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How to Present Information . Christine Robson October 25, 2007. Topics. Human Perception- Quick Review Presenting Information Visualizations. Quick Review: Human Perception. Stage Theory of Human Perception & Memory. maintenance rehearsal. Sensory Image Store. Sensory Image Store.

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How to Present Information

Christine Robson

October 25, 2007


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Topics

  • Human Perception- Quick Review

  • Presenting Information

  • Visualizations


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Quick Review:Human Perception


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Stage Theory of Human Perception & Memory

maintenance rehearsal

Sensory Image Store

Sensory Image Store

WorkingMemory

WorkingMemory

Long Term

Memory

Long Term

Memory

elaboration

decay

decay,displacement

decay?

interference?

  • Working Memory:

  • Small capacity

  • ~ 7 +/- 2 chunks

    Long Term Memory:

  • Huge capacity

“Short Term”

  • Visual information store

  • Auditory information store

  • Pre-attentive Processing


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Recall vs. Recognition

Two main ways we access memory:

Recognition:

  • when provided with a cue to the information in memory

  • eg. feeling of familiarity, matching, multiple. choice, True/False on exams, recognizing someone you know...

    Recall:

  • drawing the information from memory without (or with minimal) cues.

  • eg. coming up with the name for person you recognized, remembering what command to type, fill-in-the-blank on exams.



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PresentInformation

  • Sibley Guide To Birds

  • Lots of Data

  • Many types ofInformation

  • Yet succinct


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Train Schedules


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Periodic Table of Visualization Methods

http://www.visual-literacy.org/periodic_table/periodic_table.html#



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Chartjunk

The interior decoration of graphics generates a lot of ink that does not tell the viewer anything new. The purpose of decoration varies – to make the graphic appear more scientific and precise, to enliven the display, to give the designer an opportunity to exercise artistic skills. Regardless of its cause, it is all non-data-ink or redundant data-ink, and it is often chartjunk.

Edward Tufte

The Visual Display of Quantitative Information.




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Informationthat matters

Edward

Tufte


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Informationthat matters

Edward

Tufte

Automatic

PPT Charts


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Informationthat matters

Edward

Tufte

Without the

chartjunk


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Data-Ink Maximization

  • Tufte defines two types of ink used to construct a graph:

    • data-ink - the essential non-erasable ink used to present the data

    • non-data-ink - the redundant ink used to elaborate or decorate the graph

  • The Data-Ink Ratio is defined as the percentage: (100 x Data-ink) / (Total ink used on graphic)


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Minard’s Map of Napoleon's March

Map by Charles Joseph Minard portrays the losses suffered by Napoleon's army in the Russian campaign of 1812


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Lots of Information

  • Beginning at the Polish-Russian border, the thick band shows the size of the army at each position

  • The path of Napoleon's retreat from Moscow in the bitterly cold winter is depicted by the dark lower band, which is tied to temperature and time scales.


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Sparklines Edward Tufte

  • data-intense, design-simple, word-sized graphics

  • small, high resolution graphics embedded in a context of words, numbers, images



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Assembly Diagrams




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Networks of relationshipsfrom the web

OPEC Ministers and Large Companies


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Web topics relating to autos

Honda and Toyota are the most frequently discussed

Honda: fuel economy

GM: New models and future plans

HEV’s and SUV’s: Ford


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Visualizing Network Traffic

Walrus

http://www.caida.org/tools/visualization/walrus/gallery1/


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Grokker

  • web-based enterprise search management platform

  • leverages the power of federated content access and visualization to maximize the value of information assets for enterprises, content publishers, libraries and other research-intensive organizations

    • From Grokker.com


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Gap Minder (Google)

  • Hans Rosling’s 2007 TED Talk

  • Software to visualise human development

  • Non-profit venture

    http://www.gapminder.org/



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Facebook Causes AppGuest Lecture Nov 6th

Sean Parker

  • Chairman of Project Agape

  • Managing Partner at The Founders Fund

  • Co-founder of Napster, Plaxo, and Facebook

    Joe Green

  • CEO & co-founder of Project Agape

  • founder and former CEO of essembly.com

    Chris Chan

  • Facebook Causes Application Product Manager

  • Designer and Product Manager at essembly.com 


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Readings

  • “Olympic Message System” for Tuesday, in Google Group

  • Chapters from Tufte up on the Google Group


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Exams Back

  • If you’d like us to explain your score on a question, set up a meeting (email us)

    • Question 1,2,4,6: Christine

    • Question 3,5: John

  • Our policy on disputed grades is to re-grade your entire exam


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Grade Summary

  • Summary page of all your grades

  • Please check for discrepancies


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