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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

Legal practitioners often face a vast amount of documents. Lawyers, for instance, search for appropriate precedents favorable to their clients, while the number of legal precedents is ever-growing. Although legal search engines can assist…

Computation and Language · Computer Science 2022-11-04 Wonseok Hwang , Saehee Eom , Hanuhl Lee , Hai Jin Park , Minjoon Seo

Advances in large language models have notably enhanced the efficiency of information extraction from unstructured and semi-structured data sources. As these technologies become integral to various applications, establishing an objective…

With the recent developments in digitisation, there are increasing number of documents available online. There are several information extraction tools that are available to extract information from digitised documents. However, identifying…

Information Retrieval · Computer Science 2021-11-08 Richi Nayak , Thirunavukarasu Balasubramaniam , Sangeetha Kutty , Sachindra Banduthilaka , Erin Peterson

A real-world information extraction (IE) system for semi-structured document images often involves a long pipeline of multiple modules, whose complexity dramatically increases its development and maintenance cost. One can instead consider…

Computation and Language · Computer Science 2021-08-31 Wonseok Hwang , Hyunji Lee , Jinyeong Yim , Geewook Kim , Minjoon Seo

Important information that relates to a specific topic in a document is often organized in tabular format to assist readers with information retrieval and comparison, which may be difficult to provide in natural language. However, tabular…

Computer Vision and Pattern Recognition · Computer Science 2020-03-05 Xu Zhong , Elaheh ShafieiBavani , Antonio Jimeno Yepes

Tables are a powerful and popular tool for organizing and manipulating data. A vast number of tables can be found on the Web, which represents a valuable knowledge resource. The objective of this survey is to synthesize and present two…

Information Retrieval · Computer Science 2020-02-06 Shuo Zhang , Krisztian Balog

The scientific literature is growing faster than ever. Finding an expert in a particular scientific domain has never been as hard as today because of the increasing amount of publications and because of the ever growing diversity of…

Information Retrieval · Computer Science 2020-04-09 Robin Brochier , Antoine Gourru , Adrien Guille , Julien Velcin

We present an effective multifaceted system for exploratory analysis of highly heterogeneous document collections. Our system is based on intelligently tagging individual documents in a purely automated fashion and exploiting these tags in…

Computation and Language · Computer Science 2013-08-13 Arun S. Maiya , John P. Thompson , Francisco Loaiza-Lemos , Robert M. Rolfe

Tables are widely used in several types of documents since they can bring important information in a structured way. In scientific papers, tables can sum up novel discoveries and summarize experimental results, making the research…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Andrea Gemelli , Emanuele Vivoli , Simone Marinai

Most state-of-the-art information extraction approaches rely on token-level labels to find the areas of interest in text. Unfortunately, these labels are time-consuming and costly to create, and consequently, not available for many…

Computation and Language · Computer Science 2017-07-18 Rasmus Berg Palm , Dirk Hovy , Florian Laws , Ole Winther

We introduce VAREX (VARied-schema EXtraction), a benchmark for evaluating multimodal foundation models on structured data extraction from government forms. VAREX employs a Reverse Annotation pipeline that programmatically fills PDF…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Udi Barzelay , Ophir Azulai , Inbar Shapira , Idan Friedman , Foad Abo Dahood , Madison Lee , Abraham Daniels

Sentence-by-sentence information extraction from long documents is an exhausting and error-prone task. As the indicator of document skeleton, catalogs naturally chunk documents into segments and provide informative cascade semantics, which…

Computation and Language · Computer Science 2023-05-01 Tong Zhu , Guoliang Zhang , Zechang Li , Zijian Yu , Junfei Ren , Mengsong Wu , Zhefeng Wang , Baoxing Huai , Pingfu Chao , Wenliang Chen

Understanding the semantic meaning of content on the web through the lens of entities and concepts has many practical advantages. However, when building large-scale entity extraction systems, practitioners are facing unique challenges…

Computation and Language · Computer Science 2021-10-04 Xuanting Cai , Quanbin Ma , Pan Li , Jianyu Liu , Qi Zeng , Zhengkan Yang , Pushkar Tripathi

Extracting text objects from the PDF images is a challenging problem. The text data present in the PDF images contain certain useful information for automatic annotation, indexing etc. However variations of the text due to differences in…

Computer Vision and Pattern Recognition · Computer Science 2012-10-02 D. Sasirekha , E. Chandra

Template detection and content extraction are two of the main areas of information retrieval applied to the Web. They perform different analyses over the structure and content of webpages to extract some part of the document. However, their…

Information Retrieval · Computer Science 2022-07-19 Julián Alarte , Josep Silva

Large Language Models (LLMs) demonstrate exceptional performance in textual understanding and tabular reasoning tasks. However, their ability to comprehend and analyze hybrid text, containing textual and tabular data, remains unexplored.…

Computation and Language · Computer Science 2025-01-03 Chongjian Yue , Xinrun Xu , Xiaojun Ma , Lun Du , Zhiming Ding , Shi Han , Dongmei Zhang , Qi Zhang

Current abstractive summarization systems outperform their extractive counterparts, but their widespread adoption is inhibited by the inherent lack of interpretability. To achieve the best of both worlds, we propose EASE, an…

Computation and Language · Computer Science 2021-05-17 Haoran Li , Arash Einolghozati , Srinivasan Iyer , Bhargavi Paranjape , Yashar Mehdad , Sonal Gupta , Marjan Ghazvininejad

PDF files are primarily intended for human reading rather than automated processing. In addition, the heterogeneous content of PDFs, such as text, tables, and images, poses significant challenges for parsing and information extraction. To…

Computation and Language · Computer Science 2026-04-15 Omar El Bachyr , Yewei Song , Saad Ezzini , Jacques Klein , Tegawendé F. Bissyandé , Anas Zilali , Ulrick Ble , Anne Goujon

Table retrieval, essential for accessing information through tabular data, is less explored compared to text retrieval. The row/column structure and distinct fields of tables (including titles, headers, and cells) present unique challenges.…

Information Retrieval · Computer Science 2025-03-05 Da Li , Keping Bi , Jiafeng Guo , Xueqi Cheng