Information VisualisationMultimedia

25 - 09 - 2009

Joris Klerkxjoris.klerkx@cs.kuleuven.be

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Information Visualisatie

... is the use of interactive visual representations of abstract data to amplify cognition. [Card et al.]

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Information Visualisatie

... is the use of interactive visual representations of abstract data to amplify cognition. [Card et al.]

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Let A, B, C, D, E be natural persons, departments of universities, states, etc. • A is positively affected by B and affects B, C and E positively. • B is affected by A and C positively and affects D negatively and A positively. • C is positively affected by A, negatively affected by E, and affects B positively. • B and E negatively affect D. • E affects C and D negatively and is positively affected by A.

What’s going on?

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Information Visualisation

A B

C

DE

Let A, B, C, D, E be natural persons, departments of universities, states, etc. • A is positively affected by B and affects B, C and E positively. • B is affected by A and C positively and affects D negatively and A positively. • C is positively affected by A, negatively affected by E, and affects B positively. • B and E negatively affect D. • E affects C and D negatively and is positively affected by A.

What’s going on?

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Information Visualisation

A B

C

DE

“A picture is worth a 1000 words...”

Let A, B, C, D, E be natural persons, departments of universities, states, etc. • A is positively affected by B and affects B, C and E positively. • B is affected by A and C positively and affects D negatively and A positively. • C is positively affected by A, negatively affected by E, and affects B positively. • B and E negatively affect D. • E affects C and D negatively and is positively affected by A.

What’s going on?

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Information Visualisation

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Use Human Perceptual System

Pattern recognition

scan, recognize, remember

Graphical elements facilitate comparisons

length, shape, orientation, texture, color

Animation

time changes

The Visualisation Pipeline

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The Visualisation Pipeline

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Issues

How to provide efficient and effective access to large collections of data

to enable insight in the contents of such a collection.

using information visualisation techniques

Does it work better?

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[Van Wijk, 2006], [Spoerri, 2004]

CS1: Visualising a LOR

Study LOM [IEEE LOM, 2002]

start from Topic of LO [France et al., 1999], [Najjar, 2008a]

Study existing information visualisation techniques

Tree-map visualisation [Shneiderman and Johnson, 1991], [Shneiderman, 1996], [Lamping

and Rao, 1996], [Venn, 1880], [Kobsa, 2004], [Wang et al., 2006], [Rivadeneira and Bederson, 2003], [Bruls et al., 2000], etc.

Design & practical creation of an exploratory search application

Evaluation

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[IEEE LTSC LOM, 2002]

Learning Object Metadata

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[IEEE LTSC LOM, 2002]

Learning Object Metadata

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[IEEE LTSC LOM, 2002]

Learning Object Metadata

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Tree-map AlgorithmAriadne Classification

Exact Sciences

Informatics Physics

Human Sciences

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Tree-map AlgorithmAriadne Classification

Exact Sciences

Informatics Physics

Human Sciences

Ariadne Classification

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Tree-map AlgorithmAriadne Classification

Exact Sciences

Informatics Physics

Human Sciences

Ariadne Classification

Exact Sciences

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Tree-map AlgorithmAriadne Classification

Exact Sciences

Informatics Physics

Human Sciences

Ariadne Classification

Exact Sciences Human Sciences

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Tree-map AlgorithmAriadne Classification

Exact Sciences

Informatics Physics

Human Sciences

Ariadne Classification

Exact Sciences Human Sciences

Informatics

Physics

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Access to the Ariadne KPS

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Exact SciencesHuman

Sciences

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Access to the Ariadne KPS

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Access to the Ariadne KPS

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Access to the Ariadne KPS

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Overview first, Zoom and Filter, then Details on Demand“Visual Information-Seeking Mantra” [Shneiderman, 1996]

Access to the Ariadne KPS

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Overview first, Zoom and Filter, then Details on Demand“Visual Information-Seeking Mantra” [Shneiderman, 1996]

Access to the Ariadne KPS

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Overview first, Zoom and Filter, then Details on Demand“Visual Information-Seeking Mantra” [Shneiderman, 1996]

Access to the Ariadne KPS

Access to Ariadne KPS: Demo

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Access to Ariadne KPS: Demo

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Prototype Evaluation

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Prototype EvaluationStudy 1: Perception of 1 infovis expert user [Nielsen, 1992b]

7 user tasks to support Exploratory Search [Shneiderman, 1996]

overview, zoom, filter, details-on-demand, relate, history, extract

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Prototype EvaluationStudy 1: Perception of 1 infovis expert user [Nielsen, 1992b]

7 user tasks to support Exploratory Search [Shneiderman, 1996]

overview, zoom, filter, details-on-demand, relate, history, extract

Study 2: User Study [Rubin, 1994], [Nielsen, 1992a], [Likert, 1932], [Najjar et al., 2005],

10 users, 2 groups of 5, independent tasks

comparison traditional tool (SILO) and Prototype

Task time, Task Accuracy, Satisfaction (Likert Scale)

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Prototype EvaluationStudy 1: Perception of 1 infovis expert user [Nielsen, 1992b]

7 user tasks to support Exploratory Search [Shneiderman, 1996]

overview, zoom, filter, details-on-demand, relate, history, extract

Study 2: User Study [Rubin, 1994], [Nielsen, 1992a], [Likert, 1932], [Najjar et al., 2005],

10 users, 2 groups of 5, independent tasks

comparison traditional tool (SILO) and Prototype

Task time, Task Accuracy, Satisfaction (Likert Scale)

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Visual Information Seeking

Overview

Zoom

Filter

Details-on-Demand

Relate

History & Extract

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CS2: Eurosong 2009 Results

http://blob.creanode.com/blob/eu2009/

Visualisation for analysis16

CS3: EC-TEL Proceedings

Visualisation of concepts17

Music Industry

bron: http://en.wikipedia.org/wiki/Music_industry18

CS4: Visualising ReuseStudy ALOCOM [Verbert et al., 2005]

isPartOf/hasPart relations

Study existing information visualisation techniques

Node-link graph [Ware and Franck, 1994], [Becker et al., 1995], [Shneiderman, 1996]

Design & practical creation of an exploratory search application with advanced support to

Gain insight in actual reuse of the different components

Search & Find relevant components

Evaluation

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Reuse?

Repository filled with 48286 components from 653 presentations:

14113 slides5768 images198 tables26 diagrams27543 text fragments

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Reuse?

Repository filled with 48286 components from 653 presentations:

14113 slides5768 images198 tables26 diagrams27543 text fragments

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➡ Average reuse-value: 0.22

Reuse?

Repository filled with 48286 components from 653 presentations:

14113 slides5768 images198 tables26 diagrams27543 text fragments

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➡ Average reuse-value: 0.22

Access to ALOCOM: Demo

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Access to ALOCOM: Demo

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Access to ALOCOM: Demo

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Evaluation

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Evaluation

Expert review

4 expert users in TEL community

prototype = effective & efficient

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Evaluation

Expert review

4 expert users in TEL community

prototype = effective & efficient

Recommendations

calculate statistics, social network of authors, reuse through time, other dynamic controls, generalise target group

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CS5: http://www.liveplasma.com/

Visualisation for recommendation 23

CS6: Visualising Social BookmarksStudy social bookmarks & metadata

del.icio.us [delicious, 2008], CALIBRATE [CALIBRATE, 2008]

Investigate existing information visualisation techniques

Cluster map [Fluit et al., 2005], [Dodge and Kitchin, 2001], [Pampalk, 2006], [Heer and Boyd, 2005]...

Design & practical creation of an exploratory search application with advanced support to

provide understanding in bookmarks, tags, users and the relationships between them

Evaluation

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Clustermap Algorithm

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Clustermap Algorithm

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Clustermap Algorithm

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Clustermap Algorithm

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Clustermap Algorithm

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Clustermap Algorithm

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Access to del.icio.us: Demo

Selection Widget

Empty Visualisation:

“Start with what you know, then grow”

Filters

Results

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Access to del.icio.us: Demo

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Prototype Evaluation

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Prototype EvaluationStudy 1: Expert review by 4 experts

portal integration, zooming, learning curve, complexity, timeline integration

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Prototype EvaluationStudy 1: Expert review by 4 experts

portal integration, zooming, learning curve, complexity, timeline integration

Study 2: Subjective review by 10 end users to assess

effectiveness

efficiency

subjective acceptance

usability issues

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CS7: Many Eyes: Visualisation for the masses

http://manyeyes.alphaworks.ibm.com/manyeyes/visualizations/finding-new-music-artists-takes-time

Visualisation for recommendation 28

CS8: Visualising a Network of LORS

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CS8: Visualising a Network of LORS

Unlock the deep web of the learning repository networks that members of GLOBE maintain [Globe, 2008]

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CS8: Visualising a Network of LORS

Unlock the deep web of the learning repository networks that members of GLOBE maintain [Globe, 2008]

Timeline Visualisation of Search History

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Find Material: Demo

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Find Material: Demo

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Timeline Visualisation of History: Demo

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Timeline Visualisation of History: Demo

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CS9: Listening History

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http://www.leebyron.com/what/lastfm/example.jpg

CS10: Emotion in Lyrics

HAPPY ANGRY

SURPRISEFEAR

SADNESS DISGUSThttp://www.synesketch.krcadinac.com/

Integrated Karaoke Player with Synesketch

On-the-fly visualisation of lyrics during Song.

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Thriller, Michael Jackson

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Thriller, Michael Jackson

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Shiny Happy People, REM

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Shiny Happy People, REM

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Information Visualization Manifesto (1/2)

“The purpose is insight, not pictures” (Sheiderman)

“Form Follows Function”

“Start with a Question”

“Interactivity is Key”

“Cite your source”

http://www.visualcomplexity.com/vc/blog/?p=64436

Information Visualization Manifesto (2/2)

“The power of Narrative”

“Do not glorify Aesthetics”

“Look for Relevancy”

“Embrace Time”

“Aspire for Knowledge”

“Avoid gratuitous visualizations”

http://www.visualcomplexity.com/vc/blog/?p=64437

Pointers

http://wearecolorblind.com/articles/quick-tips/

http://visualizingmusic.com/

http://infosthetics.com/

http://www.visualcomplexity.com/vc/

http://bestario.org/research/remap

http://visualthinkmap.blogspot.com/

http://www.infovis.net/

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Libraries

http://wiki.okfn.org/OpenVisualisation

http://flare.prefuse.org/

http://iv.slis.indiana.edu/sw/

http://abeautifulwww.com/2008/09/08/20-useful-visualization-libraries/

etc.

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Further Readings

“Readings in Information Visualization: Using Vision to Think”, Card, S et al

“Show Me the Numbers”, Few, S.

“Beautiful Evidence”, Tufte, E.

“Information Visualization. Perception for design”, Ware, C.

etc.

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Thanks

Questions?

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