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7/27/2019 Computational Journalism at Columbia, Fall 2013, Lecture 6: Visualization
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Fron%ersof
Computa%onalJournalism
ColumbiaJournalismSchool
Week6:Visualiza%onOctober9,2013
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Week6:Visualiza%on
Whyvisualize
Bigdataviz
Thevisualexplora%onloop
Editorialchoiceinvisualiza%on
7/27/2019 Computational Journalism at Columbia, Fall 2013, Lecture 6: Visualization
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User
DataRepor%ng
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DataRepor%ng
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visualiza%onmostcommonlyhere
7/27/2019 Computational Journalism at Columbia, Fall 2013, Lecture 6: Visualization
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TopiclinksinGdel,Escher,Bach
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Visualiza%onallowspeopletooffloadcogni%on
totheperceptualsystem,usingcarefullydesignedimagesasaformofexternalmemory.
Thehumanvisualsystemisaveryhigh-
bandwidthchanneltothebrain,witha
significantamountofprocessingoccurringin
parallelandatthepre-consciouslevel.
TamaraMunzner
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Pop-outeffects
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VisualComparisons
lengthorienta%on
size color
...plusnumber,shape,rela%vemo%on,andmuchmore
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Basicideaofvisualiza%on:
Turnsomethingyouwanttofindintosomethingyoucansee
withoutthinkingaboutit
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correla%ons
clusters
extents
outliers
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Week6:Visualiza%on
Whyvisualize
Bigdataviz
Thevisualexplora%onloop
Editorialchoiceinvisualiza%on
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Hownottoshowallthedata
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Hownottoshowallthedata
1. Filter:donotdisplayallobjects
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Hownottoshowallthedata
1. Filter:donotdisplayallobjects2. Summarize:combinemul%pleobjects
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Week6:Visualiza%on
Whyvisualize
Bigdataviz
Thevisualexplora%onloop
Editorialchoiceinvisualiza%on
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BenFry,
Computa8onalInforma8onDesign
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Whyvisualize
Bigdataviz
Thevisualexplora%onloop
Editorialchoiceinvisualiza%on
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Visualiza%onLayers
Datawhatdataischosen,whatomi`ed,whichsources
Visualrepresenta%onencodingfromdatatopicture
Annota%onshighligh%ng,text,notes
Interac%vityorderofpresenta%on,whatusercanalter