Keyphrases
- language model
- language modeling
- probabilistic model
- n gram
- document retrieval
- information retrieval
- query expansion
- retrieval model
- ad hoc information retrieval
- language modelling
- speech recognition
- context sensitive
- mixture model
- test collection
- statistical language models
- smoothing methods
- vector space model
- language model for information retrieval
- query terms
- relevance model
- cross lingual
- multiword
- document ranking
- query specific
- information retrieval systems