Researchers have collected Twitter data to study a wide range of topics. This growing body
of literature, however, has not yet been reviewed systematically to synthesize Twitter-related …

In recent years the research community has accumulated overwhelming evidence for the
emergence of complex and heterogeneous connectivity patterns in a wide range of …

Abstract Models of epidemic spreading on complex networks have attracted great attention
among researchers in physics, mathematics, and epidemiology due to their success in …

Identifying a set of influential spreaders in complex networks plays a crucial role in effective
information spreading. A simple strategy is to choose top-r ranked nodes as spreaders …

We survey the concept of assortativity, starting from its original definition by Newman in
2002. Degree assortativity is the most commonly used form of assortativity. Degree …

The time variation of contacts in a networked system may fundamentally alter the properties
of spreading processes and affect the condition for large-scale propagation, as encoded in …

Global food trade is crucial for food security and availability. Trade is typically optimized to
promote efficiency, whereas resilience is increasingly being recognized as another …

With the prevalence of COVID-19, the modeling of epidemic propagation and its analyses
have played a significant role in controlling epidemics. However, individual behaviors, in …

This letter considers the problem of estimating all the eigenvalues and eigenvectors of an
irreducible matrix, corresponding to a strongly connected digraph, in the absence of …

In many real, directed networks, the strongly connected component of nodes which are
mutually reachable is very small. This does not fit with current theory, based on random …