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Measuring complexity of biomedical signals
(John Wiley & Sons Inc, 2018-09)
It is well known that biomedical signals, such as heart rate variability (HRV), electrocardiogram (ECG), electroencephalogram (EEG), and voice, arise from complex nonlinear dynamical systems, as the cardiovascular, nervous, ...
Effect of label noise in the complexity of classification problems
(ElsevierAmsterdam, 2015-07)
Noisy data are common in real-world problems and may have several causes, like in accuracies, distortions or contamination during data collection, storage and/or transmission. The presence of noise in data can affect the ...
Effect of label noise in the complexity of classification problems
(Elsevier B.V., 2015-07-21)
Noisy data are common in real-World problems and may have several causes, like inaccuracies, distortions or contamination during data collection, storage and/or transmission. the presence of noise in data can affect the ...
Effective Complexity: In Which Sense is It Informative?
(Springer, 2020-09)
This work responds to a criticism of effective complexity made by James McAllister, according to which such a notion is not an appropriate measure for information content. Roughly, effective complexity is focused on the ...
Multichannel Time-Frequency Complexity Measures for the Analysis of Age-Related Changes in Neuromagnetic Resting-State Activity
(Instituto de Ingeniería Eléctrica y Electrónica, 2019-01)
We propose new multichannel time-frequency complexity measures to evaluate differences on magnetoencephalograpy (MEG) recordings between healthy young and old subjects at rest at different spatial scales. After reviewing ...
Experimental study of the complex reflection coefficient of shear waves from the solid-liquid interface
(2010-01-01)
The determination of the reflection coefficient of shear waves reflected from a solid-liquid interface is an important method in order to study the viscoelastic properties of liquids at high frequency. The reflection ...
Experimental study of the complex reflection coefficient of shear waves from the solid-liquid interface
(2010-01-01)
The determination of the reflection coefficient of shear waves reflected from a solid-liquid interface is an important method in order to study the viscoelastic properties of liquids at high frequency. The reflection ...
P3L-3 Viscosity measurement of Newtonian liquids using the complex reflection coefficient
(2006-12-01)
This work presents the implementation of the ultrasonic shear reflectance method for viscosity measurement of Newtonian liquids using wave mode conversion from longitudinal to shear waves and vice-versa. The method is based ...