Underdetermined Blind Source Separation for Heart Sound Using Higher-Order Statistics and Sparse Representation.
Yuan XieKan XieShengli XiePublished in: IEEE Access (2019)
Keyphrases
- sparse representation
- higher order statistics
- blind source separation
- mixing matrix
- independent component analysis
- negative matrix factorization
- signal processing
- source signals
- blind separation
- source separation
- sparse coding
- image classification
- face recognition
- random projections
- probability density function
- image representation
- image patches
- gaussian distribution
- principal component analysis
- dimensionality reduction
- high dimensional data
- neural network
- multiscale
- data sets
- feature vectors