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