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A fast algorithm for blind separation of non-Gaussian and time-correlated signals

机译:一种非高斯和与时间相关的信号的盲分离快速算法

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In this article we propose a computationally efficient method (termed FCOMBI) to combine the strengths of non-Gaussianity-based Blind Source Separation (BSS) and cross-correlations-based BSS. This is done by fusing the separation abilities of two well-known BSS algorithms: EFICA and WASOBI. Simulations show that our approach is at least as accurate and often more accurate that other state-of-the-art approaches which also aim to separate simultaneously non-Gaussian and time-correlated components. However, in terms of computational efficiency and stability, FCOMBI is the clear winner which makes it specially suitable for the analysis of very high-dimensional datasets like high-density Electroencephalographic(EEG) or Magnetoencephalographic (MEG) recordings.
机译:在本文中,我们提出了一种计算有效的方法(称为FCOMBI),以结合基于非高斯性的盲源分离(BSS)和基于互相关的BSS的优势。这是通过融合两种著名的BSS算法(EFICA和WASOBI)的分离能力来完成的。仿真表明,我们的方法至少与其他旨在同时分离非高斯分量和时间相关分量的最新技术一样准确,而且通常更准确。但是,就计算效率和稳定性而言,FCOMBI无疑是赢家,这使其特别适合分析超高维数据集,例如高密度脑电图(EEG)或磁脑电图(MEG)记录。

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