Information Visualization for Knowledge Discovery
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Talk at Chulalongkorn Business School (CBS), Bangkok, Thailand Sep 18, 2012
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Information Visualization for Knowledge Discovery
- 1. INFORMATION VISUALIZATION For knowledge discovery Krist wongsuphasawat @kristwongz Computer Engineering, Chulalongkorn University (Intania87, CP30) Dept. of Computer Science & Human-Computer Interaction Lab, Univ. of Maryland Data Visualization Scientist, Twitter
- 8. data
- 9. INFORMATION VISUALIZATION INFO. VIS. Data visualization visualization
- 10. A picture is worth a thousand words.
- 11. INFORMATION VISUALIZATION Data picture!
- 12. INFORMATION VISUALIZATION INFO. VIS. “ Using visual representations and interaction techniques, which take advantage of the human eye’s broad bandwidth pathway into the mind, to allow users to see, explore, and understand large amounts of information at once.” [Wikipedia]
- 13. INFORMATION VISUALIZATION Visual representation
- 14. Anscombe s quartet #1 #2 #3 #4 X Y X Y X Y X Y 10.0 8.04 10.0 9.14 10.0 7.46 8.0 6.58 8.0 6.95 8.0 8.14 8.0 6.77 8.0 5.76 13.0 7.58 13.0 8.74 13.0 12.74 8.0 7.71 9.0 8.81 9.0 8.77 9.0 7.11 8.0 8.84 11.0 8.33 11.0 9.26 11.0 7.81 8.0 8.47 14.0 9.96 14.0 8.10 14.0 8.84 8.0 7.04 6.0 7.24 6.0 6.13 6.0 6.08 8.0 5.25 4.0 4.26 4.0 3.10 4.0 5.39 19.0 12.50 12.0 10.84 12.0 9.13 12.0 8.15 8.0 5.56 7.0 4.82 7.0 7.26 7.0 6.42 8.0 7.91 5.0 5.68 5.0 4.74 5.0 5.73 8.0 6.89
- 15. Anscombe s quartet #1 #2 #3 #4 Property Value Mean of X 11.0 Variance of X 10.0 Mean of Y 7.5 Variance of Y 3.75 Correlation between X and Y 0.816 Linear regression y = 3.0 +0.5x Identical statistics
- 16. Anscombe s quartet #1 #2 #3 #4 12! 10! 14! 14! 9! 10! 12! 12! 8! 7! 10! 10! 8! 6! 8! 8! 6! 5! 4! 6! 6! 4! 3! 4! 4! 2! 2! 2! 2! 1! 0! 0! 0! 0! 0! 5! 10! 15! 0! 5! 10! 15! 0! 5! 10! 15! 0! 10! 20! But very different
- 17. map of napoleon’s march minard, 1812 • geography • course • time • direction • temperature • quantity of troops
- 18. London Cholera Outbreak john Snow, 1854
- 19. London Cholera Outbreak john Snow, 1854
- 20. crayons
- 21. toys boys girls
- 22. INFORMATION VISUALIZATION Visual representation + User interactions click, drag, zoom, select, change color, etc.! !
- 23. INFORMATION VISUALIZATION =Mantra= Overview first Zoom and filter Details on demand
- 24. Stock market Map of the market
- 25. size = market cap Stock A Stock B
- 26. size = market cap Stock A Stock B color = price change
- 27. Map of the Market
- 28. Market!falls!steeply!Feb!27,!2007,!! with!one!excep:on! Market falls 311 points July 26, 2007, with a few exceptions
- 29. Market falls 311 points July 26, 2007, with a few exceptions
- 30. Market mixed, October 22, 2007
- 34. Disk inventory x http://www.derlien.com/
- 35. Social network relationships http://www.cs.umd.edu/hcil/socialaction
- 36. Person A Person B
- 37. Has a relationship Person A Person B
- 38. Strong relationship Person A Person B
- 39. Strong relationship Person A Person B
- 40. Person A Person B
- 42. Video demo SocialAction
- 43. How people are connected on facebook by country h;p://www.facebookstories.com/stories/1574/#color=con:nent&story=1&country=US!
- 44. How people are connected on facebook by country h;p://www.facebookstories.com/stories/1574/#color=con:nent&story=1&country=US!
- 47. Interactive charts Baby name voyager http://www.babynamewizard.com/voyager
- 48. temporal Data time time time
- 49. event! event! event! event! event! event! event! event! LIFE event! event! event! event! event! event! event! event!
- 50. Time Event type! ( 7:00 am, Wake up ) event! event! event! event! event! event! event! event! LIFE event! event! event! event! event! event! event! event!
- 51. event! event! event! event! event! event! event! event! LIFE event! event! event! event! event! event! event! event! “Event Sequence”
- 52. Electronic health records ( 7:00 am, Wake up ) ( 7:10 am, Shower ) ( 7:30 am, Breakfast )
- 53. Electronic health records ( 8:40 am, Arrival ) ( 8:50 am, ER) ( 9:15 am, ICU )
- 54. Event Sequences Medical Transportation Sports Education Web logs Logistics and more…
- 55. Patient transfers ARRIVAL Arrive the hospital EMERGENCY Emergency room ICU Intensive Care Unit FLOOR Normal room EXIT-ALIVE Leave the hospital alive EXIT-DEAD Leave the hospital dead
- 56. Save more lives! Pa:ent!ID:!45851733 !! Pa:ent!ID:!45851732 !! 12/02/2008!14:26 !Arrival! Pa:ent!ID:!45851731 !! 12/02/2008!14:26 !Emergency! 12/02/2008!14:26 !Arrival! Emergency Department 6,000+ 12/02/2008!22:44 !ICU! 12/02/2008!14:26 !Emergency! 12/02/2008!14:26 !Arrival! 12/05/2008!05:07 !Floor! 12/02/2008!22:44 !ICU! 12/02/2008!14:26 !Emergency! 12/08/2008!10:02 !Floor! 12/05/2008!05:07 !Floor! 12/02/2008!22:44 !ICU! 12/14/2008!06:19 !Discharge! 12/08/2008!10:02 !Floor! 12/05/2008!05:07 !Floor! ! 12/14/2008!06:19 !Discharge! 12/08/2008!10:02 !Floor! ! 12/14/2008!06:19 !Discharge! patients per month !
- 57. What happened to the patients? Arrival ? ICU ? ?
- 61. LifeFlow
- 62. Video demo Data Analysis with LifeFlow
- 63. INFORMATION VISUALIZATION Visual representation + User interactions click, drag, zoom, select, change color, etc.! !
- 64. INFORMATION VISUALIZATION classified by Network Data types 1D: Linear Tree 2D: Map Temporal 3D: Molecules, Biology Multi dimensional (4+ D)
- 65. Benefits of INFORMATION VISUALIZATION DATA ANALYSIS PRESENTATION Detect pattern, trend, outliers! Communicate!
- 66. DATA ANALYSIS
- 67. presentation
- 68. presentation
- 71. DATA INFORMATION VISUALIZATION Visual representation + User interactions DATA ANALYSIS PRESENTATION Detect pattern, trend, outliers! Communicate! Krist wongsuphasawat krist.wongz@gmail.com @kristwongz http://kristw.yellowpigz.com
- 73. DATA INFORMATION VISUALIZATION Visual representation + User interactions DATA ANALYSIS PRESENTATION Detect pattern, trend, outliers! Communicate! Krist wongsuphasawat krist.wongz@gmail.com @kristwongz http://kristw.yellowpigz.com