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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

When people search for information about a new topic within large document collections, they implicitly construct a mental model of the unfamiliar information space to represent what they currently know and guide their exploration into the…

Information Retrieval · Computer Science 2023-02-21 Mengtian Guo , Zhilan Zhou , David Gotz , Yue Wang

With the increased interest in computational sciences, machine learning (ML), pattern recognition (PR) and big data, governmental agencies, academia and manufacturers are overwhelmed by the constant influx of new algorithms and techniques…

Software Engineering · Computer Science 2017-07-28 André Anjos , Laurent El-Shafey , Sébastien Marcel

A data lake is a repository of data with potential for future analysis. However, both discovering what data is in a data lake and exploring related data sets can take significant effort, as a data lake can contain an intimidating amount of…

Databases · Computer Science 2022-06-09 Nour Alhammad , Alex Bogatu , Norman W Paton

Querying and exploring massive collections of data sources, such as data lakes, has been an essential research topic in the database community. Although many efforts have been paid in the field of data discovery and data integration in data…

Databases · Computer Science 2025-04-04 Jin Wang , Yanlin Feng , Chen Shen , Sajjadur Rahman , Eser Kandogan

Large amount of public data produced by enterprises are in semi-structured PDF form. Tabular data extraction from reports and other published data in PDF format is of interest for various data consolidation purposes such as analysing and…

Information Retrieval · Computer Science 2019-01-16 Rahul Anand , Hye-Young Paik , Cheng Wang

Large language models (LLMs) are becoming attractive as few-shot reasoners to solve Natural Language (NL)-related tasks. However, the understanding of their capability to process structured data like tables remains an under-explored area.…

Computation and Language · Computer Science 2024-07-18 Yuan Sui , Mengyu Zhou , Mingjie Zhou , Shi Han , Dongmei Zhang

Traditional search methods primarily depend on string matches, while semantic search targets concept-based matches by recognizing underlying intents and contextual meanings of search terms. Semantic search is particularly beneficial for…

Computation and Language · Computer Science 2024-10-02 Phillip Schneider , Florian Matthes

Developing a universal model that can efficiently and effectively respond to a wide range of information access requests -- from retrieval to recommendation to question answering -- has been a long-lasting goal in the information retrieval…

Information Retrieval · Computer Science 2023-04-27 Hansi Zeng , Surya Kallumadi , Zaid Alibadi , Rodrigo Nogueira , Hamed Zamani

Avoiding redundancy in query results has been extensively studied in relational databases and information retrieval, yet its implications for data lakes remain largely unexplored. We bridge this gap by investigating how to discover…

Databases · Computer Science 2026-03-10 Besat Kassaie , Renée J. Miller

Over the past decade, the Table Union Search (TUS) task has aimed to identify unionable tables within data lakes to improve data integration and discovery. While numerous solutions and approaches have been introduced, they primarily rely on…

Databases · Computer Science 2025-03-03 Margherita Martorana , Tobias Kuhn , Jacco van Ossenbruggen

Searching for mathematical results remains difficult: most existing tools retrieve entire papers, while mathematicians and theorem-proving agents often seek a specific theorem, lemma, or proposition that answers a query. While semantic…

Information Retrieval · Computer Science 2026-03-10 Luke Alexander , Eric Leonen , Sophie Szeto , Artemii Remizov , Ignacio Tejeda , Jarod Alper , Giovanni Inchiostro , Vasily Ilin

Information retrieval models that aim to search for documents relevant to a query have shown multiple successes, which have been applied to diverse tasks. Yet, the query from the user is oftentimes short, which challenges the retrievers to…

Computation and Language · Computer Science 2025-09-22 Soyeong Jeong , Jinheon Baek , Sukmin Cho , Sung Ju Hwang , Jong C. Park

Publication databases rely on accurate metadata extraction from diverse web sources, yet variations in web layouts and data formats present challenges for metadata providers. This paper introduces CRAWLDoc, a new method for contextual…

Computation and Language · Computer Science 2025-06-05 Fabian Karl , Ansgar Scherp

We introduce a structured quantum search algorithm that leverages entanglement maps and a fixed-point method to minimize oracle query complexity in unsorted datasets. By partitioning qubits into rows based on their entanglement order, the…

Quantum Physics · Physics 2025-07-22 Yash Prabhat , Snigdha Thakur , Ankur Raina

The abundant semi-structured data on the Web, such as HTML-based tables and lists, provide commercial search engines a rich information source for question answering (QA). Different from plain text passages in Web documents, Web tables and…

Computation and Language · Computer Science 2020-10-15 Xingyao Zhang , Linjun Shou , Jian Pei , Ming Gong , Lijie Wen , Daxin Jiang

In this paper, we observe that semi-structured tabulated text is ubiquitous; understanding them requires not only comprehending the meaning of text fragments, but also implicit relationships between them. We argue that such data can prove…

Computation and Language · Computer Science 2020-05-14 Vivek Gupta , Maitrey Mehta , Pegah Nokhiz , Vivek Srikumar

Social bookmarking systems allow users to organise collections of resources on the Web in a collaborative fashion. The increasing popularity of these systems as well as first insights into their emergent semantics have made them relevant to…

Digital Libraries · Computer Science 2008-05-15 Ciro Cattuto , Dominik Benz , Andreas Hotho , Gerd Stumme

Keyword search is the most popular querying technique on semistructured data. Keyword queries are simple and con- venient. However, as a consequence of their imprecision, the quality of their answers is poor and the existing algorithms do…

Databases · Computer Science 2015-08-21 Aggeliki Dimitriou , Ananya Dass , Dimitri Theodoratos

Databases are widespread, yet extracting relevant data can be difficult. Without substantial domain knowledge, multivariate search queries often return sparse or uninformative results. This paper introduces an approach for searching…

Artificial Intelligence · Computer Science 2017-04-05 Feras Saad , Leonardo Casarsa , Vikash Mansinghka