Keyphrases
- language model
- language modeling
- probabilistic model
- document retrieval
- speech recognition
- information retrieval
- n gram
- retrieval model
- language modelling
- query expansion
- language models for information retrieval
- test collection
- learning algorithm
- query terms
- ad hoc information retrieval
- statistical language models
- feature selection
- relevance model
- passage retrieval
- vector space model
- document length
- context sensitive
- language model for information retrieval
- web pages