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