Blind source separation of more sources than mixtures using sparse mixture models.
Zhenwei ShiHuanwen TangYiyuan TangPublished in: Pattern Recognit. Lett. (2005)
Keyphrases
- mixture model
- blind source separation
- mixing matrix
- source separation
- eigenvalue decomposition
- source signals
- blind separation
- sparse representation
- independent component analysis
- gaussian mixture model
- non stationary
- generative model
- probabilistic model
- em algorithm
- model selection
- expectation maximization
- negative matrix factorization
- unsupervised learning
- speech signal
- maximum likelihood
- independent components
- gaussian mixture
- high dimensional
- language model
- feature vectors
- face recognition
- training set
- prior knowledge
- image classification
- dimensionality reduction