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R course were organized by the Research Center in the topic of static and dynamic analysis of social networks

R course were organized by the Research Center in the topic of static and dynamic analysis of social networks

An introduction course had taken place Between 3rd and  5th of December  the topic of the static and dynamic analysis of social networks were led by András Vörös, research assistant at Scientific Section of Network Research of  the Institute of Sociology and graduated Phd student  at Oxford University (Nuffield College). András is an expert user of the network specified package RSiena  in R. He also contribute to the edition of the RSieana user guide book with his doctoral supervisor Tom Snijders.

Kinga Varga: Optimisation of the clustering of signed graphs

Signed graphs contain different types of relations towards actors in SNA. The assignment of a positive or negative relationship finds its roots in structural balance theory. The mathematical formalization of this concept was later added by Harary (1953) and Cartwright ( 1956, 1979). The generalisation specify subgroups with similar characteristics related to their links to other actors in the network. Subdividing actors into prespecified homogeneous blocks provides for the analysis of such network data related to internal and external characteristics.