Workshop on Online Social
December 7, 2007.
Structure and modelling of large-scale
Jukka-Pekka Onnela (University
from phone to e-mails logs, provide detailed records of human communication
patterns, offering novel avenues to map and explore the structure of social
and communication networks. We have studied the local and global structure of
a society-wide network derived from the calls of over seven million mobile
phone users. I will highlight some of our key findings, including our result
on information diffusion. I will also talk about a simple network model
motivated by the empirical study. In addition to reproducing many of the key
features of large social networks, the model enables us to explore the role
of interaction strengths in the emergence of communities in social systems.