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