Distributed FastMNMF imposes block-diagonal structure on source spatial covariance matrices to perform local inversions and share NMF spectrogram models across subarrays for faster, scalable blind source separation.
Mul- tichannel extensions of non-negative matrix factorization with complex-valued data,
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Fast Multichannel NMF with Block-Diagonal Spatial Covariance Matrices for Efficient Blind Source Separation Using Distributed Microphone Arrays
Distributed FastMNMF imposes block-diagonal structure on source spatial covariance matrices to perform local inversions and share NMF spectrogram models across subarrays for faster, scalable blind source separation.