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Presentation for WWW2007 panel on multimedia metadata and the semantic web

Presentation for WWW2007 panel on multimedia metadata and the semantic web

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Developers Are People, Too Developers Are People, Too Presentation Transcript

  • Developers are People, Too Mor Naaman Yahoo! Research Berkeley *Any views or opinions expressed during this panel are those of the author only and do not represent those of Yahoo, Yahoo! Research, or Flickr -- sometimes they do not even represent the author himself.
  • People are Strange People are Strange. http://flickr.com/photos/genial23/334807527
  • Why do People Tag?
    • Well, mostly, they don’t
    • But if they do (say, on Flickr):
    “ Why We Tag”, CHI2007
  • Explanation, please
    • Simple
      • Source: Rashmi Sinha
    • Powerful
    • Tied with their natural motivations
  • Our Mission
    • Automatically generate tag semantics
    • Few places to start
      • Word-based models
        • E.g., Flickr Clustering
        • E.g., Subsumption
        • E.g., LSI
    • Metadata can help, too
  • tagmaps.research.yahoo.com “ World Explorer”, JCDL2007
  • Extracting Event/Place Semantics “ Extracting Tag Semantics”, SIGIR2007
  • Developers are people, too! http://flickr.com/photos/fotex/217896072/
  • Developer Needs
    • Requirements for developing applications that make use or manipulate metadata:
    • Simple
    • Powerful
    • Tied with their natural motivations
    Just like people!
  • I too am a Web2.0 Developer
    • My team will support a format:
      • If it’s simple
      • If it’s useful for us
      • If it “plays nice” with key applications
    • So far:
      • RSS and GEO-RSS
      • KML and GPX
      • EXIF (read only)
      • Flickr Machine Tags
  • Machine Tags??
    • “ Machine tags are not RDF but they could play RDF on TV.”
      • - Aaron Cope, Hackr (Flickr)
    Book:author=“Tim B.L.” celltower:lac=205 Geo:latitude=23.12 ylocal:venue=224323 camel:humpcount=2 upcoming:event=12413 flower:color=red summit:altitude=2321
  • What’s the Point?
    • Format is emerging
      • Reflects needs of developers
      • Reflects properties of data
    • Simple
    • Powerful
  • What’s the Problem?
    • Namespace/semantics not defined
      • Multiple formats for same semantics
      • Multiple semantics for same subjects/predicates/objects…
    • It’s up to us to make sense of it
      • Us == researchers
    • Schema mapping, pattern extraction and recognition, semantic analysis…
  • Discuss: The Semantic Web is Dead Welcome to the Emerging-Semantics Web!
  • Send me your wrath More fun and games: www.yahooresearchberkeley.com Mor Naaman http://infolab.stanford.edu/~mor