Part of my SIoT presentation at the CS department of UCLA on November 29th, 2012

1. University of Cagliari
Cagliari, Sardinia, Italy
www.unica.it
UCLA, November 29th, 2012
A presentation on
THE SOCIAL INTERNET
OF THINGS
by Luigi Atzori
University of Cagliari, Italy

2. Social Internet of Things (1/2)
University of Cagliari, Italy
 Totalnumber of humans in the world:
around 7 billions
 Expected number of objects: trillions
 How to find the right object?
 Among humans …
2
Social networks! Why not the same for objects?
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

3. Social Internet of Things (2/2)
University of Cagliari, Italy
 Advantages
 Navigability*
 Scalable
 Trustworthiness
*J. Kleinberg, “The small-world phenomenon:
an algorithmic perspective”
in Proc. of ACM Symposium
on Theory and Computing, 2000
Reason Humans Things
Become visible Increase popularity Publish information/services
Find resources Find old friends Find information/services
Obtain context information Get filtered information Get environment characteristics
Find new services/updated 3
Discover new resources Find new friends
information
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

4. University of Cagliari, Italy
SIoT - Types of Relationships
Parental object relationship
Co-location object
relationship and co-work
object relationship
Social object relationship
Ownership object
relationship 4
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

5. University of Cagliari, Italy
SIoT - Relational Models (1/4)
Communal sharing
Humans/Things
• Behaviors of objects with collective relevance
• Focus on the service offered by the entire swarm
5
*A. P. Fiske, “The four elementary forms of sociality: framework for a
unified theory of social relations,” Psychological review, vol. 99, 1992.
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

6. University of Cagliari, Italy
SIoT - Relational Models (2/4)
Equality matching
Humans/Things
Objects operate as equals and request/provide information
among them in the perspective of providing IoT services to
users while maintaining their individuality
6
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

7. University of Cagliari, Italy
SIoT - Relational Models (3/4)
Authority ranking
Humans/Things
Established between objects of different complexity and
hierarchical levels
•RFID reader and Tags, Bluetooth master and slave
7
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

8. University of Cagliari, Italy
SIoT - Relational Models (4/4)
Market pricing
Humans/Things
• Working together in the view of achieving mutual benefit
• Participation in this relationship only when it is worth
the while to do so 8
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

9. University of Cagliari, Italy
Your operator Free WiFi
I got the highest
network
Long line through
2 energy consumption
Better
second exit Via in the block
Maria’s
Roma route coverage
car Mauro’s house
3
1 Pavla’s 4
Mac
I discovered how to
connect to printer
192.167.131.60 Angela
Efisio’s car
I got a rare issue
5
… looking how
to fix it
In Rome the weather
Michele is unexpectedly cold
Mario is at “Il lido”
7 Luisa is at “Charlie” Disco
Giorgia is here 6 9
Laura
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

10. SIoT Components
University of Cagliari, Italy
Social Rela-
graph tionship
mngt
Service Social Service
Service
APIs presence ID Mngt disco-
APIs
Profiling very
Profiling Owner
control
Partici- Trust-
Relation Service
pation worthi-
control compo-
model ness
sition
mngt
Social Network Social Networks
for Humans* for Things
10
*D. M. Boyd and N. B. Ellison, “Social network sites: Definition, history, and scholarship,” Journal
of Computer-Mediated Communication, vol. 1, no. 13, 2007.
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

11. SIoT Architecture
21/09/2011
11
11
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

12. University of Cagliari, Italy
Probability distributions of the minimum path length between a pair of 12/
randomly selected objects in SIoT and random network cases 80
November 29th, 2012
The Social Internet of Things – Prof. Luigi Atzori

13. University of Cagliari
Cagliari, Sardinia, Italy
www.unica.it
QUESTIONS?
Luigi Atzori
l.atzori@diee.unica.it
The Social Internet of Things (SIoT)–When social networks
meet the Internet of Things: Concept, architecture and
network characterization, L Atzori, A Iera, G Morabito, M
Nitti, Computer Networks, 2012
SIoT: Giving a social structure to the internet of things, L
Atzori, A Iera, G Morabito, Communications Letters, IEEE
2011
Making things socialize in the Internet – Does it help our
lives?, L Atzori, A Iera, G Morabito, ITU-T Kaleidoscope, 2011
The internet of things: A survey, L Atzori, A Iera, G Morabito
Computer Networks, 2010
A Subjective Model for Trustworthiness Evaluation in the
Social Internet of Things, M Nitti, L Atzori, R Giru, A Iera, G
Morabito, IEEE PIMRC, IoT-CN workshop, 2012