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Information extraction (IE) aims to extract structural knowledge from plain natural language texts. Recently, generative Large Language Models (LLMs) have demonstrated remarkable capabilities in text understanding and generation. As a…

Computation and Language · Computer Science 2024-11-01 Derong Xu , Wei Chen , Wenjun Peng , Chao Zhang , Tong Xu , Xiangyu Zhao , Xian Wu , Yefeng Zheng , Yang Wang , Enhong Chen

Document parsing (DP) transforms unstructured or semi-structured documents into structured, machine-readable representations, enabling downstream applications such as knowledge base construction and retrieval-augmented generation (RAG).…

Event extraction is essential for event understanding and analysis. It supports tasks such as document summarization and decision-making in emergency scenarios. However, existing event extraction approaches have limitations: (1)…

Computation and Language · Computer Science 2026-04-24 Praval Sharma

As web agents (e.g., Deep Research) routinely consume massive volumes of web pages to gather and analyze information, LLM context management -- under large token budgets and low signal density -- emerges as a foundational, high-importance,…

Information Retrieval · Computer Science 2025-12-09 Yihan Chen , Benfeng Xu , Xiaorui Wang , Zhendong Mao

Key Information Extraction (KIE) underpins the understanding of visual documents (e.g., receipts and contracts) by extracting precise semantic content and accurately capturing spatial structure. Yet existing multimodal large language models…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Son Nguyen , Giang Nguyen , Hung Dao , Thao Do , Daeyoung Kim

Extracting meaningful entities belonging to predefined categories from Visually-rich Form-like Documents (VFDs) is a challenging task. Visual and layout features such as font, background, color, and bounding box location and size provide…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Hao Wang , Xiahua Chen , Rui Wang , Chenhui Chu

Large language models (LLMs) pre-trained on massive corpora have demonstrated impressive few-shot learning ability on many NLP tasks. A common practice is to recast the task into a text-to-text format such that generative LLMs of natural…

Computation and Language · Computer Science 2023-05-12 Peng Li , Tianxiang Sun , Qiong Tang , Hang Yan , Yuanbin Wu , Xuanjing Huang , Xipeng Qiu

Large Language Models (LLMs) have demonstrated remarkable capabilities in text comprehension, but their ability to process complex, hierarchical tabular data remains underexplored. We present a novel approach to extracting structured data…

Computation and Language · Computer Science 2025-11-25 Vikram Aggarwal , Jay Kulkarni , Aditi Mascarenhas , Aakriti Narang , Siddarth Raman , Ajay Shah , Susan Thomas

Visually Rich Documents (VRDs) play a vital role in domains such as academia, finance, healthcare, and marketing, as they convey information through a combination of text, layout, and visual elements. Traditional approaches to extracting…

Computation and Language · Computer Science 2025-06-23 Yihao Ding , Soyeon Caren Han , Jean Lee , Eduard Hovy

Question answering over visually rich documents (VRDs) requires reasoning not only over isolated content but also over documents' structural organization and cross-page dependencies. However, conventional retrieval-augmented generation…

Computation and Language · Computer Science 2026-03-03 Zhivar Sourati , Zheng Wang , Marianne Menglin Liu , Yazhe Hu , Mengqing Guo , Sujeeth Bharadwaj , Kyu Han , Tao Sheng , Sujith Ravi , Morteza Dehghani , Dan Roth

Enterprise documents, such as forms and reports, embed critical information for downstream applications like data archiving, automated workflows, and analytics. Although generalist Vision Language Models (VLMs) perform well on established…

Computation and Language · Computer Science 2026-02-13 Mathieu Sibue , Andres Muñoz Garza , Samuel Mensah , Pranav Shetty , Zhiqiang Ma , Xiaomo Liu , Manuela Veloso

Extracting structured information from visual documents (Visual Information Extraction, VIE) is a cornerstone of business automation. While recent Multimodal Large Language Models (MLLMs) have shown promising capabilities, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Yandi Wang , Libin Zhan , Ziwei Huang , Tiancheng Luo , Yuxuan Jiang , Wang Dong , Leilei Gan , Jun Chen

Diagrams play a crucial role in visually conveying complex relationships and processes within business documentation. Despite recent advances in Vision-Language Models (VLMs) for various image understanding tasks, accurately identifying and…

Software Engineering · Computer Science 2025-02-10 Shue Shiinoki , Ryo Koshihara , Hayato Motegi , Masumi Morishige

Vision-Language Models (VLMs) have shown strong capabilities in document understanding, particularly in identifying and extracting textual information from complex documents. Despite this, accurately localizing answers within documents…

Computation and Language · Computer Science 2025-09-16 Alessio Chen , Simone Giovannini , Andrea Gemelli , Fabio Coppini , Simone Marinai

With the rapid development of large language models (LLMs), more and more researchers have paid attention to information extraction based on LLMs. However, there are still some spaces to improve in the existing related methods. First,…

Computation and Language · Computer Science 2026-03-24 Jiang Liu , Ge Qiu , Hao Fei , Dongdong Xie , Jinbo Li , Fei Li , Chong Teng , Donghong Ji

Research in Document Intelligence and especially in Document Key Information Extraction (DocKIE) has been mainly solved as Token Classification problem. Recent breakthroughs in both natural language processing (NLP) and computer vision…

Computation and Language · Computer Science 2023-04-24 Laurent Lam , Pirashanth Ratnamogan , Joël Tang , William Vanhuffel , Fabien Caspani

Document-level Information Extraction (DocIE) aims to produce an output template with the entities, relations, and events of interest occurring in the given document. Standard practices include prompting decoder-only LLMs using greedy…

Computation and Language · Computer Science 2026-05-29 Mikel Zubillaga , Oscar Sainz , Oier Lopez de Lacalle , Eneko Agirre

Document Information Extraction (DIE) aims to extract structured information from Visually Rich Documents (VRDs). Previous full-training approaches have demonstrated strong performance but may struggle with generalization to unseen data. In…

Computation and Language · Computer Science 2024-12-24 Jinyu Zhang , Zhiyuan You , Jize Wang , Xinyi Le

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

Key Information Extraction (KIE) from real-world documents remains challenging due to substantial variations in layout structures, visual quality, and task-specific information requirements. Recent Large Multimodal Models (LMMs) have shown…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Yifan Ji , Zhipeng Xu , Zhenghao Liu , Zulong Chen , Qian Zhang , Zhibo Yang , Junyang Lin , Yu Gu , Ge Yu , Maosong Sun