Showing 1 - 10 of 54
locally optimizing modularity using individual ants. The basic version of MABA, namely SABA, combines a self-avoiding label … that mitigates the resolution limit of modularity. The proposed MABA has been evaluated on both computer …
Persistent link: https://www.econbiz.de/10010616243
employs a metric, named modularity Q as the fitness function and applies a special locus-based adjacency encoding schema to …
Persistent link: https://www.econbiz.de/10008472628
We analyze the relationships within the liquid fuels system and its associated supply chain using innovative network filtering methods, namely the Minimum Spanning Tree and Triangulated Maximally Filtered Graph. Our findings reveal that biofuels form robust connections with their feedstocks that...
Persistent link: https://www.econbiz.de/10014494985
Migration has become a prominent research theme in geography and regional science and it has been approached from various methodological angles. Nonetheless, a common missing element in most migration studies is the lack of awareness of the overall network topology, which characterizes migration...
Persistent link: https://www.econbiz.de/10010326486
This paper proposes a new methodology based on non-negative matrix factor- ization to detect communities and to identify Systemically Important Financial In- stitutions in the interbank network as well as within communities. The method is specifically designed for directed weighted networks and...
Persistent link: https://www.econbiz.de/10011739611
We describe an unsupervised method for delineating functional labour market areas (LMAs) in national commuting networks. Our method uses the Louvain algorithm, which we extend to support top-down hierarchical LMA classification and estimable classification stabilities. We demonstrate our method...
Persistent link: https://www.econbiz.de/10012322441
This paper suggests an opinion dynamics approach to define community structures in complex networks. If a typical opinion dynamics model is applied to a network with a community structure, the network can separate in two groups of nodes. Such bisection in a given network can arise in many...
Persistent link: https://www.econbiz.de/10011163285
Migration has become a prominent research theme in geography and regional science and it has been approached from various methodological angles. Nonetheless, a common missing element in most migration studies is the lack of awareness of the overall network topology, which characterizes migration...
Persistent link: https://www.econbiz.de/10011257465
The purpose of this paper is to analyze the effects on the Italian directorship network of the corporate governance reform that was introduced in Italy in 2011 to prevent interlocking directorships in the financial sector. Interlocking directorships are important communication channels among...
Persistent link: https://www.econbiz.de/10011203090
The consideration of both the direct and the indirect effects of global production and trade is the first step in order to assess the sustainability of resource exploitation, in particular water usage. This paper applies the Global Multi-Regional Input-Output model to quantify the...
Persistent link: https://www.econbiz.de/10010838305