Keyphrases
- language model
- language modeling
- n gram
- information retrieval
- probabilistic model
- document retrieval
- retrieval model
- speech recognition
- query expansion
- mixture model
- ad hoc information retrieval
- language modelling
- statistical language models
- test collection
- query terms
- pseudo relevance feedback
- context sensitive
- vector space model
- relevance model
- smoothing methods
- language model for information retrieval
- document ranking
- multiword
- query specific
- statistical machine translation
- document length
- co occurrence
- statistical language modeling
- feature selection