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In real practice, questions are typically complex and knowledge-intensive, requiring Large Language Models (LLMs) to recognize the multifaceted nature of the question and reason across multiple information sources. Iterative and adaptive…

Computation and Language · Computer Science 2025-12-05 Boyi Zhang , Zhuo Liu , Hangfeng He

This article introduces the Data Retrieval Web Engine (also referred to as doctor web), a flexible and modular tool for extracting structured data from web pages using a simple query language. We discuss the engineering challenges addressed…

Databases · Computer Science 2025-04-09 Ylli Prifti , Alessandro Provetti , Pasquale de Meo

Retrieving and extracting knowledge from extensive research documents and large databases presents significant challenges for researchers, students, and professionals in today's information-rich era. Existing retrieval systems, which rely…

Information Retrieval · Computer Science 2025-02-06 Mohammed-Khalil Ghali , Abdelrahman Farrag , Daehan Won , Yu Jin

Recent advances in large language models (LLMs) have led to new summarization strategies, offering an extensive toolkit for extracting important information. However, these approaches are frequently limited by their reliance on isolated…

Artificial Intelligence · Computer Science 2024-06-21 Pranav Janjani , Mayank Palan , Sarvesh Shirude , Ninad Shegokar , Sunny Kumar , Faruk Kazi

Taxonomy inference for tabular data is a critical task of schema inference, aiming at discovering entity types (i.e., concepts) of the tables and building their hierarchy. It can play an important role in data management, data exploration,…

Databases · Computer Science 2025-03-31 Zhenyu Wu , Jiaoyan Chen , Norman W. Paton

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

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

Table Structure Recognition (TSR) requires the logical reasoning ability of large language models (LLMs) to handle complex table layouts, but current datasets are limited in scale and quality, hindering effective use of this reasoning…

Databases · Computer Science 2026-04-16 Ruilin Zhang , Kai Yang

We describe a method for proactive information retrieval targeted at retrieving relevant information during a writing task. In our method, the current task and the needs of the user are estimated, and the potential next steps are…

Information Retrieval · Computer Science 2016-06-21 Petri Luukkonen , Markus Koskela , Patrik Floréen

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

Ontologies are essential for structuring domain knowledge, improving accessibility, sharing, and reuse. However, traditional ontology construction relies on manual annotation and conventional natural language processing (NLP) techniques,…

Artificial Intelligence · Computer Science 2026-02-03 Xuan Liu , Ziyu Li , Mu He , Ziyang Ma , Xiaoxu Wu , Gizem Yilmaz , Yiyuan Xia , Bingbing Li , He Tan , Jerry Ying Hsi Fuh , Wen Feng Lu , Anders E. W. Jarfors , Per Jansson

Tabular data is frequently captured in image form across a wide range of real-world scenarios such as financial reports, handwritten records, and document scans. These visual representations pose unique challenges for machine understanding,…

Artificial Intelligence · Computer Science 2026-02-10 Zhuoyan Xu , Haoyang Fang , Boran Han , Bonan Min , Bernie Wang , Cuixiong Hu , Shuai Zhang

Manual chart review remains an extremely time-consuming and resource-intensive component of clinical research, requiring experts to extract often complex information from unstructured electronic health record (EHR) narratives. We present a…

This paper introduces a new information extraction model for business documents. Different from prior studies which only base on span extraction or sequence labeling, the model takes into account advantage of both span extraction and…

Computation and Language · Computer Science 2022-05-27 Nguyen Hong Son , Hieu M. Vu , Tuan-Anh D. Nguyen , Minh-Tien Nguyen

Table structure recognition aims to parse tables in unstructured data into machine-understandable formats. Recent methods address this problem through a two-stage process or optimized one-stage approaches. However, these methods either…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Anyi Xiao , Cihui Yang

Automatic table detection in PDF documents has achieved a great success but tabular data extraction are still challenging due to the integrity and noise issues in detected table areas. The accurate data extraction is extremely crucial in…

Computation and Language · Computer Science 2022-05-24 Siwen Luo , Mengting Wu , Yiwen Gong , Wanying Zhou , Josiah Poon

Hierarchical text classification (HTC) is a natural language processing task which has the objective of categorising text documents into a set of classes from a predefined structured class hierarchy. Recent HTC approaches use various…

Computation and Language · Computer Science 2025-07-23 Jaco du Toit , Marcel Dunaiski

In the age of information overload, content management for online news articles relies on efficient summarization to enhance accessibility and user engagement. This article addresses the challenge of extractive text summarization by…

Machine Learning · Computer Science 2025-09-22 Sajib Biswas , Milon Biswas , Arunima Mandal , Fatema Tabassum Liza , Joy Sarker

The use of knowledge graphs in recommender systems has become one of the common approaches to addressing data sparsity and cold start problems. Recent advances in large language models (LLMs) offer new possibilities for processing side and…

Information Retrieval · Computer Science 2025-02-13 Minhye Jeon , Seokho Ahn , Young-Duk Seo

We introduce a general method to extract knowledge from a recurrent neural network (Long Short Term Memory) that has learnt to detect if a given input sequence is valid or not, according to an unknown generative automaton. Based on the…

Machine Learning · Computer Science 2019-12-09 Ikram Chraibi Kaadoud , Nicolas P. Rougier , Frédéric Alexandre