1. Information Visualization Theresa Nguyen 4/10/2001

2. Introduction Define and illustrate Information Visualization Define and illustrate Information Visualization Graphics Graphics  Communicate an idea  Create or discover an idea  Using vision to think Computers Computers  Dynamic, real-time, interactivity.

3. External Cognition The role of external world in thought and reasoning. The role of external world in thought and reasoning. External Aids can enhance cognition External Aids can enhance cognition Examples: Examples:  Multiplication Aids  Navigation Charts  Diagrams

4. Multiplication Aids 125 125 x 14 500 500+1250 1750 1750 Difficult to hold partial results in memory without special algorithms. (Tractenberg ?) Difficult to hold partial results in memory without special algorithms. (Tractenberg ?) Graphical computation visualization. Graphical computation visualization.

5. Navigation Charts Navigation device at sea. Navigation device at sea. The earth is round, the chart is flat. The earth is round, the chart is flat. A calculator and storage device. A calculator and storage device.  Stores earth’s irregularities

6. Diagrams Can lead to great insights or lack of. Can lead to great insights or lack of. Decision to launch Challenger. Decision to launch Challenger.  Presentation obscures variable of interest (temperature) Display massive data (gene expression) Display massive data (gene expression) “The Tube” “The Tube”

7. Visualization: Visualization:  “The use of computer-supported, interactive, visual representations of data to amplify cognition.”  Goal: discovery, decision making, explanation Information Visualization: Information Visualization:  “The use of computer-supported?, interactive, visual representations of abstract data to amplify cognition.”

8. Difference Between Scientific and Information Visualization Scientific Scientific  Relates to and represents visually physical things (eg. Mountains, Human Body) Information Visualization Information Visualization  Represent data in abstract forms

9. History Computer Graphics Computer Graphics User Interface User Interface Resource scientist, physicist, computer scientist Resource scientist, physicist, computer scientist

10. Examples of IV Active Diagrams Active Diagrams  Periodic Table Large-Scale Data Monitoring Large-Scale Data Monitoring  Large amount of real time data.  Stocks and bonds Information Chromatography Information Chromatography  Detect telephone fraud

11. Cognitive Amplification

12. Knowledge Crystallization Knowledge Crystallization  Gather information  Makes sense of it by constructing a schema  Package into communication or action Produce patterns that can be detected and abstracted. Produce patterns that can be detected and abstracted.

13. Competitive Landscape PROPEL Biomedical Mendel Group BioStrategiesBioMed Capital Group Technology Assessment XXXX Regulatory Analysis X X Reimbursement Analysis X Custom Research XXXX Strategic Planning XXXX Licensing XX X Tactical Management X X Location Irvine, CA Redwood City, CA Chicago, ILNew York

14. Cost Structure Cost Structure  Representation of information  Available operations on the info  Resource capacities of representation and operations  Activity statistics

15. Visualization Amplifies Cognition Visualization Amplifies Cognition  Larkin and Simon study 1. Increase memory and processing resources 2. Reduce information searching 3. Enhance detection of patterns 4. Enable perceptual inference operations 5. Use perception attention for monitoring 6. Encode information in a manipulative medium