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A coupled model for the indegree and outdegree analysis of the Web

We introduce a mixed model for web graph which simultaneously describes the inlink and outlink distributions, by taking into account the interconnection of the two processes. We derive the expression for the steady-state distribution of indegrees (outdegrees) among vertices with fixed outdegree (indegree) in terms of sums of Beta functions. The experimentation on subsets of the real web shows that the proposed distributions well reproduce the behaviour of the observed data.


Internet Mathematics, 2011

Autori esterni: Grazia Lotti ( Universita' di Parma), Ornella Menchi ( Universita' di Pisa), Francesco Romani ( Universita' di Pisa)
Autori IIT:

Tipo: Articoli su riviste non ISI con referee internazionali
Area di disciplina: Information Technology and Communication Systems
Da pagina 437 a pagina 459

Attività: Metodi numerici per problemi di grandi dimensioni