Keyphrases
- language model
- language modeling
- probabilistic model
- n gram
- document retrieval
- information retrieval
- speech recognition
- query expansion
- test collection
- retrieval model
- language modelling
- relevance model
- statistical language models
- smoothing methods
- ad hoc information retrieval
- language model for information retrieval
- okapi bm
- bayesian networks
- translation model
- passage retrieval
- vector space model
- query terms
- document ranking
- context sensitive
- retrieval effectiveness
- named entities