Keyphrases
- language model
- language modeling
- speech acts
- n gram
- speech recognition
- information retrieval
- probabilistic model
- document retrieval
- query expansion
- language modelling
- retrieval model
- context sensitive
- ad hoc information retrieval
- smoothing methods
- pseudo relevance feedback
- statistical language models
- natural language
- vector space model
- translation model
- test collection
- okapi bm
- language models for information retrieval
- document ranking
- relevance model
- word error rate
- semantic information
- language model for information retrieval