Information VisualizationInformation Visualization

Mike BrzozowskiMike Brzozowski

cs376cs376

October 28, 2004October 28, 2004

Card, et alCard, et al

Buzzwords galore…Buzzwords galore… External cognitionExternal cognition: external : external worldworld Information designInformation design: external : external representationsrepresentations Data graphicsData graphics: : abstractabstract representations representations VisualizationsVisualizations: : interactiveinteractive representations representations

• ScientificScientific: …of : …of physicalphysical data data• InformationInformation: …of : …of abstractabstract data data

Card, et alCard, et al

How “intuitive” must external cognition be? How “intuitive” must external cognition be?

Card, et alCard, et al

How “intuitive” must data graphics be?How “intuitive” must data graphics be?

Knowledge CrystallizationKnowledge Crystallization

Task

Problem solve

Decideor act

Search forschema

Instantiateschema

Forage for data

Visualization LevelsVisualization Levels

InfosphereInfosphere

Information workspaceInformation workspace

Visual Visual knowledge toolsknowledge tools

VisualVisualobjectsobjects

Electoral VoteElectoral Vote

electoral-vote.comelectoral-vote.com

Electoral VoteElectoral Vote

electoral-vote.com

Electoral VoteElectoral Vote

electoral-vote.com

Electoral VoteElectoral Vote

electoral-vote.com

Kerry 257Bush 274

Visualizations Amplify CognitionVisualizations Amplify Cognition

Increased resourcesIncreased resources Reduced searchReduced search Enhanced pattern recognitionEnhanced pattern recognition Perceptual inferencePerceptual inference Perceptual monitoringPerceptual monitoring Manipulable mediumManipulable medium

Card, et alCard, et al

Another geographic visualizationAnother geographic visualization

folding.stanford.edufolding.stanford.edu

Large-Scale Data: Tree MapsLarge-Scale Data: Tree Maps

Interactive VisualizationInteractive Visualization

smartmoney.com

NewsMap

Data Tables: PivotTablesData Tables: PivotTables

SociogramsSociograms

Card, et al Card, et al Rao and Card Rao and Card

Is it really that simple? Transform data into Is it really that simple? Transform data into a table and then into a a table and then into a visualizationvisualization??