Keyphrases
- language model
- language modeling
- n gram
- document retrieval
- retrieval model
- statistical language models
- speech recognition
- probabilistic model
- information retrieval
- query expansion
- language modelling
- context sensitive
- test collection
- ad hoc information retrieval
- pseudo relevance feedback
- smoothing methods
- language models for information retrieval
- relevance model
- document ranking
- natural language processing
- document length
- language model for information retrieval
- vector space model
- retrieval effectiveness
- active learning
- term dependencies
- word error rate
- query specific
- okapi bm
- web search