Journal of East China Normal University(Natural Sc ›› 2017, Vol. 2017 ›› Issue (2): 75-80.doi: 10.3969/j.issn.1000-5641.2017.02.010

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Comparative regression analysis to degree distributions of visibility graph

ZHANG Rong, ZOU Yong   

  1. School of Physics and Materials Science, East China Normal University, Shanghai 200241, China
  • Received:2016-03-18 Online:2017-03-25 Published:2017-03-23

Abstract:

Visibility graph has provided much insight to study the dynamics of time series from the perspective complex network. We construct visibility graphs for time series from both auto-regressive stochastic and fractional Brownian motions. Our results suggest that degree distributions of the resulted complex networks of auto-regressive processes are characterized by exponential forms, while that of fractional Brownian motions obey power-law forms. Our conclusions hold for both the traditional visibility graph and its variant horizontal visibility graph.

Key words: visibility graph, autoregressive stochastic process, fractional Brownian motion, goodness of fit

CLC Number: