Hierarchical organisation in complex networks

Rövid cím: 
Hierarchical organisation in complex networks
2017. 02. 10. 10:15
BME Fizikai Intézet, Elméleti Fizika Tanszék, Budafoki út 8. F-épület, III lépcsőház, szemináriumi szoba
Gergely Palla

Hierarchical organisation is a ubiquitous feature of a large variety of systems studied in natural- and social sciences. One of the related key problems is quantifying the importance of hierarchical organisation in the structure of the network representing the interactions or connections between the fundamental units of the studied system. The first part of the talk shall provide a brief overview of a few different hierarchy measures aimed at grasping the signs of hierarchy in a network in a quantitative way. As an interesting application, the second part of the talk will focus on how can we apply the concept of hierarchy and hierarchy measures for providing a novel type of ranking between scientific journals.