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Weighted bipartite network and personalized recommendation

Pan, Xin ; Deng, Guishi ; Liu, Jian-Guo

In: Physics Procedia, 2010, vol. 3, no. 5, p. 1867-1876

In this paper, the degree distributions of a bipartite network, namely Movielens, are investigated. The statistical analysis shows that the distribution of the degree product, ku ko, has an exponential from, where ku and ko denote the user and object degrees respectively. By introducing the edge weight effect on the recommendation performance, an improved recommendation algorithm based on mass...