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    Université de Fribourg

    Heavy-tailed statistics in short-message communication

    Wei, Hong ; Xiao-Pu, Han ; Tao, Zhou ; Bing-Hong, Wang

    In: Chinese Physics Letters, 2009, vol. 26, no. 02, p. 028902

    Short-message (SM) is one of the most frequently used communication channels in modern society. Based on the SM communication records provided by some volunteers, we investigate the statistics of SM communication pattern, including the inter-event time distributions between two consecutive short messages and two conversations, and the distribution of message number contained in a complete...

    Université de Fribourg

    Step-by-step random walk network with power-law clique-degree distribution

    Han-Xin, Yang ; Bing-Hong, Wang ; Jian-Guo, Liu ; Xiao-Pu, Han ; Tao, Zhou

    In: Chinese Physics Letters, 2008, vol. 25, no. 7, p. 2718-2720

    We propose a simple mechanism for generating scale-free networks with degree exponent γ = 3, where the new node is connected to the existing nodes by step-by-step random walk. It is found that the clique-degree distribution based on our model obeys a power-law form, which is in agreement with the recently empirical evidences. In addition, our model displays the small-world effect and the...