Keyphrases
- language model
- language modeling
- n gram
- document retrieval
- probabilistic model
- query expansion
- speech recognition
- language modelling
- retrieval model
- statistical language models
- information retrieval
- vector space model
- context sensitive
- smoothing methods
- training set
- test collection
- query terms
- ad hoc information retrieval
- pseudo relevance feedback
- document ranking
- document length
- language model for information retrieval
- retrieval effectiveness
- word error rate
- recommender systems
- decision trees