I received my PhD in Theoretical Physics in 2000 at the Department of Physics of the University of Bielefeld, Germany, working on lattice gauge theories, percolation and phenomenology of heavy-ion collisions. I switched to complexity science in 2004, and from 2005 till 2007 I have been postdoctoral researcher at the School of Informatics and Computing of Indiana University, working in the group of Alessandro Vespignani. From 2007 till 2011 I have been at ISI Foundation in Turin, Italy, first as research scientist then as a scientific leader. In 2011 I became Associate Professor in Complex Systems at the School of Science of Aalto University , Finland.
I am currently full professor in the School of Informatics and Computing at Indiana University.
My research areas are network science, computational social science and science of science. Some fun things to do are the detection of community structure in networks, the analysis and modelling of social and information networks, citation patterns, research evaluation, experiments on social dynamics.