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 …

Background The coronavirus disease 2019 (COVID-19) epidemic met coincidentally with
massive migration before Lunar New Year in China in early 2020. This study is to investigate …

Scale-free networks, in which the distribution of the degrees obeys a power-law, are
ubiquitous in the study of complex systems. One basic network property that relates to the …

Many real-world networks exhibit correlations between the node degrees. For instance, in
social networks nodes tend to connect to nodes of similar degree and conversely, in …

In this paper, we study small hammock networks, more precisely the 29 hammock networks
presented by Moore and Shannon in their prescient paper from 1956, where this type of …

This article argues that technical leaders in a post-COVID-19 world should adopt
stakeholder-oriented management techniques tailored to complex, chaotic, and disordered …

The relation between network structure and dynamics is determinant for the behavior of
complex systems in numerous domains. An important long-standing problem concerns the …

Nowadays, production-oriented manufacturing is transforming to service-oriented one,
which leads to an increasing demand for high reliability of manufacturing systems. However …

We introduce a method to estimate the failure time of a class of weighted k-out-of-n systems
using the idea of rational expectations, which to the best of our knowledge is a new …

In this paper, we develop a new method for evaluating the reliability polynomial of a
hammock network. The method is based on a homogeneous absorbing Markov chain and …