In questo mondo di dati, aperti In this world of - open - data Dans ce mondo de données, ouvertes Ambasciata del Canada, 10 luglio 2013

1. Big Data and Social Data
Mining
Fosca Giannotti KDDLAB
http://kdd.isti.cnr.it
Università di Pisa & ISTI-CNR, Italy
BIG Data
10 July 2013

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

7. GPS: detailed movements within an
area

8. Social Networks: goal of the
movement

10. 23 luglio 2013 Analisi di Reti Sociali.
Aprile-Maggio 2011
10

11. Big data & new
questions to ask

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

14. where-is-the-happiest-city-in-the-usa?

16. Social mining is about
• discovering patterns and models of human
behaviour across the various social
dimensions that have big data "proxies"
nowadays :
–desires and opinions,
–relationships and social ties,
– life-styles
– mobility

17. BIG DATA
as a proxy
of human mobility

18. A12 Sud
Cascina
Marina di Pisa/Tirrenia
Lucca
Understanding city access paths

19. Understanding city access paths

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

22. Using the profiles to classify the incoming flows

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

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

25. Mobility Atlas of a town

27. Analyze individual call habits from
GSM data to recognize profiles
–Resident
–Commuters
–Visitors/Tourists

28. Call Habit Profile Construction
Users’ call
habit
profile
Week: working days &
weekend
0:00-7:59
8:00-18:59
19:00-23:59

29. Resident profile classification
Resident profile

30. Commuter profile classification
Resident profile
Commuter profile

31. Visitor profile classification
Resident profile
Commuter profile
Visitor profile
Night visitors
Daylight visitors

32. Urban Sociometer
Resident profile
Commuter profile
Visitor profile
Among the unclassified there are other
interesting profiles:
- The occasional visitors;
- The «night visitors».

33. Discover the borders of mobility
Salvatore Rinzivillo, Mainardi, Pezzoni, Michele Coscia, Dino Pedreschi, Fosca Giannotti:
Discovering the Geographical Borders of Human Mobility. KI 26(3): 253-260 (2012)

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

49. Data scientist,
the sexiest job of 21st century
• … 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.

50. Knowledge Discovery & Data Mining Laboratory | kdd.isti.cnr.it