Keyphrases
- language model
- maximum likelihood estimation
- expectation maximization
- mixture model
- multivariate gaussian
- probabilistic model
- mixture of gaussians
- em algorithm
- language modeling
- maximum likelihood
- document retrieval
- n gram
- parameter estimation
- gaussian mixture model
- test collection
- context sensitive
- information retrieval
- query expansion
- probability distribution
- density function
- smoothing methods
- speech recognition
- retrieval model
- gaussian distribution
- generative model
- translation model
- covariance matrix
- probability density function
- density estimation
- hidden markov models
- dirichlet prior
- ad hoc information retrieval
- cross lingual
- graphical models
- bayesian networks
- image segmentation