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Interac(ve	
  Explora(on	
  of	
  Geospa(al	
  
Network	
  Visualiza(on	
  



CHI	
  2012	
      Till	
  Nagel,	
  Erik	
  Duval,	
  Andrew	
  Vande	
  Moere	
  
Socializing	
  at	
  conferences	
  
Tabletop	
  as	
  social	
  space	
  
“	
  
   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)	
  
Prototypes	
  
Interac(ons	
  on	
  a	
  mul(touch	
  tabletop	
  
Interactive Exploration of Geospatial Network Visualization
Pan	
  




Zoom	
  &	
  Rotate	
  
Hints	
  for	
  non-­‐obvious	
  interac(ons	
  
Demo	
  at	
  EC-­‐TEL	
  2010	
  
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	
  
Results	
  &	
  Observa(ons	
  
Insufficient	
  geographical	
  informa(on	
  
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	
  
Selec(ng	
  an	
  affilia(on	
  
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	
  
Quality	
  of	
  connec(ons	
  unclear	
  
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	
  
Top	
  3	
  Issues	
  

 1.  Improve	
  map	
  style	
  
 2.  Allow	
  single	
  selecIon	
  of	
  mulIple	
  affiliaIons	
  in	
  proximity	
  
 3.  Visualize	
  quality	
  of	
  connecIons	
  
Second	
  prototype	
  
Interactive Exploration of Geospatial Network Visualization
Quality	
  of	
  connec(ons	
  
Enabling	
  selec(on	
  of	
  single	
  marker	
  in	
  a	
  cluster	
  
Exploding	
  Menu	
  
Interactive Exploration of Geospatial Network Visualization
Demo	
  tudy	
  at	
  Hypertext	
  2011	
  
User	
  s at	
  Hypertext	
  2011	
  

 -­‐  Same	
  setup	
  as	
  at	
  EC-­‐TEL	
  2010	
  

 	
  
 -­‐ 	
  9	
  parIcipants	
  
Social	
  Interac(ons	
  

 • 	
  StarIng	
  discussions	
  
 • 	
  ExploiIng	
  the	
  visualizaIon	
  for	
  story-­‐telling	
  
 • 	
  Engaging	
  other	
  users	
  
Conclusions	
  
Lessons	
  learnt	
  

 • 	
  Design	
  process	
  
 • 	
  Map	
  style	
  
 • 	
  Acceptance	
  of	
  mulItouch	
  interacIon	
  
 • 	
  Radial	
  menu	
  for	
  dense	
  geospaIal	
  data	
  
Future	
  work	
  

 • 	
  Radial	
  menu	
  for	
  dense	
  geospaIal	
  data	
  
 • 	
  Controlled	
  user	
  study	
  on	
  weighted	
  edges	
  
Thank	
  you!	
  Ques(ons?	
  


               Till	
  Nagel,	
  Interac(on	
  Design	
  Lab	
  
               nagel@-­‐potsdam.de	
  	
  	
  –	
  	
  	
  twiTer:	
  @(llnm	
  

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Interactive Exploration of Geospatial Network Visualization

  • 1. Interac(ve  Explora(on  of  Geospa(al   Network  Visualiza(on   CHI  2012   Till  Nagel,  Erik  Duval,  Andrew  Vande  Moere  
  • 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)  
  • 6. Interac(ons  on  a  mul(touch  tabletop  
  • 8. Pan   Zoom  &  Rotate  
  • 11. 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  
  • 14. 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  
  • 16. 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  
  • 18. 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  
  • 19. Top  3  Issues   1.  Improve  map  style   2.  Allow  single  selecIon  of  mulIple  affiliaIons  in  proximity   3.  Visualize  quality  of  connecIons  
  • 23. Enabling  selec(on  of  single  marker  in  a  cluster  
  • 26. Demo  tudy  at  Hypertext  2011   User  s at  Hypertext  2011   -­‐  Same  setup  as  at  EC-­‐TEL  2010     -­‐   9  parIcipants  
  • 27. Social  Interac(ons   •   StarIng  discussions   •   ExploiIng  the  visualizaIon  for  story-­‐telling   •   Engaging  other  users  
  • 29. Lessons  learnt   •   Design  process   •   Map  style   •   Acceptance  of  mulItouch  interacIon   •   Radial  menu  for  dense  geospaIal  data  
  • 30. Future  work   •   Radial  menu  for  dense  geospaIal  data   •   Controlled  user  study  on  weighted  edges  
  • 31. Thank  you!  Ques(ons?   Till  Nagel,  Interac(on  Design  Lab   nagel@-­‐potsdam.de      –      twiTer:  @(llnm