1. ece 627 intelligent web: ontology and beyond
lecture 19: semantic web – social web

2. Semantic Web
“The Semantic Web is not a separate Web but an extension of the current one, in which information is given well-defined meaning, better enabling computers and people to work in cooperation.”
Tim Berners-Lee, 2001
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3. Web 2.0
"The central principle behind the success of the giants born in the Web 1.0 era who have survived to lead the Web 2.0 era appears to be this, that they have embraced the power of the web to harness collective intelligence"
Tim O’Reilly, 2006
“Web 2.0 Is Much More About A Change In People and Society Than Technology”
Dion Hinchcliffe
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4. Web 2.0
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5. Tim Berners-Lee, 2006
“The Web isn’t about what you can do with computers. It’s people and, yes, they are connected by computers. But computer science, as the study of what happens in a computer, doesn’t tell you about what happens on the Web.”
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6. “collective intelligence”
collaborative bookmarking, searching
clicking, rating, tagging, buying
blogs, wikis, discussion lists
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7. “collective knowledge”
information delivered by people: via participation and contributions
improves with … people participation
structured, un-structured data, any data …
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8. semantic net information creation (user-driven by providing …)
information aggregation
(user-driven by demanding, searching …)
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9. ontology information creation
centralized, hierarchical categorization …
… but it enables cross-application aggregation and value-added services
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10. ontology for tag data information creation
enables utilization of tag data across multiple systems for:
tag search
collaborative filtering
query with tags
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11. information aggregation issues
how to integrate users’ contributions of unstructured content with structured data?
how to create value form the web content?
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12. information aggregation solutions?
combining hierarchical information (ontology) with spontaneous contributions (tags)
site independent activities (spanning across multiple sites)
integration-based search
semantic web + social web
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