Keyphrases
- language model
- language modeling
- n gram
- document retrieval
- probabilistic model
- language modelling
- query terms
- speech recognition
- information retrieval
- query expansion
- smoothing methods
- test collection
- relevance model
- document ranking
- out of vocabulary
- ad hoc information retrieval
- word error rate
- retrieval model
- mixture model
- translation model
- query specific
- generative model
- statistical language models