Keyphrases
- generative model
- feature representations
- mixture model
- probabilistic model
- visual patterns
- discriminative models
- deep belief networks
- discriminative learning
- conditional random fields
- hierarchical hidden markov models
- em algorithm
- hierarchical models
- semi supervised
- prior knowledge
- maximum entropy principle
- topic models
- generative and discriminative models
- expectation maximization
- hidden variables
- image classification
- language model
- representational power
- information retrieval
- data sets