Keyphrases
- language model
- language modeling
- document retrieval
- n gram
- probabilistic model
- retrieval model
- information retrieval
- query expansion
- test collection
- speech recognition
- language modelling
- statistical language models
- context sensitive
- smoothing methods
- retrieval effectiveness
- vector space model
- document ranking
- pseudo relevance feedback
- text retrieval
- query terms
- ad hoc information retrieval
- language modeling approaches
- translation model
- passage retrieval
- relevance model
- error rate
- active learning