Multi-resolution beta-divergence NMF for blind spectral unmixing
Résumé
Many datasets are obtained as a resolution trade-off between two adversarial dimensions; for example between the frequency and the temporal resolutions for the spectrogram of an audio signal, and between the number of wavelengths and the spatial resolution for a hyper/multi-spectral image. To perform blind source separation using observations with different resolutions, a standard approach is to use coupled nonnegative matrix factorizations (NMF).
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2007.03893.pdf (1.73 Mo)
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2007.03893 (1).pdf (1.73 Mo)
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