title: A simple model clarifies the complicated relationships of complex networks.
abstract: Real-world networks such as the Internet and WWW have many common traits. Until now, hundreds of models were proposed to characterize these traits for understanding the networks. Because different models used very different mechanisms, it is widely believed that these traits origin from different causes. However, we find that a simple model based on optimisation can produce many traits, including scale-free, small-world, ultra small-world, Delta-distribution, compact, fractal, regular and random networks. Moreover, by revising the proposed model, the community-structure networks are generated. By this model and the revised versions, the complicated relationships of complex networks are illustrated. The model brings a new universal perspective to the understanding of complex networks and provide a universal method to model complex networks from the viewpoint of optimisation.
authors.affiliation: 1] College of Computer Science, South-Central University For Nationalities, Wuhan 430074, China [2] State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China [3] Computer School, Wuhan University, Wuhan 430072, China.
authors.forename: Bojin
authors.initials: B
authors.lastname: Zheng
authors.affiliation: Computer School, Wuhan University, Wuhan 430072, China.
authors.forename: Hongrun
authors.initials: H
authors.lastname: Wu
authors.affiliation: Computer School, Wuhan University, Wuhan 430072, China.
authors.forename: Li
authors.initials: L
authors.lastname: Kuang
authors.affiliation: College of Computer Science, South-Central University For Nationalities, Wuhan 430074, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Qin
authors.affiliation: College of Computer Science, South-Central University For Nationalities, Wuhan 430074, China.
authors.forename: Wenhua
authors.initials: W
authors.lastname: Du
authors.affiliation: School of Software, Tsinghua University, Beijing 100084, China.
authors.forename: Jianmin
authors.initials: J
authors.lastname: Wang
authors.affiliation: School of Software, Tsinghua University, Beijing 100084, China.
authors.forename: Deyi
authors.initials: D
authors.lastname: Li