Variational Bayesian EM algorithm for modeling mixtures of non-stationary signals in the time-frequency domain (HR-NMF).
Roland BadeauAngélique DremeauPublished in: ICASSP (2013)
Keyphrases
- non stationary
- em algorithm
- expectation maximization
- mixture model
- instantaneous frequency
- maximum likelihood
- empirical mode decomposition
- signal processing
- probabilistic model
- generative model
- gaussian mixture model
- parameter estimation
- exponential family
- incomplete data
- hidden variables
- unsupervised learning
- log likelihood
- probability density function
- image segmentation
- maximum a posteriori
- matrix factorization
- hyperparameters
- negative matrix factorization
- gaussian distribution
- density estimation
- independent component analysis
- information theoretic
- computer vision
- multiresolution
- pairwise
- graphical models