Maximum marginal likelihood estimation for nonnegative dictionary learning.
Onur DikmenCédric FévottePublished in: ICASSP (2011)
Keyphrases
- dictionary learning
- marginal likelihood
- sparse representation
- sparse coding
- model selection
- gaussian process
- closed form
- parameter estimation
- information criterion
- cross validation
- face recognition
- bayesian information criterion
- hyperparameters
- linear combination
- natural images
- objective function
- image reconstruction
- density estimation
- feature space
- exponential family
- object recognition
- computer vision