Direct Optimization of the Dictionary Learning Problem.
Alain RakotomamonjyPublished in: IEEE Trans. Signal Process. (2013)
Keyphrases
- dictionary learning
- direct optimization
- learning to rank
- optimization methods
- sparse representation
- sparse coding
- sparse pca
- evaluation measures
- generative model
- information retrieval
- natural images
- face recognition
- language model
- neural network
- linear combination
- optimization problems
- ranking functions
- multiscale
- similarity measure
- decision trees
- computer vision
- learning algorithm