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Published

Keynote presentation from Prof. Guanling Chen, University of Massachusetts Lowell for MSM 2011 workshop

Keynote presentation from Prof. Guanling Chen, University of Massachusetts Lowell for MSM 2011 workshop

Published in Technology , Business
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Transcript

  • 1. Sharing Location over Social Media Guanling Chen University of Massachusetts Lowell http://www.cs.uml.edu/~glchen glchen@cs.uml.edu
  • 2. MSM 2011, Boston, MA 2
  • 3. DodgeballMSM 2011, Boston, MA 3
  • 4. Brightkite, GowallaMSM 2011, Boston, MA 4
  • 5. Loopt, Google LatitudeMSM 2011, Boston, MA 5
  • 6. FoursquareMSM 2011, Boston, MA 6
  • 7. Facebook PlacesMSM 2011, Boston, MA 7
  • 8. Check-InMSM 2011, Boston, MA 8
  • 9. Foursquare Check-InsMSM 2011, Boston, MA 9
  • 10. Why Check-In?MSM 2011, Boston, MA 10
  • 11. MSM 2011, Boston, MA 11
  • 12. MSM 2011, Boston, MA 12
  • 13. MSM 2011, Boston, MA 13
  • 14. MSM 2011, Boston, MA 14
  • 15. Brightkite StudyMSM 2011, Boston, MA 15
  • 16. Data –  About two years Updates 4,460,161 –  Daily Friends List 168 days –  Users Profile 70,337MSM 2011, Boston, MA 16
  • 17. CharacteristicsAnalysis of a Location-Based Social NetworkNan Li and Guanling ChenInternational Symposium on Social Intelligence and Networking (SIN)Vancouver, Canada, August 2009.MSM 2011, Boston, MA 17
  • 18. Tag CloudMSM 2011, Boston, MA 18
  • 19. ClassificationMSM 2011, Boston, MA 19
  • 20. Proportion of Protected Updates (PoPU)Sharing Location in Online Social NetworksNan Li and Guanling ChenIEEE Networks Special Issue on Online Social Networks, 24:5, pages20-25, September-October 2010.MSM 2011, Boston, MA 20
  • 21. GenderMSM 2011, Boston, MA 21
  • 22. AgeMSM 2011, Boston, MA 22
  • 23. # visited placesMSM 2011, Boston, MA 23
  • 24. FriendsMSM 2011, Boston, MA 24
  • 25. InfluenceMSM 2011, Boston, MA 25
  • 26. Privacy DesignMSM 2011, Boston, MA 26
  • 27. Control & FeedbackDesign for Privacy in Ubiquitous Computing Environments.Victoria Bellotti and Abigail Sellen.ECSCW 1993.MSM 2011, Boston, MA 27
  • 28. CaptureMSM 2011, Boston, MA 28
  • 29. MSM 2011, Boston, MA 29
  • 30. ConstructionMSM 2011, Boston, MA 30
  • 31. AccessibilityMSM 2011, Boston, MA 31
  • 32. PurposesAnalyzing Privacy Designs of Mobile Social Networking ApplicationsGuanling Chen and Faruq RahmanIEEE/IFIP International Symposium on Trust, Security and Privacy forPervasive Applications (TSP). Shanghai, China, December, 2008.MSM 2011, Boston, MA 32
  • 33. UI UsabilityA Toolkit for Usability Testing of Mobile ApplicationsXiaoxiao Ma, Bo Yan, Guanling Chen, Chunhui Zhang, Ke Huang, and Jill DruryThe 3rd International Conference on Mobile Computing, Applications, and Services(MobiCase)Los Angeles, CA, October 2011. MSM 2011, Boston, MA 33
  • 34. Public location disclosure control Business location Cross boundary disclosure control sharing controlMSM 2011, Boston, MA 34
  • 35. User can control whether to share this Check-in with friends inline User can control whether to share this Check-in to Facebook or Twitter inlineMSM 2011, Boston, MA 35
  • 36. PolicyMSM 2011, Boston, MA 36
  • 37. MSM 2011, Boston, MA 37
  • 38. Mobile Usability TestingMSM 2011, Boston, MA 38
  • 39. Android UI Framework Dialog Button Widget (View Class) AdapterView (ViewGroup) MenuMSM 2011, Boston, MA 39
  • 40. Recorded EventsRecorded  Android  UI  Events  are  summarized  in  the  following  table,  classified  by  their  adhering  window   Unhandled Area MSM 2011, Boston, MA 40
  • 41. State Machine ModelExpert  State  Machine:  Expert  States  and  Transi3ons:  MSM 2011, Boston, MA 41
  • 42. Traffic Flow ChartUser  Traffic  Flow  Chart:   Incoming  flow   Outgoing  flow   Flow  to  Mistake   States   Backtracking   flow  Mistake  States  and  Transi3ons:   MSM 2011, Boston, MA 42
  • 43. Reported Metrics Signs  for  poten3al  usability  problems:   -­‐ Too  many  backtracking   -­‐ Par0cipants  cannot  complete  one  step   -­‐ Low  correct  flow  ra0o  MSM 2011, Boston, MA 43
  • 44. EvaluationUsability  Problems  idenFfied  by  Event  Logging  Tool:   *  Numbers  in  parenthesis  are  problems  idenFfied  by  Laboratory-­‐ based  Usability  tesFng  method:   -­‐  Good  at  iden3fying  cri3cal  (major  and  catastrophe)   usability  problems.   -­‐  Not  good  at  iden3fying  cosme3c  usability  problems.   MSM 2011, Boston, MA 44
  • 45. Q&A http://www.cs.uml.edu/~glchen/MSM 2011, Boston, MA 45