1. Nitti, M., Atzori, L., Cvijikj, I.P.: Friendship selection in the social internet of things: challenges and possible strategies. IEEE Internet Things J. 2(3), 240–247 (2014)
2. Sarma, S., Brock, D., Ashton, K.: The networked physical world: proposals for the next generation of computing commerce, and automatic identification. AutoID Centre White Paper (1999)
3. Hequan, W.: Things will eventually perceive the society. Machine Design and Manufacturing Engineering (2012)
4. Atzori, L., Iera, A., Morabito, G.: The Social Internet of Things (SIoT)-when social networks meet the internet of things: concept, architecture and network characterization. Comput. Works 56, 3594–3608 (2012)
5. Lecture Notes in Computer Science;J Hu,2016