Riemannian Laplace Distribution on the Space of Symmetric Positive Definite Matrices.
Hatem HajriIoana IleaSalem SaidLionel BombrunYannick BerthoumieuPublished in: Entropy (2016)
Keyphrases
- symmetric positive definite matrices
- dictionary learning
- valued data
- matrix valued
- vector space
- riemannian manifolds
- sparse coding
- riemannian metric
- log euclidean
- sparse representation
- euclidean space
- covariance matrices
- generative model
- similarity search
- tensor field
- geometric structure
- gaussian distribution
- mean shift
- higher dimensional
- multi class classification
- diffusion tensor
- feature vectors
- square root
- fisher information
- parameter space
- partial differential equations
- low dimensional