohit Rahul , Gunjan Sehgal , Swati , Arindam Chowdhury , Monika Sharma , Lovekesh Vig , Gautam Shroff , Ashwin Srinivasan

Tables are pervasive in diverse documents, making table recognition (TR) a fundamental task in document analysis. Existing modular TR pipelines separately model table structure and content, leading to suboptimal integration and complex…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Chunxia Qin , Chenyu Liu , Pengcheng Xia , Jun Du , Baocai Yin , Bing Yin , Cong Liu

Tables are among the most widely used tools for representing structured data in research, business, medicine, and education. Although LLMs demonstrate strong performance in downstream tasks, their efficiency in processing tabular data…

Computation and Language · Computer Science 2025-08-27 Ekaterina Borisova , Fabio Barth , Nils Feldhus , Raia Abu Ahmad , Malte Ostendorff , Pedro Ortiz Suarez , Georg Rehm , Sebastian Möller

Tables organize valuable content in a concise and compact representation. This content is extremely valuable for systems such as search engines, Knowledge Graph's, etc, since they enhance their predictive capabilities. Unfortunately, tables…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Ahmed Nassar , Nikolaos Livathinos , Maksym Lysak , Peter Staar

Many organizations rely on data from government and third-party sources, and those sources rarely follow the same data formatting. This introduces challenges in integrating data from multiple sources or aligning external sources with…

Databases · Computer Science 2023-12-27 Arash Dargahi Nobari , Davood Rafiei

Understanding large, structured documents like scholarly articles, requests for proposals or business reports is a complex and difficult task. It involves discovering a document's overall purpose and subject(s), understanding the function…

Computation and Language · Computer Science 2018-07-27 Muhammad Mahbubur Rahman , Tim Finin

Tables form a central component in both exploratory data analysis and formal reporting procedures across many industries. These tables are often complex in their conceptual structure and in the computations that generate their individual…

Computation · Statistics 2023-06-30 Gabriel Becker , Adrian Waddell
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