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Geo-textual objects, i.e., objects with both spatial and textual attributes, such as points-of-interest or web documents with location tags, are prevalent and fuel a range of location-based services. Existing spatial keyword querying…

Databases · Computer Science 2025-03-07 Zesong Zhang , Jianzhong Qi , Xin Cao , Christian S. Jensen

Named entities have been considered and combined with keywords to enhance information retrieval performance. However, there is not yet a formal and complete model that takes into account entity names, classes, and identifiers together. Our…

Information Retrieval · Computer Science 2018-07-24 Tru H. Cao , Khanh C. Le , Vuong M. Ngo

The size of 3D models used on the web or stored in databases is becoming increasingly high. Then, an efficient method that allows users to find similar 3D objects for a given 3D model query has become necessary. Keywords and the geometry of…

Information Retrieval · Computer Science 2011-11-29 My Abdellah Kassimi , Omar El beqqali

The modern geographic information retrieval technology is based on quantitative models and methods. The semantic information in web documents and queries cannot be effectively represented, leading to information lost or misunderstanding so…

Information Retrieval · Computer Science 2013-11-20 Yong Gao , Lei Liu , Xing Lin , Yu Liu

A common approach for knowledge-base entity search is to consider an entity as a document with multiple fields. Models that focus on matching query terms in different fields are popular choices for searching such entity representations. An…

Information Retrieval · Computer Science 2019-07-03 Shahrzad Naseri , Sheikh Muhammad Sarwar , James Allan

The semantic e-government is a new application field accompanying the development of semantic web where the ontologies have become a fertile field of investigation. This is due firstly to both the complexity and the size of e-government…

Computers and Society · Computer Science 2012-05-29 Hassania Ouchetto , Ouail Ouchetto , Ounsa Roudies

In enterprise settings, efficiently retrieving relevant information from large and complex knowledge bases is essential for operational productivity and informed decision-making. This research presents a systematic empirical framework for…

Current paper discusses the methodologies involved in integrating Resource Description Framework into a HyperGraph Graph HG 2 data structure in order to preserve the semantics of the information contained in RDF document for dealing future…

Data Structures and Algorithms · Computer Science 2013-12-02 Shiladitya Munshi , Ayan Chakraborty , Debajyoti Mukhopadhyay

Search engine has become a fundamental component in various web and mobile applications. Retrieving relevant documents from the massive datasets is challenging for a search engine system, especially when faced with verbose or tail queries.…

Information Retrieval · Computer Science 2020-08-11 Kuan Fang , Long Zhao , Zhan Shen , RuiXing Wang , RiKang Zhour , LiWen Fan

Purely keyword-based text search is not satisfactory because named entities and WordNet words are also important elements to define the content of a document or a query in which they occur. Named entities have ontological features, namely,…

Information Retrieval · Computer Science 2018-07-24 Vuong M. Ngo , Tru H. Cao , Tuan M. V. Le

Geographic data plays an essential role in various Web, Semantic Web and machine learning applications. OpenStreetMap and knowledge graphs are critical complementary sources of geographic data on the Web. However, data veracity, the lack of…

Artificial Intelligence · Computer Science 2023-02-20 Elena Demidova , Alishiba Dsouza , Simon Gottschalk , Nicolas Tempelmeier , Ran Yu

Language models exhibit fundamental limitations -- hallucination, brittleness, and lack of formal grounding -- that are particularly problematic in high-stakes specialist fields requiring verifiable reasoning. I investigate whether formal…

Artificial Intelligence · Computer Science 2026-02-23 Marcelo Labre

Online social networks convey rich information about geospatial facets of reality. However in most cases, geographic information is not explicit and structured, thus preventing its exploitation in real-time applications. We address this…

Computation and Language · Computer Science 2025-03-04 Leonardo Nizzoli , Marco Avvenuti , Maurizio Tesconi , Stefano Cresci

With the development of the Semantic Web technology, the use of ontologies to store and retrieve information covering several domains has increased. However, very few ontologies are able to cope with the ever-growing need of frequently…

Computation and Language · Computer Science 2020-04-24 Mohammed Maree , Mohammed Belkhatir

The motivation, concept, design and implementation of latent semantic search for search engines have limited semantic search, entity extraction and property attribution features, have insufficient accuracy and response time of latent…

Information Retrieval · Computer Science 2019-12-03 Anton Kolonin

Retrieve information resources made by the machine processing may refer to multiple sources. A personal web as part of information resources in the Internet requires a feature that can be understood by computer machines. Therefore, in this…

Digital Libraries · Computer Science 2013-12-23 Istiadi , Azhari

Because of the increasing number of electronic data, designing efficient tools to retrieve and exploit documents is a major challenge. Current search engines suffer from two main drawbacks: there is limited interaction with the list of…

Information Retrieval · Computer Science 2010-12-09 Sylvie Ranwez , Vincent Ranwez , Mohameth-François Sy , Jacky Montmain , Michel Crampes

Relational data sources are still one of the most popular ways to store enterprise or Web data, however, the issue with relational schema is the lack of a well-defined semantic description. A common ontology provides a way to represent the…

Machine Learning · Computer Science 2018-01-31 Natalia Ruemmele , Yuriy Tyshetskiy , Alex Collins

Since its emergence in the 1990s the World Wide Web (WWW) has rapidly evolved into a huge mine of global information and it is growing in size everyday. The presence of huge amount of resources on the Web thus poses a serious problem of…

Information Retrieval · Computer Science 2011-02-04 Debajyoti Mukhopadhyay , Aritra Banik , Sreemoyee Mukherjee , Jhilik Bhattacharya , Young-Chon Kim

This paper is about a better understanding on the structure and dynamics of science and the usage of these insights for compensating the typical problems that arises in metadata-driven Digital Libraries. Three science model driven retrieval…

Information Retrieval · Computer Science 2011-01-11 Philipp Mayr , Philipp Schaer , Peter Mutschke