1. Big data & social data mining
Fosca Giannotti
KDDLAB http://kdd.isti.cnr.it
Università di Pisa e ISTI-CNR

2. Big data “proxies” of social life
Shopping patterns & lifestyle Relationships & social ties
Movements
Desires, opinions, sentiments

10. 6 marzo 2013 Analisi di Reti Sociali. 10

11. Big data & new
questions to ask

12. Google Flu Trends
Nature 457, 1012-1014 (2009)

13. Spread of Happiness
James H. Fowler, Nicholas A. Christakis.
Dynamic Spread of Happiness in a Large Social Network:
Longitudinal Analysis Over 20 Years in the Framingham Heart Study
British Medical Journal 337 (4 December 2008)

16. BIG DATA
as a proxy
of human mobility

17. Lucca
Marina di Pisa/Tirrenia
A12 Sud
Cascina

19. Discovering individual systematic movements
Work-Home
Home-Work

20. Using the profiles to classify the incoming flows

21. Mobility profile matching
User A (as driver) Spatio Temporal User B (as passenger)
Routing matches
Mobility Mobility
Profile Profile
A can serve most of the routines of B  the match is suggested.

22. Understanding car pooling impact
Matching Network Community
?
=
Suggestion
=
Actual Network

23. GSM indicators:
Identification of user profiles
Analyze individual call habits to
recognize profiles
–Resident
–Commuters
–Visitors/Tourists

24. Call Habit Profile Construction
Nr. Of elements in the
profile
Week: working days &
Time
weekend slots
0:00-7:59
8:00-18:59
19:00-23:59
Users’ call
habit
profile

25. Residents
Resident profile

26. Commuters
Resident profile
Commuter profile

27. Visitors
Resident profile
Commuter profile
Visitor profile
Night visitors
Daylight visitors

28. User profile quantification
Resident profile
Commuter profile
Visitor profile
Among the unclassified there are other
interesting profiles:
- The occasional visitors;
- The «night visitors».

29. Mobility atlas of many cities

30. Mobility Atlas of a town

32. Discover the borders of mobility

44. Social mining for simulation
• How can we inject realism into, e.g., an
agent-based simulator for mobility?
• FP7 project DATASIM – A Data Science
for the Era of Electric Vehicles
http://www.uhasselt.be/datasim

45. Mirco Nanni, Roberto Trasarti, et al.:
MP4-A Project: Mobility Planning for Africa. “Data for Development” Orange challenge, 2013

46. Mirco Nanni, Roberto Trasarti, et al.:
MP4-A Project: Mobility Planning for Africa. “Data for Development” Orange challenge, 2013

48. Social Data Mining

49. Digital humanism
• The ICTs have revolutionized society
• Society is now revolutionizing the ICTs
and scientific research
• Ultimately, the ICTs and big data have
brought humanity at the center of
scientific investigation under a new light

50. 7 Billion – October 2011

52. Data scientist,
the sexiest job of 21 century
st
• … a new kind of
professional has emerged,
the data scientist, who
combines the skills of
software programmer,
statistician and
storyteller/artist to
extract the nuggets of gold
hidden under mountains of
data.

53. Knowledge Discovery and Data Mining
Laboratory
Caterina D’angelo Claudio Schifani Chiara Falchi Zehui Qu Barbara Furletti, Andrea Romei, Sergio Barsocchi