Transcript Slide 1

March 12, 2014
Data Visualization
John Stasko
School of Interactive Computing
Georgia Institute of Technology
[email protected]
Data
Visualization
“The use of computer-supported,
interactive visual representations of
data to amplify cognition”
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Visuals help us think
Provides a frame of reference, temporary storage area
Cognition  Perception
Pattern matching
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1. Presentation
Communicate data and ideas
Explain and inform
Influence and persuade
Provide evidence and support
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AJC, Jan. 3, 2014
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http://infographicsnews.blogspot.com/2009/04/mantras-joe-lertolas-maps.html
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www.cdc.gov/mmwr/preview/mmwrhtml/mm5212a1.htm
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2. Analysis
understand, compare, decide, judge, evaluate,
assess, determine, …
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Many Data Analysis Approaches
Statistics
Database & information retrieval
Data mining
Machine learning
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Visualization most useful in exploratory data analysis
Don’t know what you’re looking for
Don’t have a priori questions
Want to know what questions to ask
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SellTrend
Web-based airline
booking requests
Help recognize
irregularities and
analyze what the
problem is
http://www.cc.gatech.edu/gvu/ii/selltrend/
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Liu, Sullivan, Stasko
TVCG (InfoVis) ‘09
SnapShot
Present an entire year of
NHL shot data
For ice hockey analytics
and strategists
http://www.cc.gatech.edu/gvu/ii/sportvis/
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Pileggi, Stolper, Boyle, Stasko
TVCG (InfoVis) ‘12
http://www.cc.gatech.edu/gvu/ii/jigsaw
Jigsaw
Visual analytics of large text document collections
Görg, Liu, Kihm, Choo, Park, & Stasko
TVCG ‘13
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Project Process Model
Design visualization
techniques and systems
Understand users
and their problem
Iterate
repeatedly
Revisit as needed
Draw upon knowledge
of existing techniques and
experience applying them
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Demonstrate to users
for feedback, reactions
Upcoming Talk
Quarterly Analytics Collaborative
Auditorium at Emory Hospital
Thursday May 8, 1-3 pm
Dr. Sheri Chernetsky Tejedor
Chief Research Information Officer, Emory University School of Medicine
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My Research
http://www.cc.gatech.edu/gvu/ii
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