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Improving the Performance of the DL-Learner SPARQL Component for Semantic Web Applications [chapter]

Didier Cherix, Sebastian Hellmann, Jens Lehmann
2013 Lecture Notes in Computer Science  
The algorithms are made available in the open source DL-Learner project and we present several real-life scenarios in which they can be used by Semantic Web applications.  ...  The vision of the Semantic Web is to make use of semantic representations on the largest possible scale -the Web.  ...  Introduction The vision of the Semantic Web aims to make use of semantic representations on the largest possible scale -the Web.  ... 
doi:10.1007/978-3-642-37996-3_25 fatcat:yefx5upgljdx5m7ixwikilhoji

ROLES AND USAGES OF RDF, SPARQL, ONTOLOGY TOOLS IN SEMANTIC WEB

Rupal Gupta .
2014 International Journal of Research in Engineering and Technology  
Semantic web has become as a new version of machine-understandable web including with intelligent search results in order to improve search along with data usage on the global scale.  ...  In this paper, the usages and roles of RDF, SPARQL and Web ontology is shown with illustrations of SPARQL queries along with some optimization heuristics.  ...  components called cubes Jena Apache Jena 2.12.0 Semantic Web developmen t, RDF store Framework for building Semantic Web applications DL-Learner Build 2009- 05-06 Semantic Web tool  ... 
doi:10.15623/ijret.2014.0326019 fatcat:7mxtxw6g5vdsjl5ss2e64entl4

Managing the Life-Cycle of Linked Data with the LOD2 Stack [chapter]

Sören Auer, Lorenz Bühmann, Christian Dirschl, Orri Erling, Michael Hausenblas, Robert Isele, Jens Lehmann, Michael Martin, Pablo N. Mendes, Bert van Nuffelen, Claus Stadler, Sebastian Tramp (+1 others)
2012 Lecture Notes in Computer Science  
for knowledge base access and integration between the different tools of the LOD2 Stack. (3) Integration of the LOD2 Stack user interfaces based on REST enabled Web Applications.  ...  These three pillars comprise the methodological and technological framework for integrating the very heterogeneous LOD2 Stack components into a consistent framework.  ...  The research leading to these results has received funding under the European Commission's Seventh Framework Programme from ICT grant agreement LOD2, no. 257943.  ... 
doi:10.1007/978-3-642-35173-0_1 fatcat:5bn4o4ug5zgx5o3ybn65ptyvz4

Supporting the Linked Data Life Cycle Using an Integrated Tool Stack [chapter]

Bert Van Nuffelen, Valentina Janev, Michael Martin, Vuk Mijovic, Sebastian Tramp
2014 Lecture Notes in Computer Science  
The core of a Linked Data application is the processing of the knowledge expressed as Linked Data.  ...  Therefore the creation, management, curation and publication of Linked Data are critical aspects for an application's success. For all of these aspects the LOD2 project provides components.  ...  There is an online instance that can be used for experimenting. https://github.com/dbpedia-spotlight/dbpedia-spotlight/ Components dl-learner-core, dl-learner-interfaces (ULEI).  ... 
doi:10.1007/978-3-319-09846-3_6 fatcat:dnn5ivd4czardemfkjhul32hc4

Technology Enhanced Learning for Humanities by Active Learning − the Sinus Project Approach

Gennady Agre, Danail Dochev, Liliana Slavkova
2012 Cybernetics and Information Technologies  
The paper presents an approach to active learning facilitated by the use of semantic technologies. Some features of active learning and understanding of learning in humanities are discussed.  ...  The specifics of a well defined learning task - learner's authoring of analytical materials, grounded by materials from a digital library - are analyzed to shape the functionality of experimental Technology  ...  Acknowledgements: The work on this article was partially funded by the Bulgarian National Science Fund project No D-002-189 SINUS, "Semantic Technologies for Web Services and Technology Enhanced Learning  ... 
doi:10.2478/cait-2012-0028 fatcat:utwmxi3xfza6np4tdimwp26qpe

Web-Based Learning Under Tacit Mining of Various Data Sources

Abdelouahab Belazoui, Abdelmoutia Telli, Chafik Arar
2021 International Journal of Emerging Technologies in Learning (iJET)  
Finally, this article concludes that the combination of machine learning with the semantic web has provided a supportive study environment and enhanced the schooling conditions within open and distance  ...  To facilitate the selecting task of these resources, the present paper proposes an intelligent tutoring system that can access teaching contents available on the web automatically and offers them to learners  ...  In recent years, DL-Lite (family of lightweight description logic), has been specially designed for applications using huge volumes of data such as web applications (Semantic Web) where responding to requests  ... 
doi:10.3991/ijet.v16i16.23405 fatcat:jbyfo3tc3nfbnf7raehsuclzwm

Interoperability of Learning Objects Copyright in the LUISA Semantic Learning Management System

Roberto García, Tomas Pariente
2009 Information systems management  
Moreover, Semantic Web tools like reasoners, rule engines and semantic queries facilitate the implementation of an interoperable copyright management component in the LUISA architecture.  ...  The EU research project LUISA (Learning Content Management System Using Innovative Semantic Web Services Architecture) addresses the development of a reference semantic architecture for the major challenges  ...  The combination of the DL reasoner and SPARQL queries makes it possible to implement license checking based on the copyright ontology by reusing existing Semantic Web tools.  ... 
doi:10.1080/10580530903018037 fatcat:gosbwuemdjexpmz3bnxx7gicz4

ORE - A Tool for Repairing and Enriching Knowledge Bases [chapter]

Jens Lehmann, Lorenz Bühmann
2010 Lecture Notes in Computer Science  
While the number and size of Semantic Web knowledge bases increases, their maintenance and quality assurance are still difficult.  ...  ORE supports the detection of a variety of ontology modelling problems and guides the user through the process of resolving them.  ...  This part of ORE aims at stronger support for the "web aspect" of the Semantic Web and the high popularity of Web of Data initiative.  ... 
doi:10.1007/978-3-642-17749-1_12 fatcat:u4ch5bi4efechd3htxugxggcim

Ontology-based context inference and query for mobile devices

Suparna De, Klaus Moessner
2008 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications  
Specifically, to ensure interoperability with existing application logic, the enabling components should support semantic queries.  ...  The VISIon of service personalization for mobile communication environments entails context sensitive service provisioning.  ...  ACKNOWLEDGMENT The work reported in this paper has formed part of the  ... 
doi:10.1109/pimrc.2008.4699602 dblp:conf/pimrc/DeM08 fatcat:s7o4ecor65gjpaanxyzi2a2zoi

Introduction to Linked Data and Its Lifecycle on the Web [chapter]

Axel-Cyrille Ngonga Ngomo, Sören Auer, Jens Lehmann, Amrapali Zaveri
2014 Lecture Notes in Computer Science  
While many standards, methods and technologies developed within by the Semantic Web community are applicable for Linked Data, there are also a number of specific characteristics of Linked Data, which have  ...  The term Linked Data refers to a set of best practices for publishing and interlinking structured data on the Web.  ...  In particular, we would like to thank Christian Bizer and Tom Heath, whose Chaper 2 of the book 'Linked Data -Evolving the Web into a Global Data Space' [53] served as a blueprint for Section 2; Sebastian  ... 
doi:10.1007/978-3-319-10587-1_1 fatcat:2vba6rydjvehro3cwcakafnn5e

DBpedia and the live extraction of structured data from Wikipedia

Mohamed Morsey, Jens Lehmann, Sören Auer, Claus Stadler, Sebastian Hellmann
2012 Program  
An overall finding is that there is a plenty of opportunities arising from the emerging Web of Data for librarians.  ...  Practical implications -DBpedia had and has a great effect on the Web of Data and became a crystallization point for it.  ...  Acknowledgments We thank the people at Openlink software for their valuable support during the development of DBpedia-Live.  ... 
doi:10.1108/00330331211221828 fatcat:o65dmg7jq5cmrp3dps3h2ghzsi

An approach for semantic-based searching in learning resources

Tran Thanh Dien, Le Van Trung, Nguyen Thai-Nghe
2020 2020 12th International Conference on Knowledge and Systems Engineering (KSE)  
Especially, when it is difficult for lecturers and learners to get close to each other in the context of Covid-19 epidemic period, online learning shows its availability and necessary.  ...  This paper proposes a solution for semantic-based searching in learning resources. Firstly, ontologies are built to represent information of lectures.  ...  Semantic weh and ontology are the two main platforms for doing this work. A. Semantic web Semantic web is built on the platform of the existing web system.  ... 
doi:10.1109/kse50997.2020.9287798 fatcat:dacqjuqxcrd7teebk6tbfjx6ae

Machine Translation using Semantic Web Technologies: A Survey

Diego Moussallem, Matthias Wauer, Axel-Cyrille Ngonga Ngomo
2018 Journal of Web Semantics  
This article presents the results of a systematic review of machine translation approaches that rely on Semantic Web technologies for translating texts.  ...  Overall, our survey suggests that while Semantic Web technologies can enhance the quality of machine translation outputs for various problems, the combination of both is still in its infancy.  ...  Acknowledgements This research has been partially supported by the Brazilian National Council for Scientific and Technological Development (CNPq) (no. 206971/2014-1) and the H2020 HOBBIT Project (GA No  ... 
doi:10.1016/j.websem.2018.07.001 fatcat:azjfl5e77fg5xkjiq7lzp44hnm

E-Learning and Semantic Web

Ahmed Rashad Khalifa
2015 International Journal of Intelligent Information Systems  
"Making content machine-understandable" is a popular paraphrase of the fundamental prerequisite for the Semantic Web.  ...  However, with the rapid increase of learning content on the Web, it is time-consuming for learners to find contents they really want to and need to study.  ...  The architecture of the Semantic Web is discussed, which introduces the essential components of the Semantic Web, such as eXtensible Mark-up language (XML), XML scheme, Resource Description Framework (  ... 
doi:10.11648/j.ijiis.20150405.11 fatcat:ipkzx52mmnbnlocfnf6a6zx3si

An Evolutionary Approach to Class Disjointness Axiom Discovery

Thu Huong Nguyen, Andrea G.B. Tettamanzi
2019 IEEE/WIC/ACM International Conference on Web Intelligence on - WI '19  
RDF data resource of the Semantic Web.  ...  Axiom learning is an essential task in enhancing the quality of an ontology, a task that sometimes goes under the name of ontology enrichment.  ...  FOUNDATIONS 3.1 The Semantic Web and Related Concepts The Semantic Web 2 (SW) which is an extension of the World Wide Web (WWW) can be considered as the movement from the Web of documents to the Web of  ... 
doi:10.1145/3350546.3352502 dblp:conf/webi/NguyenT19 fatcat:qmpdb76ga5bdln7miga3gka2ku
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