NDLI: Semantic search of learning services in a grid-based collaborative system

Content Provider	IEEE Xplore Digital Library
Author	Vega-Gorgojo, G. Bote-Lorenzo, M.L. Gomez-Sanchez, E. Dimitriadis, Y.A. Asensio-Perez, J.I.
Copyright Year	2005
Description	Author affiliation: Sch. of Telecommun. Eng., Valladolid Univ., Spain (Vega-Gorgojo, G.; Bote-Lorenzo, M.L.; Gomez-Sanchez, E.; Dimitriadis, Y.A.; Asensio-Perez, J.I.)
Abstract	CSCL systems can benefit from using a grid, since it offers a common infrastructure allowing an extended pool of resources that can provide supercomputing capabilities as well as specific hardware resources. Adopting a service oriented architecture such as OGSA can further benefit CSCL systems, enabling increased flexibility to adapt and reuse learning software. However, proliferation of services enormously challenges the search of appropriate ones. Common service discovery mechanisms, such as the Index Service or UDDI, perform poor searches since they rely on keyword matching and do not properly describe service functionality. To address these difficulties, ontologies can be used to formally describe services allowing for semantic searches. This paper proposes an ontology that describes learning services using educators abstractions in order to support the search. This way, service providers can describe their services in terms of the ontology, while educators can search for them using domain concepts. The integration of this enhanced service search mechanism in Gridcole, a real grid-based CSCL system, is described to illustrate its performance.
Starting Page	19
Ending Page	26
File Size	2294775
Page Count	8
File Format	PDF
ISBN	0780390741
DOI	10.1109/CCGRID.2005.1558529
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-09
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Collaboration Ontologies Electronic learning Computer architecture Application software Service oriented architecture Educational institutions Collaborative work Grid computing Hardware
Content Type	Text
Resource Type	Article

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