BS Universitat de Barcelona PhD Universitat Rovira i Virgili Fulbright Sholarship (2005-2006) Complex systems and complex networks; systems biology

The number of organisms whose complete genome has been sequenced has grown exponentially in the last few years. Unfortunately, our understanding of life processes has not grown proportionally. At a totally different scale, the scale of macro socio-economic systems, the increase in computational capabilities is also enabling us to acquire and process unprecedented amounts of information. As for processes at the molecular scale, however, our predictive power has not increased at the same pace.

A major challenge when dealing with systems such as a cell or a socio-economic system is that they are "complex." In complex systems, individual components interact with each other, usually in nonlinear ways, giving rise to complex networks of interactions that are neither totally regular nor totally random. Partly because of the interactions themselves and partly because of the interaction topology, complex systems cannot be properly understood by just analyzing their constituent parts My research is devoted to the study of complex systems and, particularly, to the structure of complex networks and the interplay between network structure and dynamics.

Recent Publications

Sales-Pardo, Guimera, Moreira, Amaral. Extracting the hierarchical organization of complex systems. Proc. Natl. Acad. Sci. U. S. A. 104, 15224-15229 (2007)

Guimerà, Sales-Pardo, Amaral. A network-based method for target selection in metabolic networks. Bioinformatics 23, 1616-1622 (2007).

Guimerà, Sales-Pardo, Amaral. Classes of complex networks defined by role-to-role connectivity profiles. Nature Physics 3, 63-69 (2007).

Guimerà, Sales-Pardo, Amaral. Module identification in bipartite and directed networks. Physical Review E 76, 036102 (2007).

Guimerà, Amaral. Functional cartography of complex metabolic networks. Nature 433, 895-900 (2005).

Guimerà, Uzzi, Spiro, Amaral. Team assembly mechanisms determine collaboration network structure and team performance. Science 308, 697-702 (2005).

Guimerà, Mossa, Turtschi, Amaral. The worldwide air transportation network: anomalous centrality, community structure, and cities' global roles. Proceedings of the National Academy of Sciences 102, 7794-7799 (2005).

Prof. Roger Guimera
Department of Chemical and Biological Engineering
Northwestern University
2145 Sheridan Road
Evanston, IL 60208-3120

tel: 847/491-7231
fax: 847/491-3728
Email Dr. Guimera