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