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Information Extraction is a well-researched area of Natural Language Processing with applications in web search and question answering concerned with identifying entities and relationships between them as expressed in a given context,…

Information Retrieval · Computer Science 2020-11-17 Erin Macdonald , Denilson Barbosa

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

Table extraction is an important but still unsolved problem. In this paper, we introduce a flexible and modular table extraction system. We develop two rule-based algorithms that perform the complete table recognition process, including…

Computer Vision and Pattern Recognition · Computer Science 2021-12-03 Marcin Namysl , Alexander M. Esser , Sven Behnke , Joachim Köhler

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

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

Table Detection has become a fundamental task for visually rich document understanding with the surging number of electronic documents. However, popular public datasets widely used in related studies have inherent limitations, including…

Information Retrieval · Computer Science 2023-11-09 Bin Xiao , Murat Simsek , Burak Kantarci , Ala Abu Alkheir

Choropleth maps are a common visual representation for region-specific tabular data and are used in a number of different venues (newspapers, articles, etc). These maps are human-readable but are often challenging to deal with when trying…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Shuaichen Chang , David Palzer , Jialin Li , Eric Fosler-Lussier , Ningchuan Xiao

How to generate a large, realistic set of tables along with joinability relationships, to stress-test dataset discovery methods? Dataset discovery methods aim to automatically identify related data assets in a data lake. The development and…

Databases · Computer Science 2025-07-09 Zhenwei Dai , Chuan Lei , Asterios Katsifodimos , Xiao Qin , Christos Faloutsos , Huzefa Rangwala

Extracting tables from documents is a crucial task in any document conversion pipeline. Recently, transformer-based models have demonstrated that table-structure can be recognized with impressive accuracy using Image-to-Markup-Sequence…

Computer Vision and Pattern Recognition · Computer Science 2023-05-08 Maksym Lysak , Ahmed Nassar , Nikolaos Livathinos , Christoph Auer , Peter Staar

Tables on the web constitute a valuable data source for many applications, like factual search and knowledge base augmentation. However, as genuine tables containing relational knowledge only account for a small proportion of tables on the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Babette Bühler , Heiko Paulheim

Recent large language models (LLMs) have advanced table understanding capabilities but rely on converting tables into text sequences. While multimodal large language models (MLLMs) enable direct visual processing, they face limitations in…

Computation and Language · Computer Science 2025-02-26 Bohao Yang , Yingji Zhang , Dong Liu , André Freitas , Chenghua Lin

Question Answering over Tabular Data (Table QA) presents unique challenges due to the diverse structure, size, and data types of real-world tables. The SemEval 2025 Task 8 (DataBench) introduced a benchmark composed of large-scale,…

Computation and Language · Computer Science 2025-09-12 Rishit Tyagi , Mohit Gupta , Rahul Bouri

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

Transforming dense, detailed, unstructured text into an interpretable and summarised table, also colloquially known as Text-to-Table generation, is an essential task for information retrieval. Current methods, however, miss out on how and…

Computation and Language · Computer Science 2025-05-30 Naman Ahuja , Fenil Bardoliya , Chitta Baral , Vivek Gupta

Abstract--- Table detection and extraction has been studied in the context of documents like reports, where tables are clearly outlined and stand out from the document structure visually. We study this topic in a rather more challenging…

Information Retrieval · Computer Science 2021-08-20 Martin Holeček , Antonín Hoskovec , Petr Baudiš , Pavel Klinger

Table Question Answering (TQA) is an important but under-explored task. Most of the existing QA datasets are in unstructured text format and only few of them use tables as the context. To the best of our knowledge, none of TQA datasets…

Computation and Language · Computer Science 2022-07-07 Man Luo , Sharad Saxena , Swaroop Mishra , Mihir Parmar , Chitta Baral

Fact verification based on structured data is challenging as it requires models to understand both natural language and symbolic operations performed over tables. Although pre-trained language models have demonstrated a strong capability in…

Computation and Language · Computer Science 2021-09-24 Xiaoyu Yang , Xiaodan Zhu

Enabling question answering over tables and databases in natural language has become a key capability in the democratization of insights from tabular data sources. These systems first require retrieval of data that is relevant to a given…

Information Retrieval · Computer Science 2026-03-10 Wojciech Kosiuk , Xingyu Ji , Yeounoh Chung , Fatma Özcan , Madelon Hulsebos

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

In talent management systems, critical information often resides in complex tabular formats, presenting significant retrieval challenges for conventional language models. These challenges are pronounced when processing Talent documentation…

Artificial Intelligence · Computer Science 2025-07-02 Varun Mannam , Fang Wang , Chaochun Liu , Xin Chen