A fast fixed-point algorithm for independent component analysis
Neural Computation
Natural gradient learning for over- and under-complete bases in ICA
Neural Computation
Independent component analysis: algorithms and applications
Neural Networks
Linear geometric ICA: fundamentals and algorithms
Neural Computation
Beyond independent components: trees and clusters
The Journal of Machine Learning Research
Topographic Independent Component Analysis
Neural Computation
A blind source separation technique using second-order statistics
IEEE Transactions on Signal Processing
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The over-complete case remains a difficult problem in the field of independent component analysis (ICA). In this article we combine a technique called “region of interest” (ROI) with a standard complete ICA. We show how to create a mask using ICA, then using the masked data for a second ICA. At the same time this method eliminates a commonly necessary model-based step in fMRI data analysis. We also demonstrate our approach on a real world fMRI data set example.