Learning overcomplete dictionaries with ℓ0-sparse Non-negative Matrix Factorisation.
Ken O'HanlonMark D. PlumbleyPublished in: GlobalSIP (2013)
Keyphrases
- sparse representation
- learning process
- learning algorithm
- dictionary learning
- sparse coding
- learning systems
- active learning
- reinforcement learning
- unsupervised learning
- data sets
- learning problems
- mobile learning
- face recognition
- linear combination
- knowledge acquisition
- online learning
- high dimensional
- empirical studies
- learning styles
- dimensionality reduction
- supervised learning
- state space
- training data
- incremental learning
- learning scheme