Keyphrases
- language model
- context sensitive
- language modeling
- n gram
- information retrieval
- speech recognition
- language modelling
- probabilistic model
- retrieval model
- document retrieval
- query terms
- query expansion
- test collection
- vector space model
- translation model
- relevance model
- question answering
- ad hoc information retrieval
- document ranking
- smoothing methods
- statistical language models
- text categorization
- passage retrieval
- document level
- word level
- query specific
- term dependencies
- natural language processing
- language models for information retrieval