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Recent advances in large language models enable documents to be represented as dense semantic embeddings, supporting similarity-based operations over large text collections. However, many web-scale systems still rely on flat clustering or…

Computation and Language · Computer Science 2026-01-30 Thomas Haschka , Joseph Bakarji

Document indexation is an essential task achieved by archivists or automatic indexing tools. To retrieve relevant documents to a query, keywords describing this document have to be carefully chosen. Archivists have to find out the right…

Information Retrieval · Computer Science 2009-12-09 Carlo Abi Chahine , Nathalie Chaignaud , Jean-Philippe Kotowicz , Jean-Pierre Pécuchet

In this note we suggest that difficulties encountered in natural language semantics are, for the most part, due to the use of mere symbol manipulation systems that are devoid of any content. In such systems, where there is hardly any link…

Artificial Intelligence · Computer Science 2007-12-13 Walid S. Saba

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

In this paper we present a generic framework for ontology-based information retrieval. We focus on the recognition of semantic information extracted from data sources and the mapping of this knowledge into ontology. In order to achieve more…

Information Retrieval · Computer Science 2014-09-04 Amir Zidi , Mourad Abed

Forms are our gates to the web. They enable us to access the deep content of web sites. Automatic form understanding provides applications, ranging from crawlers over meta-search engines to service integrators, with a key to this content.…

Databases · Computer Science 2012-10-23 Tim Furche , Georg Gottlob , Giovanni Grasso , Xiaonan Guo , Giorgio Orsi , Christian Schallhart

Over the past few decades, the amount of scientific articles and technical literature has increased exponentially in size. Consequently, there is a great need for systems that can ingest these documents at scale and make their content…

Digital Libraries · Computer Science 2018-05-25 Peter W J Staar , Michele Dolfi , Christoph Auer , Costas Bekas

Due to the large volume of data and information generated by a multitude of social data sources, it is a huge challenge to manage and extract useful knowledge, especially given the different forms of data, streaming data and uncertainty and…

Databases · Computer Science 2021-05-10 Bilal Abu-Salih , Pornpit Wongthongtham , Dengya Zhu , Kit Yan Chan , Amit Rudra

A typical IR system that delivers and stores information is affected by problem of matching between user query and available content on web. Use of Ontology represents the extracted terms in form of network graph consisting of nodes, edges,…

Information Retrieval · Computer Science 2017-03-23 Gagandeep Singh Narula , Vishal Jain

Today's conventional search engines hardly do provide the essential content relevant to the user's search query. This is because the context and semantics of the request made by the user is not analyzed to the full extent. So here the need…

Information Retrieval · Computer Science 2012-07-25 Swathi Rajasurya , Tamizhamudhu Muralidharan , Sandhiya Devi , S. Swamynathan

Concept maps can be used to concisely represent important information and bring structure into large document collections. Therefore, we study a variant of multi-document summarization that produces summaries in the form of concept maps.…

Computation and Language · Computer Science 2017-07-24 Tobias Falke , Iryna Gurevych

Reproducibility of computational results remains a challenge in materials science, as simulation workflows and parameters are often reported only in unstructured text and tables. While literature data are valuable for validation and reuse,…

Starting from an unsolved problem of information retrieval this paper presents an ontology-based model for indexing and retrieval. The model combines the methods and experiences of cognitive-to-interpret indexing languages with the…

Information Retrieval · Computer Science 2013-12-17 Winfried Gödert

We present an end-to-end, multimodal, fully convolutional network for extracting semantic structures from document images. We consider document semantic structure extraction as a pixel-wise segmentation task, and propose a unified model…

Computer Vision and Pattern Recognition · Computer Science 2017-06-09 Xiao Yang , Ersin Yumer , Paul Asente , Mike Kraley , Daniel Kifer , C. Lee Giles

Query Understanding is a semantic search method that can classify tokens in a customer's search query to entities such as Product, Brand, etc. This method can overcome the limitations of bag-of-words methods but requires an ontology. We…

Information Retrieval · Computer Science 2018-07-06 Aliasgar Kutiyanawala , Prateek Verma , Zheng , Yan

The process-based semantic composition of Web Services is gaining a considerable momentum as an approach for the effective integration of distributed, heterogeneous, and autonomous applications. To compose Web Services semantically, we need…

Artificial Intelligence · Computer Science 2015-06-01 Hioual Ouassila , Boufaida Zizette

Knowledge graphs capture entities and relations from long documents and can facilitate reasoning in many downstream applications. Extracting compact knowledge graphs containing only salient entities and relations is important but…

Computation and Language · Computer Science 2021-06-15 Zeqiu Wu , Rik Koncel-Kedziorski , Mari Ostendorf , Hannaneh Hajishirzi

This paper presents a methodology for summarization from multiple documents which are about a specific topic. It is based on the specification and identification of the cross-document relations that occur among textual elements within those…

Computation and Language · Computer Science 2016-08-31 Stergos D. Afantenos , Irene Doura , Eleni Kapellou , Vangelis Karkaletsis

Text summarization is the research area aiming at creating a short and condensed version of the original document, which conveys the main idea of the document in a few words. This research topic has started to attract the attention of a…

Computation and Language · Computer Science 2020-05-12 Shen Gao , Xiuying Chen , Zhaochun Ren , Dongyan Zhao , Rui Yan

Enormous explosion in the number of the World Wide Web pages occur every day and since the efficiency of most of the information processing systems is found to be less, the potential of the Internet applications is often underutilized.…

Information Retrieval · Computer Science 2011-09-13 L. Jegatha Deborah , R. Baskaran , A. Kannan