Keyphrases
- language model
- language modeling
- n gram
- probabilistic model
- language modelling
- document retrieval
- speech recognition
- information retrieval
- statistical language models
- query expansion
- smoothing methods
- relevance model
- test collection
- language model for information retrieval
- retrieval model
- context sensitive
- pseudo relevance feedback
- language models for information retrieval
- vector space model
- document ranking
- query terms
- passage retrieval
- vector space
- ad hoc information retrieval
- clustering algorithm
- translation model
- ad hoc retrieval
- machine learning
- okapi bm
- low dimensional