Keyphrases
- language model
- language modeling
- n gram
- probabilistic model
- document retrieval
- statistical language models
- retrieval model
- speech recognition
- information retrieval
- test collection
- query expansion
- vector space model
- relevance model
- document ranking
- smoothing methods
- language modelling
- context sensitive
- pseudo relevance feedback
- ad hoc information retrieval
- query terms
- document length
- language models for information retrieval
- language model for information retrieval
- term dependencies
- passage retrieval
- natural language