Naslov
On the rich-club effect in dense and weighted networks

Autori
Zlatić, Vinko ; Bianconi, G. ; Diaz-Guilera, A. ; Garlaschelli, D. ; Rao, F. ; Caldarelli, G.

Izvornik
European physical journal B : condensed matter physics (1434-6028) 67 (2009), 3; 271-275

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
dense and weighted networks ; null model ; rich-club coefficient

Sažetak
For many complex networks present in nature only a single instance, usually of large size, is available. Any measurement made on this single instance cannot be repeated on different realizations. In order to detect significant patterns in a real-world network it is therefore crucial to compare the measured results with a null model counterpart. Here we focus on dense and weighted networks, proposing a suitable null model and studying the behaviour of the degree correlations as measured by the rich-club coefficient. Our method solves an existing problem with the randomization of dense unweighted graphs, and at the same time represents a generalization of the rich-club coefficient to weighted networks which is complementary to other recently proposed ones.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA