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• W2903055851 abstract "The issue of convolutive blind source separation (BSS) is addressed in this paper. Independent low-rank matrix analysis (ILRMA), unifying frequency-domain independent component analysis (FDICA) and nonnegative matrix factorization (NMF), is a method that has recently proposed to model low-rank structure of source spectra by using NMF in addition to independence between sources used in FDICA and independent vector analysis (IVA). Although ILRMA has been shown to provide better separation performance than FDICA and IVA, the frequency components of each source are assumed to be independent in ILRMA due to NMF modeling of source spectra, which may degrade its performance when the short-term Fourier transform (STFT) is unable to decorrelate the frequency components for each source. This paper therefore presents a new BSS method that unifies IVA and positive semidefinite tensor factorization (PSDTF). PSDTF models not only power spectra in the same way NMF does but also models the correlations between frequency bins in each source. The proposed method can be viewed as a multichannel extension of PSDTF and exploits both the independence between sources and the inter-frequency correlations as a clue for separating mixtures. Experimental results indicate the improved performance of our approach." @default.
• W2903055851 created "2018-12-11" @default.
• W2903055851 creator A5084590882 @default.
• W2903055851 date "2018-09-01" @default.
• W2903055851 modified "2023-09-28" @default.
• W2903055851 title "Independent Positive Semidefinite Tensor Analysis in Blind Source Separation" @default.
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• W2903055851 doi "https://doi.org/10.23919/eusipco.2018.8553546" @default.
• W2903055851 hasPublicationYear "2018" @default.
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