Network Science: From structure to control

13 04/2015

Monday, 13 Apr. 2015, 17:30 - 18:30

Presenter: Albert-László Barabási; Center of Complex Networks Research, Northeastern University and Division of Network Medicine, Harvard University, USA
Host: WPK
Where: TU Wien-Freihaus, Hörsaal 5, 2. Stock, grüner Bereich; 1040 Wien, Wiedner Hauptstraße 8-10

Abstract: Systems as diverse as the world wide web, Internet or the cell are described by highly interconnected networks with amazingly complex topology. Recent studies indicate that these networks are the result of self-organizing processes governed by simple but generic laws, resulting in architectural features that makes them much more similar to each other than one would have expected by chance. I will discuss the order characterizing our interconnected world and its implications to network robustness, and control. Indeed, while control theory offers mathematical tools to steer engineered and natural systems towards a desired state, we lack a framework to control complex self-organized systems. I will discuss a recently developed analytical framework to study the controllability of an arbitrary complex directed network, identifying the set of driver nodes whose time-dependent control can guide the system’s dynamics.