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