Keyphrases
- language model
- mixture model
- language modeling
- dependency structure
- probabilistic model
- n gram
- information retrieval
- document retrieval
- retrieval model
- language modelling
- test collection
- speech recognition
- query expansion
- document ranking
- language models for information retrieval
- statistical language models
- smoothing methods
- pseudo relevance feedback
- term dependencies
- context sensitive
- word error rate
- ad hoc information retrieval
- expectation maximization
- vector space model
- document length
- okapi bm
- information extraction