Internet of Things allows the interconnection of smart objects, such as mobile robots, wireless sensors, etc. , and of human beings, by using various communication protocols and by developing a dynamic multi-modal heterogeneous network. The Internet of Things is expected to be overpopulated by a very huge number of objects, with intensive interactions, heterogeneous communications and millions of services. Consequently, scalability issues will arise from the search of the right object that can provide the desired service. A new paradigm known as Social Internet of Things has been introduced and proposes the integration of social networking concepts into the Internet of Things. The underneath idea is that every object can look for the desired service using its friendships, in a distributed manner. The cluster between Internet of Things (IoT) and social networks (SNs) enables the connection of

1. Luigi Atzori*, Antonio Iera**, Giacomo Morabito***, and Michele Nitti: The Social Internet of Things (SIoT) - When Social Networks meet the Internet of Things:Concept: Architecture and Network CharacterizationI: Paper submitted and published in Computer Networks, Volume 56, Issue 16,14 November 2012, Pages 3594–3608.
2. Michele Nitti, Roberto Girau, and Luigi Atzori, SeniorMember,IEEE Trustworthiness Management in the Social Internet of Things :IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING, VOL. 26, NO. 5, MAY 2014
3. Antonio M. Ortiz, Member, IEEE, Dina Hussein, Soochang Park, Member, IEEE, Son N. Han, Student Member, IEEE, and Noel Crespi, Senior Member, IEEE. Cluster Between Internet of Things and Social Networks: Review and ResearchChallenges : IEEE INTERNET OF THINGS JOURNAL, VOL. 1, NO. 3, JUNE2014
4. Kazi Masudul Alam_, Mukesh Sainiy, and Abdulmotaleb El Saddik; Multimedia Computing Research Laboratory, University of Ottawa, Ottawa, ON, Canada; Division of Engineering, New York University, Abu Dhabi, UAETowards Social Internet of Vehicles: Concept, Architecture and Applications: DOI10. 1109/ACCESS. 2015. 2416657, IEEE Access
5. Michele Nitti*, Luigi Atzori*, Irena Pletikosa Cvijikj; University of Cagliari, Italy, michele. nitti, l. atzori@diee. unica. it ETH Zurich, Switzerland, ipletikosa@ethz. chFriendship selection in the Social Internet of Things: challenges and possible strategies; DOI10. 1109/JIOT. 2014. 2384734, IEEE Internet of Things Journal
6. Google Images on Internet of Things and Social Internet ofThings.
7. Wikipedia on Social Internet of Things and Internet ofThings.
8. L. Atzori, A. Iera, and G. Morabito, "The Internet of things: A survey," Comput. Netw. , vol. 54, no. 15, pp. 2787–2805, 2010.
9. P. Mendes, "Social-driven Internet of connected objects," in Proc. Interconn. Smart Objects with the Internet Workshop, Lisbon, Portugal, 2011.
10. L. Ding, P. Shi, and B. Liu, "The clustering of Internet, Internet of things and social network," in Proc. 3rd Int. Symp. KAM, Wuhan, China, 2010.
11. D. Guinard, M. Fischer, and V. Trifa, "Sharing using social networks in a composable web of things," in Proc. 8th IEEE Int. Conf. PERCOM Workshops, Mannheim, Germany,2010.
12. E. A. K. amd, N. D. Tselikas, and A. C. Boucouvalas, "Integrating RFIDs and smart objects into a unified Internet of things architecture," Adv. Internet Things, vol. 1, no. 1, pp. 5–12, 2011.
13. L. Atzori, A. Iera, and G. Morabito, "SIoT: Giving a social structure to the Internet of things," IEEE Commun. Lett. , vol. 15, no. 11, pp. 1193–1195, Nov. 2011.
14. J. Surowiecki, The Wisdom of Crowds, New York, NY, USA: Doubleday, 2004.
15. R. Roman, P. Najera, and J. Lopez, "Securing the Internet of things," Computer, vol. 44, no. 9, pp. 51–58, 2011.
16. M. Nitti, R. Girau, L. Atzori, A. Iera, and G. Morabito, "A subjective model for trustworthiness evaluation in the social Internet of things," in Proc. IEEE 23rd Int. Symp. PIMRC, Sydney, NSW, Australia, 2012, pp. 18–23.
17. L. Atzori, A. Iera, G. Morabito, and M. Nitti, "The social Internet of things (SIoT)–When social networks meet the Internet of things: Concept, architecture and network characterization," Comput. Netw. , vol. 56, no. 16, pp. 3594–3608, Nov. 2012.
18. D. Chen, G. Chang, D. Sun, J. Li, J. Jia, and X. Wang, "TRM-IoT: A trust management model based on fuzzy reputation for Internet of things. " Comput. Sci. Inf. Syst. , vol. 8, no. 4, pp. 1207–1228, 2011.
19. R. Sherwood, S. Lee, and B. Bhattacharjee, "Cooperative peer groups in NICE," Comput. Netw. , vol. 50, no. 4, pp. 523–544, 2006.
20. E. Adar and B. A. Huberman, "Free riding on Gnutella,"First Monday, vol. 5, no. 10, 2000.
21. M. Feldman, K. Lai, and J. Chuang, "Quantifying disincentives in peer-to-peer networks," in Proc. 1st Workshop Economics of Peer-toPeer Systems, Berkeley, CA, USA, 2003.
22. R. Jurca and B. Faltings, "An incentive compatible reputation mechanism," in Proc. 2nd Int. joint Conf. Autonomous Agents and Multiagent Systems, 2003, pp. 1026–1027.
23. S. Marti and H. Garcia-Molina, "Identity crisis: Anonymity vs. reputation in P2P systems," in Proc. 3rd Int. Conf. Peer-to-Peer Computing, Linköping, Sweden, 2003, p. 134.
24. R. Zhou, K. Hwang, and M. Cai, "Gossiptrust for fast reputation aggregation in peer-to-peer networks," IEEE Trans. Knowl. Data Eng. , vol. 20, no. 9, pp. 1282–1295, Sept. 2008.

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