Primary role identification in dynamic social networks

Social networks often forms very complex structures that additionally change over time. Description of actors´ roles in such structures requires to take into account this dynamics reflecting behavioral characteristics of the actors. A role can be defined as a sequence of different types of activities. Various types of activities are modeled by pattern subgraphs, whereas sequences of these activities are modeled by sequence diagrams. For such defined roles, a role identification procedure is proposed assigning to each actor his or her primary role played in a dynamic social network.