Analysis of Email Ego Networks An exploratory study of ego networks in an email network

ABSTRACT For this project, we look at network properties of ego networks in a email network from a research lab. Due to the nature of the email network, most of the ego networks have a star-like structure. After the removal of the ego, there is one large connected component that roughly corresponds to email addresses within the lab, and isolated nodes corresponding to the external addresses. We look at the effect of tie strength on the connectedness of the ego network. We also try to group nodes in the ego network using Girvan-Newman and by tie strength. We found that using tie strength gives more clearly defined clusters.