Category: Publications
Community detection on directed networks
In a new article published in PNAS, Alex Cionca revisits the concept of modularity on directed graphs, extending it to bimodularity that recognizes sending and associated receiving communities. An elegant SVD-based algorithm allows to recover these “bicommunities” in an efficient and complete way. Big congrats to Alex and Michael Chan for pulling this off! A. (…)
Let there be phase
In a recent paper entitled “Hilbert Transform on Graphs: Let There Be Phase” published in IEEE Signal Processing Letters, Michael Chan proposes a new twist to enable the Hilbert transform for graphs. The scheme provides a promising way to analyze signals on domains that can be characterized by directed graphs. The graph analytical signal reveals (…)
Spatiotemporal mosaic of brain states
In a new commentary piece published in Imaging Neuroscience, Dimitri and Raphaël discuss the relevance, challenges, and most promising avenues of dynamic functional connectivity approaches.