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Blind Signal Separation in the Presence of Gaussian Noise
Published on Aug 09, 20134012 Views
A prototypical blind signal separation problem is the so-called cocktail party problem, with n people talking simultaneously and n different microphones within a room. The goal is to recover each spee
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Chapter list
Blind Signal Separation in the Presence of Gaussian Noise00:00
Cocktail Party Problem (Example)00:02
Independent Component Analysis (ICA)00:47
Typical (noiseless) ICA Procedure02:35
Relaxing Step 103:23
Related Work (efficient noisy ICA)04:48
Our Contribution06:15
What are Cumulants?07:50
Properties of Multivariate Cumulants09:25
Quasi-Whitening Algorithm11:04
Algorithm’s Validity - 112:05
Algorithm’s Validity - 213:47
Main Result15:38
Quasi-Whitening Algorithm Restated17:27
Any Questions?18:16