Empirical paths to the spread of information in locationbased social networks

Zhou, MingYang
Laboratory of Popular High Performance Computers, Shenzhen University, China

Xiong, WenMan
Laboratory of Popular High Performance Computers, Shenzhen University, China

Liao, Hao
Laboratory of Popular High Performance Computers, Shenzhen University, China  Physics Department, University of Fribourg, Switzerland

Wang, Tong
Department of Electronic Science, University of Science and Technology of China, Hefei, China

Wei, ZongWen
Laboratory of Popular High Performance Computers, Shenzhen University, China  Department of Electronic Science, University of Science and Technology of China, Hefei, China
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Published in:
 Journal of Statistical Mechanics: Theory and Experiment.  2018, vol. 2018, no. 12, p. 123404
English
Spreading phenomena in complex networks have attracted much attention in recent years. However, most of the previous works only concern the critical thresholds and final states of the spread. In this paper, we investigate the empirical spreading paths in real locationbased networks and find an abnormal phenomenon that the transferring probability of an epidemic between users varies with time, which violates the classical spreading models with a constant transferring probability. Besides, we observe an interesting delay gap between the maximal spreading velocity and the maximal transferring probability, where the spreading velocity refers to the fraction of newly infected nodes, and transferring probability represents the probability that a susceptible individual gets infected by one of its infected neighbors. Then we propose an advanced SI (susceptibleinfected) model to analyze the problem, which could analytically explain the delay gap between the spreading velocity and the transferring probability. Experiments in BA and ER model networks demonstrate the effectiveness of our model. Thus, our work provides a deep understanding of the dynamics of the spreading problems.

Faculty
 Faculté des sciences et de médecine

Department
 Département de Physique

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Classification

Physics

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https://folia.unifr.ch/unifr/documents/307471
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