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