cs5984: Information Visualization Chris North 1-D cs5984: Information Visualization Chris North

1-D

Keyhole Problem No context Lost, disoriented Where am I? Where can I go? Where do I want to go? How do I get there?

Visual Overview Map, organization (spatial layout of concepts) What information is (not) available? Adds context info, relationships Enables direct access Encourages exploration HCI metrics: Improves user performance, learning time, error rates, retention, satisfaction

Navigation Approaches Detail Only Zooming Overview+Detail Focus+Context (Distortion, fisheye)

Today Plaisant, “Lifelines”, p 285 Mackinlay, “Perspective Wall”, web chris r., margaret Mackinlay, “Perspective Wall”, web sumithra, gowri

Assignment Read for Tues Project Proposal due Feb 20! Eick, “SeeSoft”, p 419 purvi, prasuna Eick, “Data Visualization Sliders”, p 251 (2 pages) Project Proposal due Feb 20!

Assignment: 2-D Read for Thurs Read for Tues (1.5 weeks) Bederson, “Pad++”, p 530 dilshad, satya Furnas, “Space-Scale Diagrams”, web Read for Tues (1.5 weeks) Robertson, “Document Lens”, p 562 ashwini, aejaaz Spence, “Bifocal Lens”, p 331,333