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Brain connectivity analysis: a short survey
Lang, E. W.; Tomé, A. M.; Keck, I. R.; Górriz-Sáez, J. M.; Puntonet, C. G.This short survey the reviews recent literature on brain connectivity studies. It encompasses all forms of static and dynamic connectivity whether anatomical, functional, or effective. The last decade has seen an ever increasing number of studies devoted to deduce functional or effective connectivity, mostly from functional neuroimaging experiments. Resting state conditions have become a dominant experimental p...
Hybridizing sparse component analysis with genetic algorithms for microarray an...
Stadlthanner, K.; Theis, F. J.; Lang, E. W.; Tomé, A. M.; Puntonet, C. G.; Górriz, J. M.Nonnegative Matrix Factorization (NMF) has proven to be a useful tool for the analysis of nonnegative multivariate data. However, it is known not to lead to unique results when applied to Blind Source Separation (BSS) problems. In this paper we present an extension of NMF capable of solving the BSS problem when the underlying sources are sufficiently sparse. In contrast to most well-established BSS methods, the...
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