Keyphrases
- generative model
- probabilistic model
- mixture model
- em algorithm
- discriminative learning
- semi supervised
- hierarchical hidden markov models
- conditional random fields
- object categories
- prior knowledge
- discriminative models
- generative and discriminative models
- maximum entropy principle
- higher order
- hidden variables
- image processing
- representational power
- language model
- expectation maximization
- pairwise
- machine learning