Keyphrases
- language model
- language modeling
- information retrieval
- n gram
- probabilistic model
- document retrieval
- speech recognition
- retrieval model
- statistical language models
- language modelling
- pseudo relevance feedback
- context sensitive
- test collection
- query expansion
- query terms
- vector space model
- relevance model
- document ranking
- smoothing methods
- language models for information retrieval
- ad hoc information retrieval
- decision trees