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Interactive Exploration of Geospatial Network Visualization
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Interactive Exploration of Geospatial Network Visualization

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Presentation of our case study at CHI 2012

Presentation of our case study at CHI 2012

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Interactive Exploration of Geospatial Network Visualization Presentation Transcript

  • 1. Interac(ve  Explora(on  of  Geospa(al  Network  Visualiza(on  CHI  2012   Till  Nagel,  Erik  Duval,  Andrew  Vande  Moere  
  • 2. Socializing  at  conferences  
  • 3. Tabletop  as  social  space  
  • 4. “   Studies  have  shown  geographic  proximity   is  important  and  does  posi6vely  influence   the  intensity  and  frequency  of  scien6fic   collabora6on.   J.S.  Katz.  Geographical  Proximity  and  ScienIfic   CollaboraIon.  Scientrometrics,  Vol.  31,  No.1   (1994)  
  • 5. Prototypes  
  • 6. Interac(ons  on  a  mul(touch  tabletop  
  • 7. Pan  Zoom  &  Rotate  
  • 8. Hints  for  non-­‐obvious  interac(ons  
  • 9. Demo  at  EC-­‐TEL  2010  
  • 10. User  study  at  EC-­‐TEL  2010   -­‐   FormaIve  user  study   -­‐   12  parIcipants  (9m,  3f,  27-­‐52  years)   -­‐   Execute  simple  tasks   -­‐   Think-­‐out-­‐loud   -­‐   Post-­‐test  quesIonnaire  on  saIsfacIon  
  • 11. Results  &  Observa(ons  
  • 12. Insufficient  geographical  informa(on  
  • 13. Insufficient  geographical  informa(on   Some  parIcipants  had  problems  in  finding  the  places   menIoned  in  the  tasks.         Possible  soluIons:   -­‐   Display  more  place  names  on  map   -­‐   Add  text  field  to  search  for  geographical  features   -­‐   Display  list  of  places,  and  allow  selecIon  
  • 14. Selec(ng  an  affilia(on  
  • 15. Selec(ng  an  affilia(on   When  asked  to  select  an  affiliaIon,  all  parIcipants  tapped  on   its  marker.  However,  users  had  difficul(es  selec(ng  a  single   affilia(on  from  overlapping  markers.       Possible  soluIons:   -­‐   Change  layout  algorithm   -­‐  Keep  clusters,  and  expand  them  on  demand  
  • 16. Quality  of  connec(ons  unclear  
  • 17. Quality  of  connec(ons  unclear   A  visual  connecIon  is  shown  between  two  affiliaIons  if  they   published  at  least  one  paper  together.  There  is  no  indica(on   of  the  amount  of  co-­‐wriTen  papers.     Possible  soluIons:   -­‐  Show  numbers  on  connecIon   -­‐  Map  number  into  visual  connecIon  representaIon  
  • 18. Top  3  Issues   1.  Improve  map  style   2.  Allow  single  selecIon  of  mulIple  affiliaIons  in  proximity   3.  Visualize  quality  of  connecIons  
  • 19. Second  prototype  
  • 20. Quality  of  connec(ons  
  • 21. Enabling  selec(on  of  single  marker  in  a  cluster  
  • 22. Exploding  Menu  
  • 23. Demo  tudy  at  Hypertext  2011  User  s at  Hypertext  2011   -­‐  Same  setup  as  at  EC-­‐TEL  2010     -­‐   9  parIcipants  
  • 24. Social  Interac(ons   •   StarIng  discussions   •   ExploiIng  the  visualizaIon  for  story-­‐telling   •   Engaging  other  users  
  • 25. Conclusions  
  • 26. Lessons  learnt   •   Design  process   •   Map  style   •   Acceptance  of  mulItouch  interacIon   •   Radial  menu  for  dense  geospaIal  data  
  • 27. Future  work   •   Radial  menu  for  dense  geospaIal  data   •   Controlled  user  study  on  weighted  edges  
  • 28. Thank  you!  Ques(ons?   Till  Nagel,  Interac(on  Design  Lab   nagel@-­‐potsdam.de      –      twiTer:  @(llnm