Results 41 to 50 of about 4,416,987 (284)

fMRI BOLD Correlates of EEG Independent Components: Spatial Correspondence With the Default Mode Network

open access: yesFrontiers in Human Neuroscience, 2018
Goal: We aimed to identify electroencephalographic (EEG) signal fluctuations within independent components (ICs) that correlate to spontaneous blood oxygenation level dependent (BOLD) activity in regions of the default mode network (DMN) during eyes ...
Marcel Prestel   +4 more
doaj   +1 more source

Blind extraction of an exoplanetary spectrum through Independent Component Analysis [PDF]

open access: yes, 2013
Blind-source separation techniques are used to extract the transmission spectrum of the hot-Jupiter HD189733b recorded by the Hubble/NICMOS instrument. Such a 'blind' analysis of the data is based on the concept of independent component analysis.
Deroo, Pieter   +5 more
core   +1 more source

Independent Component Analysis Based on Information Bottleneck

open access: yesAbstract and Applied Analysis, 2015
The paper is mainly used to provide the equivalence of two algorithms of independent component analysis (ICA) based on the information bottleneck (IB). In the viewpoint of information theory, we attempt to explain the two classical algorithms of ICA by ...
Qiao Ke   +4 more
doaj   +1 more source

BMICA-independent component analysis based on B-spline mutual information estimator [PDF]

open access: yes, 2012
The information theoretic concept of mutual information provides a general framework to evaluate dependencies between variables. Its estimation however using B-Spline has not been used before in creating an approach for Independent Component Analysis. In
Li, Yan, Walters-Williams, Janett
core   +1 more source

On Independent Component Analysis with Stochastic Volatility Models

open access: yesAustrian Journal of Statistics, 2017
Consider a multivariate time series where each component series is assumed to be a linear mixture of latent mutually independent stationary time series.
Markus Matilainen   +4 more
doaj   +1 more source

Efficient independent component analysis

open access: yes, 2007
Independent component analysis (ICA) has been widely used for blind source separation in many fields such as brain imaging analysis, signal processing and telecommunication.
Bickel, Peter J., Chen, Aiyou
core   +2 more sources

Non-independent component analysis

open access: yesThe Annals of Statistics
A seminal result in the ICA literature states that for $AY = \varepsilon$, if the components of $\varepsilon$ are independent and at most one is Gaussian, then $A$ is identified up to sign and permutation of its rows (Comon, 1994). In this paper we study to which extent the independence assumption can be relaxed by replacing it with restrictions on ...
Mesters, Geert, Zwiernik, Piotr
openaire   +4 more sources

Classification and analysis of emission-line galaxies using mean field independent component analysis [PDF]

open access: yes, 2013
We present an analysis of the optical spectra of narrow emission-line galaxies, based on mean field independent component analysis (MFICA). Samples of galaxies were drawn from the Sloan Digital Sky Survey (SDSS) and used to generate compact sets of ...
Allen, James T.   +4 more
core   +3 more sources

Independent Component Analysis for Improved Defect Detection in Guided Wave Monitoring [PDF]

open access: yes, 2015
Guided wave sensors are widely used in a number of industries and have found particular application in the oil and gas industry for the inspection of pipework.
Cawley, P, Dobson
core   +1 more source

Knowledge-guided multi-scale independent component analysis for biomarker identification

open access: yesBMC Bioinformatics, 2008
Background Many statistical methods have been proposed to identify disease biomarkers from gene expression profiles. However, from gene expression profile data alone, statistical methods often fail to identify biologically meaningful biomarkers related ...
Zhang Zhen   +7 more
doaj   +1 more source

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