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» Source Separation with Gaussian Process Models
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ICML
2008
IEEE
14 years 8 months ago
Topologically-constrained latent variable models
In dimensionality reduction approaches, the data are typically embedded in a Euclidean latent space. However for some data sets this is inappropriate. For example, in human motion...
Raquel Urtasun, David J. Fleet, Andreas Geiger, Jo...
ICASSP
2008
IEEE
14 years 1 months ago
Bayesian extensions to non-negative matrix factorisation for audio signal modelling
We describe the underlying probabilistic generative signal model of non-negative matrix factorisation (NMF) and propose a realistic conjugate priors on the matrices to be estimate...
Tuomas Virtanen, Ali Taylan Cemgil, Simon J. Godsi...
ICASSP
2010
IEEE
13 years 7 months ago
Statistical modeling of co-channel interference in a field of Poisson distributed interferers
—With increasing spatial reuse of the radio spectrum, co-channel interference is becoming a dominant noise source and may severely degrade the communication performance of wirele...
Kapil Gulati, Brian L. Evans, Keith R. Tinsley
ICASSP
2008
IEEE
14 years 1 months ago
Multi-source DOA estimation in a reverberant room
In a reverberant scenario, phase transformed weighted algorithms are more robust than Maximum Likelihood (ML) because of the insufficiency of the data model to incorporate reverb...
Andreas M. Ali, Ralph E. Hudson, Kung Yao
ICIP
2007
IEEE
14 years 9 months ago
Overlapped Quasi-Arithmetic Codes for Distributed Video Coding
This paper describes Slepian-Wolf codes based on overlapped quasi-arithmetic codes, where overlapping allows lossy compression of the source below its entropy. In the context of s...
Xavier Artigas, Simon Malinowski, Christine Guille...