Keyphrases
- language model
- language modeling
- n gram
- document retrieval
- speech recognition
- probabilistic model
- language modelling
- query expansion
- information retrieval
- retrieval model
- query terms
- test collection
- statistical language models
- ad hoc information retrieval
- vector space model
- relevance model
- context sensitive
- document ranking
- language models for information retrieval
- translation model
- word error rate
- language model for information retrieval
- smoothing methods
- pseudo relevance feedback
- named entities
- error rate
- query specific
- feature selection
- search engine