Image database categorization using robust unsupervised learning of finite generalized dirichlet mixture models.
M. Maher Ben IsmailHichem FriguiPublished in: ICIP (2011)
Keyphrases
- mixture model
- image database
- unsupervised learning
- dirichlet distribution
- gaussian mixture model
- expectation maximization
- image retrieval
- density estimation
- image data
- supervised learning
- image content
- em algorithm
- semi supervised
- model selection
- content based retrieval
- generative model
- probabilistic model
- finite mixture models
- semi supervised learning
- dirichlet prior
- dimensionality reduction
- object recognition
- feature selection
- text categorization
- probability density function
- mixture modeling
- machine learning
- text classification
- maximum likelihood
- language model
- prior knowledge
- high dimensional
- reinforcement learning