Keyphrases
- mixture model
- gaussian mixture model
- em algorithm
- information retrieval
- probabilistic model
- density estimation
- generative model
- expectation maximization
- unsupervised learning
- language model
- model selection
- maximum likelihood
- mixture modeling
- probability density function
- finite mixtures
- computer vision
- closed form
- query expansion
- pairwise
- gaussian mixture
- training data