Alternating minimization for dictionary learning with random initialization.
Niladri S. ChatterjiPeter L. BartlettPublished in: NIPS (2017)
Keyphrases
- dictionary learning
- alternating minimization
- sparse representation
- compressive sensing
- sparse coding
- spatially varying
- total variation
- map estimation
- kullback leibler divergence
- image classification
- random projections
- point spread function
- k means
- image restoration
- natural images
- image patches
- data sets
- small number
- machine learning