57 research outputs found
Recurrence Quantification Analysis and Principal Components in the Detection of Short Complex Signals
Recurrence plots were introduced to help aid the detection of signals in
complicated data series. This effort was furthered by the quantification of
recurrence plot elements. We now demonstrate the utility of combining
recurrence quantification analysis with principal components analysis to allow
for a probabilistic evaluation for the presence of deterministic signals in
relatively short data lengths.Comment: 10 pages, 3 figures; Elsevier preprint, elsart style; programs used
for analysis available for download at http://homepages.luc.edu/~cwebbe
Fractal Fluctuations and Quantum-Like Chaos in the Brain by Analysis of Variability of Brain Waves: A New Method Based on a Fractal Variance Function and Random Matrix Theory
We developed a new method for analysis of fundamental brain waves as recorded
by EEG. To this purpose we introduce a Fractal Variance Function that is based
on the calculation of the variogram. The method is completed by using Random
Matrix Theory. Some examples are given
Electronic Journal of Theoretical Physics Non Linear Assessment of Musical Consonance
Abstract: The position of intervals and the degree of musical consonance can be objectively explained by temporal series formed by mixing two pure sounds covering an octave. This result is achieved by means of Recurrence Quantification Analysis (RQA) without considering neither overtones nor physiological hypotheses. The obtained prediction of a consonance can be considered a novel solution to Galileo’s conjecture on the nature of consonance. It constitutes an objective link between musical performance and listeners ’ hearing activity
Recurrence quantification analysis as a tool for the characterization of molecular dynamics simulations
A molecular dynamics simulation of a Lennard-Jones fluid, and a trajectory of
the B1 immunoglobulin G-binding domain of streptococcal protein G (B1-IgG)
simulated in water are analyzed by recurrence quantification, which is
noteworthy for its independence from stationarity constraints, as well as its
ability to detect transients, and both linear and nonlinear state changes. The
results demonstrate the sensitivity of the technique for the discrimination of
phase sensitive dynamics. Physical interpretation of the recurrence measures is
also discussed.Comment: 7 pages, 8 figures, revtex; revised for review for Phys. Rev. E
(clarifications and expansion of discussion)-- addition of the 8 postscript
figures previously omitted, but unchanged from version
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