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On the conditions for valid objective functions in blind separation of independent and dependent sources
(Springer, 2012-10)
It is well known that independent sources can be blindly detected and separated, one by one, from linear mixtures by identifying local extrema of certain objective functions (contrasts), like negentropy, Non-Gaussianity ...
Detection of Auditory Cortex Activity by fMRI Using a Dependent Component Analysis
(SPRINGER-VERLAG BERLIN, 2010)
Functional MRI (fMRI) data often have low signal-to-noise-ratio (SNR) and are contaminated by strong interference from other physiological sources. A promising tool for extracting signals, even under low SNR conditions, ...
Using generic order moments for separation of dependent sources with linear conditional expectations
(European Association For Signal Processing, 2013)
In this work, we approach the blind separation of dependent sources based only on a set of their linear mixtures. We prove that, when the sources have a pairwise dependence characterized by the linear conditional expectation ...
Application of Principal Component Analysis to Elucidate Experimental and Theoretical Information
(IntechOpen, 2012)
Principal Component Analysis has been widely used in different scientific areas and fordifferent purposes. The versatility and potentialities of this unsupervised method for dataanalysis, allowed the scientific community ...
Effect of interacting second- and third-order stimulus-dependent correlations on population-coding asymmetries
(American Physical Society, 2016-10)
Spike correlations among neurons are widely encountered in the brain. Although models accounting for pairwise interactions have proved able to capture some of the most important features of population activity at the level ...
Analysis of nifH-RNA reveals phylotypes related to Geobacter and Cyanobacteria as important functional components of the N2-fixing community depending on depth and agricultural use of soil
(Blackwell Publishing, 2017-05)
In this survey, a total of 80 787 reads and 28 171 unique NifH protein sequences were retrieved from soil RNA. This dataset extends our knowledge about the structure and diversity of the functional diazotrophic communities ...
Analysis of nifH-RNA reveals phylotypes related to Geobacter and Cyanobacteria as important functional components of the N2-fixing community depending on depth and agricultural use of soil
(Blackwell Publishing, 2017-05)
In this survey, a total of 80 787 reads and 28 171 unique NifH protein sequences were
retrieved from soil RNA. This dataset extends our knowledge about the structure and
diversity of the functional diazotrophic communities ...
Seeking relevant information from a statistical model
(EDP Sciences, 2016-11)
We herein introduce a general variable selection procedure, which can be applied to several parametric multivariate problems, including principal components and regression, among others. The aim is to allow the identification ...
Second-order analyte quantitation under Identical profiles in one data dimension. A dependency-adapted partial least-squares/residual bilinearization method
(American Chemical Society, 2010-06)
Analyte quantitation can be achieved from second-order data in the presence of uncalibrated components using multivariate calibration methods such as partial leastsquares with residual bilinearization. However, the latter ...