Group Sparse Representation for Prediction of MCI Conversion to AD.
Xiaoying ChenKaifeng WeiManhua LiuPublished in: ICIC (2) (2015)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- mild cognitive impairment
- reconstruction error
- compressive sensing
- image classification
- ad patients
- random projections
- signal processing
- image patches
- compressed sensing
- joint optimization
- dimensionality reduction
- norm minimization
- regularized least squares
- high degree of accuracy
- piecewise smooth
- sparse approximations
- negative matrix factorization
- high dimensional data
- image representation
- blind source separation
- brain images
- test images
- higher order
- small number
- sparse reconstruction
- decision trees
- machine learning