E-Learning on Social Semantic Information Sources

Copyright 2006 Digital Enterprise Research Institute. All rights reserved.

www.deri.ie

E-Learning on the Social Semantic Information Sources

Sebastian Ryszard Kruk, Adam Gzella, Jarosław Dobrzański, Bill McDaniel and Tomasz Woroniecki

adam.gzella@deri.org

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Outline

• Problems and possible solutions• Introduction to SIOC, SSCF and JeromeDL• Our solution• Conclusions

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„John’s problems” – motivation scenario

• John - teacher in a distant course• Each lecture assisted with reading material

– Should be distributed week before lecture

• John wants to check if students read and understand• Gathered knowledge passed to the next year’s course.• He wants to utilise the power of Web/Web2.0 - most

materials from:– University library– Wikipedia– Online sources (like blogs)

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John’s solution

• Decide to use: – Web/Web2.0 potential– Bookmarks sharing tool– Blog platform

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Is there a better way?

• Solution needs to be interoperable and universal

Social Semantic Information SourcesSocial Semantic Information Sources

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SIOC – connecting online communities

• Simple but powerful• SIOC ontology – describes

community metadata• Can be used for blogs, wikis and

foras• Allows to:

– Cross-site queries– Topic related searches– Importing data from other sites– ... and many other

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Sharing knowledge in community with SSCF

• SSCF – Social Semantic Collaborative Filtering• Gathering knowledge as a bookmarks• Bookmarks can be easily shared with friends• Users use friends bookmarks (possible domain expert)• Directories are well (semanticaly) described with

wordNet and taxonomies• Fine grained access rights.

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Sharing knowledge in community with SSCF

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SSCF and SIOC

• SSCF supports SIOC data• User can bookmarks blogs

post or even whole blogs• SIOC bookmarks are treated

as standard SSCF resource.

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JeromeDL – Semantic Digital Library

• SemanticSemantic Digital Library– Digital Library with reach semantic annotations.– Advanced semantic search features.

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JeromeDL – Social Semantic Digital Library

• SocialSocial Semantic Digital Library• community oriented:

– Enriched with SSCF.• Each user maintains private bookshelf

with bookmarks to bibliographic resources

– Allows to the community to create knowledge (SIOC integration)• Each book becomes a blog entry which can be commented

• Data is exposed in SIOC format.

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Our solution

• One tool that solves all the John’s problems

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How it works for John

• Bookmarking interesting content and sharing it with students in right order.

• Students sharing with each other• Students build new knowledge in JeromeDL• All the experience is available for next year students

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What is happening

JeromeDLcreating knowledge

JeromeDLcreating knowledge

SSCFsharing knowledge

SSCFsharing knowledge

SIOCSIOC

Exposing book commentsIn SIOC

Support for SIOC enabledinformation

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Ontology mapping

• SIOC with JeromeDL and SSCF:– Support for SIOC

ontology – RDF level.– Ontology alignment

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Time evaluation

• JeromeDL is much more efficient than 3 separate applications (digital library, blog engine, bookmarks sharing engine)

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notitio.us

• SSCF is now part of notitio.us – semantic discovery, browsing and sharing– Universal bookmarking system

• Notitio.us is equipped with Informal Knowledge Harvester– Transforms informal knowledge into LOM and other formats.

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Conclusions

• Social Semantic Information Sources – JeromeDL and SSCF:– Utilise Web 2.0 and Semantic Web potential– Can be very helpful in modern, web oriented e-Learning.

adam.gzella@deri.org