Keyphrases
- language model
- language modeling
- n gram
- document retrieval
- speech recognition
- probabilistic model
- retrieval model
- language modelling
- test collection
- information retrieval
- query expansion
- smoothing methods
- statistical language models
- language model for information retrieval
- mixture model
- ad hoc information retrieval
- pseudo relevance feedback
- translation model
- document ranking
- vector space model
- document length
- context sensitive
- query terms
- query specific
- dirichlet prior
- maximum likelihood