1. Social Semantic Web 林光德

2. Problems Why should I apply Semantic Web technologies on Social Web? What can I benefit?

3. Toward a Social Semantic Web Alexander Mikroyannidis ◦ University of Leeds

4. Toward a Social Semantic Web (cont.) Bottlenecks of Semantic Web ◦ Ontologies’s top-down modeling approach ◦ Need constant updates and maintenance The means provide for communication and collaboration in the Social Web don’t approach the level of sophistication that the Semantic Web proposes.

5. Toward a Social Semantic Web (cont.) Folksonomies ◦ Consensus regarding tags’ meaning is required. ◦ Folksonomies can’t produce a coherent categorization scheme. ◦ Folksonomies tend to reach a stable form under certain conditions.

6. Toward a Social Semantic Web (cont.) Building a social semantic web ◦ Use folksonomies’ scheme as an initial knowledge base for constructing ontologies.  The ontologies would represent online communities’ collective intelligence.  Evolve the ontologies over time.  The ontologies would provide a machine- processible from to the Social Web.

7. The Future of Social Networks on the Internet The Need for Semantics John Breslin and Stefan Decker Digital Enterprise Research Institute, Galway

8. The Future of Social Networks on the Internet (cont.) Current Social Networking sites are boring… ◦ The act of connecting sometimes becomes a site’s primary (only) activity. ◦ social doesn’t explain what connects those particular people and not others. ◦ Various SNSs don’t usually work together.

9. The Future of Social Networks on the Internet (cont.) Object-centered social network can fix one problem that of sites becoming boring.

10. The Future of Social Networks on the Internet (cont.) Interoperability among SNSs is required.

11. The Future of Social Networks on the Internet (cont.) Social Network Stack Personal authentication and authorization layer Social network access layer Content object access layer User