Dictionary Training for Sparse Representation as Generalization of K-Means Clustering.
Sujit Kumar SahooAnamitra MakurPublished in: IEEE Signal Process. Lett. (2013)
Keyphrases
- sparse representation
- sparse coding
- dictionary learning
- face recognition
- image patches
- joint optimization
- dimensionality reduction
- image classification
- random projections
- sparse approximations
- compressive sensing
- reconstruction error
- signal processing
- high dimensional data
- learned dictionary
- training set
- negative matrix factorization
- image representation
- test images
- regularized least squares
- computer vision
- supervised learning
- compressed sensing
- piecewise smooth
- sparse coefficients
- neural network
- spectral clustering
- data sets
- image reconstruction
- data analysis
- multiscale
- clustering algorithm
- sparse reconstruction
- machine learning