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Expertise reseaux

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Presentation given by Tommaso Venturini, professeur at Sciences Po Paris and research coordinator of the médialab Sciences Po. During a workshop being held in Paris with the researchers of open …

Presentation given by Tommaso Venturini, professeur at Sciences Po Paris and research coordinator of the médialab Sciences Po. During a workshop being held in Paris with the researchers of open university.


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  • 1. Who are the experts ?What’s an expert ?
  • 2.
  • 3. Simon Schaffer
    … It is not that we don’t trust anybody, it is that we don’t know who to trust. We are surrounded by experts …
    … This is not a period when there has been a crisis of expertise or a loss of deference. On the contrary you can argue that people defer to an unprecedentedly large number of experts …
    How To Think About Science – CBC Radio
  • 4. Simon Schaffer
    … If we had better, more accurate more effective models of how expertise and trust work in our culture (and above all how trust and expertise are distributed with the sciences and with technology), I think that this would be a crucially progressive move in our politics as well …
    How To Think About Science – CBC Radio
  • 5.
  • 6. digital traces of expertise
    Visibility
    Position
    Activity
    Influence
  • 7. Visibility
  • 8.
  • 9.
  • 10.
  • 11.
  • 12. Position
  • 13.
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19. Connectivity (degree)
  • 20. Connectivity (accessibility)
  • 21. Centrality (betweeness)
  • 22. Centrality (closeness)
  • 23. Activity
  • 24.
  • 25. What is Twitter, a Social Network or a News Media?
    HaewoonKwak, Changhyun Lee, Hosung Park, and Sue Moon
    19th International World Wide Web (WWW) Conference, April 26-30, 2010
  • 26. Influence
  • 27.
  • 28.
  • 29. Expert of what? and where?
    Web (hyperlinks)
    Science (references)
    Media (mention)
    Social networks (strong/weak ties)

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