Multiple View Strategies cs5984: Information Visualization Chris North

Quiz 2 strategies for making overviews: hammer: visually compress Chainsaw: cut »Aggregate items or attrs »Eliminate items or attrs

Problem Can’t display everything in one view Scale: Many attributes Many items Complex data Multiple data tables (Relational databases) Multiple data types (e.g. tables, images) Need different visualizations for different parts of data

Solution Multiple Views Linked a.k.a. Tightly coupled, Coordinated views User interaction in one view affects other view(s) Ties parts together Separates data into parts

Strategies for Linking A Rough Taxonomy: Link = link between actions in two views 3 possible combinations: select  select:Brushing and Linking select  navigate: Overview and Detail navigate  navigate: Synchronized Navigation select, navigate select, navigate link

Brushing and Linking select  select Many attributes

Brushing and Linking Multiple perspectives

Brushing and Linking Multiple data types Mutually exclusive structures

Overview and Detail select  navigate Word Web frames

Overview and Detail Many items, few attributesto Few items, many attributes (something about everything) (everything about something)

Overview and Detail Drill down 1:M 3 levels: folders files file

Synchronized Navigation navigate  navigate E.g. synchronized scrolling

Synchronized Navigation Isnt it nice? Dreamweaver macromedia

Quiz Dynamic Queries?

Quiz Transitivity

Visualization SpreadSheet Chi, “Visualization Spreadsheet” Mudita, Abhi

Snap North, “Snap-Together Visualization” Varun, Kumar

Web Logs

Census Data

Photo Library

Mailing List

Visage Roth et al, CMU Data-centric Drag-and-drop data Brushing Sage: view construction

Next Week Book chapter 8 Tues: Trees Rao, “Hyperbolic Trees” » david, harsha Robertson, “Cone Trees” » anuj, atul Thurs: Trees Johnson, “Treemaps” » vishal, jeevak Beaudoin, “Cheops” » jon, mudita

Homework #3 Due Thurs Nov 1 See website for important details Zoomable visualization design Use Jazz HiNote to create an information space Topic ideas: hobby, life story, event, academic field Goal: help someone learn about topic 1 page report: analysis of zooming concept, your design Be creative, have fun! New!