Alternatives to the EM algorithm for ML estimation of location, scatter matrix, and degree of freedom of the Student t distribution.
Marzieh HasannasabJohannes HertrichFriederike LausGabriele SteidlPublished in: Numer. Algorithms (2021)
Keyphrases
- em algorithm
- maximum likelihood
- maximum likelihood estimation
- parameter estimation
- expectation maximization
- maximum likelihood estimates
- log likelihood function
- mixture model
- probability density function
- likelihood function
- mixture distribution
- gaussian mixture model
- probability density
- generative model
- gaussian distribution
- scatter matrix
- density estimation
- gaussian mixture
- maximum a posteriori
- power law
- expectation maximisation
- linear discriminant analysis
- image processing
- point correspondences
- feature extraction