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