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Computer aided Tabular Data Extraction has always been a very challenging and error prone task because it demands both Spectral and Spatial Sanity of data. In this paper we discuss an approach for Tabular Data Extraction in the realm of…

Computation and Language · Computer Science 2021-05-20 Saumya Banthia , Anantha Sharma , Ravi Mangipudi

In recent years there have been multiple successful attempts tackling document processing problems separately by designing task specific hand-tuned strategies. We argue that the diversity of historical document processing tasks prohibits to…

Computer Vision and Pattern Recognition · Computer Science 2019-08-15 Sofia Ares Oliveira , Benoit Seguin , Frederic Kaplan

The extraction of relevant information carried out by named entities in handwriting documents is still a challenging task. Unlike traditional information extraction approaches that usually face text transcription and named entity…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Ahmed Cheikh Rouhoua , Marwa Dhiaf , Yousri Kessentini , Sinda Ben Salem

The digital conversion of information stored in documents is a great source of knowledge. In contrast to the documents text, the conversion of the embedded documents graphics, such as charts and plots, has been much less explored. We…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Joseph Shtok , Sivan Harary , Ophir Azulai , Adi Raz Goldfarb , Assaf Arbelle , Leonid Karlinsky

Recent advances in vision-language models have demonstrated remarkable performance across diverse multi-modal tasks, including document question answering that leverages structured visual cues from text, tables, and figures. However, unlike…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Joonmyung Choi , Sanghyeok Lee , Jongha Kim , Sehyung Kim , Dohwan Ko , Jihyung Kil , Hyunwoo J. Kim

Information extraction (IE) from Visually Rich Documents (VRDs) containing layout features along with text is a critical and well-studied task. Specialized non-LLM NLP-based solutions typically involve training models using both textual and…

Information Retrieval · Computer Science 2025-05-21 Aniket Bhattacharyya , Anurag Tripathi , Ujjal Das , Archan Karmakar , Amit Pathak , Maneesh Gupta

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

Many documents, that we call templatized documents, are programmatically generated by populating fields in a visual template. Effective data extraction from these documents is crucial to supporting downstream analytical tasks. Current data…

Databases · Computer Science 2025-01-14 Yiming Lin , Mawil Hasan , Rohan Kosalge , Alvin Cheung , Aditya G. Parameswaran

A constantly growing amount of information is available through the web. Unfortunately, extracting useful content from this massive amount of data still remains an open issue. The lack of standard data models and structures forces…

Databases · Computer Science 2016-03-25 Juan M. Tirado , Ovidiu Serban , Qiang Guo , Eiko Yoneki

Feature extraction is a critical component of many applied data science workflows. In recent years, rapid advances in artificial intelligence and machine learning have led to an explosion of feature extraction tools and services that allow…

Computer Vision and Pattern Recognition · Computer Science 2017-02-22 Quinten McNamara , Alejandro de la Vega , Tal Yarkoni

Most existing work on event extraction has focused on sentence-level texts and presumes the identification of a trigger-span -- a word or phrase in the input that evokes the occurrence of an event of interest. Event arguments are then…

Computation and Language · Computer Science 2025-06-30 Shaden Shaar , Wayne Chen , Maitreyi Chatterjee , Barry Wang , Wenting Zhao , Claire Cardie

Keyphrase extraction is the task of extracting a small set of phrases that best describe a document. Most existing benchmark datasets for the task typically have limited numbers of annotated documents, making it challenging to train…

Computation and Language · Computer Science 2020-10-26 Tuan Manh Lai , Trung Bui , Doo Soon Kim , Quan Hung Tran

Information Extraction (IE) from document images is challenging due to the high variability of layout formats. Deep models such as LayoutLM and BROS have been proposed to address this problem and have shown promising results. However, they…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Abhishek Singh , Venkatapathy Subramanian , Ayush Maheshwari , Pradeep Narayan , Devi Prasad Shetty , Ganesh Ramakrishnan

Document-level information extraction (IE) is a crucial task in natural language processing (NLP). This paper conducts a systematic review of recent document-level IE literature. In addition, we conduct a thorough error analysis with…

Computation and Language · Computer Science 2023-09-26 Hanwen Zheng , Sijia Wang , Lifu Huang

Information extraction (IE) plays very important role in natural language processing (NLP) and is fundamental to many NLP applications that used to extract structured information from unstructured text data. Heuristic-based searching and…

Computation and Language · Computer Science 2023-07-04 Shiyu Yuan , Carlo Lipizzi

We present SummaRuNNer, a Recurrent Neural Network (RNN) based sequence model for extractive summarization of documents and show that it achieves performance better than or comparable to state-of-the-art. Our model has the additional…

Computation and Language · Computer Science 2016-11-15 Ramesh Nallapati , Feifei Zhai , Bowen Zhou

For a terminal alphabet $\Sigma$ and an attribute alphabet $\Gamma$, a $(\Sigma, \Gamma)$-extractor is a function that maps every string over $\Sigma$ to a table with a column per attribute and with sets of positions of $w$ as cell entries.…

Formal Languages and Automata Theory · Computer Science 2026-03-18 Markus L. Schmid

We are presenting a set of multilingual text analysis tools that can help analysts in any field to explore large document collections quickly in order to determine whether the documents contain information of interest, and to find the…

Computation and Language · Computer Science 2007-05-23 Camelia Ignat , Bruno Pouliquen , Ralf Steinberger , Tomaz Erjavec

The escalating number of pending cases is a growing concern world-wide. Recent advancements in digitization have opened up possibilities for leveraging artificial intelligence (AI) tools in the processing of legal documents. Adopting a…

Information Retrieval · Computer Science 2023-10-19 Subinay Adhikary , Sagnik Das , Sagnik Saha , Procheta Sen , Dwaipayan Roy , Kripabandhu Ghosh

Document-level relation extraction is a complex human process that requires logical inference to extract relationships between named entities in text. Existing approaches use graph-based neural models with words as nodes and edges as…

Computation and Language · Computer Science 2019-09-04 Fenia Christopoulou , Makoto Miwa , Sophia Ananiadou