Title
Reciprocity Of Weighted Networks
Abstract
In directed networks, reciprocal links have dramatic effects on dynamical processes, network growth, and higher-order structures such as motifs and communities. While the reciprocity of binary networks has been extensively studied, that of weighted networks is still poorly understood, implying an ever-increasing gap between the availability of weighted network data and our understanding of their dyadic properties. Here we introduce a general approach to the reciprocity of weighted networks, and define quantities and null models that consistently capture empirical reciprocity patterns at different structural levels. We show that, counter-intuitively, previous reciprocity measures based on the similarity of mutual weights are uninformative. By contrast, our measures allow to consistently classify different weighted networks according to their reciprocity, track the evolution of a network's reciprocity over time, identify patterns at the level of dyads and vertices, and distinguish the effects of flux (im) balances or other (a) symmetries from a true tendency towards (anti-) reciprocation.
Year
DOI
Venue
2012
10.1038/srep02729
SCIENTIFIC REPORTS
Keywords
Field
DocType
bioinformatics,biomedical research
Reciprocal,Vertex (geometry),Computer science,Theoretical computer science,Weighted network,Artificial intelligence,Reciprocity (social psychology),Homogeneous space,Binary number
Journal
Volume
ISSN
Citations 
3
2045-2322
18
PageRank 
References 
Authors
1.04
8
4
Name
Order
Citations
PageRank
Tiziano Squartini16711.86
Francesco Picciolo2313.55
Franco Ruzzenenti3385.36
Diego Garlaschelli49018.49