Overcomplete source separation using Laplacian mixture models.
Nikolaos MitianoudisTania StathakiPublished in: IEEE Signal Process. Lett. (2005)
Keyphrases
- mixture model
- source separation
- sparse coding
- generative model
- blind source separation
- sparse representation
- unsupervised learning
- em algorithm
- independent component analysis
- gaussian mixture model
- denoising
- natural images
- probabilistic model
- model selection
- linear combination
- maximum likelihood
- expectation maximization
- temporal structure
- single channel
- language model
- face recognition
- gaussian process
- object recognition
- feature extraction
- image representation
- machine learning
- prior information
- bayesian framework
- active learning
- audio features
- semi supervised