Discriminative estimation of interpolation parameters for language model classifiers.
Volker WarnkeStefan HarbeckElmar NöthHeinrich NiemannMichael LevitPublished in: ICASSP (1999)
Keyphrases
- language model
- n gram
- language modeling
- dirichlet prior
- probabilistic model
- document retrieval
- test collection
- parameter estimation
- language modelling
- speech recognition
- information retrieval
- query expansion
- context sensitive
- retrieval model
- decision trees
- translation model
- expectation maximization
- ad hoc information retrieval
- feature selection
- query terms
- mixture model
- smoothing methods
- statistical language models
- pseudo relevance feedback
- relevance model
- unsupervised learning
- maximum likelihood
- training set
- support vector
- language models for information retrieval
- language model for information retrieval
- maximum a posteriori