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 LinkingA 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

• Webframes

Overview and Detail

Many items, few attributes to Few items, many attributes (something about everything) (everything about something)

Overview and DetailDrill 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

Visage

• Roth et al, CMU

• Data-centric

• Drag-and-drop data

• Brushing

• Sage: view construction

• http://www-2.cs.cmu.edu/~sage/visage.html

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!

• http://infovis.cs.vt.edu/cs5984/homework3/chnorth1.html

• http://vtopus.cs.vt.edu/~north/infoviz/hinoteapplet.html

New!