Understanding social dynamics that govern human phenomena, such as communications
and social relationships is a major problem in current computational social sciences. In …

Online Social Networks (OSN) during last years acquired a huge and increasing popularity
as one of the most important emerging Web phenomena, deeply modifying the behavior of …

The importance of modeling and analyzing Social Networks is a consequence of the
success of Online Social Networks during last years. Several models of networks have been …

The emergence and popularization of online social networks suddenly made available a
large amount of data from social organization, interaction and human behavior. All this …

Research on group cohesion often relies on individual perceptions, which may not reflect
the actual social structure of groups. This study draws on social network theory to examine …

Social media, such as Twitter and Facebook, have become important venues for business
and individuals. Social interactions between actors result in the formation of meso‑scale …

Social network analysis has emerged as a set of methods for the analysis of social structures
and uncovering the patterning of interactions among the entities. In the past, social network …

This thesis deals with the analysis of community structures in social networks and their
temporal dynamics. For this, methods to detect communities in social networks are proposed …

We study the structure of the social graph of active Facebook users, the largest social
network ever analyzed. We compute numerous features of the graph including the number …

Social network systems are significant scaffolds for political, economic, and sociocultural
change. This is in part due to the widespread availability of sophisticated network …