Natural Gradient Flow in the Mixture Geometry of a Discrete Exponential Family.
Luigi MalagòGiovanni PistonePublished in: Entropy (2015)
Keyphrases
- exponential family
- gradient flow
- maximum likelihood
- mixture model
- statistical models
- graphical models
- density estimation
- closed form
- log likelihood
- variational methods
- missing values
- curve evolution
- level set
- active contours
- order statistics
- energy functional
- three dimensional
- markov chain monte carlo
- probability density function
- partial differential equations
- active contour model
- hidden variables
- level set method
- gaussian mixture model
- em algorithm
- dimensionality reduction
- computer vision