Keyphrases
- language model
- language modeling
- n gram
- probabilistic model
- information retrieval
- document retrieval
- speech recognition
- language modelling
- query expansion
- test collection
- retrieval model
- statistical language models
- vector space model
- language models for information retrieval
- context sensitive
- smoothing methods
- relevance model
- ad hoc information retrieval
- pseudo relevance feedback
- passage retrieval
- term dependencies
- machine learning
- query terms
- document length
- language model for information retrieval
- document ranking
- cross lingual
- retrieval effectiveness
- text classification