This review addresses a central question in the field of complex systems: given a fluctuating
(in time or space), sequentially measured set of experimental data, how should one analyze …

Over the past two decades percolation theory has been used to explain and model a wide
variety of phenomena that are of industrial and scientific importance. Examples include …

A water-level meter installed in Changping well, China, recorded coseismic fluctuations and
a step change induced by the M w 9.0 Tohoku earthquake of 11 March 2011. Here we …

Three distinct methods, namely, the spectral density, the multifractal random walk approach,
and the multifractal detrended fluctuation analysis are utilized to study the properties of four …

Time series often exhibit a combination of long-range drift and short-term stochastic
fluctuations. Traditional methods for analyzing such series involve fitting regression models …

摘要随着地下流体观测技术的提高, 尤其是地下流体观测数字化改造以后, 观测资料的采样频率
明显提高, 这些高频采样的观测资料中蕴含着丰富的构造信息, 如何从分钟值甚至更高频率采样 …

We carry out a series of cross-correlation analysis of raw well-log data, in order to study the
possible connection between natural gamma ray (GR) logs and other types of well logs …

Correlations in a multifractal series have been investigated extensively. Almost all
approaches try to find scaling features of a given time series. However, the scaling analysis …

Experimental data for pressure fluctuation time series in a fluidized bed are analyzed by
several distinct, but complementary methods. First, we compute a multiscale probability …

In previous parts of this series we analyzed experimental times series that represent
pressure fluctuation in a fluidized bed. Part I focused on the existence of long-range …