JOURNAL OF COMPUTERS (JCP)
ISSN : 1796-203X
Volume : 2    Issue : 5    Date : July 2007

Fast Information Retrieval in a Self–Organising P2P Network
Vincenza Carchiolo, Michele Malgeri, Giuseppe Mangioni, and Vincenzo Nicosia
Page(s): 75-81
Full Text:
PDF (372 KB)


Abstract
In this paper we present a formal description of PROSA, a P2P resource management system
heavily inspired by social networks. Social networks have been deeply studied in the last two
decades in order to understand how communities of people arise and grow. It is a widely known
result that networks of social relationships usually evolves to small–worlds, i.e. networks where
nodes are strongly connected to neighbours and separated from all other nodes by a small amount
of hops. This work shows that algorithms implemented into PROSA allow to obtain an efficient
small–world P2P network. We also show how taking advantage of PROSA structure it is possible to
effectively answer queries. In particular, the so–called query recall for PROSA is estimated and
compared to that obtained in SETS [1] and GES [2].

Index Terms
P2P, Social networks, Emerging structures