Towards Robust and Scalable Peer-to-Peer Social Networks

Authors: Alexandra Olteanu and Guillaume Pierre.
Source: Proceedings of the 5th Workshop on Social Network Systems (SNS) , Bern, Switzerland, April 2012.


Peer-to-peer Online Social Networks (OSNs) promise to combine the functionalities of centralized OSNs with the good properties of peer-to-peer systems. However, in time, the number of connections between users of OSNs grows super-linearly in the number of users: the average node degree increases with the overall system size. In large-scale settings, mapping each friendship relation into an overlay link will thus overwhelm popular nodes. We propose simple techniques to build and maintain the peer-to-peer OSN overlay while significantly shifting node degrees towards lower ranges. We evaluate our algorithms using real large-scale datasets, and show that they can disseminate information efficiently while controlling node degrees, even in the presence of high churn.


Bibtex Entry

  author = 	 {Alexandra Olteanu and Guillaume Pierre},
  title = 	 {Towards Robust and Scalable Peer-to-Peer Social Networks},
  booktitle = 	 {Proceedings of the 5th Workshop on Social Network
                  Systems (SNS)},
  year = 	 {2012},
  month = 	 apr