Keyphrases
- language model
- language modeling
- n gram
- information retrieval
- probabilistic model
- query expansion
- speech recognition
- test collection
- document retrieval
- context sensitive
- language modelling
- retrieval model
- smoothing methods
- statistical language models
- query terms
- vector space model
- document ranking
- pseudo relevance feedback
- machine learning
- co occurrence
- query specific
- word error rate
- ad hoc information retrieval
- language models for information retrieval