Keyphrases
- language model
- language modeling
- dependency structure
- probabilistic model
- speech recognition
- retrieval model
- n gram
- language modelling
- information retrieval
- document retrieval
- test collection
- query expansion
- context sensitive
- vector space model
- machine learning
- statistical language models
- hidden markov models
- document ranking
- natural language
- smoothing methods
- ad hoc information retrieval
- language models for information retrieval
- language model for information retrieval