2. Stuart Palmer (@s_palm )
Faculty of Science, Engineering & Built Env.
MIS771
Data visualisation
3. Professional engineer – Electronics
Always interested in data and visualisation
Now interest in big data and social media
Some ‘case studies’ of recent projects
Background
4. 2.5
3
3.5
4
4.5
1 2 5 6 17 18
Meanrating
SETU question
2003
(n=51, 17%)
2004
(n=73, 42%)
2005
(n=47, 32%)
2006
(n=32, 37%)
1 The teaching staff of this unit stimulated my interest in further learning.
2 The teaching staff of this unit motivated me to do my best work.
5 This unit was well taught.
6 I had a clear idea of what was expected me in this unit.
17 I would recommend this unit to other students.
18 The use of on-line technologies in this unit enhanced my learning experience.
5. Regression analysis with final unit mark as the
dependent variable found two significant
predictors:
Online discussion
Variable Coefficient Standard error Beta Significance
No. new posts (≤ 5) 3.05 0.47 0.50 p < 110-8
Weighted Average Mark 0.51 0.08 0.48 p < 310-8
Constant 28.17 5.50 - p < 310-6
27. Collected more than 50 data items for projects:
• funding requested/pledged;
• project success status;
• project interactions via the Pozible project website;
• Twitter data;
• Facebook data;
• YouTube data; and
• traditional media reporting
Research crowdfunding
28. 1. the average pledge amount;
2. the diameter of the Twitter network, as computed by the Gephi program;
3. the average directed path length of the Twitter network, as computed by the Gephi
program;
4. the average undirected path length of the Twitter network, as computed by the Gephi
program;
5. the Twitter network Erdős number for project principal, as computed by the Gephi
program;
6. the total page view count for the Pozible project website;
7. the total unique page view count for the Pozible project website; and
8. the number of social media shares from the Pozible project website
Research crowdfunding
29. 1. the average pledge amount;
2. the diameter of the Twitter network, as computed by the Gephi program;
3. the average directed path length of the Twitter network, as computed by the Gephi
program;
4. the average undirected path length of the Twitter network, as computed by the Gephi
program;
5. the Twitter network Erdős number for project principal, as computed by the Gephi
program;
6. the total page view count for the Pozible project website;
7. the total unique page view count for the Pozible project website; and
8. the number of social media shares from the Pozible project website
Research crowdfunding
30. • Maximise the reach (path length) of their Twitter network communications
related to the project. This is not about sending lots of Tweets per se, but
extending the sequence of Retweets and other re-broadcasts about the
project to new/unique users/eyeballs; and
• Drive eyeballs to the project Pozible project website AND encourage those
viewers to share the project website. All project-related communication
should contain a link to the Pozible project website. The project blurb on
the Pozible project website should ask readers to hot the ‘share’ button(s).
Research crowdfunding
34. Accounts are nodes
Tweets from account 1…
…to/about account 2…
…are edges
Direction is clockwise
Have to handle undirected tweets
Network visualisation
Account 1
(node)
Account 2
(node)
Direction of Tweet
(clockwise edge)
35. Basic network layout algorithms are ‘force
directed’
Nodes repel each other like electric charges
Edges pull nodes together like springs
Network iterates until equilibrium reached
Network visualisation
39. Comet ISON – daily med.
0
100
200
300
400
500
600
700
1 2 3 4 5 6 7 8 9 101112131415161718192021222324252627282930313233343536373839
Mediandailytweetcount
Week number (commencing 15 Apr 2013 - 6 Jan 2014)
A
B
C
D
E
F
G
54. A B
C D
F GE
2.4
3
3.6
4.2
4.8
3.86 3.96 4.06
SETUitem6
SETU item 1
55. “Students will study the picture-book…”
“…books are discussed in relation to…”
“…option of writing a picture-book text…”
“…access some of the important print and on-
line national and international literature…”
“…the writing of a literature review…”
High SETU 6 units
