Internet e-mailing networks are such social networks that grow up spontaneously and are in constantly changing. Social network members exert persistent influence on the other members of the network with their topics, opinions and activity. Therefore such a complex interaction based network will be generated which is very similar to the gravitational systems. In the course of the research dynamic modelling were used which were specifically developed to visualise complex networks of large dimension and which map the networks due to the interaction of their elements. In the research the dynamic changes of a post gradual university e-mailing network were examined from quantitative and topological aspects in a seven years period using network theory methods. It was analysed how hyperactive correspondents' behaviour affected the quantitative parameters and topological features of this e-mailing network as a social network. On the basis of the results of research there is a demonstrable correlation between the activity of the hyperactive correspondents and the changes of the social network in the examined e-mailing network.
['Gyozo Attila Szilagyi', 'Alexandra Vécsey']
Analysis of the topological changes of an e-mailing network using network-theory methods