title: Bipartite network projection and personal recommendation.
abstract: One-mode projecting is extensively used to compress bipartite networks. Since one-mode projection is always less informative than the bipartite representation, a proper weighting method is required to better retain the original information. In this article, inspired by the network-based resource-allocation dynamics, we raise a weighting method which can be directly applied in extracting the hidden information of networks, with remarkably better performance than the widely used global ranking method as well as collaborative filtering. This work not only provides a creditable method for compressing bipartite networks, but also highlights a possible way for the better solution of a long-standing challenge in modern information science: How to do a personal recommendation.
authors.affiliation: Department of Physics, University of Fribourg, Chemin du Muse 3, CH-1700 Fribourg, Switzerland. zhutou@ustc.edu
authors.forename: Tao
authors.initials: T
authors.lastname: Zhou
authors.forename: Jie
authors.initials: J
authors.lastname: Ren
authors.forename: Matús
authors.initials: M
authors.lastname: Medo
authors.forename: Yi-Cheng
authors.initials: YC
authors.lastname: Zhang