Keyphrases
- language model
- language modeling
- probabilistic model
- n gram
- document retrieval
- information retrieval
- speech recognition
- retrieval model
- query expansion
- test collection
- context sensitive
- language modelling
- statistical language models
- query terms
- vector space model
- pseudo relevance feedback
- ad hoc information retrieval
- translation model
- smoothing methods
- document length
- language model for information retrieval
- machine learning
- relevance model
- decision trees