1 / 13

Multimedia on the Semantic Web

Multimedia on the Semantic Web. Jacco van Ossenbruggen Multimedia and Human-Computer Interaction (INS2) CWI Amsterdam. Talk overview. Three generations Web content Requirements: second & third generation multimedia Demo CWI’s Cuypers engine realising second generation multimedia

talon-spencer
Download Presentation

Multimedia on the Semantic Web

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Multimedia on the Semantic Web Jacco van Ossenbruggen Multimedia and Human-Computer Interaction (INS2) CWI Amsterdam

  2. Talk overview • Three generations Web content • Requirements: • second & third generation multimedia • Demo CWI’s Cuypers engine • realising second generation multimedia • Future directions • towards third generation multimedia:a media-friendly Semantic Web

  3. The Web in three generations 1. Hand-coded (HTML) Web content • easy access through uniform interface • huge authoring and maintenance effort • hard to deal with dynamically changing content 2. Automated on-the fly content generation • based on templates filled with database content • later extended with XML document transformations 3. Automated processing of content • The Semantic Web

  4. Who’s afraid of the Semantic Web? • It is not about “blue sky” researchers trying to model the entire world… • Instead, the Semantic Web: • proposes explicit meta-data instead of “screen scraping” • by using agreed upon semantics (ontologies) • building on proven Web technology (XML, RDF, OIL) • Lot of current activity: • W3C Semantic Web Activity (RDF, WebONT) • OntoWeb (EU funded, > 80 partners, including CWI) • DAML (huge DARPA funded project)

  5. …back to multimedia • Real multimedia Web content is still rare • Mostly bells & whistles to enhance HTML text … • … or mono-media AV-streams • Virtually all presentations are hand-authored • proprietary formats that are hard to generate • limited support for dynamic content and multichanneling • most Web technology is text/page-oriented … • … with SMIL as one of the few exceptions • Conclusion: • Multimedia has hardly caught • up with the 1stgeneration Web

  6. Example scenario User is interested in Rembrandt and wants to know about the “chiaroscuro” technique System responds with textual explanation of the technique and a number of example images of its application in Rembrandt’s paintings

  7. Adapt to end-user’s platform capabilities multichanneling: PC, PDA, mobile, voice-only, ... Adapt to the network resources available bandwidth and other quality of service parameters Personalization language, abilities, level of expertise, .. Problem: current 2nd generation Web toolsdo not work for multimedia Need for 2ndgeneration multimedia

  8. Cuypers multimedia generation engine

  9. Cuypers multimedia generation engine • Demo time • Acknowledgements: • Demonstrator developed in the context of the ToKeN2000 project • Media database used with permission, courtesy Rijksmuseum Amsterdam.

  10. Cuypers multimedia generation engine • Demo time The bad news: currently all our design knowledge is: • implicit and hidden in the generation rules • lost in the generated Web presentation • not reusable for other Web applications/sites

  11. Semantic Web Potential Knowledge Sources

  12. Multimedia is still mostly first generation hand-authored presentations common Web-tools are too text-centric CWI’s Cuypers system realises second generation on-the-fly multimedia generation media-centric transformations Third generation is topic of our current research generating annotated multimedia reusing knowledge available on the Semantic Web Conclusions

  13. Take home message Multimedia on the Semantic Web: Semantic Web: next generation of the Web Multimedia aspects still needs lot of work Thanks for your attention

More Related