Keyphrases
- language model
- language modeling
- document retrieval
- n gram
- speech recognition
- information retrieval
- probabilistic model
- language modelling
- query expansion
- retrieval model
- test collection
- statistical language models
- context sensitive
- smoothing methods
- query terms
- ad hoc information retrieval
- document ranking
- language model for information retrieval
- translation model
- pseudo relevance feedback
- mixture model
- feature selection
- language models for information retrieval
- search engine