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Spontaneous Social Networks (DAEV)

Spontaneous Social Networks (DAEV). Michael Hanzl. Institute of Computer Graphics and Algorithms Vienna University of Technology. Motivation. Social Network. Spontaneous Social Network (SSN). Graph Flexible Easy manipulation Ubiquitous availability of social networks

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Spontaneous Social Networks (DAEV)

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  1. Spontaneous Social Networks(DAEV) Michael Hanzl Institute of Computer Graphics and Algorithms Vienna University of Technology

  2. Motivation Social Network SpontaneousSocial Network (SSN) Graph Flexible Easy manipulation Ubiquitousavailabilityofsocialnetworks Applicationswork on top of SSNs • Graph • Rigid • Tedioustomanipulate • One large socialnetwork Michael Hanzl

  3. Overviewof SSNs • Each SSN definessocialrelation • Users : SSNs = M : N • Applicationsworkon top of SSNs • Applications : SSNs =1 : N Michael Hanzl

  4. SSN Lifecycle Michael Hanzl

  5. Share/Discover SSNs • SSN address & SSN applicationpackagenamesharedamongusers • Invitation • QR code • Tones • Buddies Michael Hanzl

  6. Goal • Design andimplementationof SSN frameworkusing XMPP and PubSub • Implementationofexampleapplications • YouTube Shoutwall • Event Scheduling • Central Notifications • Evaluation • Usabilityof SSNs • Suitabilityof XMPP / PubSub Michael Hanzl

  7. Event Scheduling • SimilartoDoodle • Suggestdates, vote, chat • Visualizationoftheresult Michael Hanzl

  8. YouTube Shoutwall • Users send videos, textmessagesandvotes • Bot displaysthesemessages • N (senders) to 1 (receiver) communication Michael Hanzl

  9. Evaluation • System UsabilityScale (SUS) • Ten-itemsquestionnaire • Resultiscompositemeasureofoverallusability Michael Hanzl

  10. SUS Results Beta versiontest Final versiontest 9 people ~81 of 100 points Standard dev.: 8.7 “Good“ • 6 people • ~65 of 100 points • Standard dev.: 19.1 • “Ok“ • Meanof~200 SUS tests: ~70 points (Bangor et. al.) • Accurateresult: ≥12 people(Tullisand Stetson) •  “SSNs belongtothebetterproducts!(Bangor et. al.) Michael Hanzl

  11. Suitabilityof XMPP and PubSub • Goodchoicefor prototype implementation • Solveslow-levelproblems • Libraries readilyavailable • Problems • Security (e.g., accesstodata) • Automatic deletion • Connection losses •  Substantial changesrequired! Michael Hanzl

  12. Summary • Spontaneous Social Networks (SSNs) • Flexible andshort-lived • Applicationswork on top of SSNs • Implementation • SSN Framework • Event Scheduling • YouTube Shoutwall • Central Notifications • Evaluation • “SSNs belongtothebetterproducts!“ Michael Hanzl

  13. Thank you for your attention! • Questions? Michael Hanzl

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