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Integrating Social Web & TV with help of semantics
Lora Aroyo & Guus Schreiber Computer Science
VU University Amsterdam
Semantic Web @ VU Amsterdam
• 40 people, two groups: Web & Media (Schreiber), Knowledge Representation & Reasoning (van Harmelen)
• A few ongoing projects: – europeana.eu: EU culture portal – NL projects on access to cultural heritage: CHIP,
Agora – EU NoTube: Web & TV semantic integration – PrestoPrime: user-generated annotations and
content for TV archives – EU LarKC: platform for massive distributed
incomplete reasoning
The Linked Data Web: typed resources and links
URL URL
Web link
ULAN
Henri Matisse
Dublin Core
creator
Painting “Woman with hat
SFMOMA
Architecture of a Linked Data application
Web pages, databases collections, tables,
converters scrapers
RDF store
RDF files
RDF query & inferencing
Application
Demo using linked data (RPI, Hendler)
The power of simple alignments “Tokugawa”
SVCN period Edo
SVCN is local in-house ethnology thesaurus
AAT style/period Edo (Japanese period) Tokugawa
AAT is Getty’s Art & Architecture Thesaurus
http://e-culture.multimedian.nl/demo/search
Europeana Thought Lab cloud
From metadata to semantic metadata
1. Make vocabulary interoperable
2. Align metadata schema
3. Enrich metadata
4. Align vocabulary
SKOS EDM
Enriching the metadata
Resulting semantic annotation
Learning vocabulary alignments
• Example: learning relations between art styles in AAT and artists in ULAN through NLP of art historic texts – “Who are Impressionist painters?”
Personalized Rijksmuseum
• Interactive user modeling
• Recommendations of artworks and art topics
Mobile museum tour
Video tagging games
NoTube slogan: Putting the user back in the
driving seat
Observations: • Personalized services are now common • But: user data is still under control of
separateapplications • Result: user is faced with multitude of
distributed personal data, hidden in tons of inaccessible cookies
NoTube building blocks (1)
1. TV metadata services EPG metadata grabbers – from 170+ channelsr (issue: channel URLs) – metadata format⎝TV Anytime – real‐time service05‐06 May 2010NoTube 1st
review20Building blocks: 2. Metadata enrichment
Add links to external Web vocabularies and repositories: Lupedia service
NoTube building blocks (2) 3. Linked Open Data for TV
– Access services to major vocabularies – Alignment services between major vocabularies,
where needed (e.g. genre typologies) 4. User activity streams
– Standard for activity stream representation • based on Open Social
– Access services to activity streams • YouTube, Twitter, ....
– Trusted access to “friend” information • implementation of standard like OAuth 2.o
NoTube building blocks (3)
• user profiling• Services for generating user preferences – “Beancounter” – abstractions from activity stream• User‐model representation based on FOAF05‐06 May 2010NoTube 1st review24Building blocks: recommenders• Collaborative recommenders – preferences of friends• Content‐based recommenders – program about Alma Mahler⎝program aboutWalter Gropius • Experiment with mix of these recommenders
Usage scenario & demo
A world of opprtunities is opening!
Thenk you Questions?
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