Parameter Estimation for a Simple Hierarchical Generative Model for XML Retrieval.
Paul OgilvieJamie CallanPublished in: INEX (2005)
Keyphrases
- parameter estimation
- generative model
- em algorithm
- xml retrieval
- expectation maximization
- maximum likelihood
- markov chain monte carlo
- pitman yor process
- probabilistic model
- least squares
- parameter learning
- parameter estimation algorithm
- maximum likelihood estimation
- markov random field
- topic models
- model selection
- bayesian framework
- posterior probability
- latent dirichlet allocation
- conditional random fields
- likelihood function
- gibbs sampling
- test collection
- posterior distribution
- approximate inference
- information retrieval
- image segmentation
- document collections
- optical flow
- information extraction
- image processing
- machine learning
- parameter estimates
- computer vision