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March 12, 2014. Data Visualization. John Stasko School of Interactive Computing Georgia Institute of Technology stasko@cc.gatech.edu. Data. Visualization “The use of computer-supported, interactive visual representations of data to amplify cognition” . Visuals help us think

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data visualization

March 12, 2014

Data Visualization

John Stasko

School of Interactive ComputingGeorgia Institute of Technology

stasko@cc.gatech.edu

slide3

Visualization“The use of computer-supported, interactive visual representations of data to amplify cognition”

slide4

Visuals help us think

Provides a frame of reference, temporary storage area

Cognition  Perception

Pattern matching

slide5

1. Presentation

Communicate data and ideas

Explain and inform

Influence and persuade

Provide evidence and support

slide7

http://infographicsnews.blogspot.com/2009/04/mantras-joe-lertolas-maps.htmlhttp://infographicsnews.blogspot.com/2009/04/mantras-joe-lertolas-maps.html

slide9

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 airlinebooking requests

Help recognizeirregularities and analyze what the problem is

http://www.cc.gatech.edu/gvu/ii/selltrend/

Liu, Sullivan, Stasko

TVCG (InfoVis) ‘09

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SnapShot

Present an entire year ofNHL shot data

For ice hockey analyticsand strategists

http://www.cc.gatech.edu/gvu/ii/sportvis/

Pileggi, Stolper, Boyle, Stasko

TVCG (InfoVis) ‘12

slide14

http://www.cc.gatech.edu/gvu/ii/jigsaw

Jigsaw

Visual analytics of large text document collections

Görg, Liu, Kihm, Choo, Park, & StaskoTVCG ‘13

slide15

Project Process Model

Design visualizationtechniques and systems

Understand usersand their problem

Demonstrate to usersfor feedback, reactions

Iteraterepeatedly

Draw upon knowledgeof existing techniques andexperience applying them

Revisit as needed

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Upcoming Talk

Quarterly Analytics Collaborative

Auditorium at Emory HospitalThursday May 8, 1-3 pm

Dr. Sheri ChernetskyTejedorChief Research Information Officer, Emory University School of Medicine

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My Research

http://www.cc.gatech.edu/gvu/ii