Napoleon’s March to Moscow, Charles J. Minard, 1869 [From http://en.wikipedia.org] 27
Cross References Found in the Bible [From Chris Harrison] 28
Three functions of Visualizations• Record information (记录) – Photographs, blueprints, …• Support reasoning about information (analyze) (分析) – Process and calculate – Reason about data – Feedback and interaction• Convey information to others (present) (演示) – Share and persuade – Collaborate and revise – Emphasize important aspects of data [Slides from Pat Hanrahan] 29
Visualization Discovery Process “The Purpose of Data Visualization is to Convey Information to People.” 用户(User) Pat Haranhan, Stanford 感知和认知 数据 可视化 图像 知识 Perception & Data Visualization Image Knowledge Cognition 设置 探索 Specification Exploration 数据(Data) 可视化(Visualization) 用户(User) 可视化发现过程 (Visualization Discovery Process) 30
42Figure courtesy of the University of Chicago Press. From the American Journal of Sociology, Vol. 100, No. 1."Chains of affection: The structure of adolescent romantic and sexual networks," Bearman PS, Moody J, Stovel K.
Issues1. For programmers2. Rigid syntax3. Only shows exact matches4. Too few or too many hits5. No hint on how to reformulate the query6. Slow question-answer loop7. Results returned as table[Slides from Pat Hanrahan] 64
Use Today• Scientific Research• Regulatory and Legal Communities• Intelligence Analysis• DOE and Department of Defense• Market Assessments• Capability Analysis -Resumes• Medical and Pharmaceutical Communities• National Security and Law Enforcement• Information Assurance, Web Analytics• Technology Scanning, Asset and Intellectual Property Management 79