Multilayer weighted social network model

TY - JOUR

T1 - Multilayer weighted social network model

AU - Murase, Yohsuke

AU - Török, János

AU - Jo, Hang Hyun

AU - Kaski, Kimmo

AU - Kertész, János

PY - 2014/11/17

Y1 - 2014/11/17

N2 - Recent empirical studies using large-scale data sets have validated the Granovetter hypothesis on the structure of the society in that there are strongly wired communities connected by weak ties. However, as interaction between individuals takes place in diverse contexts, these communities turn out to be overlapping. This implies that the society has a multilayered structure, where the layers represent the different contexts. To model this structure we begin with a single-layer weighted social network (WSN) model showing the Granovetterian structure. We find that when merging such WSN models, a sufficient amount of interlayer correlation is needed to maintain the relationship between topology and link weights, while these correlations destroy the enhancement in the community overlap due to multiple layers. To resolve this, we devise a geographic multilayer WSN model, where the indirect interlayer correlations due to the geographic constraints of individuals enhance the overlaps between the communities and, at the same time, the Granovetterian structure is preserved.

AB - Recent empirical studies using large-scale data sets have validated the Granovetter hypothesis on the structure of the society in that there are strongly wired communities connected by weak ties. However, as interaction between individuals takes place in diverse contexts, these communities turn out to be overlapping. This implies that the society has a multilayered structure, where the layers represent the different contexts. To model this structure we begin with a single-layer weighted social network (WSN) model showing the Granovetterian structure. We find that when merging such WSN models, a sufficient amount of interlayer correlation is needed to maintain the relationship between topology and link weights, while these correlations destroy the enhancement in the community overlap due to multiple layers. To resolve this, we devise a geographic multilayer WSN model, where the indirect interlayer correlations due to the geographic constraints of individuals enhance the overlaps between the communities and, at the same time, the Granovetterian structure is preserved.

UR - http://www.scopus.com/inward/record.url?scp=84913554899&partnerID=8YFLogxK

U2 - 10.1103/PhysRevE.90.052810

DO - 10.1103/PhysRevE.90.052810

M3 - Article

VL - 90

SP - 1

EP - 8

JO - Physical Review E

JF - Physical Review E

SN - 2470-0045

IS - 5

M1 - 052810

ER -