Parameter estimation and model-based clustering with spherical normal distribution on the unit hypersphere.
Kisung YouChanghee SuhPublished in: Comput. Stat. Data Anal. (2022)
Keyphrases
- parameter estimation
- normal distribution
- model based clustering
- em algorithm
- expectation maximization
- probability density function
- maximum likelihood
- mixture model
- gaussian distribution
- standard deviation
- random variables
- statistical models
- gaussian mixture model
- covariance matrix
- probability distribution
- least squares
- generative model
- parameter estimation algorithm
- model selection
- hierarchical clustering
- markov random field
- probabilistic model
- k means
- bayesian framework
- unsupervised learning
- maximum a posteriori
- image segmentation
- data points
- bayesian information criterion
- document clustering
- vector space model