A semi-blind EM algorithm for overcomplete ICA.
Qiu-Hua LinNing XuHualou LiangPublished in: ICASSP (2009)
Keyphrases
- em algorithm
- independent component analysis
- expectation maximization
- mixture model
- maximum likelihood
- parameter estimation
- maximum likelihood estimation
- gaussian mixture model
- natural images
- generative model
- likelihood function
- face recognition
- sparse representation
- feature extraction
- incomplete data
- model based clustering
- expectation maximisation
- probability density function
- gaussian mixture
- hidden variables
- likelihood maximization
- maximum a posteriori
- image segmentation
- log likelihood
- finite mixture model
- bayesian networks
- penalized likelihood
- bayesian framework
- principal component analysis
- probabilistic model
- log likelihood function