Keyphrases
- language model
- language modeling
- document retrieval
- n gram
- speech recognition
- information retrieval
- probabilistic model
- retrieval model
- query expansion
- test collection
- context sensitive
- language modelling
- unsupervised learning
- ad hoc information retrieval
- statistical language models
- smoothing methods
- vector space model
- query terms
- semi supervised
- language models for information retrieval
- word error rate
- translation model
- relevance model
- text retrieval