Keyphrases
- generative model
- probabilistic model
- discriminative learning
- mixture model
- discriminative models
- conditional random fields
- prior knowledge
- em algorithm
- semi supervised
- hierarchical hidden markov models
- generative and discriminative models
- object categories
- topic models
- hidden variables
- boltzmann machine
- graphical models
- similarity measure
- image segmentation
- feature selection
- representational power
- learning algorithm
- information retrieval