A Nonparametric Mixture Model for Topic Modeling over Time.
Avinava DubeyAhmed HefnySinead WilliamsonEric P. XingPublished in: SDM (2013)
Keyphrases
- mixture model
- topic modeling
- density estimation
- topic models
- generative model
- dirichlet process
- probabilistic model
- latent dirichlet allocation
- em algorithm
- gaussian mixture model
- text mining
- expectation maximization
- language model
- model selection
- maximum likelihood
- text classification
- hierarchical bayesian
- latent topics
- collaborative filtering
- dirichlet process mixture models
- probability density function
- unsupervised learning
- gibbs sampling
- feature extraction
- machine learning
- latent variables
- text documents
- graphical models