Severity of Local Maxima for the EM Algorithm: Experiences with Hierarchical Latent Class Models.
Yi WangNevin Lianwen ZhangPublished in: Probabilistic Graphical Models (2006)
Keyphrases
- em algorithm
- hierarchical latent class models
- expectation maximization
- cluster analysis
- mixture model
- maximum likelihood
- parameter estimation
- maximum likelihood estimation
- gaussian mixture model
- generative model
- multiscale
- hyperparameters
- expectation maximisation
- hidden variables
- observed variables
- categorical data
- latent class models
- incomplete data
- gibbs sampling
- bayesian networks
- image processing
- mixture modeling
- k means
- parameter learning
- maximum a posteriori
- machine learning
- co occurrence