Information Visualization for Knowledge Discovery: An Introduction

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  • 1. Informa(on  Visualiza(on  for  Knowledge  Discovery:  An  Introduc+on  Krist  Wongsuphasawat  Dept.  of  Computer  Science  &    Human-­‐Computer  Interac+on  Lab  University  of  Maryland    CP30  /  Intania  87  
  • 2. University  of  Maryland,  College  Park  Ò  near  Washington,  DC  
  • 3. Where?  
  • 4. HCIL  Ò  Human-­‐Computer  Interac+on  Lab  Ò  hKp://www.cs.umd.edu/hcil/  
  • 5. HCI  Ò  Human-­‐Computer  Interac+on  Ò  A  discipline  concerned  with  the  analysis,  design,  implementa+on,   and  evalua+on  Ò  of  interac+ve  compu+ng  systems  for  human  use   Design Analysis Implementation Evaluation
  • 6. Why  HCI?   Computer Abilities Human Abilities 1950 1990 2030
  • 7. HCI  Research  Ò  Devices   É  Touch  screen,  e-­‐Book  Reader,  Wii,  Natal,  Pen   É  Mobile  Phone  Ò  User  Interfaces     É  for  collabora+on,  elderly,  children,  handicaps   É  Query,  Zoomable   É  …  Ò  Design  Process  Ò  Evalua+on  methods  Ò  Informa(on  Visualiza(on  (Info.  Vis.)  Ò  Etc.  
  • 8. Imagina(on  
  • 9. MicrosoK  Surface  
  • 10. Nintendo  Wii  
  • 11. Project  Natal  
  • 12. Mobile  
  • 13. Mobile  
  • 14. Amazon  Kindle  
  • 15. Interna(onal  Children  Digital  Library  
  • 16. GUI  for  elderly  
  • 17. Informa(on  Visualiza(on  
  • 18. Challenges  Ò  Huge  amount  of  data  Ò  How  to  understand  and  make  use  of  it?  Ò  What  ques+on  to  ask?  
  • 19. Example  
  • 20. Challenges  Ò  Iden+fy   É  Trends   É  PaKerns   É  Outliers  Ò  Goals   É  Communica+on   É  Discovery  
  • 21. The  eye...    the  window  of  the  soul,    is  the  principal  means  by  which  the  central  sense    can  most  completely  and  abundantly    appreciate  the  infinite  works    of  nature.    Leonardo  da  Vinci(1452  -­‐  1519)  
  • 22. The eye... the window of the soul, is the principal means by which the central sense can most completely and abundantly appreciate the infinite works of nature. Leonardo da Vinci(1452 - 1519)
  • 23. The eye... the window of the soul, is the principal means by which the central sense can most completely and abundantly appreciate the infinite works of nature. Leonardo da Vinci(1452 - 1519)
  • 24. Gestalt  Principles  hKp://psychology.about.com/od/sensa+onandpercep+on/ss/gestaltlaws.htm  
  • 25. A picture is worth a thousand words.
  • 26. Informa(on  Visualiza(on  Ò  Provide  tools  that  present  data  in  a  way  to  help  people   understand  and  gain  insight  from  it.  Ò  The  use  of  computer-­‐supported,  interac+ve,  visual   representa+ons  of  abstract  data  to  amplify  cogni+on.  
  • 27. Interdisciplinary  Ò  human-­‐computer  interac+on,    Ò  computer  science,    Ò  graphics,    Ò  visual  design,    Ò  psychology,    Ò  and  business  methods  
  • 28. Example  
  • 29. ScaTer  Plot  
  • 30. Correla(on…  What  else?  
  • 31. Outliers   He Rn
  • 32. John  Snow:  The  London  Cholera  Epidemic  of  1854    
  • 33. John  Snow:  The  London  Cholera  Epidemic  of  1854    Ò  hKp://www.csiss.org/classics/content/8  
  • 34. Charles  Minards  map  of  Napoleons  march  
  • 35. The  growth  of  Facebook  
  • 36. Facebook  Ò  Video  
  • 37. Informa(on  Visualiza(on:  Mantra  Ò  Overview,  zoom  &  filter,  details-­‐on-­‐demand  Ò  Overview,  zoom  &  filter,  details-­‐on-­‐demand  Ò  Overview,  zoom  &  filter,  details-­‐on-­‐demand  Ò  Overview,  zoom  &  filter,  details-­‐on-­‐demand  Ò  Overview,  zoom  &  filter,  details-­‐on-­‐demand  Ò  Overview,  zoom  &  filter,  details-­‐on-­‐demand  Ò  Overview,  zoom  &  filter,  details-­‐on-­‐demand  Ò  Overview,  zoom  &  filter,  details-­‐on-­‐demand  Ò  Overview,  zoom  &  filter,  details-­‐on-­‐demand  Ò  Overview,  zoom  &  filter,  details-­‐on-­‐demand    
  • 38. Treemap:  Stock  market,  clustered  by  industry   Map  of  the  Market  -­‐  hKp://www.smartmoney.com/map-­‐of-­‐the-­‐market/  
  • 39. Market  falls  steeply  Feb  27,  2007,    with  one  excep(on  
  • 40. Market  falls  311  points  July  26,  2007,    with  a  few  excep(ons  
  • 41. Market  mixed,  October  22,  2007,    Energy    &  Basic  Material  are  down  
  • 42. TimeSearcher  Ò  Demo  Ò  hKp://www.cs.umd.edu/hcil/+mesearcher  
  • 43. LifeLines  
  • 44. Traffic  
  • 45. Wordle:  Google’s  Corporate  Informa(on  
  • 46. Baby  NameVoyager  Ò  hKp://www.babynamewizard.com/voyager  
  • 47. NetFlix  Rental  PaTerns  http://www.nytimes.com/interactive/2010/01/10/nyregion/20100110-netflix-map.html
  • 48. NetFlix  (2)  
  • 49. NetFlix  (3)  
  • 50. NetFlix  (4)  
  • 51. SocialAc(on  Ò  Video  Ò  hKp://www.cs.umd.edu/hcil/socialac+on  
  • 52. Informa(on  Visualiza(on:  Data  Types  SciViz . Ò  1-­‐D  Linear  Document  Lens,  SeeSo^,  Info  Mural,  Value  Bars   Ò  2-­‐D  Map    GIS,  ArcView,  PageMaker,  Medical  imagery   Ò  3-­‐D  World    CAD,  Medical,  Molecules,  Architecture     Ò  Mul(-­‐Var    Parallel  Coordinates,  Spo_ire,  XGobi,  Visage,          Influence  Explorer,  TableLens,  InfoViz DEVise   Ò  Temporal    Perspec+ve  Wall,  LifeLines,  Lifestreams,          Project  Managers,  DataSpiral   Ò  Tree    Cone/Cam/Hyperbolic,  TreeBrowser,  Treemap   Ò  Network  Netmap,  netViz,  SeeNet,  BuKerfly,  Mul+-­‐trees   (Online  Library  of  Informa+on  Visualiza+on  Environments)   hKp://otal.umd.edu/Olive  
  • 53. ManyEyes:  A  web  sharing  plajorm   hKp://services.alphaworks.ibm.com/manyeyes/app  
  • 54. Conclusion  Ò  Informa+on  Visualiza+on   É  Provide  tools  that  present  data  in  a  way  to  help  people   understand  and  gain  insight  from  it.   É  Applicable  to  various  domains  Ò  More  info   É  hKp://www.cs.umd.edu/hcil   É  hKps://wiki.cs.umd.edu/cmsc734_09/  Ò  Contact   É  kristw@cs.umd.edu   É  hKp://www.cs.umd.edu/~kristw  Ò  Acknowledgement   É  Ben  Shneiderman’s  slides   É  Ben  Bederson’s  slides   É  hKp://www.cs.umd.edu/hcil/pubs/presenta+ons/  
  • 55. Thank  you