Keyphrases
- language model
- smoothing methods
- language models for information retrieval
- language modeling
- statistical language modeling
- language modeling approaches
- n gram
- speech recognition
- query expansion
- document length
- probabilistic model
- retrieval model
- document retrieval
- statistical language models
- dirichlet prior
- language modeling framework
- test collection
- language modelling
- information retrieval
- translation model
- ad hoc information retrieval
- context sensitive
- query terms
- vector space model
- document ranking
- query specific
- text classification