Keyphrases
- language model
- language modeling
- n gram
- information retrieval
- probabilistic model
- retrieval model
- query expansion
- language models for information retrieval
- language modelling
- document retrieval
- test collection
- speech recognition
- context sensitive
- statistical language models
- pseudo relevance feedback
- vector space model
- ad hoc information retrieval
- query terms
- relevance model
- translation model
- okapi bm
- machine learning
- statistical language modeling
- word error rate
- document length
- co occurrence
- term dependencies
- query specific
- document ranking