Mixture of latent trait analyzers for model-based clustering of categorical data.
Isabella GolliniThomas Brendan MurphyPublished in: Stat. Comput. (2014)
Keyphrases
- categorical data
- model based clustering
- mixture model
- expectation maximization
- em algorithm
- cluster analysis
- numerical data
- probabilistic model
- parameter free
- gaussian mixture model
- latent variables
- k means
- unsupervised learning
- hierarchical clustering
- maximum likelihood
- attribute values
- bayesian information criterion
- generative model
- clustering algorithm
- model selection
- document clustering
- mixture modeling
- hierarchical latent class models
- latent class models
- vector space model
- missing data
- clustering method
- image processing
- data model
- dirichlet distribution
- information retrieval
- distance based outlier detection
- data mining