1. Information Visualization Mike Brzozowski cs376 October 28, 2004

2. Card, et al  Buzzwords galore… External cognition: external world External cognition: external world Information design: external representations Information design: external representations Data graphics: abstract representations Data graphics: abstract representations Visualizations: interactive representations Visualizations: interactive representations Scientific: …of physical dataScientific: …of physical data Information: …of abstract dataInformation: …of abstract data

3. Card, et al  How “intuitive” must external cognition be?

4. Card, et al  How “intuitive” must data graphics be?

5. Knowledge Crystallization Task Forage for data Search for schema Instantiate schema Problem solve Decide or act

6. Visualization Levels VisualobjectsVisual knowledge tools Information workspace Infosphere

7. Electoral Vote electoral-vote.com

8. electoral-vote.com

9. Electoral Vote electoral-vote.com

10. Electoral Vote electoral-vote.com Kerry257 Bush274

11. Visualizations Amplify Cognition  Increased resources  Reduced search  Enhanced pattern recognition  Perceptual inference  Perceptual monitoring  Manipulable medium

12. Card, et al  Another geographic visualization folding.stanford.edu

13. Large-Scale Data: Tree Maps  Interactive Visualization smartmoney.com

14. NewsMap

15. Data Tables: PivotTables

17. Sociograms

18. Card, et al  Rao and Card  Is it really that simple? Transform data into a table and then into a visualization? visualization