200 citations · 635 across the 18 of their papers we have counts for
6 papers · 1 filter
Digraphs are different: Why directionality matters in complex systems
Samuel Johnson
Many networks describing complex systems are directed: the interactions between elements are not symmetric. Recent work has shown that these networks can display properties such as…
Resilience or Robustness: Identifying Topological Vulnerabilities in Rail Networks
Alessio Pagani, Guillem Mosquera, Aseel Alturki +5
Many critical infrastructure systems have network structure and are under stress. Despite their national importance, the complexity of large-scale transport networks means we do no…
Gang Confrontation: The case of Medellin (Colombia)
Juan D. Botero, Weisi Guo, Guillem Mosquera +4
Protracted conflict is one of the largest human challenges that have persistently undermined economic and social progress. In recent years, there has been increased emphasis on usi…
Relaxation dynamics of maximally clustered networks
Janis Klaise, Samuel Johnson
We study the relaxation dynamics of fully clustered networks (maximal number of triangles) to an unclustered state under two different edge dynamics---the double-edge swap, corresp…
From neurons to epidemics: How trophic coherence affects spreading processes
Janis Klaise, Samuel Johnson
Trophic coherence, a measure of the extent to which the nodes of a directed network are organised in levels, has recently been shown to be closely related to many structural and dy…
Looplessness in networks is linked to trophic coherence
Samuel Johnson, Nick S. Jones
Many natural, complex systems are remarkably stable thanks to an absence of feedback acting on their elements. When described as networks, these exhibit few or no cycles, and assoc…