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For some decision processes a significant added value is achieved when enterprises' internal Data Warehouse (DW) can be integrated and combined with external data gained from web sites of competitors and other relevant Web sources. In this…

Multiagent Systems · Computer Science 2018-07-11 Dejan Lavbič , Olegas Vasilecas , Rok Rupnik

A significant barrier to the portability of queries across di- verse physical implementations of large data stores, espe- cially NoSQL data stores, is that the queries reference the physical storage attributes, such as the table and column…

Databases · Computer Science 2016-10-20 Suresh K. Damodaran , Pedro A. Colon-Hernandez

Ontology-based data access (OBDA) is a popular approach for integrating and querying multiple data sources by means of a shared ontology. The ontology is linked to the sources using mappings, which assign views over the data to ontology…

Artificial Intelligence · Computer Science 2017-05-22 Charalampos Nikolaou , Egor V. Kostylev , George Konstantinidis , Mark Kaminski , Bernardo Cuenca Grau , Ian Horrocks

Query optimization has been studied using machine learning, reinforcement learning, and, more recently, graph-based convolutional networks. Ontology, as a structured, information-rich knowledge representation, can provide context,…

Databases · Computer Science 2025-11-11 Songhui Yue , Yang Shao , Sean Hayes

Ontology-based data integration has been one of the practical methodologies for heterogeneous legacy database integrated service construction. However, it is neither efficient nor economical to build the cross-domain ontology on top of the…

Databases · Computer Science 2021-03-16 Yuanwei Zhao , Lan Huang , Bo Wang , Dongxu Zhang , Simone Bocca , Fausto Giunchiglia , Rui Zhang

Considering the evolution of the semantic wiki engine based platforms, two main approaches could be distinguished: Ontologies for Wikis (OfW) and Wikis for Ontologies (WfO). OfW vision requires existing ontologies to be imported. Most of…

Artificial Intelligence · Computer Science 2019-04-12 Guidedi Kaladzavi , Papa Fary Diallo , Cedric Béré , Olivier Corby , Isabelle Mirbel , Moussa Lo , Dina Taiwe Kolyang

As the use of technology increases and data analysis becomes integral in many businesses, the ability to quickly access and interpret data has become more important than ever. Information retrieval technologies are being utilized by…

Computation and Language · Computer Science 2018-07-03 Aliaksei Vertsel , Mikhail Rumiantsau

The SemanticWeb emerged as an extension to the traditional Web, towards adding meaning to a distributed Web of structured and linked data. At its core, the concept of ontology provides the means to semantically describe and structure…

Artificial Intelligence · Computer Science 2021-05-03 Konstantinos Sikelis , George E Tsekouras , Konstantinos I Kotis

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

The Web of Data is an open environment consisting of a great number of large inter-linked RDF datasets from various domains. In this environment, organizations and companies adopt the Linked Data practices utilizing Semantic Web (SW)…

End users of recent biomedical information systems are often unaware of the storage structure and access mechanisms of the underlying data sources and can require simplified mechanisms for writing domain specific complex queries. This…

Databases · Computer Science 2008-12-16 Kamran Munir , Mohammed Odeh , Richard McClatchey

Use case specifications have successfully been used for requirements description. They allow joining, in the same modeling space, the expectations of the stakeholders as well as the needs of the software engineer and analyst involved in the…

Software Engineering · Computer Science 2014-04-04 Rui Couto , António Nestor Ribeiro , José Creissac Campos

Recently ontologies have been exploited in a wide range of research areas for data modeling and data management. They greatly assists in defining the semantic model of the underlying data combined with domain knowledge. In this paper, we…

Databases · Computer Science 2021-06-08 Jiantao Wu , Fabrizio Orlandi , Declan O'Sullivan , Soumyabrata Dev

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

NoSQL databases have become increasingly popular due to their outstanding performance in handling large-scale, unstructured, and semi-structured data, highlighting the need for user-friendly interfaces to bridge the gap between…

Databases · Computer Science 2025-02-19 Jinwei Lu , Yuanfeng Song , Zhiqian Qin , Haodi Zhang , Chen Zhang , Raymond Chi-Wing Wong

The upcoming technology support for semantic web promises fresh directions for Software Engineering community. Also semantic web has its roots in knowledge engineering that provoke software engineers to look for application of ontology…

Software Engineering · Computer Science 2013-07-17 Farheen Siddiqui , M. Afshar Alam

Today's database systems have shown to be capable of supporting AI applications that demand a lot of data processing. To this end, these systems incorporate powerful querying languages that go far beyond the mere retrieval of data, and…

Databases · Computer Science 2021-10-05 Daniel Beßler , Sascha Jongebloed , Michael Beetz

Customer Service Management is one of major business activities to better serve company customers through the introduction of reliable processes and procedures. Today this kind of activities is implemented through e-services to directly…

Information Retrieval · Computer Science 2007-05-23 Alexander Smirnov , Mikhail Pashkin , Nikolai Chilov , Tatiana Levashova , Andrew Krizhanovsky , Alexey Kashevnik

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

NoSQL databases have become an important component of many big data and real-time web applications. Their distributed nature and scalability make them an ideal data storage repository for a variety of use cases. While NoSQL databases are…

Databases · Computer Science 2022-12-26 Florian Eppinger , Uta Störl