Status presentation about the project for the Capita Selecta course on CHI at the KULeuven.

1. Where to go with your
subject?!
Anne Everars, Greet Robijns en Ward Cools
dinsdag 16 april 13

2. What to visualize?
Difference between LAK and EDM data
Localization of the subjects
Differences between participating
associations (number of written papers)
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3. Why this?
Interesting to know where people are
writing about a certain subject
LAK and EDM have a comparable research
domain
➠ visualize the differences
Quantity is also visualized, to see where a
lot of research is done about a subject
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4. How did we do this?
Beginning
Simple map with marker
for the associations
map with EDM versus
LAK data
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5. How did we do this?
Rapid prototyping
Paper prototype
First digital version
... more iterations still to come
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6. So many choices ...
Conflict:
Visualize the quantity of papers
e.g. in the US more publications than in
Guatemala
Visualize distribution between LAK and
EDM
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7. Some many choices ...
Continue working with bar charts
Markers are too close together
Bar can get really long
Not clear to which association it belongs
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8. So many choices ...
Pie chart
Located at the center
of the association
Unreadable when
zoomed out or many
associations close together
Hard to compare associations (number of
papers not clear)
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9. So many choices ...
Pop-ups
Clear to which
association it belongs
Map not flooded with
- potentially unwanted -
information
Small markers on the
map itself
Hover over association
to see the name
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10. Pop-ups?
Visualize information about one association
Visualize differences between two
associations
2 options were evaluated by use of paper
prototype
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11. Paper prototype
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12. Paper prototype
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13. Paper prototype
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14. Paper prototype
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15. Paper prototype
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16. Paper prototype
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17. Paper prototype
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18. Paper prototype
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19. Paper prototype
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20. Paper prototype
the compare issue
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21. Evaluation
Some remarks during user test
‘Compare’ and ‘Search’ button are placed
too close together.
Dots in the map might be mistaken for
capital cities
Axis should be calibrated on the pop-ups
Can you only push the ‘Compare’ button if
(more than) one association is selected
Compare more than two associations?
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22. Evaluation
SUS-questionnaire
➠ express the quality with a number
➠ get a view of the usability of the
application
SUS-score = 74
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23. Some changes ...
Scale : no continuous colors, but discrete
➠ beter visualize the differences
Location of search and compare button are
(hopefully) better
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24. DEMO
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25. What we learned
Some associations have a strong preference
for one of the conferences
‘learning’ gives a divided image
Learning analytics and machine learning
both concern learning
Visualize both conferences
Social network analysis
mainly LAK
only popular in certain countries
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26. What we learned
Important to get an idea about the data
Important to get an idea about what what
people want to know about the data
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27. Teamwork?
First meeting to look at what we wanted and
how we wanted to do visualize it
Divided the tasks
Everyone did their part
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28. Technical issues?
Clash between markers and pop-ups
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29. What’s next?
Evaluation digital prototype
Mark the axises
...
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30. dinsdag 16 april 13
?
Questions?