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