1、Toward a Universal Understanding of Human Mobility and Social Networks 胡延庆 郇迪 张江 黎勇 樊瑛 王有贵 狄增如北京师范大学管理学院系统科学系北京师范大学复杂性研究中心2010.10 苏州Background and Motivationn Empirical Results of Mobility Animals and Human Beings Understanding Whyn Social Networks Distance Distribution of Social Links Maximum Entro
2、py Yields Itn Toward Universal Understanding of Both Mobility and Social NetworksMobility PatternPattern: most of the studies on animal mobility pattern including experimental data and theoretic analysis found that their mobility pattern follow the Levy flight:Levy flight search patterns of wanderin
3、g albatrosses, Nature 381, (1996)Revisiting Levy flight search patterns of wandering albatrosses, bumblebees and deer, NATURE| Vol 449|25 October 2007Scaling laws of marine predator search behaviour, Nature (2008 )Human MobilityD. Brockmann, L. Hufnagel and T. Geisel, The scaling laws of human trave
4、l, Nature, 439, 462-465, (2006).-1.59Human Mobility 1.75Understanding individual human mobility patternsMarta C. Gonzalez, Cesar A. Hidalgo & Albert-Laszlo Barabasi, NATURE| Vol 453|5 June 2008Optimizing the success of random searchesG. M. Viswanathan*, Sergey V. Buldyrev*, Shlomo Havlin*,M. G. E. d
5、a Luzk, E. P. Raposok# & H. Eugene Stanley*, NATURE |VOL 401 | 28 OCTOBER 1999 |Fish in Lvy-flight foragingGandhimohan M. ViswanathanLvy flights are a theoretical construct that has attracted wideinterdisciplinary interest. Empirical evidence shows that the principleapplies to the foraging of marine predators.NATURE|Vol 465|24 June 2010Understanding WhySearch EfficiencyNumber of target Sites Visitedto the Total Distance TranversedExploration and Preferential returnn (i) Exploration: with probabilitythe individual moves to a new locationn (ii) Preferential return: with probability
