cambridge 20 06 2012
DESCRIPTION
Dr. Manuel Mazzara on the Polidoxa platform at Cambridge University.TRANSCRIPT
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Social networks and collective intelligence
A return to the Agora
20/06/2012, Cambridge
Manuel MazzaraUNU-IIST and Newcastle University
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A Fantastic New Era…
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... and an Old Problem Made Worse
Trustworthy?
Relevant?Newsworthy?
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Traditional Media Gatekeeping
World Audience
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13/04/23 5
“There are no facts, only
interpretations”
(Friedrich Nietzsche)
Power of Media
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6
Power of Illusion
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7
Overcoming Gatekeeping ?
Internet offers an open platform where users can
interactively exchange information News is multimedia, multi-
dimensional, timely/timeless The user can control relevance The user is able to choose topics,
sources … The user can interact with
authors, other readers/followers …
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Traditional/New Media Synopsis
Traditional media
Search engines
Social networks
Relevance/presence of the news
Decided by the
publisher
Decided by the
algorithm
Decided by the network
Interaction / feedback
Not allowed
Not allowed Possible
Topic
Content
Decided by the
publisher
Decided by the user
Decided by the network
Expand topic Not allowed
Allowed Allowed
Deciding Source Not allowed
Allowed Allowed
Individual (trust-based) ranking
Absent Absent Absent
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We will either find a way, or make one ...”Aut inveniam viam aut faciam”
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Maslow’s Law of the Instrument
”It is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.”
- H. Maslow, The Psychology of Science:A Reconnaissance. Harper & Row, 1966
13/04/23 10
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Create a virtual agora where people can freely discuss and exchange information
More control over the news/information
Think Inform Verify Interact Take an active role Make more informed decisions
Goals of Polidoxa
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The core ranking parameters:
configurable static parameters trustworthiness of contacts (decided by the
user) trustworthiness of sources/domains… (by the
user)
Dynamic Parameters depending on network activities and contact’s
distance evaluate (among other things) “like” and
“dislike” many “like” for a post is and indication of
how your network perceives it
Polidoxa: ranking algorithm
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Trustworthyness and ranking
www.page-x.com 4
www.page-z.com 6
www.page-y.com 3
News from z
News from x
News from y
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Synopsis Continued
Polidoxa
Relevance of the news Decided by the user
Interaction / feedback Allowed
Topic
content
Decided by the user and his/her network
Expand topic Allowed
Deciding Source Allowed
Individual trust-based ranking
Possible
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Be creative when solving problems, use your right brain
hemisphere more often!
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Joint work with:
Antonio MarraffaLuca Biselli
Simona De NicolaLuca Chiarabini
Georgios Papageorgiou Pier Paolo Greco
Nafees Qamar
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