Keyphrases
- language model
- language modeling
- n gram
- speech recognition
- probabilistic model
- language modelling
- language modeling approaches
- clustering method
- document level
- document retrieval
- query expansion
- statistical language models
- dependency structure
- sentence retrieval
- retrieval model
- information retrieval
- k means
- clustering algorithm
- ad hoc information retrieval
- test collection
- context sensitive
- smoothing methods
- language model for information retrieval
- relevance model
- vector space model
- query terms
- document ranking
- multiword
- pseudo relevance feedback
- language models for information retrieval
- passage retrieval
- language modeling framework
- natural language