Search in power-law networks

Lada A. Adamic, Rajan M. Lukose, Amit R. Puniyani, Bernardo A. Huberman
2001 Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics  
Many communication and social networks have power-law link distributions, containing a few nodes which have a very high degree and many with low degree. The high connectivity nodes play the important role of hubs in communication and networking, a fact which can be exploited when designing efficient search algorithms. We introduce a number of local search strategies which utilize high degree nodes in power-law graphs and which have costs which scale sub-linearly with the size of the graph. We
more » ... so demonstrate the utility of these strategies on the Gnutella peer-to-peer network.
doi:10.1103/physreve.64.046135 pmid:11690118 fatcat:4n7ryueds5dpth6uc7zjk2h4je