Kernel sparse representation for time series classification.
Zhihua ChenWangmeng ZuoQinghua HuLiang LinPublished in: Inf. Sci. (2015)
Keyphrases
- sparse representation
- regularized least squares
- dictionary learning
- sparse coding
- face recognition
- compressive sensing
- image classification
- compressed sensing
- joint optimization
- random projections
- image patches
- support vector
- nearest neighbor
- feature space
- dimensionality reduction
- signal processing
- sparse reconstruction
- negative matrix factorization
- kernel function
- high dimensional data
- kernel methods
- sparse coefficients
- sparse approximations
- feature extraction
- test images
- reproducing kernel hilbert space
- high resolution
- positive definite
- piecewise smooth
- neural network
- principal component analysis
- gaussian processes
- norm minimization
- sparsity constraints
- higher order