Bayesian inference for nonnegative matrix factorisation models

AT Cemgil - Computational intelligence and neuroscience, 2009 - Wiley Online Library
We describe nonnegative matrix factorisation (NMF) with a Kullback‐Leibler (KL) error
measure in a statistical framework, with a hierarchical generative model consisting of an …

Kernel additive models for source separation

A Liutkus, D Fitzgerald, Z Rafii, B Pardo… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
Source separation consists of separating a signal into additive components. It is a topic of
considerable interest with many applications that has gathered much attention recently …

Generalized Wiener filtering with fractional power spectrograms

A Liutkus, R Badeau - 2015 IEEE International Conference on …, 2015 - ieeexplore.ieee.org
In the recent years, many studies have focused on the single-sensor separation of
independent waveforms using so-called soft-masking strategies, where the short term …

Gaussian processes for underdetermined source separation

A Liutkus, R Badeau, G Richard - IEEE Transactions on Signal …, 2011 - ieeexplore.ieee.org
Gaussian process (GP) models are very popular for machine learning and regression and
they are widely used to account for spatial or temporal relationships between multivariate …

Cauchy nonnegative matrix factorization

A Liutkus, D Fitzgerald… - 2015 IEEE Workshop on …, 2015 - ieeexplore.ieee.org
Nonnegative matrix factorization (NMF) is an effective and popular low-rank model for
nonnegative data. It enjoys a rich background, both from an optimization and probabilistic …

Informed source separation through spectrogram coding and data embedding

A Liutkus, J Pinel, R Badeau, L Girin, G Richard - Signal Processing, 2012 - Elsevier
We address the issue of underdetermined source separation in a particular informed
configuration where both the sources and the mixtures are known during a so-called …

Adaptive filtering for music/voice separation exploiting the repeating musical structure

A Liutkus, Z Rafii, R Badeau, B Pardo… - … on Acoustics, Speech …, 2012 - ieeexplore.ieee.org
The separation of the lead vocals from the background accompaniment in audio recordings
is a challenging task. Recently, an efficient method called REPET (REpeating Pattern …

Scalable audio separation with light kernel additive modelling

A Liutkus, D Fitzgerald, Z Rafii - 2015 IEEE International …, 2015 - ieeexplore.ieee.org
Recently, Kernel Additive Modelling (KAM) was proposed as a unified framework to achieve
multichannel audio source separation. Its main feature is to use kernel models for locally …

Time-frequency analysis as probabilistic inference

RE Turner, M Sahani - IEEE Transactions on Signal Processing, 2014 - ieeexplore.ieee.org
This paper proposes a new view of time-frequency analysis framed in terms of probabilistic
inference. Natural signals are assumed to be formed by the superposition of distinct time …

Probabilistic model for main melody extraction using constant-Q transform

B Fuentes, A Liutkus, R Badeau… - 2012 IEEE International …, 2012 - ieeexplore.ieee.org
Dimension reduction techniques such as Nonnegative Tensor Factorization are now
classical for both source separation and estimation of multiple fundamental frequencies in …