Article by IMT research team featured on the cover of Physical Review E

The work of two members of the NETWORKS Research Unit - Professor Guido Caldarelli and Post-Doctoral Fellow Juan Ignacio Perotti - was featured as one of the "Kaleidoscope" images on the cover of Physical Review E. This peer-reviewed journal is the most important in the field of statistical physics and nonlinear dynamics. The article, "Hierarchical mutual information for the comparison of hierarchical community structures in complex networks", introduces so-called 'hierarchical mutual information', which is a generalization of the traditional mutual information and makes it possible to compare hierarchical partitions and hierarchical community structures. The experiments performed in the study illustrate some of the practical applications of the hierarchical mutual information, namely the comparison of different community detection methods and the study of the consistency, robustness, and temporal evolution of the hierarchical modular structure of networks. Translated into more practical terms, the study allows for the comparative analysis of various algorithms for the identification of communities within a complex network. An example of this may be the comparative analysis of the production structure of diverse countries. To access the article, and to view the "Kaleidoscope" image from the article that was selected for the cover, please follow the link below.