Upload
erik-duval
View
287
Download
6
Embed Size (px)
Citation preview
Informatie-visualisatie
les 3, 23 feb 2015
Erik DuvalDept. Computerwetenschappen, KULeuvenhttp://erikduval.wordpress.com & @ErikDuval
1
voorbije week…
2
3
tegen volgende week
• publiek, data, verhaal
• data: ruwe feasibility voldoende voor nu
• visuele alternatieven
• 15” per groep volgende week
4
slide van vorige week
?@ErikDuval
h.p://erikduval.wordpress.com5
Infovis Design
6
B. McDonnel and N. Elmqvist. Towards utilizing gpus in information visualization: A model and implementation of image-space operations. Visualization and Computer Graphics, IEEE Transactions on, 15(6):1105–1112, 2009. http://www.infovis-wiki.net/index.php/Visualization_Pipeline
7
Data
- questionswhere, when, how often, …
- audiencedomain & visualisation expertise, …
- structuretime, hierarchy, network, 1D, 2D, nD, …
8
S. Stevens. On the theory of scales of measurement. Science, 103(2684), 1946.
Visual mapping
10
Size
11
http
://w
ww.
info
rmat
ioni
sbea
utifu
l.net
/200
9/vi
sual
isin
g-th
e-gu
ardi
an-d
atab
log/
Col
or
12http
://hc
il2.c
s.um
d.ed
u/trs
/99-
16/9
9-16
.htm
l
13
J. Mackinlay. Automating the design of graphical presentations of relational information. ACM Transactions On Graphics, 5(2):110–141, 1986.
14
J. Mackinlay. Automating the design of graphical presentations of relational information. ACM Transactions On Graphics, 5(2):110–141, 1986.
http://www.ted.com/talks/hans_rosling_shows_the_best_stats_you_ve_ever_seen.html
Gestalt principles
Law of ProximityThe closer objects are to each other, the more likely they are to be perceived as a group (Ehrenstein, 2004)
Law of SymmetryObjects must be balanced or symmetrical to be seen as complete or whole (Chang, 2002).
16http://www.slideshare.net/chelsc/gestalt-laws-and-design-presentationhttp://en.wikipedia.org/wiki/Gestalt_psychology#Gestalt_laws_of_grouping
Gestalt principles
Law of SimilarityObjects that are similar, with like components or attributes are more likely to be organised together (Schamber, 1986).
Law of Common FateObjects with a common movement, that move in the same direction, at the same pace , at the same time are organised as a group (Ehrenstein, 2004).
17
Gestalt principles
Law of ContinuationObjects will be grouped as a whole if they are co-linear, or follow a direction (Chang, 2002; Lyons, 2001).
Law of IsomorphismIs similarity that can be behavioural or perceptual, and can be a response based on the viewers previous experiences (Luchins & Luchins, 1999; Chang, 2002). This law is the basis for symbolism (Schamber, 1986).
18
Offer precise controls for sharing on the Internet... Users should navigate through 50 settings with more than 170 options
Example Facebook privacy statement
Questions?
How did its complexity change over time? How does its length compare to privacy statementsof other tools?
19
How did its complexity change over time?
http://www.nytimes.com/interactive/2010/05/12/business/facebook-privacy.html20
How does its length compare to privacy statementsof other tools?
http://www.nytimes.com/interactive/2010/05/12/business/facebook-privacy.html21
?@ErikDuval
h.p://erikduval.wordpress.com22
tegen volgende week
• slides posten op blog
• blog post over wat je geleerd hebt
• uit feedback, voorstellen andere groepen
• geïllustreerd scenario
• concreet, concreet, concreet
• 15” per groep volgende week
• eventueel data met bestaande tools visualiseren23
?@ErikDuval
h.p://erikduval.wordpress.com24