DALM-SVD: Accelerated sparse coding through singular value decomposition of the dictionary.
Hugo R. GonçalvesMiguel V. CorreiaXin LiAswin C. SankaranarayananVítor TavaresPublished in: ICIP (2014)
Keyphrases
- singular value decomposition
- sparse coding
- sparse representation
- sparse codes
- dimensionality reduction
- dictionary learning
- discriminative dictionary
- reconstruction error
- image classification
- natural images
- singular values
- dimension reduction
- unsupervised learning
- principal component analysis
- subspace learning
- face recognition
- least squares
- low rank
- image representation
- linear combination
- high dimensional data
- feature space
- image patches
- latent semantic analysis
- random projections
- negative matrix factorization
- visual words
- feature extraction
- feature vectors
- generative model
- signal processing
- low rank approximation
- feature selection
- data sets