Results 11 to 20 of about 150,011 (287)

An Introduction to Independent Component Analysis: InfoMax and FastICA algorithms [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2010
This paper presents an introduction to independent component analysis (ICA). Unlike principal component analysis, which is based on the assumptions of uncorrelatedness and normality, ICA is rooted in the assumption of statistical independence ...
Dominique Gosselin   +2 more
doaj   +2 more sources

Extraction of the underlying structure of systematic risk from non-Gaussian multivariate financial time series using independent component analysis: Evidence from the Mexican stock exchange [PDF]

open access: yes, 2018
Regarding the problems related to multivariate non-Gaussianity of financial time series, i.e., unreliable results in extraction of underlying risk factors -via Principal Component Analysis or Factor Analysis-, we use Independent Component Analysis (ICA ...
Ladrón de Guevara Cortés, Rogelio   +2 more
core   +2 more sources

Independent Component Analysis of Spatiotemporal Chaos [PDF]

open access: yes, 2005
Two types of spatiotemporal chaos exhibited by ensembles of coupled nonlinear oscillators are analyzed using independent component analysis (ICA). For diffusively coupled complex Ginzburg-Landau oscillators that exhibit smooth amplitude patterns, ICA ...
Amari S.   +27 more
core   +1 more source

Analysis of scoliosis trunk deformities using ICA [PDF]

open access: yes, 2012
This paper describes a method for analyzing scoliosis trunk deformities using Independent Component Analysis (ICA). Our hypothesis is that ICA can capture the scoliosis deformities visible on the trunk.
Adankon, Mathias M.   +3 more
core   +1 more source

Multiple-Exposure Image Fusion for HDR Image Synthesis Using Learned Analysis Transformations

open access: yesJournal of Imaging, 2019
Modern imaging applications have increased the demand for High-Definition Range (HDR) imaging. Nonetheless, HDR imaging is not easily available with low-cost imaging sensors, since their dynamic range is rather limited.
Ioannis Merianos, Nikolaos Mitianoudis
doaj   +1 more source

Semi-Blind Signal Extraction for Communication Signals by Combining Independent Component Analysis and Spatial Constraints

open access: yesSensors, 2012
Signal of interest (SOI) extraction is a vital issue in communication signal processing. In this paper, we propose two novel iterative algorithms for extracting SOIs from instantaneous mixtures, which explores the spatial constraint corresponding to the ...
Yiyu Zhou, Zhitao Huang, Xiang Wang
doaj   +1 more source

Solvent content of protein crystals from diffraction intensities by Independent Component Analysis [PDF]

open access: yes, 2003
An analysis of the protein content of several crystal forms of proteins has been performed. We apply a new numerical technique, the Independent Component Analysis (ICA), to determine the volume fraction of the asymmetric unit occupied by the protein ...
A. Lamura   +34 more
core   +1 more source

A novel fixed-point algorithm for constrained independent component analysis

open access: yesEURASIP Journal on Advances in Signal Processing, 2019
Constrained independent component analysis (ICA) is an effective method for solving the blind source separation with a prior knowledge. However, most constrained ICA algorithms are proposed for the real-valued sources.
Guobing Qian   +3 more
doaj   +1 more source

Independent component approach to the analysis of EEG and MEG recordings [PDF]

open access: yes, 2000
Multichannel recordings of the electromagnetic fields emerging from neural currents in the brain generate large amounts of data. Suitable feature extraction methods are, therefore, useful to facilitate the representation and interpretation of the data ...
Hämäläinen, Dr Matti   +4 more
core   +1 more source

Application of independent component analysis to Fermilab Booster

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2005
Autocorrelation is applied to analyze sets of finite-sampling data such as the turn-by-turn beam position monitor (BPM) data in an accelerator. This method of data analysis, called the independent component analysis (ICA), is shown to be a powerful beam ...
Xiaobiao Huang   +3 more
doaj   +1 more source

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