NDLI: Single channel blind source separation based on probabilistic matrix factorisation

Content Provider	IET Digital Library
Author	Kim, Han Gyu Jang, Gil Jin Park, Jeong Sik Oh, Yung Hwan Choi, Ho Jin
Abstract	A novel single channel blind source separation method based on probabilistic matrix factorisation (PMF) is proposed. Compared to the conventional non-negative matrix factorisation (NMF) employing Euclidean distance or Kullback–Leibler divergence, PMF uses the log posterior probability as a cost function for optimising spectrum and activation matrices. Such cost function has an advantage that the hyperparameters are optimised numerically without cross-validation. In order to apply PMF to audio source separation, both Gaussian and Laplacian priors are considered. Exponential substitution for target matrices is also proposed to guarantee the non-negativity of the separated spectrogram. In source separation experiments, the proposed PMF-based approach provided significantly better performance than the conventional NMF.
Starting Page	1429
Ending Page	1431
Page Count	3
ISSN	00135194
Volume Number	53
e-ISSN	1350911X
Issue Number	Issue 21, Oct (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/53/21
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2017.2013
Journal	Electronics Letters
Publisher Date	2017-09-13
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Activation Matrices Algebra Audio Source Separation Blind Source Separation Cost Function Euclidean Distance HyperParameter Kullback-Leibler Divergence Log Posterior Probability Matrix Decomposition NMF Nonnegative Matrix Factorisation Optimising Spectrum PMF Probabilistic Matrix Factorisation Probability Separated Spectrogram Signal Processing And Detection Signal Processing Theory Single Channel Blind Source Separation Statistics
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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