1. Information Visualization External Cognition Using perception to amplify cognition 34 x 72 68 23 1 80 24 2 48

2. Information Visualization Information Design/Data Graphics Using external representations to amplify cognition Using abstract external representations

3. Information Visualization Using interactive external representations to amplify cognition –Scientific Visualization = physical data –Information Visualization = abstract data WWW server logs, databases… => No intrinsic visual representation

4. History 10 years of Academic Research Jacques Bertin (cartograph) invented the domain in the 60’s Ben Shneiderman popularized it (~90’s ) Topology of Internet by service provider

5. Example : Table Lens Take a spreadsheet, replace figures with bars + add interactive manipulation of rows and columns http://www.inxight.com

6. Starfield Display (plots) 2D plots with interactive filtering and navigation

7. Treemaps For hierarchical and clustered data Micro/macro reading, size + color encode information http://www.smartmoney.com/marketmap

8. Treemaps (2) 800000 hits in 6 months, interactive display