Keyphrases
- language model
- language modeling
- n gram
- probabilistic model
- speech recognition
- language modelling
- information retrieval
- query expansion
- document retrieval
- ad hoc information retrieval
- statistical language models
- test collection
- retrieval model
- mixture model
- vector space model
- translation model
- context sensitive
- query terms
- relevance model
- smoothing methods
- maximum a posteriori
- document ranking
- multiword
- pseudo relevance feedback
- dependency structure