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