Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Monetti, Roberto A."'
The coupling complexity index is an information measure introduced within the framework of ordinal symbolic dynamics. This index is used to characterize the complexity of the relationship between dynamical system components. In this work, we clarify
Externí odkaz:
http://arxiv.org/abs/1305.1735
In ordinal symbolic dynamics, transcripts describe the algebraic relationship between ordinal patterns. Using the concept of transcript, we exploit the mathematical structure of the group of permutations to derive properties and relations among infor
Externí odkaz:
http://arxiv.org/abs/1304.7613
Autor:
Raeth, Christoph, Monetti, Roberto A.
The method of surrogates is widely used in the field of nonlinear data analysis for testing for weak nonlinearities. The two most commonly used algorithms for generating surrogates are the amplitude adjusted Fourier transform (AAFT) and the iterated
Externí odkaz:
http://arxiv.org/abs/0812.2380
We present a methodology to characterize synchronization in time series based on symbolic representations. A symbol is linked to a sequence of numbers through the rank-order of its values. A representation of a time series results after mapping all s
Externí odkaz:
http://arxiv.org/abs/0804.4634
We present a methodology for detecting non-linearities in data sets based on the characterization of the structural features of the Fourier phase maps. A Fourier phase map is a 2D set of points $M= \{(\phi_{\vec{k}}, \phi_{\vec{k} + \vec{\Delta}})\}$
Externí odkaz:
http://arxiv.org/abs/physics/0405130
We study the temporal correlations in the sea surface temperature (SST) fluctuations around the seasonal mean values in the Atlantic and Pacific oceans. We apply a method that systematically overcome possible trends in the data. We find that the SST
Externí odkaz:
http://arxiv.org/abs/cond-mat/0210077
Autor:
Livina, Valerie N., Ashkenazy, Yosef, Braun, Peter, Monetti, Roberto, Bunde, Armin, Havlin, Shlomo
We study the spectral properties of the magnitudes of river flux increments, the volatility. The volatility series exhibits (i) strong seasonal periodicity and (ii) strongly power-law correlations for time scales less than one year. We test the nonli
Externí odkaz:
http://arxiv.org/abs/cond-mat/0209586
First- and second-order temperature driven transitions are studied, in a lattice gas driven by an oscillatory field. The short time dynamics study provides upper and lower bounds for the first-order transition points obtained using standard simulatio
Externí odkaz:
http://arxiv.org/abs/cond-mat/0004400
First-order irreversible phase transitions (IPT's) between an active regime and an absorbing state are studied in two models by means of both simulations and mean-field stability analysis. Hysteresis around coexistence is the result of the interplay
Externí odkaz:
http://arxiv.org/abs/cond-mat/9911040
Hot monomers are particles having a transient mobility (a ballistic flight) prior to being definitely absorbed on a surface. After arriving at a surface, the excess energy coming from the kinetic energy in the gas phase is dissipated through degrees
Externí odkaz:
http://arxiv.org/abs/cond-mat/9905037