Interactive Exploration of Geospatial Network Visualization

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Presentation of our case study at CHI 2012

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Interactive Exploration of Geospatial Network Visualization

  1. 1. Interac(ve  Explora(on  of  Geospa(al  Network  Visualiza(on  CHI  2012   Till  Nagel,  Erik  Duval,  Andrew  Vande  Moere  
  2. 2. Socializing  at  conferences  
  3. 3. Tabletop  as  social  space  
  4. 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. 5. Prototypes  
  6. 6. Interac(ons  on  a  mul(touch  tabletop  
  7. 7. Pan  Zoom  &  Rotate  
  8. 8. Hints  for  non-­‐obvious  interac(ons  
  9. 9. Demo  at  EC-­‐TEL  2010  
  10. 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. 11. Results  &  Observa(ons  
  12. 12. Insufficient  geographical  informa(on  
  13. 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. 14. Selec(ng  an  affilia(on  
  15. 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. 16. Quality  of  connec(ons  unclear  
  17. 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. 18. Top  3  Issues   1.  Improve  map  style   2.  Allow  single  selecIon  of  mulIple  affiliaIons  in  proximity   3.  Visualize  quality  of  connecIons  
  19. 19. Second  prototype  
  20. 20. Quality  of  connec(ons  
  21. 21. Enabling  selec(on  of  single  marker  in  a  cluster  
  22. 22. Exploding  Menu  
  23. 23. Demo  tudy  at  Hypertext  2011  User  s at  Hypertext  2011   -­‐  Same  setup  as  at  EC-­‐TEL  2010     -­‐   9  parIcipants  
  24. 24. Social  Interac(ons   •   StarIng  discussions   •   ExploiIng  the  visualizaIon  for  story-­‐telling   •   Engaging  other  users  
  25. 25. Conclusions  
  26. 26. Lessons  learnt   •   Design  process   •   Map  style   •   Acceptance  of  mulItouch  interacIon   •   Radial  menu  for  dense  geospaIal  data  
  27. 27. Future  work   •   Radial  menu  for  dense  geospaIal  data   •   Controlled  user  study  on  weighted  edges  
  28. 28. Thank  you!  Ques(ons?   Till  Nagel,  Interac(on  Design  Lab   nagel@-­‐potsdam.de      –      twiTer:  @(llnm  

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